Different designs of inlets and outlets dramatically effect the performance from Roots superchargers. Original designs for non-boosted flow used large inlet and outlet openings. Shrinking those openings for boosted flow improved performance by reducing reversion (more…)

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Lastest from a reliable dyno source is about 80 horsepower per psi of boost added from ram air. (more…)

Our blown nitro altered (currently for sale or trade) will be on display at the NHRA Infineon Nationals, July 29-31, at Infineon Raceway at Sonoma, CA. This is the cover car (more…)

Blown Nostalgia Funnycar; also with 23T Altered body & wing; cover car featured thoughout our tech books; funny car very streamlined & very light; blown alc-nitro KB Hemi (more…)

Use Pro-calc to run your fuel injection jetting prior to a flow bench test, dynamometer test, or race outing. (more…)

The determination of nozzles & jetting in a new fuel injection setup can be a challenge. (more…)

Decreased percentages of nitro richen the racing engine. (more…)

A lot of pit buz that cooler fuel runs better.

METHANOL VAPOR ISSUE: We found in our methanol publication development that only methanol vapor burns. (more…)

We made a full pass. Picked up 3 tenths of a second and about 7 MPH over 9% nitro. It was a rush. The engine is louder. And more radical. We are still making enough engine heat at idle to keep the oil dilution minimal. We are on our 16th pass on the same oil and it looks good.