How to make 30+hp for $500 or less... (DX/LX F22A1 only)

[NAiL05]

the only thing i don't like about it is driving on the highway. 4000rpm's @ 80mph in 5th. later.

I hated that at first but I got used to it and still get close to 400 miles to a tank. But you would benefit more with those mods using a chipped p06 IMO and tuning it but thats if you have the extra cash instead of spending it on a pt6.

[TypeG]

if i could add to your list, one thing that is sometimes over looked on an f22 build is the transmission. in my opinion the car is more fun with the h23/h22 trans. it's somewhat of a night and day difference.

i have the h23 trans with the f22. i picked it up for $500 (i'm sure if you looked around, you could find it cheaper).

i'm pretty sure i could pull away from any regular accord with bolt-ons. the shorter gearing multiplies the engines torque. for the added acceleration, you loose top end.

the only thing i don't like about it is driving on the highway. 4000rpm's @ 80mph in 5th. later.

[quickangel93]

ebay header, ebay exhaust, rebuilt head, and an intake. and you'll be around 130-140 hp.

[Shadow1]

for the h23 intake manny? would you have to do some modification??

i dont think that you have to modify anything on the h23 intake manifold. you might have to switch a couple of sensors. but other than that its a direct bolt on.

[dark_stalker]

If you want to make power for little money... hit up a junkyard, or www.car-part.com

Look for:

F22A4 header - $15 (90-91 Accord EX)
F22A6 camshaft - $25 (92-93 Accord EX)
F22A6 ECU - $25
H23A1 intake manifold and throttle body (from a Prelude SI, 92-96 I believe) - $45
F22A6 IAB "black box" (to be able to activate the secondary runners, the intake air bypass, in the H23 manifold) - no price listed... probably $10 or so.

The prices are from my local junkyard, which is average for most things.


Your stock F22A1 engine's horsepower rating is at 125. The F22A6 parts alone will bring you to 140. The A4 header should get you to 145 (the ONLY difference between the A1 and A4 is the tubular header on the A4... which is superior to both the A1 and A6, which both have cast manifolds) The H23 intake manifold and plenum should add another 5hp or more... no exact figures are set for that.

If you do the camshaft, which isn't a HUGE part, but it helps, you're going to want to replace all the gaskets and seals you come across... good preventative maintenance anyway! That'll be another few bucks... but not a whole lot.

Get a cheap short ram intake. Have a muffler shop slap a 2.25" system for you.

The stock Honda parts would run about $120. A cheap short ram can be had for $50 or less. Exhaust... depends where you go. I paid $450 for new piping, cat, and muffler. You can probably get away with keeping your stock cat. Find a cheapie muffler on ebay, maybe a used one. Pay for piping and labor only. $200 at most for everything, I'd say.

So... that's under $400, and you can gain a minimum of 30hp... that doesn't include the intake and exhaust gains.





These things have been said over and over again... but I figured I'd make a post stressing just how simple things were!

for the h23 intake manny? would you have to do some modification??

[owequitit]

thanx for that Deev. ive always wondered about how much of a gain i would get just for swaping those on. so with a aftermarket headers, cat, exhaust, intake, and the h23 intake manifold you should be pushing about 150-155hp. and about 130-140whp right?

Your wheel HP numbers are hopefully optimistic IMO.

I would expect more like 120-130 WHP, IF those were ALL installed, and you had a healthy engine, and it is was in proper running order, i.e. all maintenance done, properly adjusted valves etc.

But considering a bone stock F22A1 would probably make somewhere around 95-100WHP, it is a VERY decent gain for the money. Even if it was only a 10WHP gain, it would STILL be a decent gain for the money.

Also, there have been some dynos floating around with numbers similar to what I mentioned above, and the list overall was similar. Some parts were more aggressive, some were less. I don't think 120-130WHP is unrealistic on a good healthy properly running motor.

[accordaffair]

Good idea for a thread, though to say it will definitely net you 30+ might be a little exaggerated, it is the best basic upgrades you can make be visiting a junkyard. Try to stick with OEM Honda whenever possible, and replace your gaskets.

[MadSpleen85]

Sticky material...

[thecrow7841]

HEY DEEVE

thanks for the help.
i always wonder about those things,
and not having to swap for an h.
thanks.

[Shadow1]

thanx for that Deev. ive always wondered about how much of a gain i would get just for swaping those on. so with a aftermarket headers, cat, exhaust, intake, and the h23 intake manifold you should be pushing about 150-155hp. and about 130-140whp right?

[deevergote]

If you want to make power for little money... hit up a junkyard, or www.car-part.com

Look for:

F22A4 header - $15 (90-91 Accord EX)
F22A6 camshaft - $25 (92-93 Accord EX)
F22A6 ECU - $25
H23A1 intake manifold and throttle body (from a Prelude SI, 92-96 I believe) - $45
F22A6 IAB "black box" (to be able to activate the secondary runners, the intake air bypass, in the H23 manifold) - no price listed... probably $10 or so.

The prices are from my local junkyard, which is average for most things.


Your stock F22A1 engine's horsepower rating is at 125. The F22A6 parts alone will bring you to 140. The A4 header should get you to 145 (the ONLY difference between the A1 and A4 is the tubular header on the A4... which is superior to both the A1 and A6, which both have cast manifolds) The H23 intake manifold and plenum should add another 5hp or more... no exact figures are set for that.

If you do the camshaft, which isn't a HUGE part, but it helps, you're going to want to replace all the gaskets and seals you come across... good preventative maintenance anyway! That'll be another few bucks... but not a whole lot.

Get a cheap short ram intake. Have a muffler shop slap a 2.25" system for you.

The stock Honda parts would run about $120. A cheap short ram can be had for $50 or less. Exhaust... depends where you go. I paid $450 for new piping, cat, and muffler. You can probably get away with keeping your stock cat. Find a cheapie muffler on ebay, maybe a used one. Pay for piping and labor only. $200 at most for everything, I'd say.

So... that's under $400, and you can gain a minimum of 30hp... that doesn't include the intake and exhaust gains.





These things have been said over and over again... but I figured I'd make a post stressing just how simple things were!