What kind of CARB does a Chevy big block use?
What kind of CARB does a Chevy big block use?
Holley’s vacuum-secondary 850 (PN 0-80531) makes a good street carb for a Chevy big-block and can deliver the goods on a 750-horse engine if correctly used! Throughout this book, the theme is achieving the best from your Chevy big-block by getting everything just right.
How big is a Holley big block engine?
Holley’s catalog blurb says it is calibrated for big-block engines around 502 inches. That may be so, but in practice, this carb can deal with more than just what those few words imply. This carb was calibrated for an intake manifold that added a fair amount of heat. As such, the boosters are good in terms of atomization.
How much air does a Chevy big block use?
As a result, it produced 1,100 hp from the 96 pounds of air that it consumed each minute. This works out to be a BSAC figure of 5.2 pounds per horse-power per hour. This translates into a carb flow demand of 1,260 free cfm. The second big-block ran 110 pounds of air for 1,100 hp, which is not as good as the first example.
What’s the BSAC of a Chevy big block?
This works out to be a BSAC figure of 5.2 pounds per horse-power per hour. This translates into a carb flow demand of 1,260 free cfm. The second big-block ran 110 pounds of air for 1,100 hp, which is not as good as the first example. The same output was delivered with a BSFC of 0.46 lbs/hp/hr; its best air/fuel ratio was 13:1.
Holley’s vacuum-secondary 850 (PN 0-80531) makes a good street carb for a Chevy big-block and can deliver the goods on a 750-horse engine if correctly used! Throughout this book, the theme is achieving the best from your Chevy big-block by getting everything just right.
Holley’s catalog blurb says it is calibrated for big-block engines around 502 inches. That may be so, but in practice, this carb can deal with more than just what those few words imply. This carb was calibrated for an intake manifold that added a fair amount of heat. As such, the boosters are good in terms of atomization.
As a result, it produced 1,100 hp from the 96 pounds of air that it consumed each minute. This works out to be a BSAC figure of 5.2 pounds per horse-power per hour. This translates into a carb flow demand of 1,260 free cfm. The second big-block ran 110 pounds of air for 1,100 hp, which is not as good as the first example.
This works out to be a BSAC figure of 5.2 pounds per horse-power per hour. This translates into a carb flow demand of 1,260 free cfm. The second big-block ran 110 pounds of air for 1,100 hp, which is not as good as the first example. The same output was delivered with a BSFC of 0.46 lbs/hp/hr; its best air/fuel ratio was 13:1.
