Alright i have a few questions, i have done some searching and some more searching but i am stuck on 2 things. First: i have a 2.5l open deck block that i could take and put some low compression pistons in or rebuild the 2.2 open deck with the low compression pistons that is in the 97 suby right now. The 2.5 block has thinner cyclinder walls correct? So would the 2.2l be a better idea? what would everyone else do with those 2 choices? Second: For the engine management, i am stuck between just the emanage blue or the pp6. Now i was doin some more reading and from what i saw was that the pp6 isnt too good for boost, and that is it a pita to tune unless you know the system. As for the emanage it is really user friendly and should do everything i want to do. now i dont really wanna spend 1k for em but i know i shouldnt be skimpin on it. so between the two what would everyone suggest.
Don't know if they are the same block but sti motors are 2.5 open deck blocks and they hold up fine. Also engine size is not determined by bore size alone. You don't just bore out a 2.2 to make a 2.5.
pp6 is FTL! It won't work the way you want it to. I had it from my turbo built. The wideband learned around every change. Hydra FTW!
alright so between the em the emanage would be the better way to go. but for the block they are both open decks so i think i may just go for the 2.5 to get the extra low end grunt. well thanks
^ indeed. the 2.2l comes with slightly lower compression from teh factory but if you are going to be changing pistons on them anyway it doesnt matter. the 2.5l will give you more low end grunt. as for EM, i personallly had some bad luck with the pp6 for turbo. but I have heard of alot of people who have had great results. the tuning isnt too bad once you figure out the system, and know how the scaling works.
I gotz 22T!! so fast so furious! You're not stuck yet, get WRX swap w/ your built 2.2L. Can't go wrong with an EJ22E that has forged rods/pistons on WRX heads. Good torque and power if you just want some 300whp. Very reliable and no worries on drivability. or you can just go ahead with your build. Good learning experience.
