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Old 01-09-2021, 10:52 AM   #2
Scuby04STi
Scooby Specialist
 
Member#: 328635
Join Date: Aug 2012
Chapter/Region: NWIC
Location: Portland*
Vehicle:
2004 STi GTX3076R
Rally Blue

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Quote:
Originally Posted by BoscoGuo View Post
Hello every professional STI racers! I m located in Toronto, CA. my car is 18 STI and I just did compression and leakdown test days ago, the result is that cylinder 4 is showed 80 PSI for both compression and leakdown test as my STI is only 37600KM
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I have only done Catback, and Cobb Stage 3 kit on my STI and run OTS stage 3 91, 93MAP with Petro94. So I think maybe it is the time to move forward. I am considering to purchase a IAG 900 long block, and only temporarily keep the WHP around 530, but maybe! I need more? who knows that in the future right?(Yep,I m stupid guy I just wanna whp around 530 cuz I had experience with another guy's 550whp before)
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I tried to search some info via forums, even yoube, but I havent found any key info about many guys who are using this 900 long block. and I m also not sure if my budget is big enough to buy parts other than the engine to support with this long block (I m located in Toronto, my budget is $ 30000 CAD for buying whole parts, and labour. This block is cost $17189.02 CAD in trt local certified shop, so the remainng money is 12810.98 ). I supposed if I used Garrett GTX3076R gen2 turbo(or something else may support me to shoot around 550), and FMIC kit ? or aftetmarket stock location turbo with better tmic?
Considering if anyone had IAG long block experience in Canada or have the experience with this block? I m appreciate to it!
I have zero experience with this block.

However, that block costs $14,500 Canadian so that shop has a nice little mark up on you there.

As for the turbo mentioned my car makes 500whp@25psi on the gen 1 so a gen 2 would hit 500+ without trying. That being said a few people do not think the gen2 fits these engines as well as the gen1. It tends to be people get a gen2 gtx3071 or a gen2 gtx3576.

If it was me in your position I would start by seeing what is usable in that engine you already have. The cost associated with buying a new shinny long block can be dramatically cut if you just do a short block and fix up the heads you have or just fix the whole engine. At the 500whp mark porting is just gravy that costs more per whp gained then anything else you do, its not even close.
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