GPZ Turbo project rego'd

[Benz]

http://www.streetfighters.com.au/forum/upload/834831406198684.jpg
Here's my gpz turbo now fitted with a gixxer '98 front and '91 rear end.
The motor is off getting an 810 Wiseco kit, new gearbox,and reconned head. Should be good for about 140 horses, and 140nm torque, I'm hoping. Obviously the front wheel is yet to be sorted, and I'm thinkin I'll just drop the complete front end in from my L Gixxer, as I want to retain the original GPZ speedo/dash, I'll need to have a speedo drive I can adapt to suit, the '98 forks and spindle don't help here.
Yeah, I know, what's the fairing doing on it[^]!! It's staying,and although it was a bastard to make it fit the usd's,I'm happy with the outcome. Bike will sit about 50mm lower at the front, making the fairing that much lower , and the arse end will be about 40mm higher than stock, with 17" wheels both ends it should settle into a nice nose down, arse up look.
I need to get hold of a pair of clipon risers, as I can't use the renthal bars method, as I want to mount the original indicator/idiot lights in that space.Problem there is everyone wants a friggin fortune for them:(
There's also the problem with the footpeg mounts, they rub against the larger swinger, and there's still plenty of other mods to go, but the beast will be on the road/track soon enough[8D]

[Gix11]

Looks like it's coming together nicely mate. The USDs really give it some body don't they? Are you keeping the side fairing half way down your engine cradle as well? It's just begging to lose that nose fairing mate. As soon as the flat bars go on it might change your mind. If you can pull the invisible front wheel off I reckon you're onto something mate.

[Benz]

Yeah Si,
I'm gonna try and keep all the original fairings, the alloy brace, and lower pan [obviously not in the photo!] included. It's a part of the bike that separates it from the N/A models, and buffed up will look schmick.
I put the tyre in there to gain some perspective, to see if the usd's would give me clearance for the turbo, and it looks OK.
Sure would be a lighter front end with the 'invisible wheel' but I think there could be problems slowing down[:o)]

[Slingblade]

those perspex wheels look amazing;)

Looks good mate. Your right Si it is always amazing how a set of USD'S and 17 incher instantly modernises the look of any aged bike. Imagine how good a condition those fairings would stay in hanging on your wall???:D

It will look great either way.

And with flat bars you'll have much better control of all those ponies on the road.;)

[cutcat]

Benz, how hard was the swingarm conversion?

[evad]

Looking sweet Benz, what FI are you running? Stock with race mode enabled?

[Benz]

The swinger changeover was pretty simple. The internal pivot spacer from the GPZ is swapped into the Gixxer arm [after destroying a pivot bearing on each]then you can use the original GPZ pivot bolt, the gixxer pivot bearings are virtually the same size,2x1mm spacer washers either side, and its in.
The Gixxer lower link has to be slimmed a little but will fit the GPZ mount.It fouls on the rear of the frame mount, so I tapered it a little on the linisher, and its free. There's also the problem of footpeg mounts.fouling the arm's movement. as to what I'm doing there is still a mystery
Ozcat sent me some extended dogbones, which are on the bike now, so they set the rear ride height, at this stage. I may make up some adjustables, so I can fine tune it later...
Stock fuel injection[dfi],race mode enabled, adjusted with a 5k pot,a malpassi adjustable fuel pressure regulator,adjustable boost controller from 8-16psi, with an uprated Ht10 to Ht 12 turbo[mazda RX7 internals]. It's not a fullon drag setup, but should make for a rush of a roadbike. The extra compression from the wisecos,[from 7.6 to 8.5/1] and another 74cc should give it good kick in the pants down low, and it was always fun on boost, so I should just get more betterer fun

[evad]

Are you on 750turbo.com? I see that Lorcan is getting 238 hp out of his now and over 200mph so the motors can definatly put out some horses. Should be a fun bike when its done :D

[Benz]

I joined 750turbo.com early 2002?, when I first bought the bike as a barely running mess from the local wreckers. It looked like someone had blasted it with a shotgun, there were that many dents in the bodywork.:( It got a complete [less motor]rebuild then , and it ran strongly , until the gearbox shit itself, and started jumping out of second. Okay [^]it was about 60 ft and 1.9sec out when it first jumped outa gear.......so I can't complain. Then the turbo shit itself, so it was rebuilt bigger and much better, spools up a heap faster with the larger compressor wheel.
I'm not lookin for big horsepower really,[sure..!] but I DO want a heap of torque, so we're goin small turbo, fast spool up[:p]

[cutcat]

Hey Benz, I am way impressed and thanks for the detailed review of what you have done. Can you explain about the race mode enabled box? and what fuel pressure are you running at max boost?

[Benz]

I'm not sure of my fuel pressure,and with the 810 kit , it will have to be reset anyway. This time around I'll have a F/P guage on board.....and setup on a dyno.
Race mode [on the turbo motor DFI only] is enabled by disconnecting two wires and inserting a 5KA potentiometer between them, to adjust fuel delivery +/- 20%over the entire map. It's a bit crude, and affects idle, usually making it a heap rich, so the throttle position indicator must be backed off a little.....easier said than done, as it's incredibly sensitive.The best part of race mode is it removes the 'overboost'settings, so you can dial up more pressure, and not have the bike cutout at max torque, somewhere around 6.5K revs [family jewels slam into tank, then once throttle is reduced, power is restored, and you're at the back of the seat,fighting to regain control!]Race mode also keeps delivering fuel on a trailing throttle, so when you accelerate again, there is less lag. Not very enviromentally responsible..., but helps keep the exhaust flaming.......
You can find out more details from 750Turbo.com, where I got most of my info. Lorc has a FAQ section, it's in there.

[Benz]

http://www.streetfighters.com.au/forum/upload/343851664174707.jpg
Here's the LHS, old huge rubber topped chunk a steel GPz peg and frame mounted gearchange gone, replaced with Gixxer peg/shift combo. I welded the geep mount to the gsxr peg, and fitted to the rear hole of the geep peg, Now sits 20mm higher, 20mm back. Still rough, there's plenty of tidying up to do yet...

[Benz]

http://www.streetfighters.com.au/forum/upload/343851664140209.jpg
Still got to find a place for the switch, and a spring, and obviously got to mount the actuator to pedal, but there is clearance, and the ugly cylinder mount has been ground off, making for a more balanced look, I hope....
This way you don't have to space the mounts to clear the swinger, and pegs are up and back, and shitloads lighter. Plenty to do yet, but I'm getting there.:)

[fimpBIKES]

piss the switch+spring off mate,
stu sells a little switch that replaces one of the banjo bolts


saves a lot of fucking about

[shift1313]

the bike is looking good. I remember when i threw my upper on just for kicks. Mine looked bad on there because the front was so much lower. I dont think i have any pics of it unfortunately. I see you are working out your footpegs just fine. I had the same problem and actually left a nice little chunk on my swingarm with the rear mastercylinder pivot. On your suspension linkage did you not have any clearance issues running straight to the swingarm? I had some straight linkage on my bike and the rear end sat really sqwatted.
http://filebox.vt.edu/users/maperez/GPz/linkage3small.JPG
What rear wheel are you running? if you are running a 5.5" you are going to have some fun lining up your sprockets. I think i moved my rear sprocket in towards the wheel a bit to get things right. I think HPU still offers an offset 530 sprocket for the turbo model up front. When i pulled the spacers out of my gpz swingarm it didnt destroy any bearings but mine slide in perfect in place of the inner spacer on the gsxr arm. The only part thats kinda funny is the small steped spacer the gpz arm uses. I used it on my bike but im going to make a replacement to the bearings get loaded properly.

I cant wait to see more pics of your bike, good luck with it.

[Benz]

Thanks Fimp, I've sent Stu an email, that switch will make things a lot easier, as there is precious little space left..... and I've still got to get a return spring on somehow.
Matt, my GPz arm would not give up its spacer without destroying a roller bearing, maybe it was the crap on the outside of the spacer that prevented it from sliding out.....who knows, I've replaced them now anyway.
There doesn't seem to be any hangups with straight links, but I will have fun getting the chain to pass over the top of the arm as it is, so there may be issues still to work out.I am considering trying to reverse the arm, so the linkage mount will be on the bottom,the '91 gixxer arm does look like it's symetrical, just haven't put a tape to it to find out for sure, but it would solve any clearance issues with the linkages.I'll go with it as it is, until the motor goes in, and look at it from there. I have used the gixxer bottom pivot, it looks like you went with the original, which is a different configuration
You're right about the weird little spacer from the Geep, I left mine out for now, but will have to do something about it when the bike is torn down to bare frame for a repaint
HPU is off my list, too many sus sales to guys on 750 turbo.com to deal with Mike. I'll probably just weld another cog to the original, and get about 8-10mm extra width, maybe lathe the outer face of the cushdrive[another 8mm there] and reverse the rear cog, good for another 2mm. I had to do something similar on the Katana dragbike, worked well.

[RussVC]

Hey Benz try Afam in Japan for a 530 offset sprocket, 3500yen which works out to $37-50 plus postage, I'm currently running a 630 chain on my Katana with 5.5" and 170 rear combo but will be upgrading to 530 stuff soon. http://www.afam.co.jp/E/menu_index/offset.htm

[trx900]

benz I have been keep in my eye on this post and I really like how your bike is coming along, as I used to own one of these bikes in 1987 it was my first big bike I traded my rz350 in on it, keep up the good work and I look forward to seeing it when it's finished.

[shift1313]

hey benz, the arm is not symetrical, and it looks like your using the same brake caliper as me, but mine has a machined channel inside the arm for the orig caliper to slide in. I had to make a spacer for the left side of my wheel so the nuts on the sprocket didnt hit the swingarm. I know for a fact there would be clearance issues on the flip side as well. I had to make a chain roller for the lower part of my frame(old center stand mount) so my chain didnt hit the lower frame when the chain slapped around on decel. I might have to revisit that as well. Also im pretty sure the 750 and turbo motors were in the same location so on your rear with a 5.5" wheel you are going to have to shim your front out a very decent amount. I made a 5/8" offset sprocket and machine the cush drive up a bit and that wasnt enough. When i was riding the bike i had some chain misalignment that i didnt like. Thats one of my projects today is to figure out what to do about that. I want it right this time. If the motor was so wide it shift it over 1/2" to help out but that causes problems with ground clearance, weight distribution and getting the header on. If you want me to try and snap some pics to show you what your working with id be glad to. The chain slider that goes over the front of the arm(stock gsxr) rubs the geep frame. atleast the 95 unit does. I actually had a 92 unit on there for awhile(same as yours) and it lined up fine, weird. I think it was the difference between a 5" and a 5.5" rear rim.

[shift1313]

if anyone with a gpz was wondering about the spacers here are some pics.
http://inline4.motorrijden.nl/archives/images/swingarm.jpg
here is the little one we mentioned. the outter lip is the part that has the correct diameter, not the smaller section.
http://inline4.motorrijden.nl/archives/images/eccentric.jpg

in between the marks are the places i had to file down the arm to clear the motor.
http://inline4.motorrijden.nl/archives/images/marks.jpg

another thing i thought you might like benz, i took the weight of alot of the components from my bike. I havent had the front end off yet but that is the last thing on my list. I was interested because i left alot of stuff off and im down to 400lbs right now. I know the turbo frame is a little different. I think thicker tubing, but the rest of the stuff should apply to you. Oh that fiberglass tailsection was another project, not the one im working on now. it is a stock tailsection with integrated hand rails. Those handrails are heavy, but i opted to shorten my bike so ive just got that sitting around.


Tail Section with Grab Rails 2.5lbs
Fiberglass Tailsection <0.5lbs
Taillight 1.5lbs
Headlight 2.5lbs
Fairing Stay 1.5lbs
Gauges 2.25lbs
Carbs 7.5lbs
Front End with Tripples, Wheel,
Calipers, Anti-dive & Handlebars 70.0lbs
Rear End with Wheel, Caliper & Stay,
Sprocket and Chain Slider 64.0lbs
Rear Set (Left Hand Side) 2.5lbs
Rear Set (Right Side) 6.0lbs
Seat 5.0lbs
Fox Shock 7.0lbs
Handlebar Control (RH) 0.5lbs
Handlebar Control (LH) 0.5lbs
Tripple Clamp Warning Lights 0.25lbs
Inner Fenders cut for fender elim kit 0.5lbs
Kerker Muffler 2.25lbs
Battery 10.5lbs
Small Sealed battery 3.75lbs
GSXR Flat Slides 7.5lbs
Triumph Headlight + bracket 6.5lbs
Upper Fairing with Windscreen 6.75lbs
GSXR Rear Wheel,sprocket&carrier,rotor,metz 180tire 35.0lbs
GSXR Swing Arm with top brace 17.0lbs
GSXR Rear Caliper 2.0lbs

[fimpBIKES]

nice work mate

one of my rules is that it HAS to be lighter than standard
otherwise you better have a bloody good reason :D



also, you say you had to file down the swinger in between those marks
are we talkin a few mm flattened off? or was it more severe than that?

[shift1313]

it wasnt much. i did it all with a hand file. If you look at it, suzuki already has a few flat spots to clear the gsxr motor. I didnt have to take off as much as they did if that helps you at all.

[shift1313]

benz, i took some measurements today of my sprocket. The one i made was 14mm offset from the mounting face to the back of the sprocket. Its a 16tooth sprocket. Last year pbi did a special run of 530 offset gpz sprockets for a group i belong to and they were roughly 6mm offset from the back side. I took some measurements and lined some things up and it looks like i would have to add atleast another 5mm spacer to that sprocket to get it to work. This is with some modification to the rear. I used an aluminum sprocket specialist rear sprocket that had a counter sunk area where the studs came through the cush drive hub. I flipped the sprocket around and made a thin spacer shim so the sprocket was offset towards the center of the wheel. This got it as close to the tire as possible without having any clearance issues with the chain/tire. If you run a 5.5" rim and you leave the sprocket how it is supposed to be you will hit the frame near the foot peg area if you run a 530 oring chain. If you run a 5" rim you might not have as much of a problem as i do. If you want any more details let me know. Im going to run a roller chain to give me some more clearance and let me shift things around. I really dont like having so much offset on the counter shaft because eventually its going to cause the seal to leak. Im thinking about trying to use a counter shaft from another bike, maybe something longer. I wonder if a zx10 will work;)

[Benz]

Cheers Russ, thanks for the link. TRX, strange mate, my first roadbike was an earlier RD350,hell of a way to learn to ride. Spent more time trying to keep the front on the ground, than anything else....great little strokers.
Matt, you're a fountain of info mate, thanks for the tips. Nice to see I'll be well below the 400 lb mark, according to your efforts. I've located my front end now,[thanks Devo!!] so it will definately be a set of '91 gsxr usd's,with '98 brakes, which will lower that weight figure even further. I'd hoped to loose about 60 lbs off the bike ultimately, [fat pig that it is....:D], so the 810 has less to carry around, and the suspension and brakes will be working in a similar weight range to the original application...or close anyway.The '98 USD's on the bike now are for sale....
The turbo motor has the aircleaner low, next to the countershaft sprocket, maybe some of the back of that assembly will have to be removed for clearance.I have long stopped using it, and have a K+n pod filter on the turbo itself.
How much material did you remove from the front of the '96 swinger? Do you know if the'91 arm has the same measurements.? I wasn't expecting that......[^]

[shift1313]

well mine is a 95 arm. same as your just with the brace i think. I didnt take much off, just with a hand file and about 30mins of time. I actually had a 91 arm to start with but had a 95 come along and like the brace on there. As far as motor clearance. My front is 2" lower so my clearance is way different. I can lean the bike over 54 degrees with no suspension compression and the pegs hit, but under load its way different. My pickup cover and stator cover are the first things to hit under lean. here is a pic, its kinda hard to see but you can see how far my foot is up and how close the case is to the ground.
http://filebox.vt.edu/users/maperez/bike%20pics%20sept%207/lean3.jpg
Im not sure how much of a drop you are going to have but my front end is a 1990 so probably pretty close. Also you should know that your fairing will look way different with that much drop.

Right now im trying to gather some info on different counter shafts that might swap into the bike. If i get any info ill pass it along. Im hoping to find a good option without having to shim my sprocket out or reweld another one up.

[Benz]

http://www.streetfighters.com.au/forum/upload/828899203186684.jpg

Just a bit of painting, bloody wet season sees black paint blush before it gets out of the gun!!

[Benz]

http://www.streetfighters.com.au/forum/upload/828899203235536.jpg

Frame painted, ready for assembly

[Benz]

http://www.streetfighters.com.au/forum/upload/828899203176782.jpg

Well , it's on the stand, bits are making their way onto the frame.
I have my rebuilt 810 engine under wraps, waiting for the big day.
Had a few issues with the swingarm fitment, but got it sorted with a pair of 11.5mm spacers at each side. The original GPZ arm had a bearing on the chain side, leaving the internal spacer 23mm short.Still to get my adjustable dogbones mounted, as I must convert from metric to imperial sizes to accomodate the rodends. Bugger:(
All good now, just have to sort the chain alignment, and a million other issues:D

[shift1313]

its coming along. have you fitted the swingarm with the motor in yet? just wondering if you had the clearance problem as well. was that brace near the headder area stock on your frame? i dont think my 750 has it

[Benz]

Matt, the brace on the frame near the headers is exclusive to the turbo model.
I remember you said earlier there was a motor/swingarm clearance issue, but the original arm is about the same thickness at the pivot as the suzi arm I'm using, hoping to get a clean fit without having to grind the front back a little. If not, it will just be another job added to the list!

[shift1313]

haha, i couldnt remember if the stock arm had some flats machined in it or not. I know my gsxr arm does, they just happened to be in the wrong spot.

[Benz]

http://www.streetfighters.com.au/forum/upload/282898802156605.jpg

Ready to drop the motor in[:p]

[Benz]

http://www.streetfighters.com.au/forum/upload/282898802164541.jpg

Motor in, no swingarm clearance issues, now to throw a few hundred more parts on........:D
Clip-ons are temporary, so I can move the thing, and set up the wiring,etc:)

[Iceman]

It's nearly done Geoff, as you said just a few hunderd more parts.

[shift1313]

very nice. You think youll have any problems with turbo clerance? I dont think you will looking at it. Ive decided to turbo mine,should be interesting:)

[Benz]

Yeah Ice, I got a couple more parts on since this arvo, but heaps to go still.
Matt, the turbo clearance shouldn't be an issue,there is no change to the original headstock, and it fitted well enough from the factory..... there is actually more ground clearance with the back up high, and I've got another 20mm to add to the front, when the convertibars? go on, so shouldn't be a problem there.
Still got to sort a dashboard of some description,the original clocks are now mounted into the fairing, but there's no-where for the idiot lights.yet.
The chain is hitting the top front of the swingarm as it stands, so bigger cogs look like the solution there.
Are you going to replace the N/A with a turbo motor when you turbo? The standard turbo motor has a scavenger pump built in, along with decompressed pistons, different cams, different gearing, sped up clutch to handle more grunt, there's a lot of differences really....They are getting harder to find, but it seems there's always someone that has one parked up with a blown HT10B Hitachi bleeding on the deck. My parts bike has had a bypass pipe welded to the turbo manifold, must have run like a slug..

[shift1313]

i did away with my idot lights, and gauges all together. im making an lcd unit that will have tach/speedo plus the fuel gauge to go on the tank pod.

im using my standard motor. running low boost with my 8:1 compression. Im going to do it mr.turbo style and run a restrictor plate on the oil pump to up the pressure a bit. Im going to keep the turbo below the oil pan slightly and run the feed line going to the oil cooler through the turbo first. My gearing will stay the same and ill run heavier clutch springs until i have a problem. Im looking for about 110-120hp at the wheel for now. that should make it really fun on the street since its about 400lbs. If it becomes a problem i can source some 750turbo parts. Worst that can happen is i blow it up and have to find another motor, Ive got some mechanical flat slides for a gsxr1100 that im going to try and use with the setup. Dont know what to do about the cams yet, i hear that the NA 750 cams might actually be a slight boost in performance for the turbo since the turbo cams are a bit mild on the lift. Dont know that for sure. If i could find a turbo motor cheap enough i would go that route but i havent seen any for less then i can build it.

I do have a question about your gas tank. Where is your return fuel line at?

[Benz]

The fuel return is on the right side of the tank, It is actually a one way valve set into the bottom of the tank, so when you pull the line off, fuel doesn't go everywhere.
The return line will run from the fuel rail to my new boost referenced adjustable fuel pressure regulator, with guage, then back into the tank.
Any fuel injected GPZ tank should already have a return installed.
I have read you can shim the oil pressure relief valve spring for more oil pressure, I should really have done this mod myself, but instead had the pump rebuilt, the best of two combined....here's hopin!
You are right about the cams, slightly more lift on the N/A engine's pair.

[shift1313]

the problem is my tank is for my NA bike. not an turbo or 1100 tank(which is different size anyways). Im going to make a plate where the fuel cock goes that has a tube inside which goes to the top of the tank then put a one way valve on it for my return. I have a fuel pump from a polaris 700twin that im going to try to use with my carbs. Im in the process of finding info on the oiling setup. I have a schwitzer s1 turbo im going to use which seems popular for bikes, we shall see.

[Benz]

http://www.streetfighters.com.au/forum/upload/45176960181247.jpg

quote:Originally posted by shift1313

i did away with my idot lights, and gauges all together. im making an lcd unit that will have tach/speedo plus the fuel gauge to go on the tank pod.



What sort of circuitry are you using to control it? microchip? which particular one, and are you doing you're own programming?

[Benz]

http://www.streetfighters.com.au/forum/upload/45176960183969.jpg

Getting there, no use putting the turbo on until I fix the tear in the exhaust outlet. Today's job is set:D
Looks like a 17 tooth,530 10mm offset sprocket will align the chain. Anybody got one layin around?

[Benz]

http://www.streetfighters.com.au/forum/upload/45177744166026.jpg

Turbo's on :D
The local exhaust guy Andy from TPL is a miracle worker, the blue pipe is his handiwork,[same day service]turbo was rebuilt to HT12B specs so its now a GPZ 810 stage 2.
The original crossover exhaust is an exact fit to the new pipe, so I can have two small dump pipes either side of the front of the swinger, and that's it[:p]
Still got to connect the waste gate regulator, and clean the shit out of the tank, but it's getting closer to fire up.
After all the suspension changes, it sits on the sidestand perfectly!

[shift1313]

its looking good! did you have any problems with your rear sets fitting? I know the rear master has some clearance issues with wider swingarms. I ran mine shimmed out for awhile. I actually have a 9.5mm offset 530 sprocket but the 750turbo has different splines. If i remember correctly a tl1000 has the same splines as the turbo. I know mike at horse power unlimited offers one for $80usd but i dont know where hes located. The one i ran was homemade and 5/8" offset. Im surprised yours only took 10mm to get correct actually. I guess that swingarm isnt as wide as mine.

chalk, my gauges will be controlled by a microchip, i have a friend that is going to do the programming for me. I just need to figure a way to convert my mechanical speedo signal to digital or analog, the tach and the fuel gauge input will be simple. I have a triumph speedo that i dissasembled for my speedo converter. Ill be sure to post pics and info when its done.

I'm doing the same thing, I'm using a PIC16F84 chip at the moment, but plan on upgrading to a more advanced version shortly. With the speedo signal I have removed the mechanical drive and am using a hall effect sensor, with a magnet attached to the front wheel (the same as digital push bike speedo's). The sensor is a UGN3053, 3 wires and only 4.5mm square X 1.5mm thick. I can send you a copy of the circuit when I get round to drawing one up. You're programmer should be able to plug it straight into the microchip. Pin RB0 is an interrupt on the Microchips, which means you can respond to the input pulse the instant it occurs.

[Large]

quote:Originally posted by Benz

http://www.streetfighters.com.au/forum/upload/45177744166026.jpg

Turbo's on :D
The local exhaust guy Andy from TPL is a miracle worker, the blue pipe is his handiwork,[same day service]turbo was rebuilt to HT12B specs so its now a GPZ 810 stage 2.
The original crossover exhaust is an exact fit to the new pipe, so I can have two small dump pipes either side of the front of the swinger, and that's it[:p]
Still got to connect the waste gate regulator, and clean the shit out of the tank, but it's getting closer to fire up.
After all the suspension changes, it sits on the sidestand perfectly!


I like very much Benz

[Benz]

Matt, heaps of fun and games getting the original footrest mounts to work. I removed the old rubber pegs and used one of the holes to mount the suzi pegs in, the pegs sit an inch higher and an inch further back.Then cut away the front mounting point on the back of the alloy altogether, giving me clearance.
On the rear master cyl. side, days of fuckin around:(, but managed to mount the master cylinder up with the fuel filter, behind the sidecover, and made up a set of linkages to suit.There's about 2mm clearance to the swingarm, tight but it works.
Can anybody confirm a ZZR1100D has an offset countersprocket, and that it fits GPZs?
Large........:Dthanx

[shift1313]

Benz, the way i found my sprocket was to look in the parts book at my dealer and look for a 530 conversion. They offer a 530 conversion sprocket for the turbo, but they dont offer one for the NA gpz for some reason so that led me to believe that the spline shaft was different. I found that the kz900/1000 had the same spline as mine but a zero offset so i took that and chucked it up on a lathe, turned the outter portion off and made a spacer and welded it back together. If you look for a 530 conversion sprocket you will find one with stock offset, only a few mm i believe. Sunstar makes them, dont know if they are avail over there. Im not 100% sure the spline is different on my bike and yours because i just looked on 750turbo.com and it said kz900/1000 shares the same spline as your bike, and i know thats what i used on mine. If you need to there is a little bit of room where you can shim the sprocket out from the back side, and maybe take a bit off of your rear carrier to make them line up. I did this a little bit to get mine to work.

chalk. Since i already have the daytona speedo gutted and ive already got all the parts im going to do it this way. tack and fuel are straight forward it was just the speedo setup. I might change my mind in the end, either way i would like to see how you do it when you get it done. What are you doing about a diplay?

At the moment I'm using 7 segment LED's, but will be upgrading to a graphical LCD panel when I upgrade the chip, that way I can combine the speedo, fuel and temp (and maybe tacho, although I've been running without a tcaho for over a year and don't find it an issue) in the same display unit.

[shift1313]

the only reason i need a tach(or a shift light) is cause my bike doesnt have a rev limiter. I used to have a zx10 cdi but i sold it and have the stock unit in with no limiter. It keeps making power past redline and dont want to push it until the valves float:)

With a little more coding (very little actually) and some extra electronics you could add a rev limiter into the circuitry, if you wanted to be safe. I've got an engine immobiliser circuit which could easily be coverted to work as the limiter.

[shift1313]

as long as i know the rpm ill be okay. the few times ive pinned the tach i didnt have a problem but once you get past 7grand 10,300 comes very quick and it keeps pulling past 11,500, i could spend a small amount of money and get another zx10 ignitor also which comes with more advance on the ignition.

[RussVC]

Benz,
Early ZZR1100 had a big offset sprocket which is the same spline as Z1000J and GPZ1100 but different to the 750's and turbo model.

GPZ turbo http://www.jtsprockets.com/52.0.html?&L=0&sel_uid=4384&p=

ZZR1100 http://www.jtsprockets.com/52.0.html?&L=0&sel_uid=1159&p=

[ozkat]

Hey Geoff, that looks bloody great mate, keep posting the pics.

[ozkat]

quote:Originally posted by shift1313

as long as i know the rpm ill be okay. the few times ive pinned the tach i didnt have a problem but once you get past 7grand 10,300 comes very quick and it keeps pulling past 11,500, i could spend a small amount of money and get another zx10 ignitor also which comes with more advance on the ignition.
These will solve your rev limiter problems, fully adjustable between 6-12000rpm, get in touch with Shayne (abusa) he sells them.

http://www.streetfighters.com.au/forum/upload/25413182067980.jpg


or this

http://www.streetfighters.com.au/forum/upload/25413182017414.gif

[Benz]

Russ, great link mate, I've sent them an email to find out if they can supply both drive and driven sprockets.
Shayne, thanks mate, will do..

[shift1313]

well the zx10 ignitor cost me $10-15 usd, im sure those are a bit more:)

[Benz]

http://www.streetfighters.com.au/forum/upload/18166587987976.jpg

Still a bit to go, but the beast is nearly there:D

[Benz]

http://www.streetfighters.com.au/forum/upload/181665879113127.jpg

:)

Looking good Benz

[Benz]

Still yet to sort the 'bars,and find all the screws to correctly mount the plastics,get the chain aligned,and set the idiot lights in place, but I'm fairly happy with what's on the deck now. It feels completely different with the front dropped and the back raised up so far. The engine fired up beautifully, no real hassles, ahh the whistle of a turbo....nothin like it

[devo]

Awww fuck Benz that looks fucken awsome brother.

[Benz]

Cheers Devo, that front end you sent me has definately found
a home :D
That 11 of yours is coming along nicely too bro, I like the thinking with the oil cooler, guess you really don't need lights!

Chalkmeister, goodonya;)!

Is that a standard paint scheme? I realize the red color isn't, but it looks just so fuggen right

[Benz]

Chalky, I used the standard GPZ turbo lines,gold pinstriped. The black, and red are Glasurit COB colours, with a little deep gold tinter in the clear. When the Sun, or in this case a camera flash hits it, the gold tints the colour depending on the angle you see it from.
The paint job is at least five years old, and there's a few scratches to be attended to, but overall it'll do!
Wheels , surge tank,rear grabrails, and footpeg mounts are Protec two pac ClearOverBase, charcoal metallic, edge of the rims silverfrost metallic, meant to look like aluminium, without the friggen polishing..... something like ZX9 rims.
Glad you like it

[shift1313]

yeah i really like that red compared to the firecracker red on the stock bike. That has a deep candy look to it.

Great work there benz!! You wont believe the difference after the first ride. The orig. is fun but now you dont have to slide the rear around:)

[Gix11]

Looks bloody great Benz. Love the lines of the tank and side panels on those GPZs. The back end looks so right with that Gixer wheel.

[Benz]

Thanx Si, I think the Gixxer front guard is a bonus too, the GPZ one was butt ugly in comparison. Makes the USD front end tuck in under the fairing a heap tidier, and will give me a little more clearance to the oil cooler and turbo area, under brakes/compression.
Cheers Matt, glad you like it.

[exile]

Thats looks the nuts m8, the running gear gives it a bit more stance and attitude [8D]

[Gix11]

I just had another look at your photo Benz and I reckon if you lost the mirrors for something like bar end ones and put a black screen on it and a piece of black (or at least really dark tint) perspex on the front light to make it black, that thing would look even more stealth.

[Benz]

Well spotted Si, I am going to loose the mirrors, they suck big time, and you can't see past your elbows with them anyway! Bar end mirrors may be the go, but I think there's a set from the later ZR7[US model?] that fit up directly, and are a lot smaller, and have a more oval shape. I'm not too crazy about anything that makes the bike wider, as it's already a fat bastard, and bar end mirrors might interfere with the fairing at full lock.
The screen IS tinted, true it's a fairly light tint.
Didn't think about the headlight tint idea, I might mess with the photo, and see how that changes things.Thanx for the suggestion.
Cheers exile, having the rear up high, and a USD front end, has really modernised the ol girl!

[shift1313]

had i had zx6d model mirrors, US, when i had my fairing on. They fit great(with a little mod) and were super steady.
http://filebox.vt.edu/users/maperez/GPz/gpzupper.jpg

they arent smaller but they are definately smoother

[Benz]

Thanks alfiestorm/Stu :D
My sprockets arrived today, and they are already on the bike[:p]
The alignment is spot on, although I may have to drop the tail a little to get the chain to clear the top of the swingarm, at the pivot point.
It will only be a 10mm or so drop, which will give me a little more trail up front, which probably won't hurt too much, and will also prevent the chain from hitting the lower frame.
Glad I went to the trouble of making adjustable dogbones now[^]
Mate, thanks for going through that bollocks for me:)
Just waiting on the ebay dude I bought my Ducati clipon risers from to deliver, and a first ride is just around the corner......[8D]

[alfiestorm]

Great they turned up and yeah it was a bit of a game but your bike is sorted now then :)

[shift1313]

youll be fine if it touches a bit on top. it shouldnt when you sit on it, or accelerate. The lower frame is another problem though. i made a roller so the slack doesnt slap it.

[Benz]

http://www.streetfighters.com.au/forum/upload/74094879787326.jpg

Getting closer:D

[Benz]

http://www.streetfighters.com.au/forum/upload/74094879779199.jpg

Nice straight alignment, with no pissin around, no shaving/reducing the cush drive face, no washers/spacers behind the countersprocket.......although I did have to take the rear of the countersprocket/old airfilterbox cover off, because it is justtouching, better safe than sorry
Simple:D

[Jockney Rebel]

nice mr BENZ

[Benz]

Thanks Jim:)

[shift1313]

nice job benz!!! its amazing that with all the spacing i did to make my 180 fit my chain isnt as close to the frame as yours is. Must be a different offset motor or something. I was talking to one guy that said he fit a wider tire with a flat sprocket. go figure.

[Benz]

Went to the rego branch today.....went straight across the pits, no questions asked, the inspector said" Looks good to me", so I paid my 368 ozzies for six months , they gave me a new plate, and we're cookin:D
The bike handles soo much better, the brakes are fantastic, one finger is all it takes to pull up hard, and the motor is sweet, pulling over 20 psi[way too much, will have to regulate that back to 15psi or so], well before redline.[:p]
I'm one very happy camper, there's still a few items to clean up, but it's back on the road again[8D]

[gibbo]

Well done mate, another old skooler back on the road[8D]

[shift1313]

its a totally different bike right. feels like its stuck to the road:) glad to hear its back on the streets.

[Benz]

Yeah Matt, the front is really planted, I've already gone into a corner way too hot,[or so I thought, felt the 'pucker'] and it simply stayed on line ,didn't bother it at all.
Think my riding skills will be improved,the suspension simply kills the old setup.
The oldschool Geep is still a weapon, and it's got to go on the dyno for a tuning session yet!!

[Iceman]

Well done Geoff.

[evad]

Hey Benz, you will have to aim at Lorcan's hp and top end:D:D
Bike looks great mate, well done

[Benz]

I think I'll just go with the grunt its got now for a while.....15 psi makes it plenty fun.
You're right though, a bigger turbo, and a new injection system is almost inevitable.
First, on with the dyna coils....