i plan on building my dying f23 this summer. i have abour 2 grand saved up so far and i was wondering what would benifit me the most. i talked to a guy on another forum about a port and polishd head for about 600. i want to run 11.5:1 compression pistons and thats all i kno of so far. im not sure what is a good brand for valve springs and retainers. i guess alot of accord people are running the bisi cam but im not sure what stage will be the best for me. i want to come close to 200 hp. any other suggestions you guys have would be awsome. as you can tell im new to te world of a built NA engine.

 

bumpppp

 

The F23 head has pretty small ports and the cam sucks. You will need to get the head flowing pretty good and if you talk to Bisi he'll be able to tell you what cam to order if that's how you want to go.

The exhaust part is easy. A cheap DC with 2.5" collector and exhaust will support 200whp. 11.5-12:1 CR is good enough on the F23. Upgrade to a 60mm TB minimum too.

Focus on the head and cam though.

 

yeah i plan to have the head ported and polished. i also plan on running a bisi cam and in due time a bisi header. i already have a test pipe and a apexi ws2 exhaust so i have that part coverd. you dont think the ws2 is to restrictive do you?

 

The WS2 isn't your limitation right now. Throw the money at the head and then upgrade the other bits afterward. That head is one of the least ideal platforms to work with. I'd throw it in the trash and go with an F22A if you were trying to stay SOHC. My 2¢ is all.

-P

 

This is something Bisi has said many times.

 

its still restrictive even if i get it portrd and polished?

 

Yes,when compared to an f22a head. A ported f22a head will put a vtec sohc f-series head to shame. If I remember correctly the f22a is the 2nd best flowing honda head after the s2000. A complete f22a motor for the head and all the parts you'll need to throw it on your f23 will cost you next to nothing or even nothing at all if you're lucky. I've seen f22a engines for $50-$100.

 

so i can i put the f22 head on my f23? another question is i want to keep my car obd2 to pass NYS inspection so what kind of ecu would i use?

 

In that case you might have to keep the f23 head, f22a engines were obd0 and obd1. You might get lucky and find an obd2 distributor from an F or H series motor that you can make work on the f22a head. After that you'll have to find an ecu for an obd2 non-vtec f22b or f23a(not sure if any f23a were non-vtec).

After all that you're left with something that's untuned and has an improper basemap, a 2.2 liter cam in a 2.3 engine it wasn't made to work with, and that'll screw up your emission/give you a check engine light for sure.

At that point you definitely need a custom cam, I don't think even Bisimoto makes an off the shelf cam for a f22a head/f23 bottom combo, but pretty sure he'd know what would be required. Then you'll be limited to a piggy back system for tuning since you have to keep your obd2 ecu in tact.

 

damn i hate NY state. so i cant run a tuned ecu and then swap it out for the stock ecu when it comes inspection time? the f22 head is deff outta the question. ill just stick with the ported f23 head because i cant put a diff engine in my car because it needs to stay obd2 for inspection

 

You can't run a tuned/chipped ecu either which way, there's no such thing with obd2. You're gonna have to run your stock ecu with a piggy back system if you want to tune it, but I can't tell you anything about wether or not that's gonna be fine for emissions when tuned. You're gonna have to keep all the stock sensors in tact so there's no check engine light.

Find a tuner, see what he says about running piggy backs such as the Greddy Emanage or AEM FIC for example.

 

yeah i think a AEM EMS is a little overkill

 

i am close to buying a AEM FIC to piggyback my OBD2 ecu. i have been told i can use this for my NA setup but after reading into it more alot more people are using it fore boost and not all motor. will this setup be ok to run on an all motor engine after i get it tuned?

 

I can't see any problem using it for an all motor setup. Think of it this way, with boosted motors it's wiser to use more precise/reliable tuning. If guys are using the FIC for boosted motors, it should be just as good for an all motor setup. The name says it all, FIC, fuel/ignition control. Tuning is the adjustment of fuel and ignition maps wether it be boosted or all motor. Ask the guys at AEM or start a thread in the engine management and tuning forum. https://honda-tech.com/forums/engine-management-tuning-124/