What rods to use with f23 pistons in f22 block

[cb7ronnie]

Ok for those who haven't seen my post before I'll give a quick description of the car/motor



The whip 93 accord 10th anniversary f22a6
ENGINE BLOCK
Hot tanked 3 times
main girdle dissasembled and hot tanked all oil galleys
main girdle inspected and cylinders bored to fit f23 pistons
balance shafts deleted
micropolished crankshaft
king main bearings,thrust washers,standard size
federal mogul rod bearings, standard size
new water pump
new oil pump
new timing belt
new full bottom end gaskets oem
arp headstuds
oil pan with 10an port for
Port and polished cylinder head and valve reliefs
gasket matched on all ports
stock springs and retainers
micropolished camshaft and rocker assembly
new valve seals and valve guides
fresh cut on all 16 valves and valve seats
cylinder head pressure tested,deck/resurface, leak down tested
INTAKE MANIFOLD
lower f22a6 dual runner manifold ported and polished with i believe a 1 1/2 inch intake manifold spacer and upper h22 intake plenum
omni 68mm big bore throttle body
obd2 map sensor
egr block off plate.

Goodies
Godspeed fmic
Godspeed turbo mani
T25 garret ar.80
Blitz bov
*

[Jarrett]

I don't understand why you went with those pistons but if that's what you're set on then I would just use the generic h-beam rods found on eBay for the F22/H23A1. They spec out to 142mm which is .5mm longer than factory. Since you lost roughly .55mm in compression height by switching to F23A pistons that would make up the difference. Assuming no resurface and factory .026" head gasket thickness you'd be around a 9.1:1 compression ratio.

Why a person would do all this and run factory pistons in a turbo application is beyond me. If it were me at this point I'd get some forged K20A pistons and run them backwards.

[deevergote]

Using stock cast pistons won't be a very good idea for a turbo application, though. You're certain to break a ringland sooner or later... that is, if you don't crack a sleeve, since you bored them.

[cb7ronnie]

I went with the f23 piston because I had uneven wear in my cylinder walls but I didn't think about the whole press in and floating wrist pin not to mention I didn't know my rods were to fat to fit the pistons

[cb7ronnie]

I'm not a builder or any of that but my boosted f22b1 accord I had I put over 70,000 miles on it at 12psi with no tune and the turbo kit was an eBay kit but I got rid of it with over 225k and till earlier this year I seen it still running the way I left it no smoke or nothing so as far as ringlands go its a risk I'm going to take on this one although I'm not looking to boost over 12psi

[Jarrett]

With a K20A or F23A piston you're going to have to machine the small end of the rod thinner. Another reason to scrap the F23A piston and go with one made for the F22A. Bisimoto stocks an 86mm piston made by Wiseco.

[cloudasc]

With a K20A or F23A piston you're going to have to machine the small end of the rod thinner. Another reason to scrap the F23A piston and go with one made for the F22A. Bisimoto stocks an 86mm piston made by Wiseco.

Bisimoto uses Arias pistons. http://bisimoto.com/store/index.php?...&cPath=5_9_111

Forged slugs will definately handle boost alot better then the factory cast, and are lighter too!

[Jarrett]

You're right, my friend.

[wed3k]

instead of running this hybrid setup, why don't you just keep it simple and run a forged piston and rod made for the f22.

put your focus on the turbo kit and tuning. keeping things simple eliminates second guessing and diagnostic hours.

[cb7ronnie]

I had new f23 pistons here already and was trying to avoid putting thousands of dollars into a 93 accord that I picked up for 750$ for the fact that IF i needed to sell or get rid of i wouldnt get nearly what i put into it and yes I hear you guys with the ringlands and all that but like I said ive ran 12psi on stock internals in f22b1 with a ported and polished head when I was 17 which I beat the shit out of then traded it for a motorcycle and it never gave me a single problem except alignments axles and somehow a radius arm, But the block is already bored to fit the f23 pistons I have here so I was kinda of hoping I would be able to use/find another set of rods in this application but it's looking like the cheap shit on eBay or the 700-800$ on bisimoto which are probably worth it but I don't have the cash for them right now and the rods are the only thing I lack to finish my build

[wed3k]

then it means you aren't running enough boost if you don't break a ringland.

[cb7ronnie]

i guess ill be going with the rods i found on ebay i called them and they said they were godspeed rods so now i guess the delima or how ever you spell that is weather to shave my rods or my pistons or a little of both?????