Maintenance & Technical > KX500 Original
horse power
stewart:
please post them if you can
doordie:
Oki,but you have to answer my questions! :-D
I think this is the ones... :evil:
stewart:
i started at 60 horse rear wheel with stock comprsio and timing and 110 race fuel fmf fatty pipe and v force reeds i at 77 hp at 7000 rpm and 61 ft of tq at 6000 with lectron 44 and 15 to 1 made more power on oxgenated gas like vp u2 and vp cmp and raised jug .050 pro cicut pipe etc i have lots of parts i tried left overpipes etc do you want more detail just let me know we have made hundreds of pulls trying 1 thing at a time
YUNGGUNNAZ:
stewart,see you made it over.okay lets get'er going.did you try the rad valve against the v force?also when altering exhaust port timing did you massaged the center flap so in wide open position it was even with your new port roof.do i see chart right in that squish is .025.lastly have you tried a jemco down pipe for the kx500,which should put 1000-1500 more rpms on graph.my 2 cents
stewart:
i found the best power from the v force reeds was 2 horse better than boysen or stock i did not test the rad valve yet becuse i was so happy with v force yes i cut the top kips valve flap about till flush with top of exh however i am not sure it helped at this time i run 0 deck on piston to top of jug a .010 gasket and .038 depth in cyl head for a .048 squish i have a nice head cuting fixture we built and i turn the squish angle to .4 degrees about 2 more than the top of wiesco piston i had max power coat bore and piston i like them top coating the piston like the cylinder wall looks like ceramic chrome . i am running a 35 cc cyl head volume right now stock is 42 cc i have tried down to 29 cc
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