Maintenance & Technical > KX500 Original
horse power
stewart:
the second two charts are old stuff before lectron44 and raised jug .050 the first chart was done in 98 degree temp but i have a lot of other charts about 100
YUNGGUNNAZ:
were in the same ball park as far as squish.mine being .043.but have not changed angle yet.deck is also 0.tried some reed cages but rad valve worked better for my setup in drag 500ft.the pipe gives me lots of top end but a little loss in the bottom.hence another pipe is on order from shearer this time.you did also work on the auxillary exhaust ports a little too.some gain should be there also.another member here was looking into use of custom 90mm or 91mm pistons as well.over here going 3mil stroker seems to be most builders approach.i'm not sold on this yet in single cylinder drag race setup.piston speed and angle,rod ratios i'm still looking into.gonna try a 48 lectron and 87 cylinder on next build.
stewart:
i only run 86 bore and 86 stroke which is stock what is your head ccs we need to recut head angles
doordie:
Oki,here we go Steward!
Is this right?
Raised cylinder:0,05 = (1,25mm)
Squish:0,048 + 0,01 = 0,058 (1,20mm + 0,25mm=1,45mm)
Squishangle:4*(degrees)
Headgasket:0,010 = (0,25mm)
Headvolume:35cc
Compression:15:1 fourstroke (8,15:1 twostroke)
Carb:Lectron 44 (needle??)(powerjet??) :?
Fuel:VpU2(oxygenated)
Inlet:Vforce 1,2,3??
Exhaust:PC 2
Do you have a portmap or can you fill in this one posted?
Exhaustduration?
Subexhaustduration?
Transferduration?
Boostduration?
Tuning are so fun!!! :evil:
(We have the same set-up,only carb is different! :-D)
stewart:
first i had the base gasket made out of .060 matrial that is how i raised the jug .050 over stock it is 0 deck at tdc .010 gasket .038 step in head total squish .048. i run v force 2 reeds changed when the flow is not equal on each section of reed block by holding up and filling with water and timing till each section is dry 130 transfer durtion 200 exh durtion to top
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