Leadfoot350 Posted November 5, 2004 Report Posted November 5, 2004 I would like to know how to measure my compression ratio by adding fluid into the chamber when the piston is at tdc. I just dont know the math for it and how can you tell if you are true tdc? Quote
FIRST BANSHEE Posted November 6, 2004 Report Posted November 6, 2004 To check tdc you can use a dial indicator in the spark plug hole. trying to c.c your domes with the head on can't be done accurettly because the fluid will leak past the rings, also the jugs are on a forward angle. you need to remove your head, plug the plug holes, place the head on a level surfaceand add fluid 1 c.c at a time untill the dome is full. I believe you could use a piece of plexie glass on top of the head with a hole in it to add the fluid. you'll also need to know your squish and your piston dome size. Good luck Quote
Leadfoot350 Posted November 6, 2004 Author Report Posted November 6, 2004 People do it when it is level with the head on they just use marvel mystery oil and maybe some grease somewhere. I cant really use a dial indicator because nothing is magnetic to stick the mount to. Quote
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