Anyone tried a p12 ecu in their accord?

[kingdave9]

Hi there,

I've been romaing around the forums about putting a Prelude S p12 Ecu in an accord.

I bought an accord 3 days ago and was thinking about swapping in my p12 ecu for the pt3.

(Both my Prelude S have an F22a1 engine, with the same IM/EM. But the Accord has 125hp while my Prelude has 135hp.)

I was hoping to get some feedback from anyone who has tried this first.

Thanks.

[NAiL05]

I think there is more that contributes to the a1 140hp rating. I thought thats what the prelude S was rated at but dunno.

[kingdave9]

The Prelude is rated at 135hp that I know for a fact.

The intake manifold and exhaust are the same. I've basically had both cars side by side and compared them.

The only difference appears to be the Ecu's.

I want to try it switching them, but I'm hoping for some feedback from anyone who has given it a shot.

[amd3dnow3]

uhmm, thats very interesting.lets hope someone has some answers

[quacky]

On the outside the f22a1 from the Prelude and Accord may appear to be the same, but it's the things on the inside that differentiates them. The Prelude probably has a better cam than the accord, maybe the intake has been slightly tuned for better performance, and i'm pretty sure the ecu has been altered (ie: increased timing) to take advantage of those things. If you have the means, try swapping out the ecus and judge for yourself.

[kingdave9]

Both the cams are the same. I'm not sure how they would tune the intake though...

I guess I might as well give it a go today and see what happens.

I will try to post my results today. I will know pretty quick whether or not I made any significant gains.

[kingdave9]

I just finished swapping the Ecu's.

First I drove my Prelude with the pt3. It wasn't a big difference but it seemed the low end tourque was lacking a bit. It was like drinking a diet coke.

Then I tried my Accord with the p12. It's not like I swapped a new motor, but I can definately feel a little more go, especially in the low end. Definately pulls a little harder off the line.

Overall you can definately feel the difference. I'm going to find a dyno in town and do a run with both Ecu's to see what I'm actually gaining.

[EXkidd91]

keep me updated as well I'd really like to know

[d112crzy]

I just finished swapping the Ecu's.

First I drove my Prelude with the pt3. It wasn't a big difference but it seemed the low end tourque was lacking a bit. It was like drinking a diet coke.

Then I tried my Accord with the p12. It's not like I swapped a new motor, but I can definately feel a little more go, especially in the low end. Definately pulls a little harder off the line.

Overall you can definately feel the difference. I'm going to find a dyno in town and do a run with both Ecu's to see what I'm actually gaining.

you should post or contact accord warrior about your findings.

[Shadow1]

i might try this. holla.

[amd3dnow3]

we need some roller results, thats 10 hp for just swaping ecu this is the next big thing.

[Shadow1]

^
^
i know right. i need to take a trip to the junk yard and find me one yo. lol

[handsoff012]

thats crazy idea but i like it, my friend chips ecu's , im see if u can get the chip settings for it so i can do that 2 my car

[InvaderTrax]

I've been telling people to do this for years, but do they listen? Sometimes :P

[Thomas_LX]

I've had the Prelude ECU for the past 7 months. I works great.... I bought it off a member. This has been known for a while....
Still not sure if/what there are any internal engine differences.