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rice_killer rice_killer is offline
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Join Date: Dec 2001
Location: phobos anomaly
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use the 0.04 and 8.12:1 r.
thats not much above your default.
and ya might need to run a little higher test gas, OR alternativly lower the timing a few degrees.
shouldnt be much though.

what it all really boils down to is doing a compression test in when the engine been broke in. all the diagrams and excel sheets in the world wont tell you EXACTLY what your compression will be. ya dont know if the deck was shaved or heads modified etc.

an old trick i used once on my dirtbike was, i took the head and lapped it on a piece of glass with 800 grit wet/ dry sandpaper, this raised the compression to the point of pinging on regular. then i kept doing it till it pinged on mid grade.
now it runs on high test and doesnt ping, and has alot more power. point is, what if previous owner of the engine parts did this to your engine? that would not show up in the excel spreadsheet.

btw, where did you get this spreadsheet? i would like to look at it.
Old 01-20-2002, 10:15 PM
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