BIG97 hits over 300cfm flow!

We have been testing our BIG97 carbs recently to see how much cfm we can get out of a modified carburetor, with our consultant Norm Schenck at Competition Fuel Systems in Michigan. The vertical manometer shows the vacuum pulling air through the carb – 20.4″ H2O, which is 1.5″Hg. The handle on the front of the flowbench, below the carb, is set on the 400cfm scale. The inclined manometer shows the volume of air going through the carb as a percentage of that 400cfm scale. In this case, 77% of 400 is 308 cfm. There is a probe inside the 5″ cylinder below the carb, with a small correction factor that makes the airflow correct in term of the Superflow flow calibration plate. Applying that correction factor brings the flow to 300.5 cfm, though what looks like a regular Stromberg 97!!

If you’re planning a big engine build and want some serious cfm capability, contact Norm at┬áCompetition Fuel Systems – email norm@compfuelsystems.com

Stromberg-equipped Chrysler Hemi FirePower

If you love Stromberg-equipped vintage hot rod engines as much as we do, then what better combination than this 3×2 97-powered Chrysler Hemi FirePower? Filmed over 10 months by Davin and Matt at the Hegarty Insurance workshop, this time lapse video of the whole rebuild is exhausting to watch let alone film or do! But what a project. Congrats to the guys for seeing it through. Click here and Enjoy the ride!