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valve spring

Posted: Wed Sep 14, 2011 2:22 pm
by sanm72
Hi!

Please, I have a question for all the engine Cooper S experts.

Introd: My 1275 MK1 Cooper S engine was bilt using the METRO MG Cam.

Question: Is it correct to use the standard 160lb double valve springs (7000 rpm limit) or is it more desirable to use the fast road 200lb springs?

Many Thanks
Sandro

Re: valve spring

Posted: Thu Sep 15, 2011 8:18 am
by Vegard
The MGMetro cam won't rev more than 7000 anyway. Use the softest springs you can get away with. Remember to check the fitted length.