today we dyno’d D&D’s F7 bone stocker with their new twin pipes
feeding into stock quiet muffler. Great results to be posted on DTR and
on D&D’s website.
after F7, D&D installed a stock D&D F8 top end (they hadn’t
dyno tested that combo with new quiet twins). We managed to airlock the
cooling system, I think I lightly detonated the engine on our first run
as a result of air trapped above the combustion chambers. So D&D
headed home with the sled, very happy with F7 quiet twin results, will
be back with fresh F8 next wednesday to try again.
We had scheduled a HTG Big Bore fusion for this afternoon,
D&D took up the bulk of the day, HTG expects to have production
Ypipe/ single pipe to try early next week, will try to dyno as soon as
they have production stuff in hand.
Monday we will be testing a ProX800 twin pipe, with Boondocker N2O system. That begins at 10 AM.
My dyno pals Bill Davis and Donavan Facey have made 2800 instrumented
dyno runs at 7000 ft altitude. They have very interesting dyno data on
Fusion, MachZ etc at high altitude. The info they have amassed will be
a great benefit to mountain riders– Be prepared to be amazed at
the difference in stockers from sea level to 7000 ft and above!