Author Topic: A10'1956 (modifying compression ratio)  (Read 6672 times)

Offline muskrat

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Re: A10'1956 (modifying compression ratio)
« Reply #30 on: 08.04. 2021 21:32 »
G'day edboy.
Yes high comp with high top piston ans a hemi head are a problem.
We need to retard the ignition, richen the mixture or increase the octane of the fuel. In my case on the Cafe's 10.5:1 I have to do all 3 to eliminate pinging.
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, 88 FXST .
Australia
Muskys Plunger A7