Carb jetting

E33

E33

Member
Building a predator 212 non hemi need help on jet sizing.

Cl-1 original cam
10.8 springs
Billet fly wheel
Header pipe
Stock air box
Main jet has to be .35 or lower. no max size on low side. venturi tube has a .07 no go.
 
I wouldn't worry about the low side too much especially if this class usually has a lot of cautions. Seems to me the stock low side jet is like .017 and you might bump it up a little but kart racing is mostly idling around or completely wide open. Mid range throttle is past the area where the idle jet comes into play.
 
mike97760 said:
I wouldn't worry about the low side too much especially if this class usually has a lot of cautions. Seems to me the stock low side jet is like .017 and you might bump it up a little but kart racing is mostly idling around or completely wide open. Mid range throttle is past the area where the idle jet comes into play.
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Thanks for the info I appreciate it
 
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