Glenn Hall was coming by Batavia on his way back to WI from a long
stint at D&D’s dyno, and he did a driveby yesterday afternoon to
dyno here the production Monster single and Y pipe and Boondocker on
the same pump gas F9ss sled dyno’d earlier with hand built pipe. Also
Glenn dyno’d his very amazing race gas only “lake” racer, with Monster
single and Boondocker. Bill LT DiFranco helped out as usual, and was
planning to provide lodging for Glenn last night after the dyno
session. What Glenn didn’t realize was that LT was also providing for a
vacationing neighbor, temporary lodging for four cats and two dogs who
were also staying in the same bed in the guest room. Glenn can use this
blog to explain to his wife the presence of curly, multi-colored hairs
on his Hanes shorts.
D&D will likely post their latest DynoTech numbers, and I will also
do that next week after I post Bikemans similarly interesting dyno
results.
Saturday, we’re doing a camera-off tuneup for a factory sno-x racer,
then Sunday Sean Ray is bringing in a trailmod Polaris XC800 with twin
pipes. With the XC800 on the dyno, we’ll tune first, then switch to the
latest Windyne software, then make sure the new software delivers
identical data to the current software. The new software will allow us
to use O2 sensors and wide band A/F ratio meters to measure
A/F. This will eliminate the need to run all those hoses back and
forth to mechanical meters while tuning EFI sleds. And, if we fit our
airflow meter to a sled, the dyno will compute for us fuel flow lb/hr
and BSFC. And I’m hoping that, on mod airbox-less race engines, if we
use O2 sensors to measure A/F ratio, and mechanicallly measure fuel
flow by mechanical meter, the dyno will compute airflow CFM without an
airflow meter.