04-16-2019, 11:37 PM
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CC Member
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Join Date: Dec 2015
Cobra Make, Engine:
Posts: 25
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Quote:
Originally Posted by Gaz64
Yes, that's correct.
Reducing the overlap by widening the LSA delays the inlet closing point, all else being equal.
So the late closing inlet will still have reversion out the stacks on an IR intake.
One camshaft grind that sticks in my head is for the Cosworth DFV 3.0 V8. 68/86 for the inlet, 86/68 for the exhaust. 136 degrees of overlap. LSA 99. IR intake, Lucas mechanical injection.
Extreme example, I know.
Gary
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Wow. The intake closed at 86? What was the reversion like? |