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The Accufab 8500 series 4-barrel throttle body.
We are pretty pumped about this one. It's been our contention that in race applications, the available intake air on naturally aspirated and/or nitrous equipped engines is too restricted. It takes about 12 times as much air as gasoline to create "fuel". Recent tests have shown significant horsepower gains with larger inlet air supply. We have seen this on the dyno and on the track with Accufab's dual-barrel "split Dominator" style throttle bodies, like the ones on Pat Musi's engine, and the ones on the new Sonny's engines, Dennis Ramsey's, Coughlin's, etc. Four of our dual-barrels will flow 7,396 cfm.
In many race classes, the racers are limited to a single 4-barrel carb or a single throttle body. We used a clean sheet of paper for this one and came to the conclusion that the standard intake manifold opening for the largest carbs available (the 4500 series) was just not adequate. Our goal was to develope a better 4-barrel throttle body, not to try and squeeze it into the existing 4500 series intake manifold inlet opening (an inlet opening that was originally designed in 1969). Our concept was to design a new 4-barrel throttle body, with a 50% larger inlet area at the base, and let the racers (or the intake manifold manufacturers) come up with better intakes to match the increased airflow. Racers are creative, they will figure out how to modify their existing 4500 series intakes to accept the 8500 throttle body (the bolt pattern is slightly larger) or better yet, use a sheet metal plenum style intake manifold.
Like everything we offer, the 8500 series 4-barrel throttle body is machined from 6061-T6 billet alluminum (and polished) and has the same size throttle bores (2.75-inches) as our "split Dominator" dual bore units. It flows 3,600 cfm @ 28-inches. If that's not enough, mount two of them together for double the volume.
Each throttle body weighs 3.5-pounds, compared to up to 13-pounds for a big 4500 series carburetor. The 8500's are actually smaller in overall size, too.
More air flow, more horsepower, less cost, less weight, what's not to like?
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Orders are being taken now and they will start shipping by the end of next week. Call me for details and pricing, (909) 930-1751.
We are pretty pumped about this one. It's been our contention that in race applications, the available intake air on naturally aspirated and/or nitrous equipped engines is too restricted. It takes about 12 times as much air as gasoline to create "fuel". Recent tests have shown significant horsepower gains with larger inlet air supply. We have seen this on the dyno and on the track with Accufab's dual-barrel "split Dominator" style throttle bodies, like the ones on Pat Musi's engine, and the ones on the new Sonny's engines, Dennis Ramsey's, Coughlin's, etc. Four of our dual-barrels will flow 7,396 cfm.
In many race classes, the racers are limited to a single 4-barrel carb or a single throttle body. We used a clean sheet of paper for this one and came to the conclusion that the standard intake manifold opening for the largest carbs available (the 4500 series) was just not adequate. Our goal was to develope a better 4-barrel throttle body, not to try and squeeze it into the existing 4500 series intake manifold inlet opening (an inlet opening that was originally designed in 1969). Our concept was to design a new 4-barrel throttle body, with a 50% larger inlet area at the base, and let the racers (or the intake manifold manufacturers) come up with better intakes to match the increased airflow. Racers are creative, they will figure out how to modify their existing 4500 series intakes to accept the 8500 throttle body (the bolt pattern is slightly larger) or better yet, use a sheet metal plenum style intake manifold.
Like everything we offer, the 8500 series 4-barrel throttle body is machined from 6061-T6 billet alluminum (and polished) and has the same size throttle bores (2.75-inches) as our "split Dominator" dual bore units. It flows 3,600 cfm @ 28-inches. If that's not enough, mount two of them together for double the volume.
Each throttle body weighs 3.5-pounds, compared to up to 13-pounds for a big 4500 series carburetor. The 8500's are actually smaller in overall size, too.
More air flow, more horsepower, less cost, less weight, what's not to like?
Orders are being taken now and they will start shipping by the end of next week. Call me for details and pricing, (909) 930-1751.
