Forced Induction Custom FI Setup Questions

I don't even know where to start

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Old 07-11-2006, 05:08 AM
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Default I don't even know where to start

OK FUN STORY ABOUT TURBOING....any help here guys?

Alright I got a friend of mine that just turbo'd his 95 cx

Parts list....

D15 motor
D16 DOHC head with intake, throttle body, distributor, wires.....blah blah blah everything to get it to work.
Regular mini-ram manifold
SSAutoPOS Wastegate (but I know that these are actually ok...)
SSAutoPOS Type "s" BOV
Started with a ssautochrome .60/.63...with bad seals that puked oil...gave him one of my good turbos (.60/.48 turbo is good anyways)
Some other random ---- that i believe I'm missing but I'll go along with the story.

Ok he brought it to a "critically acclaimed" shop to put it on...turns out to be some guys that never even made a turbo car. One has a supercharged d16 if that says anything...

The put everything on and it was puking oil...too small of a return line to begin with so they kept running it...killing it to see if it was "oil that was left on the engine" when it was clearly coming out of the downpipe. Eventually the cooked the ------- turbo and now his $300 .60/.63 barely even spins I took it out and took out the center and it's fucked....so I gave him one of my extras.

Fixed that (while worknig at someone elses shop)...fixed the drain line and bung, and replaced the turbo and hooked up the lines....no more oil...no it's just puking out white smoke (gas) and it turns out the p28 that they were putting roms on was fucked and wouldn't rev passed 3 grand...so they put the stock ECU in and added a FMU...not as much smoke...but you can still smell the gas.

So I leave...the kid couldn't put back on the ghetto *** downpipe he migged together because the turbo I gave had three broken bolts in the exhaust housing and he couldn't get them out....SO he actually took off the .48 exhaust housing and put on the .63 housing with the stock .48 internals...Now, I have never heard of this but it sure doesn't sound right at all...

After the car finally "warms up" it hunts the idle no matter what probably jumps up and down at probably 1000rpms and does not stop..

So when you block off the vacuum on top of the valvecover the idle actually goes to normal...hooked that up to the turbos compressor housing.

Also feels like there is cold air coming out of the bottom of the car on the passenger side which leads me to think there is a charge pipe leak of some sort....

The car is fucked and actually runs slower than what it did as a stock d15 (REALLY ------- SAD)

So...any of you guys got any ideas for me to check out tomorrow? I'm searching for leaks as I didn't feel like it at 4am after I got off work..I'll take some pictures of the engine bay if thats possible...I just need some help guys..I'm really pissed off that this guy he paid to do the work when I believe I could have did better.
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Old 07-11-2006, 07:14 AM
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Default Re: I don't even know where to start

What size injectors are in the car? Since they installed a FMU, I hope they used the stock injectors.
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Old 07-11-2006, 09:19 AM
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Default Re: I don't even know where to start

Tell the kid there is no hope left for his car, direct him to this website and cross your fingers for him.
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Old 07-11-2006, 09:21 AM
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Default Re: I don't even know where to start

If you knew better why didn't you help him, he must be a friend if you're giving him turbos and ----.

Or is it really YOU asking the questions for yourself? Hmmmmmmmmmm
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Old 07-11-2006, 11:12 AM
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Default Re: I don't even know where to start

The D-series DOHC heads are notorious for crank walk and pushing out cold air underneath the passenger seat area.
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Old 07-11-2006, 11:46 AM
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Default Re: I don't even know where to start

Originally Posted by Naked Raygun
D15 motor
D16 DOHC head with intake, throttle body, distributor, wires.....blah blah blah everything to get it to work.

So when you block off the vacuum on top of the valvecover the idle actually goes to normal...hooked that up to the turbos compressor housing.
so you did a SOHC to DOHC swap?

remove that line from the valve cover to the compressor housing.
run it to a catch can and then to the intake side of the turbo.
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Old 07-11-2006, 01:19 PM
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Default Re: I don't even know where to start

Originally Posted by whiterice
so you did a SOHC to DOHC swap?

remove that line from the valve cover to the compressor housing.
run it to a catch can and then to the intake side of the turbo.
He used stock injectors and was trying to chip a fried out p28....then went back to the stock "11F0" coputer and popped the FMU on there.

Haha, no I didn't do the work...and the reason he brought it there is because he is going to the tire rack autocross event on the 15th...and I work at a steel mill 3pm-11pm and pull 16 hour shifts all the time.

I went to the guys shop after I got off work and witnessed most of this. I'll check the IC piping today.

Would the .63 exhaust housing be bad for a .48 turbine?
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Old 07-11-2006, 01:52 PM
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Default Re: I don't even know where to start

Sorry...miscommunication...its a d16zc VTEC head...should I still reccomend the catch can?
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Old 07-11-2006, 11:51 PM
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go banana!
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Old 07-12-2006, 12:02 AM
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Default Re: I don't even know where to start

.63 and .48 a/r housings IF both stage one (which I think all factory turbo cars were) they use a similar if not the same turbine wheel, I believe the .63-.48 housng swap is pretty common

If you want to prevent blow-by I'd run a catch can

Sounds like the shop should be buying you a new turbo...
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