JRSC FUEL HELP...
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Honda-Tech Member
Joined: Jun 2003
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From: ca, USA
JRSC FUEL HELP...
Heres my setup first:
GSR with a 6 PSI JRSC
SRT Intake with Apexi filter
JR upgrade fuel pump (Walboro one)
Colder NGK plugs
JR boost timing controller
Stock headers/ exhaust
I had it dynoed tuned again recently but stilll having issues with the A/F ratio being around 13.5 : 1 ... I know I need to be around 12:1 but what can I do right now to make that happend???
I was thinking of upgrading my injectors to some bigger ones but I am a bit confuse on saturated ..etc.... so which injectors should I get for my application?
Secondly I am planning to get a Cartech FMU ..... let me know what you guys think .. thx
GSR with a 6 PSI JRSC
SRT Intake with Apexi filter
JR upgrade fuel pump (Walboro one)
Colder NGK plugs
JR boost timing controller
Stock headers/ exhaust
I had it dynoed tuned again recently but stilll having issues with the A/F ratio being around 13.5 : 1 ... I know I need to be around 12:1 but what can I do right now to make that happend???
I was thinking of upgrading my injectors to some bigger ones but I am a bit confuse on saturated ..etc.... so which injectors should I get for my application?
Secondly I am planning to get a Cartech FMU ..... let me know what you guys think .. thx
Honda-Tech Member
Joined: Apr 2003
Posts: 9,051
Likes: 1
From: Bay Area, CA
errr, how did you have it dyno tuned ?
what kind of fuel management are you running?
you cant "TUNE" an fmu, it pumps in a certain ammount of fuel per lb of boost it sees.
you need to get yourself some bigger injectors,
then an a/f controller of some sort.
what kind of fuel management are you running?
you cant "TUNE" an fmu, it pumps in a certain ammount of fuel per lb of boost it sees.
you need to get yourself some bigger injectors,
then an a/f controller of some sort.
Honda-Tech Member
Joined: Apr 2003
Posts: 9,051
Likes: 1
From: Bay Area, CA
Re: (Ringbearer020)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Ringbearer020 »</TD></TR><TR><TD CLASS="quote">so would a Vortech FMU or cartech fmu help?</TD></TR></TABLE>
dude they're all fmu's
you can get one with a higher rated disk and it'll pump more fuel in there.
but I wouldnt waste my money on getting ANOTHER fmu,
get some real fuel managemetn.
dude they're all fmu's
you can get one with a higher rated disk and it'll pump more fuel in there.
but I wouldnt waste my money on getting ANOTHER fmu,
get some real fuel managemetn.
Honda-Tech Member
Joined: May 2001
Posts: 1,058
Likes: 0
From: somewhere in the valley,, BC.
Re: (Tad)
I agree with Tad.
An FMU is an easy way to change fuel rates, but the bottom line is that it's a static change. You change it for a lean condition at 4500rpm, and it richens up everything. Get yourself into Uberdata, or AEM, or Hondata (buy from the same shop that tunes!!!!!), and that will help a lot.
For injectors, Hondas like saturated injectors (low impedance). Some have had luck with DSM low impedance 450's, but I never did. RC is your best bet for a replacement set. Go with a 440 saturated if you want to run 12+psi, and a 370 if you want to run less than 10psi.
Other than that, if you want a cheap/easy way to bump your fuel, go with a B&M fuel pressure regulator and increase your static fuel pressure a few psi. Be sure to keep an eye on your plugs though, or else you could be too rich.
An FMU is an easy way to change fuel rates, but the bottom line is that it's a static change. You change it for a lean condition at 4500rpm, and it richens up everything. Get yourself into Uberdata, or AEM, or Hondata (buy from the same shop that tunes!!!!!), and that will help a lot.
For injectors, Hondas like saturated injectors (low impedance). Some have had luck with DSM low impedance 450's, but I never did. RC is your best bet for a replacement set. Go with a 440 saturated if you want to run 12+psi, and a 370 if you want to run less than 10psi.
Other than that, if you want a cheap/easy way to bump your fuel, go with a B&M fuel pressure regulator and increase your static fuel pressure a few psi. Be sure to keep an eye on your plugs though, or else you could be too rich.
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