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Motorcycle carbs, bike carbies, flat-slide, constant vacuum & variable venturi carburetors.
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Overview
rallytwit made 73.22 RWHP on his A-series:
39mm FCR carbs with a near standard GX motor; ported head, headers 2 inch exhaust and 14lb flywheel. As far as reliable FCR carbs are stone axe reliable. For street (or racing) use you would have to do some tuning but it's not a big deal. I only needed an hour of dyno time to get the car 95% dialed. My only problems were because the carbs were on 175HP A-series powered sports racer so the jets were way off what my motor needed............lots of guys use these on street bikes and they are standard equipment on MX bikes. 32MM would likely be better for a street car, the 39's on my car border on over-carbed. As fars as how the motor runs they are the bomb the motor sings......revs like mad and instant throttle response.
TUNING is critical. Bike carbs as-is run poorly on automotive engines. But with the right jet or needle selection they can run very well.
Keihin Flat CR (FCR)
bike carbs on A12Y engine
Matsuoka MSR carbs
adapt carbs from your favorite motorcycle
Adapter Kits
Fumiya
Datsun 1200 enthusiasts Fumiya sells these
Photo Index
fcr,msr,keihin,cycle carb,bike carb
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