Is throwing a CEL from too much fuel or not enough?
09-15-2003, 10:40 AM
#32
1.0 BAR
Thread Starter
Join Date: May 2003
Posts: 200
Re:Is throwing a CEL from too much fuel or not enough?
I am getting very little detonation at 10psi, I mean very little; but I don't think there is anything I can do about it.
I tried richening the AFC and I just started loosing power. I adjusted fuel pressure higher and I lost power again. I know boost is not equal with turbos and yes you guys maybe running 14psi on T25's or IHI turbo but the turbo setup I am running is making a lot more power than what the AFC can tune out.
I am scared that anymore boost may blow the engine. Yes you guys say Bseries are good to 12psi but thats quotes on a 14b,T3, or a small T3/T4. Jeff didn't blow his engine running 28psi or something crazy, it was built and he still blew it with moderate boost 14psi with a standalone fuel manangement system.
I think I have met the power limits of the SAFC2. Yeah I could up the boost and richen it up more but I won't be making efficient power...meaning I would be making crazy power at the expense of detonation that only the fine tunning of a standalone fuel management system can provide.
I tried richening the AFC and I just started loosing power. I adjusted fuel pressure higher and I lost power again. I know boost is not equal with turbos and yes you guys maybe running 14psi on T25's or IHI turbo but the turbo setup I am running is making a lot more power than what the AFC can tune out.
I am scared that anymore boost may blow the engine. Yes you guys say Bseries are good to 12psi but thats quotes on a 14b,T3, or a small T3/T4. Jeff didn't blow his engine running 28psi or something crazy, it was built and he still blew it with moderate boost 14psi with a standalone fuel manangement system.
I think I have met the power limits of the SAFC2. Yeah I could up the boost and richen it up more but I won't be making efficient power...meaning I would be making crazy power at the expense of detonation that only the fine tunning of a standalone fuel management system can provide.
09-15-2003, 11:12 AM
#33
Guest
Posts: n/a
Re:Is throwing a CEL from too much fuel or not enough?
a few things: any detonation is too much, you are going to lose a little power when your richen it up for the most part, and jeffs motor wasnt built
there is no way you've "met the power limits of the safc2"...turn your fuel pressure down, and richen up your afc settings like everyone is telling you to...also, play with your timing to get rid of the detonation as well
there is no way you've "met the power limits of the safc2"...turn your fuel pressure down, and richen up your afc settings like everyone is telling you to...also, play with your timing to get rid of the detonation as well
09-15-2003, 11:44 AM
#34
1.0 BAR
Thread Starter
Join Date: May 2003
Posts: 200
Re:Is throwing a CEL from too much fuel or not enough?
I am going to have to try that. 
It's just that I loose power and it starts running shity when I richen up the AFC. When I richen the AFC the cars loads up with fuel and sputters from the injectors loading up, thus making the power ruff and not smooth.
It's still running a little fat because when I let off the gas sometimes I get a 6ft flame coming out of the downpipe. And I can here it pop sometimes when cruizing from getting too much gas. I just need to get it put on a dyno so I can know for sure how I am running because trying to tune with the butt dyno and an EGT is not really efficient.
There is probably plenty more power achievable but I don't have a wideband to help me tune. The blue wire mod sucks *** because it shows wrong O2 sensor volts and will have you running waaaaaaay too rich. And the Air fuel ratio gauge is worthless because it just bounces back and forth and then cuts off.
It's just that I loose power and it starts running shity when I richen up the AFC. When I richen the AFC the cars loads up with fuel and sputters from the injectors loading up, thus making the power ruff and not smooth. It's still running a little fat because when I let off the gas sometimes I get a 6ft flame coming out of the downpipe. And I can here it pop sometimes when cruizing from getting too much gas. I just need to get it put on a dyno so I can know for sure how I am running because trying to tune with the butt dyno and an EGT is not really efficient.
There is probably plenty more power achievable but I don't have a wideband to help me tune. The blue wire mod sucks *** because it shows wrong O2 sensor volts and will have you running waaaaaaay too rich. And the Air fuel ratio gauge is worthless because it just bounces back and forth and then cuts off.
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