rocketfuelcerx

okay will using the p72 unchipped/stock make the H22 run correctly, or should I have my stock 90 accord ecu chipped to h22 specs?

Hybrid96EK

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rocketfuelcerx &raquo;</TD></TR><TR><TD CLASS="quote">okay will using the p72 unchipped/stock make the H22 run correctly, or should I have my stock 90 accord ecu chipped to h22 specs?</TD></TR></TABLE>

Accord ECU chipped to H22 specs would be a better option. I would not roll around on the stock P72. Rather large difference in the fuel needs of a 1.8 compared to a 2.2. Not to mention the injectors are larger on the H22's then they are on the B18C1's... The P72 will be mapped for the smaller injectors, not the larger ones found in the H22's... Just overall not a good option to use the P72.

HavokB18

if you have a p72 use it so you can utilize your IAB's

H22A_civic

P72 on a H22 (STOCK) will make your car run rich.

Katman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by H22A_civic &raquo;</TD></TR><TR><TD CLASS="quote">P72 on a H22 (STOCK) will make your car run rich. </TD></TR></TABLE>

I agree...but its not a bad thing!

I have a customer who is performing some ecu dyno tests on H22 engines for me right now. He dynoed a US P72 vs. JDM P13 ecu on his slightly modded (I/HE) H22 engine and it showed about 4-5h/tq gain gains/losses in the powerband:

P13 172.83whp/144.50tq (14.5+
P72 168.72whp/139.83tq at ~6800rpmsWHP/5400rpmsTQ

The P72 A/F was running 14:1 where the P13 was running 14.5:1+.

The P72 has potential once I customize a P72 program that dumps more fuel. This will be happening soon...

So in temporary conclusion -- go ahead and run teh P72 ecu if you don't have access to a P13 ecu.

locash

You do need more than fuel there, big buddy.. The timing maps aren't anywhere near the same.. Its not all that difficult to make a p72 run the p13 well, all you need is the right maps/info and a dyno with wideband to verify the work.. I have all of that here, just need an h22a car to play with..

Of course, Neptune helps too..

v4lu3s

on sunday i decided to put a wideband on my h22a with the p72 and saw 15:1 to 20:1 a/f under 3k rpm and part throttle. i decided i wouldnt do that again.

Hybrid96EK

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by v4lu3s &raquo;</TD></TR><TR><TD CLASS="quote">on sunday i decided to put a wideband on my h22a with the p72 and saw 15:1 to 20:1 a/f under 3k rpm and part throttle. i decided i wouldnt do that again.</TD></TR></TABLE>

Doesn't sound too good. 20:1 is pretty damn lean.

RotiEatter

iTrader: (1)

Don't waste your time and money on a P72.....just buy my P13 and run it.

It's meant for your motor, why run the improper one?

v4lu3s

cause the p28 i run is solidly at 13.8:1 across the board, has no egr to mess with, has a lot more programmability.

plus on a similar program i ran a 13.7@99.96 on 17s with my hatch, and one of my customers ran a 13.4@100+ with a similar setup as far as bolt ons....

Katman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RotiEatter &raquo;</TD></TR><TR><TD CLASS="quote">Don't waste your time and money on a P72.....just buy my P13 and run it.

It's meant for your motor, why run the improper one? </TD></TR></TABLE>


true...
and have it reprogrammed by me using a JDM Spoon program

Hybrid96EK

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by v4lu3s &raquo;</TD></TR><TR><TD CLASS="quote">cause the p28 i run is solidly at 13.8:1 across the board, has no egr to mess with, has a lot more programmability.

plus on a similar program i ran a 13.7@99.96 on 17s with my hatch, and one of my customers ran a 13.4@100+ with a similar setup as far as bolt ons....</TD></TR></TABLE>

The EGR isn't really even into play once you chip the damn thing anyways. So what kind of arguement is that? Its still on the manifold if you really want to get down to it. There are more programs out there for a P28/P72, I'll give you that. Thats ONE advantage to ditching the P13.. That will soon change though, so its not much of an arguement.

13.4 @ 100mph? Damn, I must be worse off then I thought in traction.

v4lu3s

the egr still comes in to play with a chipped p13.
and the arguement is that running a p28 is simpler than messing with a p13.

Hybrid96EK

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by v4lu3s &raquo;</TD></TR><TR><TD CLASS="quote">the egr still comes in to play with a chipped p13.
and the arguement is that running a p28 is simpler than messing with a p13.</TD></TR></TABLE>

Even if it did, why would it matter? Unplug it, be done. Who cares? P28 can't read knock sensor either. So while it might be "simpler" its lacking features some might want that a P13 will support.

v4lu3s

whqat the hell are you trying ot argue? did you not see the guy that i posted right after who was trying to say a p13 was better?

RIGHT NOW, at this VERY MOMENT, the p13 does NOT supprt **** for most people.

Hybrid96EK

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by v4lu3s &raquo;</TD></TR><TR><TD CLASS="quote">whqat the hell are you trying ot argue? did you not see the guy that i posted right after who was trying to say a p13 was better?

RIGHT NOW, at this VERY MOMENT, the p13 does NOT supprt **** for most people.</TD></TR></TABLE>

I'm not really "arguing" I was just trying to point out some things that people who read this might want to know..

Its rather retarded to argue about how your chipped P28 was supperior based on track times also. Thats comparing apples to oranges, so if you REALLY want to cook up an arguement on that, i'm game.

There are programs out there for a P13, you can edit them just like you can a P28 program as well. So with this in mind, why couldn't you take a P13 base program, stick it on a wideband and tune it? Sounds to me like you would get the same results as rushing out to buy the infamous P28. I guess most people like the variety of "programs" out there based on the P28 code. Problem in my eyes is that no one program is going to work wonders on all setups. Most of those "programs" still require tunning because they either run shitty ignition maps, or WAY too much fuel. So you still wind up in the same boat and you still need to stick it on a wideband/dyno to customize it to your engine. So, why not do it the right way to begin with? With that said, my point is there is no real "advantage" to jumping on the P28 bandwagon. Tune a base map for the P13, wind up with the same results on the dyno and at the track. And, if you need to pass visial on smog inspection, you still have the correct ECU for the engine you are running. Makes more sense to me, wouldn't you agree?

Turbogixxer

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Katman &raquo;</TD></TR><TR><TD CLASS="quote">The P72 A/F was running 14:1 where the P13 was running 14.5:1+. </TD></TR></TABLE>

What was the fuel pressure at? I was playing with a stock P13 with my wideband. The a/f was like 12.5-11.4 at WOT. This was with stock civic fuel pump and stock h22a FPR.

The P13 made more power because the timing is better. The difference in a tuned stock gsr map and a tuned stock h22a map is about 5*.

Kidnkorner

i think the below hyperlink will help you out. its clear to see whats going on.
red line P72 ECU
Blue line H22 ECU
http://www.importreview.com/re....html




Modified by Huggy Bear at 7:27 AM 4/10/2005