But wait there's hope! *Dyno Content*
10-12-2012, 07:38 AM
#11
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10-18-2012, 08:32 AM
#12
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Update:
Car is partially tuned, fuel pump is giving out, fuel pressure is dropping during the pull to bellow 28psi. Partially tuned, letting off at just over 5000 it put down 296whp and somewhere between 320-330wtq. Torque reading on the dyno was wacky. Fixing to pick up another walbro 255 to finish the pull.
Car is partially tuned, fuel pump is giving out, fuel pressure is dropping during the pull to bellow 28psi. Partially tuned, letting off at just over 5000 it put down 296whp and somewhere between 320-330wtq. Torque reading on the dyno was wacky. Fixing to pick up another walbro 255 to finish the pull.
11-01-2012, 09:29 AM
#13
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Update: put the 255 pump and new filter. Put the car on the dyno yesterday and put down 241/291 letting off at 4500. Brought the fuel pressure a bit down ( originally we were trying to tune around a bad pump without knowing), put down 281/302, AFRs at 10:1. Pulled a bit more (42psi), put down 294/305 letting off at 5400 with AFRs at 10.5:1. Tuner is going by the shop today to pull fuel via the tune since the shop owner doesn't want to continue backing down pressure since its making little difference on AFR. So yea, I went from full lean to having more fuel than I can burn lol! Final numbers tonight or tomorrow morning.
11-01-2012, 12:02 PM
#14
D.R. THE PATHETIC DORK
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good deal^^^^^ most people don't understand the eec iv strategy for fuel correction in closed loop operation, by adding more fp the ecm sees such and detects a rich condition and thus tries to lean it out, IIRC the eec iv has roughly a +/- 11-13 percent correction factor it can compensate for........as for open loop/WOT your tuner has it right to do that via chip....good luck with the numbers!! 
11-01-2012, 08:22 PM
#16
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Ok guys, final numbers are in, 310/322 (although the torque reading is a little funky and the shop owner is not sure why). Car pulls great! Anyone know what RPM in 4th does 125mph convert to? It's got 3.55s and a promotion WC T5.
11-02-2012, 09:06 PM
#18
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I think someone in another forum said it was 25.7 or something like that, said peak power is calculated to be at 5800rpm. Whenever I swing by the shop I'll have the guy change the screen to RPMs to double check.
11-03-2012, 11:05 PM
#19
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Update:
Car is partially tuned, fuel pump is giving out, fuel pressure is dropping during the pull to bellow 28psi. Partially tuned, letting off at just over 5000 it put down 296whp and somewhere between 320-330wtq. Torque reading on the dyno was wacky. Fixing to pick up another walbro 255 to finish the pull.
Car is partially tuned, fuel pump is giving out, fuel pressure is dropping during the pull to bellow 28psi. Partially tuned, letting off at just over 5000 it put down 296whp and somewhere between 320-330wtq. Torque reading on the dyno was wacky. Fixing to pick up another walbro 255 to finish the pull.
Just from an old carb guy........
