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Discussion Starter #1
I CHECKED COMPRESSION BEFORE REMOVEL OF THE STOCK TWINS,AND CHECKED AFTERWARDS AND THE # ARE BOUT 25
PSI LOWER
SHOULD THIS BE ?
ANY HELP ON THIS WOULD BE HELPFUL

RANDY
 

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Shawn Davis
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1,662 Posts
I'm new to supras but I don't see why it would. I mean the compression should be constant assuming the valves are closed.
 
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Ditto to above. Manifold should make zero difference. Temperature of the motor at test time will make a significant difference. If some oil (even a few drops) gets in a cylinder, that will make a HUGE difference.
 
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