the more time that passes this winter the more i want to build my bottom end w/ forged stuff and high compression. airas' web site is down at the moment and other places dont list much for the f22 motors. the rods wont be a problem to source, but i may run into trouble finding high compression pistons. i want/need a piston w/ 10.0+:1 ratio. i havent been able to find anything over 9-9.5 with my short search on the net.

it seems that h23 rods are being talked about more and more on here for use in f22 motors. what is the resoning behind this? is it availablilty or price? or is there something better about these rods compared to f22 aftermarket rods? my plan was to just pick up some forged f22 rods, preferably 11:1 pistons, and drop the hammer. i suppose its easier said than done.

any help in a general direction is much appreciated. thanks.

 

raceeng.com had 11:1 pistons, unfortunately I havnt been able to get to their web site lately.

 

I went with Eagle h22a1 rods because of low price ($300 from importparts.com) and availability. They're just barely longer than the stockers - probably about 1/32nd or 1.25mm or so - My books tell me that they're 1.5mm longer, but they didn't look that much longer. For pistons, I had planned on getting them custom made from the get go. Probably going to go with Ross.

I think the h23 has the same rod length as the f22 if I'm not mistaken, but don't quote me.

Out of curiosity, who did you find with shelf rods for an F22 (besides Crower which are $600+)

 

i would spend the money on crower Ti billet rods,....but thats just me

 

i didnt say i found places that had "shelf" rods, i just said they wouldnt be a problem to source. but, if the h23/f22 rods are the same(which from my understanding they are) i can just pick up the first set i find. i could care less what brand they are, im not going to be putting them under a lot of stress like a forced induction set up would although, i do need the insurance of a forged rod for my application.

who makes the 11:1 piston that raceeng.com offers? do they do it in house or is it another company such as arias.

 

arias
je
endyn(i beleive)

 

Wiseco is making the F22 pistons that raceeng.com is using. What's the deal with their website.

Kentucky Accord - Your the dude with the GUDE, right? Would you rather use hi-comp pistons or mill the head to raise the CR. I was planning on going with the GUDE head package, but since I'm building the bottom end anyway, would the hi-comp pistons be a better way to go?

 

its better to just build the bottom end with the compression than to mill the head to high heaven. although i do have the gude/bullfrog head package and my head is milled, i am going to build the bottom for high compression too. i might not be able to get as big of a dome as i want but i will just have to see what the piston guys say.

 

Man, is that even possible. The GUDE head package raises the CR to 10.8:1 with the stock pistons. It seems to me that adding high CR pistons would be a sure-fire way to scram your motor.

 

like i said, i will have to see what the piston guys have to say about it. i may have to end up going with a flat top or at least a less dished piston with some decent valve clearance. im not so sure that my final ratio right now is 10.8:1. i think they use the 1.6 heads to come up with that figure because i have seen the 1.6 sohc heads and they are milled more than mine. according to the sevice manual the maximum resurface limit is .2mm or .008". im not sure what it is for the civics but they start out with a bit more compression anyway. the accord pistons are reall, really, dished so i am hoping i can get by with a bit more compression from the piston. if i cant, it wont be the end of the world, i will just look for the biggest overbore size piston. my end goal is to have more compression and more displacement but i may only have one choice at this point.
we will just have to see, i will keep you posted.

 

BTW, the accord Gude heads are only raising the compression about 1 point. the claimed 11:1 from milling an f22 head is not true.

 

I talked to GUDE a couple of days ago, and asked specifically about the CR because of the talk about them milling the heads excessively. They told me that they raised the CR to 10.8-1, and that was the highest they thought it could be raised for the F22 to operate reliably on premium fuel. The 10.8-1 CR, with stock bottom end is a full two points over the F22 stock CR of 8.8-1.

If you have verifiable information disputing their claims, I would be very interested.

 

i have talked to bill gude more times than i could spit. i havent spoken to anyone at gude in over 3 years but his claims havent changed any since. i was told by bill personally, as you were, that they mill the heads between 35-40 thousandths.

most people say that every 20 thousandths is about a point of compression so naturally 35-40 would make a good 2 points over stock compression. well, i have been speaking w/ portflow design and arias both about my current situation. both companies told me that with my gude/bullfrog head that i am only running about 1 point over stock. the guys @ arias said that even if i ran their "shelf" piston which is 9.4:1 w/ my current head, i would only be running about 10:1 total compression.
take that for what its worth but i am going to lean towards trusting portflow and arias. im not ******* on the products because hell, i have been running the head package now for like 4 years and its helped me get my 91 accord into the 13s all motor. but, there are most def. better products out there and a correct way of doing things.
based on what both porflow and arias told me, the gude F22 head would have to be milled somewhere in the 70-80 thousandths range to get a full 2 point compression increase.
take all that with a grain of salt or however you want to. all i know is raceeng.com offers an 11:1 wiesco piston set along with some other F22 goodies and i am going the built block route once my 1/4 mile times start leveling off with my current setup. IF what portflow and arias told me is true about the head only raising compression 1 point, then hell i will just run the 11:1s and keep the head for a 12:1 total and drop the hammer!

please feel free to smack me in the face if any of this didnt make sense. thanks.

 

go find some jdm f20b pistons....... 11:1 from the factory..... geez do some research, noone makes damn 85mm pistons cause f motors suck

 

right, one of honda's most reliable, easily boosted low compression motors

 

Kentucky Accord - Makes godd sense.

I've also been looking at the goodies over at Race Engineering. I think I'm going to go with the Gude head package and get the piston/rod package from race engineering. The guy I talked to told me about $1075 for the Crower billet rods and the Wiseco pistons. It'll be a good start. The Accords in the shop right now getting the transmission overhauled. I went with the Level Ten upgrades and an auxillary transmission cooler. I should be through with it by Feb. then we'll see what it'll do.

Good luck with your ride.

 

actually, the 11:1 raceeng.com/wiseco piston is 85mm. besides, even if the f20b has 11:1 stock, they are still cast pistons and not forged. if i am going to spend money on a race only motor, then i will spend my money on forged components and not something that came stock in a honda motor.
thanks for the heads-up though.

 

bump, more info

...I know this is really old

 

"Really old"...that's an understatement.... But at least you did a search and found something on your own.

What information is it that you are specifically looking to get from this thread?

Race Engeneering has Wiseco 85mm or 85.5mm F22 forged piston set with 11:1 compression $460

and Bisimoto Engineering lists an 86mm 12:1 F22 forged piston set for $460

As for rods anything listed under H23/F22/B20A5 will work. I know that Crower and Carrillio both make shelf rods for these engines. $800-$700 for a set.