Quote:
Originally Posted by 50cczip racer
is the cylinder kit a 1 or 2 piece head design 1 for sp 2 for pro
the port timings are similar to sp cylinders for derbi and minarelli 6speed
transfers are too low for good spread for quad but ex duration is fine
id just raise the transfers and run it as the sp and pro has huge sub ex port area
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The head design is 2 piece. A combustion dome (Head) and a cover for the head.
What do you think about 124 or 128 on the transfers. Or what amount of blowdown timing?
Thanks for your information it helps me cool my Jets a little.