hello all i have a few questions i was wondering if you guys could help me out. I am planning on buying a 97 awd 2.2l impreza but wanted to know more about boosting it before i buy it. The way i understand it is that a jdm legacy turbo manifold will bolt on right? Then could i use say a wrx tmic with a wrx turbo and buy a hose kit and have the remaining lines fabricated. will this all work ok or is there a flaw in my master plan? any info at all would be greatly appreciated. Another quick question is about swapping heads i am under the impression that the stock single port heads have horrible flow characteristics. what heads if any could be bolted on, and what manifold would i need then. I understand that i am asking alot but i need to know my options before i sell my 240sx
thanx

 

[QUOTE]Originally posted by poorboy
[B]hello all i have a few questions i was wondering if you guys could help me out. I am planning on buying a 97 awd 2.2l impreza but wanted to know more about boosting it before i buy it. The way i understand it is that a jdm legacy turbo manifold will bolt on right? Then could i use say a wrx tmic with a wrx turbo and buy a hose kit and have the remaining lines fabricated. will this all work ok or is there a flaw in my master plan? any info at all would be greatly appreciated. Another quick question is about swapping heads i am under the impression that the stock single port heads have horrible flow characteristics. what heads if any could be bolted on, and what manifold would i need then. I understand that i am asking alot but i need to know my options before i sell my 240sx



Hey, have you found anthing out about that i have a 95 looking to upgrade too let me know thanks or email me at jon_vrabel@yahoo.com thanx

 

no man, all i have heard is rumors and speculation. I was hoping to have found out something for sure at least dealing with the manifold. I however did see a 2.5rs in a recent modified mag that said he was using a jdm legacy turbo manifold, i think the blocks are extrernally the same , but i am almost positive the heads are different. hopefully the moderator will jump in and lend us a hand

 

hey kids i talked to a gentleman who has a wrx with a claimed 4oo hp. He told me that the wrx heads will bolt on to the 2.2l block with no problem, wich will then allow the use of wrx manifold, after that the rest of the boosting process is stright forward, mount your intercooler run your lines, and figure out how to tune it. any way this is still just rumors to me untill i can have a good amount of people tell me this is legit . once again anyone reading this post any help is greatly appreciated, please if you have any info don't be afraid to share it

 

do you know if you are still running stock injectors? i am doing a n/a high compression build on my 2.2, but i have to upgrade my injectors, and am trying to figure out my options.

thanks for any help!

 

As far as injectors go, STI injectors are the best choice, but very pricey. I'm running JDM silvia 370cc injectors on my turbo 2.2L, and with about 250 hp, I've got them turned down almost 40% with my S-AFC. So needless to say, they're sufficient for a good deal more horsepower, and I picked up the whole set for less than $200 on e-bay. MInor modifications to the injector wiring connection is necessary, but no compatability problems have been experienced.

Poorboy, don't even F#$% with the WRX tmic!! It's a HUGE pain in the a$$. I did it, thinking the same thing you did. It won't fit in the engine bay, so you'll have to reroute every wiring harness, remove A/C lines, and shave down your throttle body inlet and tmic outlet just to squeeze it in. Not to mention all the metal cutting you'll have to do. In addition, the inlet to the compressor side of the turbo is only an inch away from the intake manifold, requiring a custom up-pipe modification or intake. GO WITH A PRE-MADE turbo kit. You'll save time, money, and sanity.

7

 

Fast Legacy....

How much more fuel flow do you need? You can look into getting your injectors cleaned/flowed, then just use an adjustable fuel pressure regulator to increase there flow. You can go 10 psi up safely, beyond that I'm not sure. So you basically have to find out how much more fuel you need before buy a set of injectors.

Nick A.

 

You boost 17 psi on stock internals and you'll be picking metal shards out of your engine bay. BAN SUV's is right, man. My brother had a boost controller glitch resulting in a spike of 15 psi on a internally stock motor 2.5 running a Spearco FMIC and 370cc injectors, and it blew a rod straight through the engine block. But feel free to try it. Unless you can lower your compression to about 8.5-1, then it's not unreasonable to boost 20+, but your tranny won't be happy.