I'm taking my block and head to King Motorsports next week to have it built. It will be fitted with some 87mm pistons and crower maxi-lite rods. All arp bolts will be used. My head has been P&P'd (stage 4) Dh-Racing and port matched to H23 runners with his custom plenum/tb combo on top. I want to run high compression 12:1? and the Crower cam and manifold setup are biased toward top end power. I want to build an F23 that won't run outta steam on the top end, but still have generous low end power. Will be tuned with Hondata. I have all the parts laying around my house for the build. I will be posting pics of my ride and updates on the progress. I know that not many people build F23's and I really just wanted something different. I'm hoping the P&P work and other breathing parts can "fix" some of the F23's drawbacks.


Modified by michaelprice83 at 11:10 AM 9/19/2008

 

What are you doing for header? Nothing off the shelf will let you get that HP out of the F23. It would be wise to do away with the balance shafts to free up some rotating mass and increase the oil psi.

When it comes to the F series single cams there is a compromis when increasing rev's and going for a wider power band. The higher you plan on reving the motor the more you will loose on the bottom end. There is and has to be a traid off.

 

not sure for header, will bisi make one for F23?? What do you recommend? Definitely doing away with balance shaft. There are a lot of single cam motors, non-honda that made mad power, the f23's problem is flow correct?

 

Those numbers are probably a bit unrealistic unless you just have a LOT of money burning a hole in your pocket. The F23 head is far from ideal for making NA power. A ported F22A cylinder head is a much better place to start.

I also don't think that Crower makes any F-series SOHC camshaft.

220whp on an F22/F23 hybrid is definately possible though maube not very streetable. Not too sure about the 190wtq either.

Do your research and assemble it with the right parts it won't be too hard to hit your goals, just expensive.

Pirate

 

I have money burning a hole yes! I'm going to build the F23 to see how it goes. Crower reground a camshaft for my F23.

 

Port that head a LOT then.

Good to know that Crower does regrinds. They never advertised that service in the past. Good to know.

 

bisi makes a cam for that f sohc vtec and non vtec.
your gonna need expoy for the head as their isn't much material seperating the water jacket.

good luck...i thing you might be able to get a header from bisi also

 

hey epoxy on the head? how exactly does this work, I have no idea what you're referring to. anyone care to explain?

 

and yes, the head has been ported A LOT and its now breathing through much larger H23 ports. I really don't think breathing will be a problem on this head, even though it was once a stock F23. what is it about the f22 that gives it an advantage over the F23 as a starting point?

 

the cast is different./ first gen f22a non vtec head is one of the best flowing heads that honda made

are you still using the standard size valves in the head?

would like to see the outcome of this


Modified by alterdcreations at 8:01 AM 9/19/2008

 

I don't know about a header from bisi. When I was looking at trying to get one for the F22b2 that i have (same exhaust pattern) he said that he would need at least 100 people to be interested to make it feasable. You may have better luck with SMSP, but give bisi a call.

On the vtec single cam F heads you'll find out that, that is there weak link. It add's A LOT of rotational mass.

As a thought for, when doing you main bearings have who ever assembles the block drill out the oiling holes in the main bearings in the girdle and the block half's to match the holes in there respective spots. The F23 will spin a main bearing at high RPM if there is not enough oil. There is a surprising difference in the bearing and the the block/girdle oiling hole sizes.

 

SMSP? who is that?? got a website? ALso what were you saying adds A LOT of rotational mass??

 

standard honda valves. i'm not sure what was done to them. should i take some pics and post them? i had the head done over a year ago and I wasn't exactly in the know, and really I'm still not when it comes to valves.

 

Here are some pics of my head..........

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second pic is of exhaust port

 

good luck with it. looks good's

 

Sorry to be harsh but those exhaust ports are not even ported all the way judging by the pic's. It also looks like they did it with a chisel or chain saw.

 

Looks like the combustion chambers have not even been touched. Yeah that head is NOWHERE near what the f22 head looks like at all. A bone stock f22 flows more than the one you have in the pics... IMO , you are throwing your money away.

 

good luck, didnt need epoxy

 

im sorry but i just notices the guides are cracked in the first pic

 

interesting. really? i'll have to go home and check that out. are you sure?

 

alterdcreations, you are correct. the one valve guide is cracked in half.

 

can anything be done to salvage this head???

 

well, after getting the head checked out. all that talk about cracked guides and whatnot was a bunch of crap. sorry guys but you got me worked up about nothing. the head flows pretty good too 275cfm intake and 195cfm exhaust. Better than a stock H22, and I'm going to get it worked a bit more hopefullly to 300cfm or so.

 

good luck again.
make sure you don't cheap out on the header(custom) or none of this will be worth it