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GSR motor + P28 ecu + Fields VAFC question

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Old Apr 14, 2004 | 08:53 PM
  #1  
hadehatch's Avatar
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Default GSR motor + P28 ecu + Fields VAFC question

OK guys I have a few questions about my setup.. First of all how adiquate/inadiquate is the stock p28 fuel map for my stock GSR motor?

Im thinking that the p28 map would have the b18c1 running too lean at higher rpms.. correct me if im wrong..

and what can I do with a Fields VAFC and a narrowband AF gauge to smooth out the powerband a little.. generally just to get the engine to run a bit better without any risks of leaning out at any rpm..

so far i changed the vtec engagement point from 5000(?) or so to 4500 (stock gsr) and I noticed the engagement is smoother and less noticable...

If anyone that knows what they are talking about can answer my questions I would greatly appreicate it! Thanks in advance!
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Old Apr 14, 2004 | 09:48 PM
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Default Re: GSR motor + P28 ecu + Fields VAFC question (hadehatch)

the p28 will run a little leaner up top than the gs-r ecu. also the narrowband A/F ratio's suck. they are never accurate enough to tune with. i have street tuned cars to a perfect 14.7:1 air/fuel ratio and the autometer guage always stays rich no matter what the driving condition.
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Old Apr 16, 2004 | 06:08 AM
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Default Re: GSR motor + P28 ecu + Fields VAFC question (Broken Vtec)

Thanks for the reply.. so basically I shouldn't touch anything without a wideband o2 and a dyno right?

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Old Apr 16, 2004 | 11:46 AM
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Default Re: GSR motor + P28 ecu + Fields VAFC question (hadehatch)

why dont you just have the p28 chipped and run a dohc vtec program?
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Old Apr 16, 2004 | 11:57 AM
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Default Re: GSR motor + P28 ecu + Fields VAFC question (hadehatch)

Gsr computers tend to retard timing and dump alot of fuel during vtec crossover. the p28 leans out a little up top due to pressurized injector hold
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Old Apr 16, 2004 | 05:23 PM
  #6  
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Default Re: GSR motor + P28 ecu + Fields VAFC question (iH8RICERZ)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by iH8RICERZ &raquo;</TD></TR><TR><TD CLASS="quote">why dont you just have the p28 chipped and run a dohc vtec program? </TD></TR></TABLE>

well I am trying to use the AFC to do the same thing a chipped ecu would do.. I would rather not use a premade chip since it will be obsolete when I do my motor build...

Ok I figured the p28 would run a bit lean up top.. Anyone know what I can do to "fix" this with my AFC? I dont really have an idea of how much fuel is being dumped in and how 5%(10%,15%,30% etc..) more/less fuel affects the engine..

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Old Apr 16, 2004 | 08:04 PM
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FastAllmotorLsVtec
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Default Re: GSR motor + P28 ecu + Fields VAFC question (hadehatch)

what about p28 ecu skunk chipped on a b18c5?
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Old Apr 16, 2004 | 08:06 PM
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Default

hopefully you do get the P28 chipped. If you are runnign the stock intake manifold, the secondary intakr runners/butterflies will remain open.
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Old Apr 16, 2004 | 08:13 PM
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FastAllmotorLsVtec
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Default Re: (hatchy92)

everything in my sig i am putting in my b18c5
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Old Apr 17, 2004 | 10:00 AM
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Default Re: GSR motor + P28 ecu + Fields VAFC question (CrxStreetRacer)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CrxStreetRacer &raquo;</TD></TR><TR><TD CLASS="quote">what about p28 ecu skunk chipped on a b18c5?</TD></TR></TABLE>'

what about you dont hijack my thread and start your own.. and what about a p28 chip and b18c5?? I dont believe in using a premade program since every motor build is different.. Id rather save up for a Hondata system and get it tuned...

BUT back to my original and simple question... Without getting my ecu chipped how effective can the AFC controller be in correcting the fuel map to better suppliment the b18c1??

If you can't answer or have nothing intelligent to add please stay out of this thread.. I'm looking for answers from people who have experience with one of these "hack" air fuel controllers.. thank you
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Old Apr 17, 2004 | 03:25 PM
  #11  
FastAllmotorLsVtec
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Default Re: GSR motor + P28 ecu + Fields VAFC question (hadehatch)

i am not stealing your thread dumass i didnt want to start a new one for a simple question jackass!
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Old Apr 18, 2004 | 01:51 PM
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Default Re: GSR motor + P28 ecu + Fields VAFC question (CrxStreetRacer)

LMFAO seems like hadehatch got owned, but **** you cali guys anyway i'll stand up for my NY peeps, bitch. Go start your own thread, ***!
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Old Apr 18, 2004 | 03:22 PM
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Default Re: GSR motor + P28 ecu + Fields VAFC question

lol yea this guy definately owned me.. btw your question was horrible... thanks for bringing this thread down to your retarded level..

somehow my threads dont get any intelligent responses.. only idiots that post irrelivant questions...

since this thread has gone down the drain ill use this space to shout out NY honda-techers! lol

oh yea CrxStreetRacer &lt;-- lol next time read before you post...
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hadehatch &raquo;</TD></TR><TR><TD CLASS="quote">
If anyone that knows what they are talking about can answer my questions I would greatly appreicate it!</TD></TR></TABLE>

not

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hadehatch &raquo;</TD></TR><TR><TD CLASS="quote">
Whoever wants to ask their own question completely irrelivant to my topic please feel free to post whatever you want. </TD></TR></TABLE>
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