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2016 Pumpkin seed build...
KXDINO:
Which bike was better , or did you have to put 1 teeth larger rear sprocket for mxa crew to like it.
motorman455:
I just got the Feb issue of MXA and the review of both bikes is there! 72h.p. out of the KX500! Sounds like Sandblaster had some trick work done to the power valves. His bike blew the base gasket early on. Must have been from all that pressure from the forced induction crank :-D
KXDINO:
old jody would of been hanging on for he life.
sandblaster:
--- Quote from: motorman455 on January 06, 2020, 02:20:09 PM ---I just got the Feb issue of MXA and the review of both bikes is there! 72h.p. out of the KX500! Sounds like Sandblaster had some trick work done to the power valves. His bike blew the base gasket early on. Must have been from all that pressure from the forced induction crank :-D
--- End quote ---
Lol... Yeah it was quite the freak out that is for sure... All these Industry big wigs standing around joking and asking if we could do their top end next :-o
The compression wasn't much, approx 14:1 but the reason it went is because it pulled a few head studs and blew the head gasket.
That happens sometimes when you are using 20+ year old cylinders :-D
Thankfully we had a backup cylinder on hand.
Because it's a conversion bike removing and replacing the top end isn't as easy as it is on a KX500.
But we pulled the other cylinder off, pulled mine off, swapped them and Jason even fixed the front flat tire all in about 45 minutes.
It's amazing how fast you can spin a wrench when you have people standing around jeering :-D :-D :-D
motorman455:
So was the backup cylinder ported to the same specs by T Morgan as well? Are you able to post the dyno data and and other details behind what it took to get that kinda power besides 14:1, port timing changes and the induction crank?
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