checking comp ratio

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tone
Posts: 43
Joined: Sat Mar 07, 2015 12:16 pm
Location: UK London

checking comp ratio

Post by tone » Mon Nov 30, 2020 12:04 pm

any ideas how I can check the compression ratio of an engine please?
was thinking of upping the supercharger fully to give a bit of a boost in power, bottom end is all good had head sorted a while ago to unleaded so think it should be ok, but would be useful to have a starting point to measure

thanks
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Tom Lange, MGT Repair
Posts: 310
Joined: Mon Jan 07, 2013 10:14 am

Re: checking comp ratio

Post by Tom Lange, MGT Repair » Tue Dec 01, 2020 2:33 am

If you know the bore diameter, the piston type (flat-top or domed), and recorded the head thickness when you did that work, you can get a pretty close approximation.

Tom Lange
MGT Repair
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