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Old 06-09-2004, 02:49 AM   #1
WRC1
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Join Date: Nov 2003
Location: Los Angeles, Ca/Madison, Wi
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2000 Impreza 2.5 RS
Blue Ridge Pearl

Default Questions about a custom turbo job.

Hey, my brother and I are contemplating turboing my 2000 2.5 RS... using my brothers spare K26/6, the turbocharger from his '87 944 turbo. We've been talking about it for a few days, trying to plan exaclty what it would take. Of course it would take custom piping, which i think would be covered by a road trip to alabama to pay a friend a visit who knows how to do pipe work, as he can do that, and do a great job. It would probably come out to less then paying a shop to do it, and we get to see the country.
the 944 turbo has the same displacement as my car, so I don't for see any issues with the K26/6 being to large. A used intercooler from a wrx, with an intercooler pipe made by joe fed into the intake manifold, then into the head, which would be ported and polished, maybe some valve work. We are trying to decide what kind of internal work is approprite. We know something has to be done about pistons, were thinking 8:1 or 8.5:1 compression is a good # and we are wondering, can the stock pistons be milled or machined to meet this compression ratio, and stil be strong to hold up to about 10-15 psi? We are trying to decide if upgrading rods, and even crankshaft is appropriate. our biggest issue is engine managment. A stand alone is mandatory. the stand alone will be expensive, and we'd like to find the cheapest way to do it. we want to use a stock 951 (944 Turbo) wastegate, somehow build in with the exhaust sytem, shouldnt be hard to do, and of course some diverter valve. then theres little details like gauges and such, and probably wideband O2...
The questions:
-does the K26/6 seem like a decent turbo to use, considering this will be a tight budget job, and should cost like 150 for a compltete rebuild kit.
-what kind of engine managment is good, cheap as possible?
-my engine work questions, and also what kind of internal work do you think should be done to reliable accept 12-15?
-if you see any flaws, missing points, etc in our preliminary plan, let me know.
- I want any and all advice you have to give, suggestions, ideas etc etc etc. if you have a commetn, i wanna hear it. we are in research stage and are trying to learn all we can about the notion.

The tranny is a problem, the non STi trannies are weak. i wouldnt give his tranny more then 15K with a turbo set up, good excuse to go to a DCCD (driver controlled center differential) 6 speed STi unit!

thanks for the help
~Leor
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Old 06-09-2004, 06:48 PM   #2
munkis
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A WRX swap would be alot cheaper.

Jay
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Old 06-09-2004, 06:54 PM   #3
benjaminetanyahoo
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No kidding
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Old 06-10-2004, 01:40 PM   #4
White 2.5rs
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It would probably come out to less then paying a shop to do it, and we get to see the country.

uhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh no

u buy the pipes, and bends, for the ENTIRE EXHAUST system minus the headers, youre lookin at about 100 in parts, and about 180 in labor

now gas @ 2.20 a gallon.....
roger
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Old 06-10-2004, 09:38 PM   #5
WRC1
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Blue Ridge Pearl

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Quote:
Originally posted by McDade
A WRX swap would be alot cheaper.

Jay
Well labor, tunning, and customizing is all free plus i have a bunch of spare crap in my garage, so there are only a couple of things to buy.

Quote:
Originally posted by White 2.5rs
It would probably come out to less then paying a shop to do it, and we get to see the country.

uhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh no

u buy the pipes, and bends, for the ENTIRE EXHAUST system minus the headers, youre lookin at about 100 in parts, and about 180 in labor

now gas @ 2.20 a gallon.....
roger
It would be a little more expensive then that but anyway if i do this i get to see a good friend that i havent seen a long time which almost makes it worth it. AND, he'll be doing headers too, the most expensive part you left out. I also don't see a place developing a complete intake, intercooler pip, and exhaust plumbing system for 280 bucks, that and it wont nearly be as good of a job as what I will get from this guy. Not to mention he will help with the instal of everything, and he will help with all the tuning.

~Leor

Last edited by WRC1; 06-11-2004 at 03:44 PM.
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