Mike,
Be sure it's absolutely level, recheck the procedure manual, and see if the
numbers are reproducible. I got a lower number than I would have expected,
but it was consistent. When I made changes to the timing I could easily see
differences in the HP output. I think that its best use is as a relative HP
measurement. Probably not what a chassis dyno would tell you, but a number
that can be of use for relative comparison. Since it computes HP based on
how quickly you change the velocity of an object of known weight, be sure
you push strongly into your cam range before shifting.
I'd be surprised if your retest numbers are the same. I got about 85 for a
turbocharged 1275 with the works, where I expected about 115. The main
thing is, it was consistent over three different test days with minor
variations for timing changes.. Try it again very carefully and see what
happens.
Glen Byrns
> Is this some sort of cruel April Fool's joke? Ok, got a 1380, balanced and
> blueprinted. Knifed crank. VP-7 cam. Oversized anti-reversion valves.
> Omega
> pistons. 9.8 to 1 compression. Roller rockers. Heads ported per Vizard.
> Intake
> per Vizard. SU carbs per Vizard. MSD ignition and coil. Headers. Dizzy
> advance
> calibrated. VP 101 fuel. Took her for a ride tonight. Very light wind,
> ambient temp 65 degrees. And I got 37 horsepower? Hell, lawn tractors
> have more
> than that. Quarter-mile stats were 19.49 secs at 69.7 mph. Car seems to
> run
> strong, can beat most anyone off the line. The only questionable variable
> was
> car weight. I dialed in curb weight plus my paltry weight. Total was 1715
> lbs.
> What gives?
> Embarassed Mike.
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