Am I safe?? What do I set fuel regulator at?? (long)
01-20-03, 04:59 PM
#1
Rotary Freak
Thread Starter
Am I safe?? What do I set fuel regulator at?? (long)
OK heres the deal.
1987 Turbo 2
Mods on car when dynoed (and tuned) 10 months ago:
RB turbo back exhaust
RB FCD
Apexi SAFC
Walbro fuel pump rewired (switching 10v/14v)
S5 turbo with upgraded compressor (T3 "super" 60)
Stock emmisions and paper filter (stock intake)
At this point the car pulled 203 HP at 6psi of boost, and never had boost creep. When tuned, safc setting were tentitivly negative:
3000: 0% 4000: -4% 5000: -7% 6000: -9% 7000: -10% 8000: -11%
The car ran on this for about 7k miles so it was adequately enough fuel and I did things right.
Now I got tired of being so slow, so I stepped the RX7 project to the next level with these mods:
Rewired Walbro to run constant 14.4 volts.
GSLSE secondary injectors 680cc rated (flowed 760cc)
Cleaned 2x550 and 2x760cc
Greddy Front mount intercooler
Custom 3" intake with HUGE k&n filter
Aeromotive RRFPR with a paralell fuel rail mod running 6AM line
The line is only under the hood, doesnt run all the way back to the tank (yet).
The car boost crept to 15psi so I ported the S5 turbine housing, now it runs about 10-13psi depending on temp.
If I would have to guess power at this point, I would say somewhere between 230-260 at the rear wheels.
Who thinks Im safe, who thinks Im not?
What pressure should I run the regulator at? Right now I have it at 40psi when I detach the vac line.
1987 Turbo 2
Mods on car when dynoed (and tuned) 10 months ago:
RB turbo back exhaust
RB FCD
Apexi SAFC
Walbro fuel pump rewired (switching 10v/14v)
S5 turbo with upgraded compressor (T3 "super" 60)
Stock emmisions and paper filter (stock intake)
At this point the car pulled 203 HP at 6psi of boost, and never had boost creep. When tuned, safc setting were tentitivly negative:
3000: 0% 4000: -4% 5000: -7% 6000: -9% 7000: -10% 8000: -11%
The car ran on this for about 7k miles so it was adequately enough fuel and I did things right.
Now I got tired of being so slow, so I stepped the RX7 project to the next level with these mods:
Rewired Walbro to run constant 14.4 volts.
GSLSE secondary injectors 680cc rated (flowed 760cc)
Cleaned 2x550 and 2x760cc
Greddy Front mount intercooler
Custom 3" intake with HUGE k&n filter
Aeromotive RRFPR with a paralell fuel rail mod running 6AM line
The line is only under the hood, doesnt run all the way back to the tank (yet).
The car boost crept to 15psi so I ported the S5 turbine housing, now it runs about 10-13psi depending on temp.
If I would have to guess power at this point, I would say somewhere between 230-260 at the rear wheels.
Who thinks Im safe, who thinks Im not?
What pressure should I run the regulator at? Right now I have it at 40psi when I detach the vac line.
01-20-03, 07:50 PM
#4
Rotary Freak
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Im running the stock fuel pressure on my car without any sign of it running lean. I would say as long as you are not running out of fuel and you have your AFC pumping enough fuel in to your engine with those bigger injectors there is no need to raise the pressure. I would get it checked with a WB to be safe that way you will know where you stand with your fuel. Keep your ears open under full throttle for signs of detonation.
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