ivan93egreppin210

im wondering if anyone has ran this setup. i come up with a 12.3:1 CR. is the 272 grind good enough for this setup? i can use e85 if needed.



EDIT......... I decided to build it and these are the parts i used. also if any members of SAI are reading this, thanks for following my postings onto another site. thats pretty cool.

EDIT.......... motor dynoed 194 whp and 163 tq on a MUSTANG DYNO!!

f23 block,crank,rods,
f22a6 head (pulled from junkyard with stock crusty valves.)
272 grind on ebay cam gear. (cam gear sucks.went back to stock)
k20 type s pistons.
h23 intake
omniman 70mm tb (not port matched to stock plenum opening)
dsm 450cc injectors (now using rdx injectors)
QSD H2B kit eg/dc

i have no idea what this thing will dyno but we shall see before the weeks out i promise.

EDIT......2/24/13.. posted a pic below of the sleeved f23 im building and my custom 90mm 14.8 cr pistons

hondamark35

the K20A2 pistons should get you around 12.3:1 static. K20A3 will be lower, around 11.5:1 static.

i've been slowly building one of these for a while now. i plan to use the 272 to get things running. However, I won't be using the F23 head. AFAccord is running a Bisi cam in his F23A1. if you do a search for posts by him you may find more of the info you're looking for.

JJsMotorsports

iTrader: (1)

are you using the f22a head? what valve train will you be using?

92civlude

The K and the F engines spin in opposite directions. If the K piston has an offset pin, like an OEM piston. The K piston must be installed backwards for proper pin offset.

hondamark35

ivan93egreppin210

has anyone clayed this setup to see how the valves sit in the valve relief? i wont be using the f23 head either. i just bought an f22a6 head with cams. i can send the cam off to delta monday if its worth it. also will this cam be good with stock springs and retainers? i can set me redline at 7500 if needed

hondamark35

i don't have my cam yet so i haven't clay-ed in the traditional sense, but i did approximate the max valve lift at TDC and had enough clearance between all components.

i found a great deal on a set of springs and retainers so i went ahead and got them. Delta will likely have an answer for you. And maybe someone here with first hand experience will chime in.

ivan93egreppin210

ok so i decided to build this monster and so far im impressed with how its coming together. here are some pics.

92civlude

NICE! Its going to be a torque beast. Ditch the balancer belt.
The pistons should be backwards though.

ivan93egreppin210

do you think the motor will vibrate at higher rpm without the balancers? it might be a k series pulley. to be honest its the one that fit out of the few i had to choose from.lol i cant help but notice how much the f23 shares in common with the k20. lets just say i matched an f23a1 head gasket to a k20 head and the results require a whole new thread lol.

ivan93egreppin210

did i mention this was an f2b setup in an integra? next year it will be going in a cb7 coupe with type s tranny. that should be full of win. this setup is the base motor for an all out drag motor. this motor is 97x86. our drag motor will be 104x90 if all goes well. enjoy.

gogydm

I like how a lot of people are building SOHC engines now... And people thought that the F series was an economy engine...

hondamark35

it is in a 3400lb sedan.. haha. when you cut 1/2 ton off the car and give it a short gearbox and smaller wheel/tire combo... it makes sense.

92civlude

Dont forget a good boost of compression too!

92civlude

You wont notice any vibration issues with the belt off. Its good for at least 3 hp removed, less rotating mass.

Hairnandez

How's old Max doing? he built my LS-Vtec in my old DC before it was stolen.

ivan93egreppin210

awesome. ill do a couple dyno runs and see where im at. then ill cut the belt out and do another pull. would like to know for a fact if it increases power. this whole setup is an experiment so any data i can collect will help in future searches on the topic.


he is good. his shop has taken on a very professional atmosphere. we are swamped with new customers and have plenty old loyal customers. we must be doing something right. im ivan. been working for him for a few months learning alot. there is no one better to learn almost everything honda from. im very fortunate to be part of the rebirth of his shop.

Hairnandez

I would still be hanging around if I didn't have to move back east.
I have an F23 in a 99 2.3 CL and was looking into that delta cam. lemme know how it works out.

ivan93egreppin210

this is debatable. PirateMcFred
has said on more than one occasion that it WILL add unnecessary stress on the walls but over a long period of time. to be honest this motor will be lucky to stay together a month. i see a Portflow PNP in the near future along with off the shelf Wiseco k24 pistons, custom Cunningham rods, and a hot cam. i would like to see 300 hp out of one of these.

ivan93egreppin210

i will. just check in on this thread after this weekend. should be dynoed by then. im gonna dyno it on a mustang dyno. heard shes a heart breaker.lol

92civlude

Honda designs an offset pin for longevity and a quieter engine. If the offset is backwards, there will be stress on the skirts and piston walls. And, premature wear. I have backwards K20a3 pistons in my boosted G23 and about 15,000 miles on the engine with no issues. It is debatable. But a proper offset is a wiser choice. Arent some aftermarket pistons designed with 0 offset? I know weisco designs an OEM style offset in their pistons.

ivan93egreppin210

i dont doubt you one bit and i believe your advice is solid. i didnt want to open up the exhaust side valve reliefsand remove material lowering my compression. i need all i can get. i also have an h22 head i could slap on if i get bored.lol this setup wont see 3000 miles im sure before we tear it down. this is just a base build.

92civlude

Have fun tearing it up! Your going to love the torque. Maybe you can be the first guy to actually see how high this engine will rev. 8000? more?

ivan93egreppin210

i think 8k is a big risk considering the weight of the piston. this combo is heavier than stock. with that said, yes i think we will go bonzi with this setup. never know till you try.lol

STRATTON

looking foward to hearing the out come on this build.

very different, i like it.

stratton.