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Old 05-11-2000, 06:35 AM   #1
HRE | giulio
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Member#: 481
Join Date: Nov 1999
Location: NY USA
Question Q for those that made their own turbo kit

I can get a used legacy turbo for $250... does that sound good?

What else is needed to put a 5-7 psi turbo on a RS? I already have a SAFC.
Do the headers have to be changed?
About how much $ would all this be?

Thanks,
g
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Old 05-11-2000, 07:25 AM   #2
kid22
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2000 2.5 RS-T
22WannaB

Post

you might want the following as well:
intercooler
oil cooler
BOV
bigger diameter piping
air filter
might need some tubing and clamps
and u don't have to, but u can get borla headers as well.

i bought a t25 and i'm doing the homemade thing too, lemme know how it goes!!
-matt
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Old 05-11-2000, 10:12 AM   #3
HRE | giulio
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well i didnt buy the turbo unit yet. just got a price on it. i want to know what labor/cost is involved if i decide to do it.

what does the BOV do/ why have one?

[This message has been edited by giulio (edited May 11, 2000).]
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Old 05-11-2000, 10:20 AM   #4
BrianR
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Arrow

The BOV (Blow Off Valve) does exactly what is stands for, it releases excess gas from inside the turbo.

BrianR
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Old 05-11-2000, 10:56 AM   #5
kid22
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actually a legacy turbo for $250 ain't that bad. but i know turbo sells a t28 ball bearing compressor for $460 which is dayam good, but stick with urs, you'll get some good psi outta that
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Old 05-11-2000, 11:09 AM   #6
efoo
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hey guys,

maybe we should keep communicating and comparing notes if we're working on our own turbo projects.

I have a ported Mitsubishi TD05-14B on the way, and a HKS SSBOV (needs some work though). Now I'm looking for an intercooler, fuel pump, etc. Thoughts?

-Edwin
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Old 05-11-2000, 11:09 AM   #7
Tim Prudence
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Giulio,

You want to get the turbo, headers, crossover pipe, up pipe, and downpipe if possible. All these can be fitted to our cars. You absolutely need these parts if you want to make the install possible without LOTS of fabrication. You should be able to find this stuff for around $500 or less.

On my install I spent about $700 on labor. That included the install of a turbo crossmember (you'll need that too!), the headers, turbo, piping, fabricating intake pipes, install of clutch (you might not want to do that), and other small stuff like welding on the BOV, fpr, etc. If you live in SoCal I recommend ISR for the install.

In any case, in addition to that turbo stuff and the crossmember, you'll probably need a fuel pressure riser, a blow off valve (you can get a cheap OEM mitsubishi or audi), lots of small stuff like gaskets and spacers and hoses (these really add up $$$), and you'll also need to have some exhaust fabrication done because the turbo downpipe will not connect to the RS catback exhaust.

Tim
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Old 05-11-2000, 11:19 AM   #8
kid22
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oh yeh tim's right, i forgot about that "re-fabricating" part!!
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Old 05-11-2000, 11:21 AM   #9
efoo
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One warning about the BOV...

The stock Mitsubishi BOV is set for 14psi. It's not adjustable downwards either, so I'd be careful using it. Our motors should probably only be boosted to 10psi safely (unless you start running better engine management and such).

So, you might want to go look for an adjustable BOV or at least an OEM one that's set for a lower pressure. I ended up with a HKS BOV, but that's only because I'm getting it really cheap.

-Edwin
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Old 05-11-2000, 11:30 AM   #10
kid22
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how cheap? i got an offer for an HKS BOV for $80.
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Old 05-11-2000, 11:32 AM   #11
efoo
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I'm picking up a HKS Super-Sequential BOV for $50, but it needs some work as I said. It's broken, but I'm confident I can fix it.

List price for those things is $250 I think or something like that.

Where'd you get your HKS BOV? Is it the normal type?

-Edwin
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Old 05-11-2000, 11:36 AM   #12
kid22
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it's a standard BOV, that's all i need right? just as long as it does it's job i guess
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Old 05-11-2000, 01:23 PM   #13
HRE | giulio
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Post

do legacy's have a BOV? I'd like to get as many parts out of a junked legacy as possible.
you guys rule, thanks for the helpful info!

Tim, is your kit complete? running on your car? How is it?
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Old 05-11-2000, 01:40 PM   #14
Saw Jai
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MY00 Impreza 2.5RS
Blue Ridge Pearl

Question

Any advice for a good place to do install work up in the Bay Area? My friend is rebuilding his 92 Stealth twin turbo...and hes getting new turbos...he said I could have his old ones...you guys think those will fit? and will they be ok?

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Old 05-11-2000, 01:46 PM   #15
Tim Prudence
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My kit's complete. Running well except for some light detonation almost always occuring when I'm shifting. This should go away when I install the ITC and pull back timing a few degrees. I have no intercooler and am running 5-6 psi. What I think is happening is that the knock sensor is sensing knock and pulling back timing, so I don't get detonation, but after I shift boost is released (by BOV) and timing is advanced again. When I step on the throttle after a shift, the turbo is already spooled and the ECU can't adjust quick enough to an instant 5psi so I can hear detonation.

In any case, I'm going to install the ITC after work today. Then I still need to adjust fuel this weekend and install colder plugs once I have the fuel and timing under control. Then I should have a nice safety margin.
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Old 05-11-2000, 07:56 PM   #16
Wreckleford
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Efoo, you are confusing the BOV with the wastegate. The BOV does not control the amount of boost that your turbo system achieves.

The Mitsubishi valve that comes on the 2g Eclipse starts leaking at about 14 psi, so it would only be a problem to you if you are boosting above 14psi.
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