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Flat top -small chamber VS dish piston - smaller chamber

General engine tech -- Drag Racing to Circle Track

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Re: Flat top -small chamber VS dish piston - smaller chamber

Post by My427stang »

levisnteeshirt wrote: Sun Nov 08, 2009 7:17 pm the combo i'm looking at , the dish piston is lighter , about 30 grams ,

was wondering if the benefit of keeping a tight quench , with maybe a groove in it , would be more of a benefit than a lighter piston with the dish piston

expect 75-7800 rpm range
One more comment, I noticed your comment, the tight quench distance has nothing to do with dish or flat, in either case, the quench distance should be kept tight. Either piston will only have the quench area that the head allows, but they both need it to keep things moving in the chamber
70 Mustang, 489 FE, TKO-600, Massflo SEFI, 4.11s
71 F100 SB 4x4, 461 FE, 4 speed, port injected EFI, 3.50s
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