Meateater

I asked the rep today how much the crower stroker kit for the h22a would be.

" $3900 for billet crank, billet rods, custom JE pistons, pins, rings and
locks. Delivery is 16 weeks. 50% deposit required. Looking at 2.5L with
sleeved block (89mm+ bore) and 95mm stroke.
"
Thats what he said. Appoximately how much wheel horsepower would this produce, and is this a practical and safe thing to do to your engine?

boomslang

Use an H23 crank and rods. Resleeve and bore it. You'll get 2.4L.

I don't see how they get 2.5L, do the math.

DirtyLude

They get 2.5l by using a custom billet crank that they make, with longer stroke than the H23 crank.

boomslang

H23 = 95 mm stroke.

DirtyLude

I'm embarassed now. I just skimmed over it and didn't see the specs farther on.

Merlin1o

whats the stock bore on an H22?

bb6h22a

H22A: 87.0 mm bore and 90.7 mm stroke.
You should inquire about the rod ratio that the stroker kit will produce, since the h22 already has a poor rod ratio, increasing the stroke and bore will no doubt lower this further, and subsiquently the motors longevity and health could be shortened, considerably. Stroker kits/engines are usually used in race only applications for increasing displacement, if at all possible, increasing bore is the more favorable way to gain displacement w/out harming the geometry or initial design of the motor, and its drivability! Also, using an h23 crank, in an h22 would only gain you an additional 0.1 liters, if your using stock bore, at least thats what I have been told. The f22 has an 85mm bore and a 95mm stroke, not sure about the h23.


[Modified by bb6h22a, 5:48 PM 11/2/2001]


[Modified by bb6h22a, 5:48 PM 11/2/2001]

Backyard Speical

This guy got a great point, but i think is better off to stay away from the h23 rods and crank. that just going to give you a bad rod stroke ratio. if you're looking for a simple street setup, do not go with the stroker kit, just go with something simple on the block and some dope cams.
i think that would do it. good luck

archmage

what if you don't want a normal street car eh? What then

Seriously though, would you guys recommend something like that? What kind of benefits could one gain from increased displacement like this?

4doorH22

Aren't there rumors that the H23 crank isn't so "tough?"

Backyard Speical

if you don't want a normal street car and decide to go all out, than i would say you could give the crower stroker kit a try.
the benefits of increased displacement is for more TQ and HP also but mostly TQ.
Prelude motor has great TQ but that baby really need some more high end. The JUN3s are on the market now and i have no idea how great those cams are. but it should be good.
The crower 3 cams came out a while ago. we had some dyno tested on those cams. its pretty good, makes power all the way up to 9K for the prelude motor!!!!
but for street go simple for drag go big
good luck

by the way the h23 crank is ok, but i wouldn't put that in the h22a motor, its good for increase displacement. but it does decrease your rod stroke ratio, if you want to rev a motor up hight you should get good rod stroke ratio so your motor would be freely reving up to those high RPMs


[Modified by Prodigy 2.2 EK, 12:17 AM 11/4/2001]