How much boost/power can a stock F22A6 handle?

[CB7Nub]

I found out that the F22A6 would be much easier to boost than a H22A because it's low compression ratio. I was wondering how much boost/power could the stock internals handle?

Because if it can handle a decent amount 10+ PSI or more I'd rather do that then a H22A swap then turbo on that. And it would be cheaper too, daily driver card btw.

[ali954]

well the f22 can handle stock they say about 6-10psi IF you turbo it correctly and its about the same price as just getting a whole h22. but the h22 is more reliable and depending on how you turbo the f22, youll make about the same power, more or less, than an h22.

but if this is your daily driver and you want to just slap on turbo without doing all the internals, id definitely go with the h22. you definitely want reliability with a daily driver.

[keoni96826]

im going to be boosting my stock f to 10psi and it is my daily driver. i also have a h22 in pieces i bought from my friend that he want to build with a f23 crank and s2k pistons but im going to build a g22 or 23 and boost that instead. i think you should build or get a g22 or 23 i think thats the best build for a cb7 but im not the smartest one on here.

[Vtec1nspir3dCB7]

im going to be boosting my stock f to 10psi and it is my daily driver. i also have a h22 in pieces i bought from my friend that he want to build with a f23 crank and s2k pistons but im going to build a g22 or 23 and boost that instead. i think you should build or get a g22 or 23 i think thats the best build for a cb7 but im not the smartest one on here.

My opinion, i'd want reliablity over boost.
H22 all the way

[bkmc24]

Boost is different pending the turbo. Its annoying to hear people say 10-15 lbs on a t25 is going to be the same as say a t3/4 or gt35r. Tuning is also a HUGE HUGE HUGE part of the process. Quality over quantity is key as well. Make sure everything you buy, is good to decent stuff. Set a goal and aim for it. Look into trims and ar's and read up everything you can about turbos before you pick one you want. Also, compression and leakdown test just to make sure your motor is ready and able to be boosted. Hope i helped. Have fun and good luck.

[rusty1036]

I think he means g22 o 23 bc its f series block and h series head

[bcjammerx]

well the f22 can handle stock they say about 6-10psi IF you turbo it correctly and its about the same price as just getting a whole h22. but the h22 is more reliable and depending on how you turbo the f22, youll make about the same power, more or less, than an h22.

but if this is your daily driver and you want to just slap on turbo without doing all the internals, id definitely go with the h22. you definitely want reliability with a daily driver.

the f and h can both handle boost...the h has frm sleeves which do not take well to forged pistons...if you do not use forged pistons you will most likely ruin your ringlands/piston even with 10psi

the f has iron sleeves and can handle forged pistons.

the f has lower compression which is great for beginner turbor's ...the higher compression CAN be boosted but you must be one good tuner with lots of exp. FIRST.

the h is not "more reliable" than the f it is higher compression thus more finicky with boost...you should not boost it without some experience.

im going to be boosting my stock f to 10psi and it is my daily driver. i also have a h22 in pieces i bought from my friend that he want to build with a f23 crank and s2k pistons but im going to build a g22 or 23 and boost that instead. i think you should build or get a g22 or 23 i think thats the best build for a cb7 but im not the smartest one on here.

Those are not the best...frank motors are NOT reliable, then you add boost onto it??? The member here with the highest power HAS a frank motor...but he has A LOT of experience and KNOWS what he's doing.

Plus boosting the h22 will require more money than an f, and boosting a frank costs WAY more. You may be the exception as you have all these parts lying around, but if you don't...it is much more exp.

the t25 isn't a good turbo...too small...runs hot

IMO...for beginners the f22 is the best to boost...it is the most forgiving, and requires the least amount of internal work.

[CB7Nub]

Ok the problem is though my F22A6 has over 400K KM on it.
But if I did it I would have to change the pistons (what else?) and does 10 PSI sound good or can I do more?

[bkmc24]

Ok the problem is though my F22A6 has over 400K KM on it.
But if I did it I would have to change the pistons (what else?) and does 10 PSI sound good or can I do more?

Just do an OEM rebuild. Look for weak or broken parts, and start replacing them.

[keoni96826]

[QUOTE=bcjammerx;1972160]the f and h can both handle boost...the h has frm sleeves which do not take well to forged pistons...if you do not use forged pistons you will most likely ruin your ringlands/piston even with 10psi

the f has iron sleeves and can handle forged pistons.

the f has lower compression which is great for beginner turbor's ...the higher compression CAN be boosted but you must be one good tuner with lots of exp. FIRST.

the h is not "more reliable" than the f it is higher compression thus more finicky with boost...you should not boost it without some experience.QUOTE]

dont s2k have frm sleeves? they have forged pistons.

[bcjammerx]

dont s2k have frm sleeves? they have forged pistons.

I believe they do...but I'm sure those aren't your everyday forged pistons

[CB7Nub]

How do I know if the parts are broken or weak? I've never done this before, only taken apart a lawnmower engine.

Ah thanks so I can put forged pistons in there, where can I buy this stuff?

[93F22A6]

You could go around 10-12 psi and be ok. But the real question is the amount of power you want to make not how much boost the F is going to be able to handle. Do some searching on boost thread and in mr threads who are successfully boosted, chesseboxer would be a good one to look like.

[CB7Nub]

I want to make the most amount of power the engine could handle from the turbo. Yeah I'll do some searching on the forum, thanks.

[drockab]

It all depends on the milage of the engine and how well it was taken care of. You cant just ask how much psi it can hold because it will vary by turbo. Meaning 10psi from a smaller turbo will be less than 10 psi from a bigger turbo. I will say you can squeeze maybe 300 whp from that motor with a good tune i mean the motor will handle boost and the internals will go first before the sleeves do. and whats great those motors are abundant and worth pennies