Pelican Parts Forums - Compression ratio advise

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Compression ratio advise

Posted over on technical but didn’t get any answers.

Hi. I’m about to start rebuilding my 3.0SC, I’ve already got some 98mm cylinders that are going for a re plate and hone , I’ll get the cams reground to suit whatever o need but I’m looking at new 98mm pistons, 70.4mm stroke and 22mm pins. I like the price of Wossner but their 11.1 CR is too high “possibly, Carrillo do a 10.1 and JE have several but are a bit more money. I’m UK based so import costs are steep but petrol octane is high so I can get away with higher CR. I’ll be fitting carbs, either PMO or Webber’s. I would like some solid advise on piston choice and CR for my needs. Thanks in advance.

I'm seriously considering the Carrillo 10.5 CR pistons for my 3.2L SS

David

Quote:

Originally Posted by Harpo (Post 11594009)

I'm seriously considering the Carrillo 10.5 CR pistons for my 3.2L SS

David

Are you going to twin spark ?

I think there is another thread also