Piston ring gaps 4.6

JC. · Post by **JC.** » Tue Jun 03, 2008 5:17 pm

Does anyone know what each piston ring should be gapped to on a rangy 4.6 litre Rover, please?

Engine is 9.25:1 CR if that makes any difference?

Thanks in advance,

-JC / Perry

mgbv8 · Post by **mgbv8** » Tue Jun 03, 2008 8:25 pm

17 to 22 thou JC as far as I know.

Hope this helps

JC. · Post by **JC.** » Mon Jun 09, 2008 5:46 pm

mgbv8 wrote:17 to 22 thou JC as far as I know.

Hope this helps

is that accounting for nitrous or no?

kiwicar · Post by **kiwicar** » Tue Jun 10, 2008 9:31 am

Hi
The data sheet with my Marhl pistons for the Chevy added 3 thou for the top ring gap if you were running Nitrous nothing for the others if that is any help?
Mike

mgbv8 · Post by **mgbv8** » Tue Jun 10, 2008 1:36 pm

no, that's for NASP and not Nitrous. I increase my ring gap based on a personal formula which seems to work and I will know for sure just how well my ring gap performs this sunday at York.