h1c wheel sizes

[redneckaggie]

http://www.oilburners.net/forums/attachment.php?attachmentid=24840&d=1241912940

this is the only pic i have of it on hand. it is at the house and i am in stephenville. When i get back home i can check it out and let you know everything i can figure out about it.


ON EDIT I JUST FOUND THE OLD POST FROM WHERE I BOUGHT THE WASTEGATE AND IT IS A 50 MM GATE DESIGNED TO OPEN AT 12 PSI. IT IS HELD CLOSED BY A SPRING SO I WOULD THINK THAT IT WOULD GRAUDUALLY VENT EXHAUST GASSES UNTIL FULLY OPEN AT 12PSI.

 

[kas83]

50mm would probably be a decent compramise. One that starts to open and gradually bleed drive pressure will sustain boost better in an application like this IMO. You don't want full boost at anything under 2000 rpm, but you want it to level off just above that and hold throughout the powerband. One that just opens will cut the drive pressure quickly and drastically, and might hinder performance on our lower revving motors compared to a gasser. I don't know if that style gate even exists, but you never know. Plus there is always the possibility of blowing the gate open with drive pressure itself, but I don't think that would be a problem in your situation.

 

[redneckaggie]

Ok im really hoping to get this thing on soon. It will be real soon if i get the job working with my bro because i can just ride to work with him and leave the truck down. Really if i think about it all i have to do is get the body lift on. Then weld the flanges onto the manifold and then it is just a bolt up job. I dont happen to have a spare cummins downpipe and v clamp laying around though. Where could i get these?

 

[kas83]

You can buy the outlet and V-clamp from High Tech Turbo. But you'll have to custom fab a downpipe, as even the stock downpipe won't work for a turbo mounted on top of the engine.

http://www.htturbo.com/thnew.htm At the bottom of the page.

Just some FYI, the 94-97 PSD uses the same 3 inch V-band, so you can take the flange off a stock down pipe, or use an aftermarket down-pipe, and mod that. Only problem is the PSD pipe flange isn't as think as the Cummins ones were, as the flange on the turbine housing is slightly thicker.

 

[redneckaggie]

My turbo will mount of to the side of the engine on the drivers side. I am now wondering about the clutch master cylinder. The plastic line will be so close to the downpipe i am afraid it will mess the line up and maybe the components. Will wrapping the downpipe make enough difference to keep this safe.

 

[kas83]

That is a tight squeeze indeed. FWIW, I've read of guys putting turbo blankets on, and wrapping the downpipe, and being able to put their bare hand on them after a hard run. Also, the claims of reduced underhood temps seem to be holding true in the realworld applications. I know the downpipe on my truck was wrapped by the previous owner, but I'm not sure how much did, as have never really messed with it to see.

What will your up-pipe orientation be like?

 

[redneckaggie]

Maybe it will help more if i provide some pics of the setup I have a wierd kit that came with a rajay turbo. I have been told that it is almost identical to a log manifold setup. The drivers manifold gets romoved and a new one replaces it that has a turbo flange welded to it. Then there is a cross pipe from the passenger manifold that dumps back into the drivers manifold. All of this runs up a tube into the turbo. I plan on putting the wasegate in the flat section of the manifold. oil lines will run from the sender to the turbo then be pumped by an electric pump back to the timing gear cover. Im not sure of exactly how big of an electric pump i will need, any pointers?????

Manifold

http://www.oilburners.net/forums/attachment.php?attachmentid=22117&d=1223916345

http://www.oilburners.net/forums/attachment.php?attachmentid=22117&d=1223916345

http://www.oilburners.net/forums/attachment.php?attachmentid=22120&d=1223916345

Intake hat

http://www.oilburners.net/forums/attachment.php?attachmentid=22121&d=1223916345

Cross pipe

http://www.oilburners.net/forums/attachment.php?attachmentid=22124&d=1223916345

 

[kas83]

Wouldn't the exhaust from the right side manifold bottleneck with the pulses coming out of the drivers side manifold? Just doesn't seem very effective for good flow to me, but I could be wrong.

 

[redneckaggie]

Not really to sure but the rajay turbo supposedly worked well but i burnt it up right after it went on the truck. The guy that sold it to me claimed that max boost was a little less than 10 but it was almost instantaneous to spool. Even with it being almost locked up i got up to 6 psi and the truck seemed to pull hard, matter of fact when it hit 6 psi the second time i saw smoke coming out of the hood and baybied it home and found the turbo not turning at all.