Well, I don't think I'd pull the trigger at 34 degrees BTDC.
Probably more like 0 to 10 degrees ATDC so that max pressure is
at the same points ATDC that it is if a normal spark plug were used.
The HP increase would be better than free because there would be
less stress on the motor. It would be time to raise the manifold pressure.
Bryan (Dave will have it figured out sometime in the next 30 or 40 years I
bet.)
3liter wrote:
> What would happen if a Laser could sweep a 30 degree arc of the combustion
> chamber igniting 50% of the mixture in 1 crankshaft degree (or less) at
> 10,000 RPM ? Brian Savage
>
>
>
> Hmmm. Assuming 8 cylinders, you want to build 50% of the TOTAL cylinder
> pressure in less than 0.003 of a second, over the span of one crank degree
> when a normal engine uses 40-50 crank degrees from onset of spark to peak
> pressure. How do you spell DETONATION !! -Elon
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