I've seen people ether running or talking about running a 38mm on a worked up stock bore Blaster. Looking for input on running this size carb. It seems really big on a NON BBK motor.
Carb size input.
- Thread starter blasterdemon7
- Start date
thats way too big for anything but the most worked blaster motors known, like the one 442 just did, or possibly taters and some other drag set-ups
general rule of thumb is ...it'll always run lean from lack of air velocity
heres what i see most run with success...........
28 - 30's for stock non ported
32 - 34's for ported/stroked stock cylinders
35 - 36' for bbk's
general rule of thumb is ...it'll always run lean from lack of air velocity
heres what i see most run with success...........
28 - 30's for stock non ported
32 - 34's for ported/stroked stock cylinders
35 - 36' for bbk's
That's what I was thinking but why are some people going so big?In this thread is one of many examples of I've have seen.
Mid-high powerband range setup by kennedy - Page 2 - Yamaha Blaster Forum
Mid-high powerband range setup by kennedy - Page 2 - Yamaha Blaster Forum
Drag blasters don't worry about how the engine runs when you crack the throttle, only how the engine runs at WOT at maximum RPM's.
A 38mm carb is probably about right for an all out drag blaster. Minimum restriction to the incoming air.
A 38mm carb is probably about right for an all out drag blaster. Minimum restriction to the incoming air.
Looks pretty accurate to me and looking at his mods and being on a stock cylinder, 33hp is pretty damn good.
What setup are you going to run again? My recommendation is kind of dependent on it.
