ZRX1000R pretty much finished now

[Dynomutt]

Well here's mine

ZRX400 Japanese home market frame converted to use engine as stressed member and monoshocked, Mikuni rearsets

05' Z750 bottom end, fitted with
06' Z1000 top end
ZX9R clutch
ZX9R C model camshafts
ZX9R magnesium covers with titanium M6 engine cover bolts
Ported head
Base gasket removed to raise the C/R
Modified GSXR1100M inlet rubbers
Mikuni TMR40 roller flatslides
Dyna2000 ignition and Dyna coils & Taylor leads
Akrapovic headers, Yoshimura linkpipe and TriOval can

144bhp 70lb/ft 170 kgs wet 168mph top speed

Ohlins R&T forks, Harris adjustable offset yokes, Brembo HPK radial calipers, Brembo HPK 320mm discs with titanium disc bolts, Brembo 19/18 forged radial mastercylinder, Yoshimura speedflow brakelines with titanium banjos, Renthal superbikie high bars, Marchesini forged ally T spoke wheel, Metzeler Racetec tyre

JMC deepbraced swingarm converted to cantilever monoshock, Marchesini forged ally T spoke wheel, GSXR slingy 240mm disc, Kawasaki ZX10R caliper, titanium disc bolts, Ohlins 46PRXCLS shock with hi/lo speed comp damping and hydraulic preload platform. Yoshimura speedflow brakeline with titanium banjos

All stock bodywork apart from buell XB12R mudguard, all painted in Eddie Lawson replica paintwork.


Over winter a knife edged balanced and polished crank and rods will be fitted along with a set of custom JE higher compression pistons, and a set of ZX9R F model camshafts, which should see power increase to around 160bhp.

[Gitzy]

Thats Awesome Mr Mutt.. love your work.

[ozzy1100]

Now that I like

[RevHead]

neat n tidy ,good job

[Tony Nitrous]

Bloody excellent.
That's what it's all about.
Great job.

[nick76]

I like that!

[wackyrider]

Nice one

[robmac]

Thats tough mate. Looking good.

[Surt]

me likes it mr Butt i'd luv to see more pics esp the ones of the nacked frame and missus

[nemo]

Nice work mustapha
headlight looks a little big for it though.. and the front fender looks outa place a little
but fer a litre bike engine stuffed ina 400 frame, A fookin plus!!
Bet itsa hoot ta ride!

[kev@vcm]

My hat comes off to you mr as that's a cracker of a bike but I need to see more photos more angles well done

[Dynomutt]

The front guard is sitting about 30mm higher than it will do when the new bracketry arrives, the headlamp and nose fairing are the standard items. The headlamp is in fact the same unit used on the old GT550 and GPz550 and Z400J. I'll dig out some more pictures of the bike over the weekend. Everett is coming down to do the Streetfighters mag photoshoot as soon as I have the 7/11 slabby that I'm currently building.
Everything on the bike that looks like polishing is in fact powdercoating, it was done by a company called Aerocoat in Gt Yarmouth, and is their Aeromax finish. They also do a black chrome version which is what I've used on the 7/11, both finishes are really good, and the Aeromax looks stunning in the sunlight.
I got so pissed off constantly cleaning the polished ally on the 650cc version that I decided to have everything done on this one, partly because the magnesium ZX9R covers wouldn't stay polished very long, and now it just needs a spray over with truckwash and the a good going over with the jetwash. Less time cleaning equals more time riding!!

[Issues]

I want 1. I would keep in injected though.

[Dynomutt]

The original throttle bodies are more restrictive than the TMR40 flatslides, they're only 38mm for starters and then the butterfly shaft forms a retsriction even when fully open, if you want the performance from these motors then you need to get them breathing well.

[Tony Nitrous]

Is this the same bike as the earlier "650 version" or is it a fresh build ?
I think I remember the other one, feature had your dog in it ?

A "400" import with Busa horsepower, thats NASTY!

Looking forward to more pic's.

[Dynomutt]

This one is a fresh build, although the bodywork was robbed from the 650cc version and redone. The 650 is currently sat in the workshop awaiting its rejuvenation. I plan on grafting early Z1000 bodywork onto it, I already have a Z1000A tank for it, and round headlamp, I need to pick up a pair of panels and a tailpiece then get the seat altered to meet it. I have got the 1000K4 wheels still in it, but I've been looking at using some ducati GT1000 sport wheels, as the spokes would look great, but they're not easy to find at sensible prices.
The 650 did over 30,000 miles with the only issue was when a coolant pipe broke and burnt the head gasket and a piston. I ended up getting 95bhp and 52lb/ft from the 650cc version, which was a 10mm overbore and 8mm stroked version of the 400 motor. The biggest issue was the valve size being rather small, even fitting larger valves was not going to gain a huge amount as I couldn't get the exhaust valves larger than 20.5mm diameter, so it made more sense to lob a thou' motor in there instead.
I've currently had just over 160mph from it so far, which is 300rpm short of the redline in top gear, it was remarkably composed at that speed as well, and felt better than the 650 version at high speed.

[Issues]

Sorry, I understand about the butterfly shafts being a restriction but my ZX10 throttle bodies are 43mm. I was under the assuption that it would be easier to tune with the fuel injection and give a better result for ride ability then the carbs. Sorry once again I'm basing this on my experience with 41mm FCR's on a ZZR1200 engine.

All I need for my fuel injection for my ZRX now is the EMS basically, although its a 1224 ZRX lump I would assume a 200hp+ figue would be achievable as it has 184rw now on the rejetted stock 38 CV's.

I would love to built a ZRX400, was trying to get 1 for the girl but couldn't find 1 here.

This has me thinking about using the K3 motor in the XN85 with a hair dryer instead of the GSX750. Do you have any cooling issues at all?

[EVLZX]

Sorry to hijack the thread.
Issues on your zx10 does it have dual butterflys?
How much did your 1224 cost?
Did you have the 1224 done in Aus?
What is your EFI from?
Are you running stock cams?
Also stock zrx carbs are 36mm, and zzr11/12 are 40's.

[Issues]

EVLZX, I knew the ZZR's had 40's, but they're semi down drought or I would have fitted the 41mm FCR's the the ZRX when I first got it. I bought the bike with the engine built. It was built in the USA from what I was told, possably assembled here. It has Muzzy cams, ported head, APE 1224 liners and JE pistons, full Muzzy exhaust. It was a show winner for 3 years at the story bridge bike show before I bought it about 2 years ago. Must have 36mm carbs then?

ZX10 throttle bodies do have 2 butterflys, 2005 model I think. I bought trigger wheels and a hall effect sensor adaptor for the cam cover and cam trigger indicator from a guy in the states along with ZX10 stick coils with flying leads and a coil driver from a turbo audi to run sequention ignition, I will be running a walbro pump and Haltech 500 sprint EMS. While I pull the intake cam out to machine it for the trigger I will probably fit my ZZR1200 crank (lighter then ZRX), clutch (more plates then ZRX) and the 6 speed box. If the Haltech runs right I will get another for the XN85.

The XN85 will look similar to this ZRX400 but I will be running a Bimota tail, GSXR1000 susspension and either turbo intercooled GSX750 or GSXR1000, but I'm leaning more towards the GSX because its aircooled. Going for a retro "Eddie" look like this ZRX400 but with turbo and possably single seat and I hope alot more power, but it's heavier.

[Issues]

Sorry I miss read the bike specs above, it has Z1000 head, not ZX10. Z1000 has 36mm throttle bodies from memory hence why I got the ZX10's.

[EVLZX]

Is the spacing on the zx10 tb's correct?
I'd like a 1224 but the $$.
As far as I know the zzr box has the same 1st and 6th (5th zrx) gear ratios.
In regards to the efi had you looked at the busa setup?

[Dynomutt]

THe fuel injection system from the Z1000 is very easy to graft onto other Kawasakis, it shares pretty much all the sensors with other Kwaks of similar age. The cam sensor is the same as ZX9R F model, the crank sensor is also the same as the ZX9R, the temp sensors are the same as ZX9R, most of them are the same as other Kawasakis, the speedo pick up is identical to the Suzuki item. Personally I prefer running flatslides to FI, but that's just me, and the Mikuni TMR are pretty much the best you can get, I think they're much more user friendly than the FCR, and the adjustability of the accellerator pump makes them very easy to set up for road use.

[Issues]

EVLZX, ZZR1200 crank is lighter so it will let the engine rev quicker, the ZZR clutch is bigger but will not fit the ZRX12 crank, the ZRX gearbox input shaft is different to the ZZR12 so to use the bigger clutch I need to change the crank and gearbox. So I get a bigger clutch, lighter crank and 6 speed in 1 hit. The 1200 engines have a different spacing to the 1100's so they can't be mixed and matched. The ZX10R TB's are almos an identicle match to the ZZR12/ZRX12 spacing, much closer then the GSXR/Hayabusa TB's that need re-racking. The current ZRX's have a Z1000 engine fitted but are not available in Aust. I got the crank trigger wheels and cam position sensor adaptor from the guy that did the busa EFI conversion. I want to keep my ZRX looking old school with its stock gauges so can't use the Busa set up anyway because you need the Busa gauges to run the EMS.

Dynomutt, this is all very good info. I have spoken to a bloke running the same set up engine as mine with 41 FCR's fitted, makes 196whp but he said its a go switch, not an accelerator anymore. I'm hoping with EFI I don't loose the nice low rpm control I have with the CV's. I can ride it as a commuter under 5000rpm but after that it gets pretty hectic. The other problem I have is fuel quality, running 12:1 comp it seems to be prone to detonation if the premium fuel is not quite good enough. I was even considering buying BP100 to try out. Seems like the octane changes from week to week even buying fuel at the same servo's.

[Tony Nitrous]

Well here's mine
All stock bodywork apart, all painted in Eddie Lawson replica paintwork.


I dont remember ELR's having that tank badge.
Very funny. Nice touch.

:cool:

http://imageshack.us/a/img109/1387/kamakasi.jpg

[Dynomutt]

Thanks Tony, it's very subtle, but quite appropriate given how much fun the bike is to ride!!
As for the flatslides, I'm not a fan of the Keihin FCR, I much prefer the mikuni TMR series and consider them a far superior carb. They are much better to ride low down than FCR, yet give a real kick in the arse when you whack it open. It is possible to set the accelerator pumps to come in exactly when you want them to, and drop out when you want them to, which a allows you to fine tune the snap throttle response. I've ridden with TMR Mikunis for the last 6 years, I used them when I was commuting in the city with no issues at all. I always run ANY flatslide with velocity stacks rather than pod filters, and use either Ramair or Pipercross dual foam socks stretched over the stacks, I've had no issues with either low speed running or flatout wide open throttle, although having my own dyno lets me get them set up beautifully.
I did consider retaining the injection system, and looking for larger throttle bodies, but i like the oldskool look of the flatslides, and I like the performance.

[Dynomutt]

EVLZX, ZZR1200 crank is lighter so it will let the engine rev quicker, the ZZR clutch is bigger but will not fit the ZRX12 crank, the ZRX gearbox input shaft is different to the ZZR12 so to use the bigger clutch I need to change the crank and gearbox. So I get a bigger clutch, lighter crank and 6 speed in 1 hit. The 1200 engines have a different spacing to the 1100's so they can't be mixed and matched. The ZX10R TB's are almos an identicle match to the ZZR12/ZRX12 spacing, much closer then the GSXR/Hayabusa TB's that need re-racking. The current ZRX's have a Z1000 engine fitted but are not available in Aust. I got the crank trigger wheels and cam position sensor adaptor from the guy that did the busa EFI conversion. I want to keep my ZRX looking old school with its stock gauges so can't use the Busa set up anyway because you need the Busa gauges to run the EMS.

Dynomutt, this is all very good info. I have spoken to a bloke running the same set up engine as mine with 41 FCR's fitted, makes 196whp but he said its a go switch, not an accelerator anymore. I'm hoping with EFI I don't loose the nice low rpm control I have with the CV's. I can ride it as a commuter under 5000rpm but after that it gets pretty hectic. The other problem I have is fuel quality, running 12:1 comp it seems to be prone to detonation if the premium fuel is not quite good enough. I was even considering buying BP100 to try out. Seems like the octane changes from week to week even buying fuel at the same servo's.

When I initially built the 650 version, I suffered with detonation under load in the higher gears, I pulled a couple of degrees out of the ignition timing by slotting the mounting for the pick up, which didn't really help the situation much. What did make the difference was fitting the CR9EKPA plugs from the ZX12R, the nose of the plug is very slightly protruded compared to the CR9E plugs. This placed the spark almost 1mm further into the combustion chamber, which cured the detonation issue and allowed me to run the advance that I wanted to run. Even with the higher compression Wiseco pistons I had no issues with detonation although I was running 95RON standard unleaded. On the new Z1000 based motor, I have used stock pistons for the moment with the base gasket removed to lift the C/R slightly, again running on 95RON fuel with 38degrees ignition I don't have any detonation issues. I will try some more advance when I get the ZX9R F model cams that I'm looking for.
Over the winter I will be having a custom set of JE pistons made which will be a higher C/R but still on a stock 77mm (953cc) along with the knife edged polished and balanced crank and rods, and the lighter flywheel from the ZX9R. I don't see the point in the expense of reboring/replating to gain 20cc with the 78mm (973cc) kit, and I don't want to use the Muzzy 79mm (998cc) kit, so I'm going to stick with the stock bore size. I reckon with this set up I should see somewhere around 160bhp from it, which in a package that weighs only 170kgs wet, will be plenty. Anyway I'm having some new intake stubs made for the carbs to allow me to fit the nitrous fogger plates without moving the carbs from their current position as it is pretty tight under the tank, then i'll fit the gas kit I have sat under the bench.

[Issues]

I have CR9EK plugs and it mainly seems to depend on fuel on the day, some tanks it runs great other tanks detonates. I will try the plugs you mentioned and see how it goes. I agree with the light weight power ratio, sounds awsome. I still want 1.