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.

We dropped the AFR to 3.2 The idle went up by 300 RPM over the 9% setup (with no idle adjustments). (more…)

With a small increase from 6% to 9% nitro, in preparation we dropped the AFR to from 3.7 to 3.4. As a result, we picked up a tenth of a second and about 4 MPH over 6% nitro. (more…)

We added port nozzles and put about 60% of the fuel into the ports.
(more…)

We tested a low percentage of nitro last week in our blown alcohol drag race roadster. (more…)

Just a note about our test engine for this year. We put our blown alcohol engine back together for nitro testing this year.
(more…)