12mm to 14mm??

Changing from a 12mm to a 14mm carburetor... how much difference will this actually do -

Here's my bike specs and my mates-

My suzuki minicross

-12mm dellorto

-Hi-flow air filter

-Performance exhaust with straight through baffles

-18 inch rear wheel with 14/40

Mates suzuki minicross

-14mm dellorto

-Stock air filter

-Same exhaust with long, not-as-loud baffles

-17 inch rear wheel with 14/40

His bike hits about 38, mine 42... at a guess, how much speed difference would be gained??

And, if i changed to a 14, would i still use the 64 jet in my 12mm carb, or bigger?? or smaller??

Re: 12mm to 14mm??

thats a lot of variables dude

Re: 12mm to 14mm??

youd have to change the intake manifold too. keeping a big carb on a small manifold is like drinking a huge bottle of water with a big opening through a tiny straw. ya gotta upgrade the whole stream to get it all flowing right

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