Quote:
Originally Posted by Steve Tinker
Has anybody got the calculation for interprating overrevs?
If your DME says you have (say) 1,000 Type 1 overrevs, how many second or crankchaft revolutions is that?
I know I nearly fainted when I saw my engine had 22,000 Type 1 overrevs, but that was about 100 hours run time ago and I'd already had the car for a year when I discovered it...... Looks like the car had been on the dyno in its previous life, but up to now no mechanical problems, touch wood.
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The brain counts over rev ignitions, since there are 6 cylinders, divide the over revs by 6 to get the number of revolutions at over rev.
To calculate the time at over revs, the formula is 60 seconds/7500 revolutions = x seconds at over rev/number of over rev revolutions. Solve for x and you get the seconds at over rev. Or, 60/7500*(over rev revolutions)=seconds at over rev.
So in your example,, it translates to 1.4 seconds at over rev.