well I'm almost there guys... the block is done at the machine shop and ready to go. but it turns out that .... well i wanted to keep the bore size stock to try and make it last longer.... which I know is a toss up when building a street machine.. but I wanted after market pistons.. which I can get there my work at a discount, but only in a bigger bore... so my question is other than the usual things you have to change to work with the bigger pistons what esle would I have to do.... I want to get around 300hp at the wheel. That seems like a good base for now.... what do you guys think ...?????
well I'm almost there guys... the block is done at the machine shop and ready to go. but it turns out that .... well i wanted to keep the bore size stock to try and make it last longer.... which I know is a toss up when building a street machine.. but I wanted after market pistons.. which I can get there my work at a discount, but only in a bigger bore... so my question is other than the usual things you have to change to work with the bigger pistons what esle would I have to do.... I want to get around 300hp at the wheel. That seems like a good base for now.... what do you guys think ...?????
with a 87.5 OEM bore is large enough to make 300WHP with a turbo kit. I wouldn't mess around with the block too much since these blocks don't have sleeves.
i'm assuming he has a 5sfe motor by looking at the avatar.
If so, it's block is iron like the 3sgte. You can bore up to .040, which I did. I went with JE Forged pistons and raised the compression alittle from 8.8/1 to 9.0/1 and still kept it a non interference motor.
I would only use sleeving on an aluminum block.
If so, it's block is iron like the 3sgte. You can bore up to .040, which I did. I went with JE Forged pistons and raised the compression alittle from 8.8/1 to 9.0/1 and still kept it a non interference motor.
I would only use sleeving on an aluminum block.
so the 5sfe is iron? something new i just learn then.. I always thought the only iron blocks were the 3SGE beams and 3SGTE ones only. JE and CP pistons are nice ones..although they run prices around the 500-600 prices. Just don't go with Mahle pistons. I have some 13.0 compression in my N/A Integra GSR and I gotta say it cost around the 800 dollar range for it. damn!
so the 5sfe is iron? something new i just learn then.. I always thought the only iron blocks were the 3SGE beams and 3SGTE ones only. JE and CP pistons are nice ones..although they run prices around the 500-600 prices. Just don't go with Mahle pistons. I have some 13.0 compression in my N/A Integra GSR and I gotta say it cost around the 800 dollar range for it. damn!
Oh yeah. Some MR2 guys are building strokers out of them and creating some HP beasts. The 3sgte head is a direct bolt on.
It was $525.00 for my set of JE's with wrist pins and Pro Seal rings.
alright ... so it is a 3SGTE out of a 91 alltrac USDM. I decide that im gonna go .040 over and just go for it... now since I'm doing this is there any major problems I should be looking for....? the whole top end is going be done over and a upgraded turbo...but just wondering if there something that 'm over looking .......
Well, if you're wanting 300rwhp, you will need a bigger Turbo than the stock CT26 .
Fuel mods
A stage 2 clutch, as the stock clutch is only good to 280hp
A bigger intercooler and fan
Boost controller
Some type of Air/fuel controller or engine management.
Just to o start.
Here's a link with some info that I think is great if you want a dependable 3sgte DD .
It's for the MR2 3sgte. So all the info there, engine wise, is 100% applicable .
So I am curious. I bought a 91 GTS that was only running on one piston,that was already bored .020 so I just rebuilt the engine with all new everything hoping that it would restore the power, but once I was done it still lacked power. Is that because with the bore it has lost some compression? How would I increase the compression? Or I guess the best question is what else needs to be done after the cylinders are bored? Please help as my car is begging to have it's power..
When you bought the over size pistons, what was their compression ratio?
You can raise your compression by using a thinner head gasket. Did you do any head work?
Also, which engine do you have?
When you bought the over size pistons, what was their compression ratio?
You can raise your compression by using a thinner head gasket. Did you do any head work?
Also, which engine do you have?
I have the 2.2 5SFE engine. I'm not a hundred percent sure what the compression ratio was. I bought the rebuild kit off ebay. Not sure it's the best but it's what was available for the time frame I had at the time.
I had the head machined and put in new valves, valve seals, and springs had the cam polished. other that than nothing to the else to the head.
Probably stock compression and cast aluminum. Thats good for the head.
A header and freer flowing intake is a good start for more power (alittlle). There's not alot of perfomance products out there for the 5sfe. It's got a great iron block, but the head is an "economy" head.
Probably stock compression and cast aluminum. Thats good for the head.
A header and freer flowing intake is a good start for more power (alittlle). There's not alot of perfomance products out there for the 5sfe. It's got a great iron block, but the head is an "economy" head.
Yeah that's what I was thinking too but I'm curious do I need to do anything to get more air/fuel into the engine now that it's bored? (bigger injectors, port and polish, bigger cam or cam pucks?)
The way I'm thinking it is (maybe wrong) but now that I've got a bigger cylinder and piston don't I need to increase fuel and air quantity to actually make it do anything? or does the computer notice it and automatically adjust?
I drove a 94 Celica with the 2.2 and that thing ripped compared to mine doing 60 in 2nd gear completely stock. Mine tops out in 2nd at 34-40ish. I'm not sure if it has to do with the rebuild or maybe small improvement to the engine over the 3 year gap.
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should I go bigger...??
now since I'm doing this is there any major problems I should be looking for....? the whole top end is going be done over and a upgraded turbo...but just wondering if there something that 'm over looking .......
i don't know.... i just had to....
Not sure it's the best but it's what was available for the time frame I had at the time. 
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