Jason kiDD

Well I must say after driving around with the stock p28 ECU it really feels nice. Vtec comes in nice and smooth and the car just rips throughout the whole RPM band.. No lag that you experience with the p13 around 4 to 5k due to the secondaries..

Is it only in my head, maybe. Hopefully I can get to a dyno and see exactly what my numbers are..

Just sharing my two cents.. And I hope to be installing the VAFC soon to extract any more ponies if possible..

junglerunna

What codes does the P28 look for opposed to the P13?

Jason kiDD

Just about the same things since they are both ODB I computers. However it doesnt control the IAB's, & EGR..

I dont know if I have a weird ECU though, because most people I hear say they run like ****..

lol It runs better than the chip I had installed from AG Engineering, although the chip had much more advanced timing up top..

hondaZvic

so are u saying secondaries are bad? i thought they were a good thing?.

**confused**

Jason kiDD

lol Not at all.

They do serve a purpose in adding low end torque. But to me in a Civic its a mute point anyways. But I am biased because my p13 ECu is not functinal anymore.. I do have the IABs hooked up via vacumn so although they do not open via computer signal they do work semi well via vacumn for good results..

Katman

Right now (in its stock form), it's running to lean for an H22 engine; you should really have that stock P28 reprogrammed with at least some kind of B-series program (mugen suggested).

Jason kiDD

I dunno how to explain it. And I dont know if its just a funky combination of parts that I have..

98 JDM Type S engine
Fuel set to 42psi.. Anything lower and the car pulls hard but I can tell its lean
Walbro pump in tank
290cc saturated injectors..
MSD digital 6
Slightly advanced timing..
AEM ITR intake

I tell you this is the best the car has felt since putting in the chipped p28.. And even than program had horrible lag between 4.7k to 5.5k on the RPM band.

With this ECU everything is smooth as silk...

Katman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jason kiDD &raquo;</TD></TR><TR><TD CLASS="quote">
I tell you this is the best the car has felt since putting in the chipped p28.. And even than program had horrible lag between 4.7k to 5.5k on the RPM band.

With this ECU everything is smooth as silk...</TD></TR></TABLE>

perhaps that was a crappy program to begin with?

Jason kiDD

Very tru but as you know h22 programs are hard to come by.. And my engine setup is a little different than a normal h22..

Katman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jason kiDD &raquo;</TD></TR><TR><TD CLASS="quote">Very tru but as you know h22 programs are hard to come by.. And my engine setup is a little different than a normal h22..</TD></TR></TABLE>

oh no.. I meant have the P28 reprogrammed with at leat a B-series program (mugen suggested) as opposed to having the stock P28 programming. There's really no modified program for the P28 ecu + h22 engine just yet....although I think Newman claimed to have one he customized.

Jason kiDD

Been there. Most programs that I tried although they felt OKAY still didnt have the kick of the p28/h22 program nor stock p28 that i have now.. Remember b series engines are setup different especially the GSR which is probably our most close cousin with vtec first then secondaries after...

They would always pull hard but that is only after like 6k RPMs.
I would love to take you for a drive but I see you on the other side of town..

And Newman has been talking about a map for the h22 but I know its more detailed that it seems..

Newman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Katman &raquo;</TD></TR><TR><TD CLASS="quote">
There's really no modified program for the P28 ecu + h22 engine just yet....although I think Newman claimed to have one he customized.</TD></TR></TABLE>

We have one... still working on a few things but basically making it the same setup as what I'm currently running for my Hondata S200 P28, using the base Type S settings and some changes to the fuel curves. I'd say it's "decent" for the P28 and works better than the Mugen B-series program on our H22 cars here, that's for sure, but still not as good as a Spoon P13 program or a true Type S setting in a P28.

junglerunna

So I guess in the end, a stock P28 isn't the best computer to run then?

Katman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by junglerunna02 &raquo;</TD></TR><TR><TD CLASS="quote">So I guess in the end, a stock P28 isn't the best computer to run then?</TD></TR></TABLE>

correct, but it is definitely an optional ecu to use with the H22 engine if you don't have access to a genuine prelude (P13 or P5M) ecu. A GSR/P72 ecu is another optional ecu thats good to use since it can control the 2ndary butterflies.

Jason kiDD

Not for the cost. You lose probably 2ft torque with the secondaries totally disabled down low. So using the GSR ECU wont give you any specific advantage..

And jungle.. They having a meet on Oct 18.. If we meet up there or even after then I will let you drive the car and you decide..

poison

That's very odd. I am glad to see your car is running very strong. But I ran on a stock P28 for a few days and that thing was leaning out like a bitch.

I can understand with a V-AFC and stock P28 program would run decent, but seems to me like it's running lean still with just a stock P28 program...

The P72 over a stock P13 actually performs less during mid-range, but on top, it provides more HP.



Source: http://www.importreview.com/re....html

Katman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jason kiDD &raquo;</TD></TR><TR><TD CLASS="quote">Not for the cost. You lose probably 2ft torque with the secondaries totally disabled down low. So using the GSR ECU wont give you any specific advantage..
</TD></TR></TABLE>

This discussion reminds of when people use a reprogrammed P28 ecu w/a GSR engine (w/GSR IM). Since some people like to do this, to remedy the butterflies, the VTEC crossover point is raised to about 5300rpm and it pretty much fixes the torque loss of the disabled 2ndary's.

I'm not sure if you played with VTEC crossover points with your motor setup & P28 ecu, but its definitely something to test out & look into...

junglerunna

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jason kiDD &raquo;</TD></TR><TR><TD CLASS="quote">
And jungle.. They having a meet on Oct 18.. If we meet up there or even after then I will let you drive the car and you decide.. </TD></TR></TABLE>

Cool man, but wheres the meet at?

hondaeg5

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by junglerunna02 &raquo;</TD></TR><TR><TD CLASS="quote">

Cool man, but wheres the meet at?</TD></TR></TABLE>

yea! i wanna see how eveyones car is coming along

fastwanabe

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaeg5 &raquo;</TD></TR><TR><TD CLASS="quote">

yea! i wanna see how eveyones car is coming along </TD></TR></TABLE>man... theres a meet and I wasnt even invited.... where is this meet?

hondaZvic

hey, ill throw a meet here in west texas.. can be at my house. have a BBQ, drink some and race up and down the street... oh ya.. and that'll make one good road trip for all of you. hehehe


sooooo...... back to the subject, which would be the best ecu/program/whatever to run on an h22 civic?

Jason kiDD

https://honda-tech.com/zerothread?id=631229

Details there..

JDMH22HATCH

iTrader: (6)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hondaZvic &raquo;</TD></TR><TR><TD CLASS="quote">hey, ill throw a meet here in west texas.. can be at my house. have a BBQ, drink some and race up and down the street... oh ya.. and that'll make one good road trip for all of you. hehehe


sooooo...... back to the subject, which would be the best ecu/program/whatever to run on an h22 civic?</TD></TR></TABLE>

I'm down, or you guys can come to DFW . But on another note, I love the P28. I have no clue the program, but it pulls hard as a ****.

hondaZvic

sweeet!!!... more people are prolly familiar w/ DFW than lubbock. im up for it!!!!!!!

BlackJDMdeath

i ran a p28 on my h22a and it was just too lean, burns too hot, you will **** stuff up over time.