turbo engine Qs

[kc8enb07]

im plannin a turbo engine for my 92 accord. theres my 2 options

1. f22a6 w/ a h23a1 head
2. f22b dohc

whats a better set up? would the h23 head have problems blowing headgaskets bc they werent made to be together? i plan to run a t3/t4 turbo and 10psi min.

[bjaccord]

f22b dohc, odds are it will have lower miles than the f22a6, however, if the a6 is in good shape, just boost it, don't mess around with the h23 head swap until you decide to build, and go for more than 10psi. L8r

[kc8enb07]

the f22a6 has 194k on it. but wouldnt the h23 head have aalot better flow?

[Got2rbo]

194k is a lot of miles to be boosting. I think it would be easier to just get the F22B, that way you will also have a lower mileage bottom end. The cost to do the H23 on the f22 is probably the same as the f22b motor.

If you decide to go turbo, concentrate on fuel and tuning. Detonation is what destroy engines. Tuning is very important.

[kc8enb07]

well i wasnt going to use the f22a6 thats in my accord now. i found the head and turbo mani real cheap and i was going to get a f22a4 that had i think 80k-ish miles to build. id kinda like to build the head vs buy a jdm and boost. but i was also lookin for most hp and tq

[bjaccord]

A turbo manifold for an f22a will also fit the h23a1 and f22b Dohc's, they all have the same port design.

You'd be best off just boosting an f22b dohc, no building hybrid motors (Even though there simple) and would have lower mileage, delivered to your door for about 750.00

L8r

[kc8enb07]

true just wanted to have one of those " yeah i built that" things.

different idea, what can be done to a f22a to be able to gain strength and more hp? can u get turbo cams for a f22b dohc? my goal is 300whp

[bjaccord]

Delta has their regrinds for the f22b dohc, the 260-272-282 and custom, crower makes there turbo cams and other companies can also do custom grinds.

If I were you, I would still buy a f22b dohc, some delta 260's, maybe some 272's (but that will move the power band up a good bit) do a full tune up on the f22b, mill the head just a bit and use a factory headgasket with some arp studs, gasket match the ports and manifolds, and maybe pay someone to do a minor port/polish if you like and 300whp should be attainable near 11psi, maybe less.

L8r

[kc8enb07]

how much psi can the stock internals take?

[bjaccord]

I was going to take mine to 12psi, but never got the chance, I ran it out of gas in the top of 4th going down the track ran lean and melted some pistons.

I made 280whp on my final tune with my h23, with the delta 260's at 9.5 psi, and still had plenty left in it. I made over 280whp on one pass but we thought we heard a bit of detonation and pulled a bit of timing. My turbo kit is about average, maybe a bit better, with my h23 having 175k miles on it at the time.

I wanted 325whp on a stock block, near 12psi. 10.5 psi should have made the 300 mark.

L8r

[whitejdmcb7]

boost the f22a the block is strong enough put some block retainers in and booost it like 10psi and ull be fine

[kc8enb07]

i know i bet i can find this on the site, but what internal upgrades can u do to handle boost better? i want to over build bc its a daily driver