If it gives trouble you could keep reducing the restrictor size, If your your oil pressureis 50 psi or better 1mm should be safe
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If it gives trouble you could keep reducing the restrictor size, If your your oil pressureis 50 psi or better 1mm should be safe
Check valve after the pump on the oil return? Or is there a check in the pump?
Keep an eye on water temp aswell. Never seen anyone actually use the water cooling on a turbo bike
I tried water cooling several yrs ago, all good most of the time... but... if you pushing hard then slow down, like into town, and low engine rpm don't circulate the water fast enough you will get localised boiling at the turbo, pushing water out of your radiator , potentially then causing overheating issues..
Will it run OK with out it water hooked up, just figured it was avalible why not use it but if it is going to cause issue then I can go without
After stuffing around with Pav in the shed today making up a heat shield and bits and pieces took it for a little ride in the rain [:o)] .Boost came on at about 5-6000 RPM :D[:p]:D needs fueling sorted bad ( gotta figure that out[B)] gotta get smarter in a hurry ) and I now have oil in my everywhere so will need to look at that either turbo seals or return pump not pumping enough or both or all fucked if I know [B)]:([?] will be next weeks problem for now
Jeez you don't fuck around do ya mate good stuff
Trying not to fuck around any morewantneed it back on the road
The bike would rev free until the boost started to climb then started to miss/starve for fuel and would not rev over 6000 rpmish.
Just doing some of my best thinking and figured I may need to move the the boost ref line for the fuel regulator currently its on the manifold under the carby. Thinking it may do better on the 'T' into the float bowl ref line . Anyone havean opinionany helpful advice on the matter
Gunna rebuild the turbo next week but will run some tests on the return pump and the flow rate required over the next couple of days
vids!!!
it was a nice smoke show after running for a while
You need your boost reference for bowl and reg from the same point, preferrably in the up pipe pointing toward the incoming air , so the pressure in the bowl and fuel pressure are always a few % above manifold pressure , then your 95 main jet will act as a 100 jet on moderate boost and 105 on high boost which is exactly what you need for matching the jetting with air density and flow , a well setup system can actually need a slightly smaller main jet to run perfect
all this only works if the system is well sealed, you may have to pressure test your inlet system
Easily done by capping the turbo inlet and putting an fitting to add regulated air at about 10 psi
you can then test your fuel pressure rise , (it will only match the pressure without dynamic airflow) and test for leaks
ignor the air passing through the turbo drain
Sweet thats what I was thinking. Had it in the wrong placeQuote:
quote:Originally posted by Booster
You need your boost reference for bowl and reg from the same point, preferrably in the up pipe pointing toward the incoming air , so the pressure in the bowl and fuel pressure are always a few % above manifold pressure , then your 95 main jet will act as a 100 jet on moderate boost and 105 on high boost which is exactly what you need for matching the jetting with air density and flow , a well setup system can actually need a slightly smaller main jet to run perfect
all this only works if the system is well sealed, you may have to pressure test your inlet system
Easily done by capping the turbo inlet and putting an fitting to add regulated air at about 10 psi
you can then test your fuel pressure rise , (it will only match the pressure without dynamic airflow) and test for leaks
ignor the air passing through the turbo drain
http://pic70.picturetrail.com/VOL183.../397077541.jpg
Will move it to the small pipe across the throat that goes to the float bowls hope that will solve one issue.
Gunna start putting together another plenum shortly slightly different shape with a new base plate to help it seal. Or maybe just a new base plate will see as it goes on
what size hole in the small pipe, that system should work ok, maybe just need larger hole or moved further from plenum
7mm ID pipe cut out like VVVV
http://pic70.picturetrail.com/VOL183.../397261650.jpg
Will move the ref hose for the reg to this pipe friday night.
Gunna clean up the oil see if i can turn the centre to get the drain more vertical ( think it maybe part of the problem?) make up a new drain pipe and fittings and see what happens Saturday :D:D:D:D:D:D:D:D:D[8D]
i run the same scavange pump on mine and works fine. 3 yrs so far. i had the oil everywhere issue aswell. i put a restrictor in the oil feed line and it solved all my probs. basically the zx7 has heaps of oil pressure and i was over oiling the turbo. it would pass the seals then go everywhere.
also i noticed your turbo is below your sump level. you'll probably have to put a one-way valve in your oil feed line otherwise it will flood the turbo with oil when your parked. i had all the same probs when i first turbo'd my zxr.
What size did you go down to I am at 1mm now at the fitting going into the turbo I was thinking of trying a .6 or .8 mm but think it maybe to small
Going to have the oil feed line above the oil line when I rotate the houseing to stop gravity feed wehn not running,its OK now when on the side stand just on the race stand it seems to be a issue
I have 3 pitot pipes in the up pipe, 1 goes to the fuel reg and the other 2 go to the carby's. Each feeds 2 carby's.
I've also got the pitot's mounted at 45° facing into the air and slash cut at 45°.
I tried a pitot just like what you have and it didn't work for me. With the setup like yours it wouldn't rev and leaned out as the boost come on.
Not to say it won't work it just didn't for me, plenty of people on OSS have done it this way and it worked.
I think you should rotate the bearing housing of the turbo so the oil goes striaght in the top and drains out the very bottom. If the drain is not at the bottom there will always be oil inside and in can get past the seals.
I'll have to have a look and get back to you. can't remember.Quote:
quote:Originally posted by yella
What size did you go down to I am at 1mm now at the fitting going into the turbo I was thinking of trying a .6 or .8 mm but think it maybe to small
Been fucking busy with work gotta hate stocktakes. Finally got an hour to look over the bike pulled the turbo off. Checked it over and found a big fuck off chunk of carbon blocking the oil return fitting must have been sitting in the housing and come on with the additional heat/oil. Sweet at least I found a fault go to love a result. Gunna spin the turbo a little and change the place the oil feed comes from etc and will have it out for another test Saturday.