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theboyo19
03-08-2009, 01:26 PM
ive got a 95 lsi that the 2.2 sputtered and died on, i swapped in a 99 2.5 dohc but that blew headgaskets, ive fixed that and now it burns oil like a fat kid in a cookie factory :smt010
so... i want to get a little more horses out of my car but dont necessairly have the cash to go for a turbo engine ( plus all i find is the jdm tt 2.0 ) i have both blocks but im wondering what the best route would be to get horsepower out of it.
- would i use 2.2 heads on my 2.5 block wth 2.5 internals (walbro fuel pump needed?)
- or would 2.5 block and heads with high comp. pistons be better?

i want a little more power but i still want my car to be reliable :razz: if thats not a good idea please let me down gently lol :smt023
thanks guys

strat81
03-08-2009, 06:08 PM
phase I 2.5 block, pistons, and heads + ej257 headgaskets = 10.5:1 compression.

the 2.2 heads on the 2.5 block would raise compression but they don't flow very well.

sexystover
03-08-2009, 09:44 PM
why not go turbo? phase 1 ej25 block/heads/pistons with ej22 crank and rods , add a turbo setup and have fun, thats what im doing, i have ej25 block on the way , got some ej25d heads on the bench and i sourced a set of rods and crank from a 22t, now i just need to pickup an safc and s-itc and turbo setup =]

T_F_E
03-08-2009, 09:46 PM
i want to get a little more horses out of my car but dont necessairly have the cash to go for a turbo

sexystover
03-08-2009, 09:47 PM
i want to get a little more horses out of my car but dont necessairly have the cash to go for a turbo


hes already got all the parts, another 400-500 and he could have it turboed, i just figured that statement meant he didnt want to buy a turbo motor or do a swap

StatGSR
03-08-2009, 10:13 PM
stick with the complete 2.5

theboyo19
03-09-2009, 10:02 PM
so is doing 2.2 heads even gonna be worth my time?

rougeben83
03-09-2009, 11:09 PM
so is doing 2.2 heads even gonna be worth my time?

if you just need one car to have a running engine, sure. But if the 2.5 heads are still good, there's really no point.

StatGSR
03-10-2009, 11:08 PM
i doubt u could make more power with a franken motor than u could with a near stock 2.5.

impreza_GC8
03-10-2009, 11:47 PM
why not go turbo? phase 1 ej25 block/heads/pistons with ej22 crank and rods , add a turbo setup and have fun, thats what im doing, i have ej25 block on the way , got some ej25d heads on the bench and i sourced a set of rods and crank from a 22t, now i just need to pickup an safc and s-itc and turbo setup =]
I've been driving this setup for a long time now no problems, running an EJ22T ECU. As long as you don't mind 15-18 mpg its great to daily drive.

caffeine
03-12-2009, 02:08 AM
phase I 2.5 block, pistons, and heads + ej257 headgaskets = 10.5:1 compression.

the 2.2 heads on the 2.5 block would raise compression but they don't flow very well.

Sorry to thread jack.
I'll be doing head gaskets on my EJ25D soon so...I could just toss in some STI head gaskets and get a little more compression?
I tried doing some research but I could fine anything on it.

Thanks

Edit: I think I found it.
http://wac.addr.com/auto/obs/turbo/ejcalcs.html
According to this guy you'd want to use the 00-04 SOHC "thin gasket". That would be Fel-Pro # 26170PT