12/1 Rob Schooping dyno tuning Skidoo triple 1200 stroker lakeracer this one was a hermaphrodite, but not as powerful as the typical HTG1200 triple
12/2 private session all day, cameras off
12/4 Mike Martin MPI SC Nytro one more time with bigger fuel pump. Mike did a complete custom fuel system on his own to get fuel flow to match the big air flow
12/5 AM open PM Deeder better have his parts now. Deeder got his stuff, still making 300 plus, but a small piece of cylinder casting popped loose between bore and oring. Back to the plater.
12/8-12/14 Dyno Nightmare Week–a dozen AmSnow Shootout sleds to certify monday-wednesday, live on DynoCams, please let me catch at least one cheater (!?)… then I pick up stock and mod trophies, head for Old Forge on Thursday but must stop at Syracuse airport to pick up AmSnow Ed Mark Boncher who will be expected to chip in for gas and road beer, Shootout #19 (don’t know roman numerals) on Friday at Woodgate.
12/15 Bill Swartz several CS mod engines, live on DynoCams
12/18 Anthony F F7/8 twin pipe Boondocker tune create two perfect maps one for 87 octane 10.5/1 163hp, 93ish octane 12/168hp
12/19 Mike Scarcella cancelled
12/21 Allen Miller Bender Viper cancelled
12/22 Kyle Cook, Rob Schooping two mods cancelled due to weather
12/26 Jeff Sherlock w/ mod F1000 and new Jaws pipes, Top Gun Dave Dillenbeck trying new high rpm pipes on his Cutler F7/10 Jeff’s dyno session was shortened by a combo of a failed Boondocker
box and/ or an air lock in his cooling system (air pocket above comb
chamber = detonation with safe A/F ratio). He had just come off
Jaws’ SuperFlow dyno just like mine, with new Jaws F1000 twins, perfect
Boondocker tune and HP he wanted to share with DTR. His plan was to
make some good HP then pop the head off to let me measure bore and
stroke like Rich Daly did with his XP800. But before the good HP could
be made, initial dyno midrange fuel flow was horribly lean, down to
17/1 and we kept stopping the dyno tests midstream to have Jeff add
Boondocker fuel numbers. Adding 20 to all WOT rpm settings did almost
nothing to increase fuel flow, and eventually a plug got speckled.
There were also issues with trying to get dyno cooling water through
the chassis and into the reverse cooled engine, possibly contributing
to the detonation. The lack of fuel due to the boondocker reverting to
stock fuel flow, combined with air trapped in the head = short dyno
session. Jeff will fix whatever the problem is and come back again next
week. But for now I can offer that the Jaws F1000 twin pipes are incredibly, very nearly as quiet as a stock exhaust. The ultimate HP delivery will be demonstrated when parts are fixed, Boondocker replaced and coolant bled perfectly, and head is removed for bore/stroke measurement by yours truly.
Dave D’s day was better, but the high revving twins didn’t make his F10 happy, so he went back to his original 8000rpm pipes and made more power. Tweaking on his wet N2O system (Dave had to buy a $100 hot air gun to heat his n2o bottles because he knew I wouldn’t let him use a 3000 degree torch to overheat the aluminum bottles that lose much of their tensile strength at 600 degrees F) made him over 260hp with .65 lb/hphr. Will Dave’s 260 HP n2o Firecat run w/ Mike Koz’ 300 HP n2o F1x00?
12/27 Mike Marpoux, SkiDoo Big John Big bore, and 09 800XP stocker