Today we dialed in Darrell’s 05 F7 carb, expecting to struggle like we
did with Tony’s 04 last year, this one was different animal. No problem
tweeking to match EFI power, tested with DDYpipe, DDF7 Monster pipe,
Bikeman F7 mod single. Now that I have some non-Cat stuff posted, I can
get this stuff on the website probably this week.
Many of you guys saw the Polaris 440IQ SnoX sled on the dyno a week
ago, it was Sean Ray’s sled, will try to post a dyno sheet next week.
It was different from last year’s 440 racer.
Sean Ray is flying back from this weekend’s SnoX races (he’s still
tuning for Tim Bender/ Team Industries/ Polaris SnoX), we’re planning
to install new SuperFlow Windyne software before the Adirondack
Shootout. This will retain all the features we’re used to, but will add
the ability to use wide band O2 sensor to give us A/F ratio. Two
strokes are tough on O2 sensors but if it saves hours dyno testing EFI
sleds (ie: Fusion EFI is return system–we need to run fuel from tank
pump to dyno fuel flowmeter 1 then back to fuel rail, then bypassed
fuel from bypass regulators has to be plumbed back to dyno fuel
flowmeter 2, the computer does a fuel 1 minus fuel 2 calculation to get
net lb/hr). With wide band, no more fuel lines to connect, with A/F
ratio determined by wide band O2, and airflow CFM measure with
mechanical airflow meter, the computer will do the math to give us
lb/hr fuel flow and BSFC without me getting gasoline on my hands. I
hope to have that done before Shootout sleds arrive for certification.
SNOWWEEK DTR SHOOTOUT- SnowWeek Editor Tim Erikson is flying to NY Mon
11/28, somehow picking up a loaner Chevy Silverado 2500 from Chevrolet
(facilitated by GM’s Scott Norine aka our pal Predator711), driving to
White Lake Polaris to borrow a 4 place trailer, picking up 4 sleds from
Old Forge NY area dealers, then with SW contibutor Dave Wells going to
random dealers in the Northeast to swap for identical new sleds (this
arrangement is coordinated with all mfgrs). The tentative plan is for
Tim to deliver this first load of sleds to my dyno Wed AM, we will dyno
certify sleds then (I will show Tim how to run the SuperFlow dyno). Tim
E flies out of Buffalo Wed PM, then somehow Dave Wells will go back to
Old Forge, pick up the rest of the sleds, swap them at othe NE dealers,
get them to me Friday, dyno certify Friday and Sat AM, then deliver
selds to Old Forge for Sunday studding/ weighing/ 1/4 keg of PA
Yuengling Lager (Shootout coordinator George Taylor is a PA native).
Then the sleds are locked in trailers with SnowWeek padlocks, stored in
competing dealer’s warehouses (ie: SkiDoos stored at Cat dealer, Cats
stored at Pol dealer etc…) and won’t leave trailers until Friday AM
at Woodgate NY for the Shootout.
There is SNOW in the Adironacks now, it is probable that we will have
great conditions for the Shootout this year! We should also have 20
Trail Mod sleds, we will pump the gas out of each Trail Mod sled, pour
in three gallons of Old Forge 93 pump gas, and the sleds will
participate in a SnowWeek trail ride led by editor Tim Erikkson and
publisher John Prusack. This willl enable Tim and John to assess each
sled’s true trail manners, drivability, sound levels, etc. This is
meant to be more than a 1000′ dragrace–all Trail Mod sleds have trail
carbide studs, trail tracks, stock suspensions and shock travel.
With the Shootout looming, I’m trying not to book too many dyno tuning
sessions for the next two weeks, but here is what’s on the calendar:
NOV 29 PM Robert bringing in an F8 that was troublesome last year due
to low HP and poor performance, now hopefully rectified, we’ll know on
the 29th.
NOV 30 AM Tim Erikson and Dave Wells, Shootout Cert
DEC 3 Nick and a pal two F7s to tune
DEC 11 Mike with a single pipe F8
DEC 13 Ray’s XLT600/ triple pipes
DEC 16 Tim is bringing another F7
DEC 17 Canadians Vinnie and Hopper coming with two F7s
Lots of dyno time available before and after Xmas.