HP500EFI with premature detonation
#11
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Location: Fresno, CA, 93722, USA
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GEOO, depends on the engine, typically 11.5-12:1 under WOT. It's obvsiouly different at all loads, typically 13.5 range at idle and low loads, 13:1 during cruising no boost and tapers to 11.5-12:1 by the top. We use a true wide range sensor called a HEGO sensor, 6 wire, not the standard 5. This reads far more accuratly than the 5 wire and 4 wire that almost everybody uses.
Thanks,
Dustin
Thanks,
Dustin
#12
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Dustin,on the subject of just clearing things up,HEGO is just a generic acronym for Heated Exhaust Gas Oxygen sensor.What you are using is actually a WAF or Wide range Air Fuel ratio sensor.
You are however very correct in that it is a far more accurate design of exhaust gas monitoring device
You are however very correct in that it is a far more accurate design of exhaust gas monitoring device
#14
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F1campion, was it cylinder number 6? If it was, I know some tricks.
Also, TRUCKIN, the procedure for checking the timing on EFI engines is not done at RPM, but about 1200rpm with the computer in "service" mode to 8.25*. The timing at high rpm could be 40*+ advanced and you would not know wilthout a scan tool. This can give really poor performance.
Also, TRUCKIN, the procedure for checking the timing on EFI engines is not done at RPM, but about 1200rpm with the computer in "service" mode to 8.25*. The timing at high rpm could be 40*+ advanced and you would not know wilthout a scan tool. This can give really poor performance.
#15
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Jeg's shows the MSD rev limiters at $94 apiece. I'll take $135 for both of them. I think I got 5200 rpm chips for them but cant exactly remember (might be 5400). As I said, new in box, but they are somewhere in my storage trailer - that'll be fun...
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10-29-2002 07:35 PM