b16a

i was thinking about building an f22 block h23 head and a dsm setup with maybe a 16g is this a good idea? bad idea? it will be going in a 91 accord. what kind of power would i be looking at. ive heard the f22 blocks are very good for boost. please let me know your opinions.
thanks

NYSEownsme

The F22 is a good candidate for boost because of its low compression ratio. You cannot run high boost levels on the stock block because of its open deck design. Dropping the H23 head onto the F22 block gives you a better flowing head, added tunability via individual cam timing and more aggressive cam profiles. On a basic DSM setup, tuned with uberdata or crome, you could easily get 175 to 225 hp.

crxnfx

and def improve the valve train. I've heard continously that the head is ill-suited for turbo because that reason. I would love to do that (if I had the money and if my wife could part with her car....)

NYSEownsme

Really? I haven't heard anything about that.

slowrx

I thought the f22 was an sohc and the h23 was a dohc?

flacopower

best website for information on this is www.cb7tuner.com .. it is dedicated to 90-93 accords. there are quite a few boosted accords running around.. there is a h22 turbo with 641whp.. pretty crazy.. but with a 16g running 8 psi on a stock f22a6 you are probably looking at 190-210Whp.. which equals out to about 230-250hp at the crank..

b16a

thank you for all the input yea i have read a lot on there but i havent seen ne with the h23 head im prob gonna bore out the block eventually and use forged rods and pistons and do some work on the valvetrain. as for the turbo its a friend of mine that ran it on his 2nd gen i believe he ran a 12.5 it has mild port work on it. so i think the turbo will be ok but with this set up will it be able to be daily driven im not really planning on running much boost until i fully build it.i also heard somewhere that the f22 blocks were iron i dunno about this is it true?

b16a

nm that was his 14b so its just a regular evo 16g

flacopower

if you are so dead set on the h23 head, why don't you just go with an entire h23 setup? the blocks are pretty cheap.. and yes the f22 blocks are cast iron. and if you did a little searching you would find that people have used the h23 head before.. the advantage to using a f22 though is that it is almost a direct match to the 4g63t on the exhaust ports. meaning with a little bit of modification, any mani for dsms will fit on the f22. best advice is make sure you do a compression check before turboing because the weak link of the f22 are the piston rings

b16a

im not really set on the h23 head i was just thinking of using it because they flow better and its dohc