Singles: What's your limiting factor?
12-15-07, 10:41 AM
#1
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Singles: What's your limiting factor?
Is your setup EGT/backpressure limited? RPM limited? Fuel volume limited? Cooling limited? Mechanically/housing strength limited?
What do you have, what's it making, and what do you think would have to change in order for you to make a larger torque curve over a larger RPM range?
What do you have, what's it making, and what do you think would have to change in order for you to make a larger torque curve over a larger RPM range?
12-16-07, 10:49 PM
#2
Savanna Rx-7
Mine is currently fuel limted.
92 series 5 13bt in a series 3 body
IHI RHC-7 (62-1) with a .89 open valute hotside (IHI model, not garret).
550 stock primaries
1000 sard secondaries
cosmo fuel pump
sard FPR
Apexi PFC w/datalogit
currently I am limited to .8 bar (in a straightline acceleration run, and not jack **** once I hit a curve)
she starts leaning out in the upper rpm ranges, hit 100% duty at about 7200 rpm and then wideband starts going lean soon thereafter.
I totally loses fuel pressure at 100m radius sweepers at the local track (during left hand turns only, right are not an issue)
I just finished building a surge tank and will be plumbing it in next weekend with a sard 280 pump and 1600 bosch injectors hopefully then I will become traction limited in the corners, and not fuel delivery limited
all the other factors you asked about are not an issue YET
kenn
92 series 5 13bt in a series 3 body
IHI RHC-7 (62-1) with a .89 open valute hotside (IHI model, not garret).
550 stock primaries
1000 sard secondaries
cosmo fuel pump
sard FPR
Apexi PFC w/datalogit
currently I am limited to .8 bar (in a straightline acceleration run, and not jack **** once I hit a curve)
she starts leaning out in the upper rpm ranges, hit 100% duty at about 7200 rpm and then wideband starts going lean soon thereafter. I totally loses fuel pressure at 100m radius sweepers at the local track (during left hand turns only, right are not an issue)
I just finished building a surge tank and will be plumbing it in next weekend with a sard 280 pump and 1600 bosch injectors hopefully then I will become traction limited in the corners, and not fuel delivery limited
all the other factors you asked about are not an issue YET
kenn
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