Archives: drag racing

Dyno Prep’ed 572

Mr. Szabo Just an update on my 572. Went to the dyno and made 968 hp, 833 lbs/ft torque. This is with Ron’s Terminator, a 01/2 twin gear pump, .037 nozzles, and a .102 main jet. Air/fuel ratio was 5.3. I was pleased! The information in your books was very helpful and allowed me to […]

Simple Fuel Pressure Gauge for Peak Fuel Pressure Reading

We used a simple fuel pressure gauge with a peak hold needle to record our highest fuel pressure value from a run.  The gauge is an all stainless, bottom 1/4NPT pipe, glycerin filled gauge with a maximum indicating needle. Glycerin filling is needed to dampen the needles from racer vibrations.  Stainless is needed for resistance […]

E85 as a Racing Fuel

E85 is examined as a racing fuel.  E85 is a combination of ethanol and low octane gasoline.  Some racers report more power from E85 than from methanol.  On the other hand, when the Indy Car League converted from methanol to straight ethanol, dynamometer tests revealed a reduction in power after the conversion.