Comptech FPR adjustment.

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Sep 11, 2005 | 12:26 AM

#11

S2000_Europe

Joined: Jan 2003

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From: MIAMI

Quote:

Originally Posted by mark_m,Sep 11 2005, 02:32 AM

Once it gets into v-tec it does drop lower, you think I should add more fuel?

Maybe tomorrow I'll do some on road runs and data log them.

do a data log to get A/F numbers if you can find a empty road. to comfirm your numbers

Sep 11, 2005 | 01:01 AM

#12

markS2kcU

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Joined: May 2004

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From: Suffolk

Quote:

Originally Posted by S2000_Europe,Sep 11 2005, 09:23 AM

Mark just multiply the numbers by 0.82 and would get an aproximation to wheel numbers.

Dyno shop should have the numbers because dyno measures numbers at the wheels and convert them crank numbers

This was the first dyno run I had there back in January.

The bottom line is loss through drag which was 38hp not quite as much loss as the 0.82 method

Will get some more A/F numbers soon when I find a nice private road.

Sep 12, 2005 | 02:16 PM

#13

Member

Joined: Apr 2004

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From: Sunshine Coast - England UK

mark, did you find the Comptech box wasn't giving the desired AFR out the box? I would have thought it should be reasonable accurate, unless your breathing mods are leaning things a little?

PS - most dyno's calculate the drivetrain loss (power absorbed by the gearbox / axels / diff etc, on the run down after the power run. Its easy for the dyno to calculate when its free wheeling.

MB

Sep 12, 2005 | 02:37 PM

#14

markS2kcU

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From: Suffolk

Yeah I think it might be that spoon TB giving me a little grief, I'm sure I saw 12.0 on my gauge tonight at full chat but with little numbers on the gauge and going quick and trying to keeping an eye out for plod its hard to really say.

I'll get the lappy in it tomorrow night if its nice and log some runs.

Not sure where the FPR was set at as the kit was 2nd hand.