Author Topic: A65 pistons  (Read 126 times)

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Mike Farmer

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A65 pistons
« on: 12 October, 2017, 12:04:15 »
Hi :)

I have seen listed some 7:1 pistons and as I need a set of pistons I am giving this some thought. Mainly because it should be easier to kick it over.(If I ever get to trying it again)

What were they in originally??

What sort of effect would they have. Radically underpowered or only a little????????

Mike 8)

JulianS

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Re: A65 pistons
« Reply #1 on: 12 October, 2017, 20:51:12 »
7.5:1 pistons are shown in the late parts books as an option for A65.

Pre 1966 standard models were fitted with same ratio.


STAR TWIN

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Re: A65 pistons
« Reply #2 on: 12 October, 2017, 22:30:57 »
7:1 is absolutely fine for present day petrol which is rather lower octane rating than was around when A65s were produced. You won't notice the miniscule power loss.

Mike Farmer

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Re: A65 pistons
« Reply #3 on: 13 October, 2017, 09:51:43 »
Hi

Thanks for that. Sorry I put post in wrong place-----age.

Mike 8)