jeff baham
Well-Known Member
- Joined
- Aug 10, 2002
- Messages
- 1,257
what is the bore size of a .21 carb in inches please
Hi Mike, long long long time ago I was running a veco .19, with a .221 carb and a .035 thosands spray bar, I just counted all my .21 carbs, 31 in all, sizes range from .221 up to .430 with spray bars ranging from the ..035 spray up to .088 thos in the Rossi 80 carb I used to run in my seeducer .21 mono which ran very fast in heat racing, after about a lap when the motor heated up and it started to screaming those sweet RPM's. In my testing over many years, I am sure there is a coralation between how the engine breathes, stock or modified, compression, head clearance, carb size and spray bar size, and of course nitro content. Been running my EAGLE SG 80 with a .105 thos spray bar, .570 bore carb,(U can run bigger carbs and bigger spray bars when weather gets hot and humid, such as here in south west, FL. So is there a (standard .21 size carb), I have not found so.JM2CWI run the .350 here in the midwest with good results.. the stock nova carb rocks too... ( woods bellmouth, and mods).. interesting thread though... as in, are people having results with the .370... how, and where?...
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