1/1 Bill Rogers stock Dragon 700 with reflash stock testing plus SLP and Dynoport pipes for PCIII mapping top end fuel is very safely overrich, see full report
1/2 private session, cams off
1/4 518ers Alan w/ Yamaha 700 Viper triple N2O made
159 na with Bender triple pipes, amazingly added 50 with a battery
powered n2o box that feeds fuel from the stock mechanical fuel pump,
looking for even more in a week or so, Dave w/Vmax4 bigbore, …the
945cc Justin Fuller ported big bore with 4 44 Megatron carbs, Power Inc
pipes made 250 which is the highest power na Vmax 4 tested here, was
going for more with offset key but a loose flywheel cover dowel ate the
stator before more HP could be created…Justin Full Power 4Tek header testing..another
3-1 stainless header, this one easier to make than the previous
prototype header that made significant HP, but this one disappointed us
with HP about equal to stock. All 3-1 SS headers are not creating equal
HP…
1/5 Joe Martin Firecat Boondocker tune bone
stock 04 with 2 deg key, VForce, D&D Ypipe, BMP stealth pipe fitted
with stock pipe heat shield, stock muffler of course, Boondocker tuned
perfectly to 153 HP at .60plus 11.5/1
1/6 Bill Swoyer, CS HO800 hillclimber, CS twins on CS mod makes very big but private HP late PM Jeff Sherlock, F1000 with new whisper-quiet Jaws twin pipes new
Jaws twins with incredible whisper-quiet muffler can easily pass for
stock dB but also make big tq and HP…155 lb/ft 220 HP on this one… and a F7/860 Lakeracer stroker Rich
and RJ’s na Oneida Lakracer cranks out 194 HP after tweaking fuel and
D&D Monster twin pipe header length to optimum…
1/7
1/8
1/9 kyle cook, HTG 1200 triple, 990 twin Kyle’s
1200 lakeracer made 278hp, lower than most HTG big 1200 race gas
triples–Rob thinks it needs timing and compression to bring it up
another 20hp. Kyle’s 990 twin ProX lakeracer has been giving him fits
of hard to understand deto. Turns out the lectron carbs are buzzing and
foaming the fuel, causing fuel flow to surge wildly and leaning the
engine out…this can be cured with a combo of softer engine mounts and
carb boots, larger needle and seats, higher fuel pressure, and added
carb weight to dampen the vibration. Remember Jim Cooper cured his
foaming megatron carbs with about 7 lb of steel that served as a rack
to tie the carbs together. Will hopefully Kyle be back with both sleds.
1/10 or 11 SledWerx Spenc stock Dragon 800 w/ DynoPort single, BMP single and other stuff for PCIII mapping Spenc
couldn’t get his clutch off so Wayne Stoutner subbed with his
D8–created great maps for DynoPort and BMP pipes, and also found a
pile of nasty richness at 3/4 throttle in the midrange that had been
causing annoying bog letting off the throttle from 90mph. It took a
large block of negatives, removing nearly 20% of the fuel flow there
and the misfire is gone. Many PCIII users have adopted this version of
the CC (Casey Chad) midrange map that we call CCW (Casey Chad Wayne).
1/12 Mark Burns Xfire1000 Boondocker tune, TCat Hooper big bore 1230 triple Mark’s
XFire with 2.5 deg key, BMP Ypipe and single pipe/ stock muffler tuned
safely to 183chp. The big triple is a dandy, with a broad HP plateau
that even I could clutch to, but I think Mark doesn’t want his pals to
know his HP.
1/13 going to JD Powersports in Rochester
NY for SuperFlow 902 training. JD has new 902 and are having SF Brett
Williamson coming to fine tune/ train them at their Cat turbo tuning
facility. SF is warming me up to upgrade my 22 year old but dandy 901
console to 902 for $18,000 and I need to see how it works before I go
into debt again.
1/14 Chuckaroo noonish trying to up his PS1000 DTR highest HP record some more. Chuck’s
latest iteration has buzzing carbs similar to Kyle Cook’s, often
plaguing solid mount strokers, just as it was leaning out at 9200 from
foaming fuel it made 280 plus observed before tightening up. I should
have had the copper tube bolted to this one, although it may have just
lean-squeeked which we couldn’t hear on the detophones.
1/15 BMP race ported F6 with stock pipe modded and fitted with stock heat shields, and stock muffler this made a dandy 146hp with Boondocker tuning.
1/16 All cancelled
1/17 Justin Full Power w/ three hopefully 400 HP Yamahas (cancelled)
1/18 Carl Therieult, Cat M8 w/ D&D shim kit, then Ypipe, then single pipe. This
was dandy enough to post on DTR as a tech article. Great
bang-for-the-buck at $250 for the shim kit and head mod (drops the
combustion chambers into each hole to maintain squish/ compression with
raised cylinders).
1/21 Jeff Palermo SkiDoo “500” 120 safe hp w/ modded muffler
1/22 Justin Fuller three or four more Yamaha turbos Todd’s
RX1 hillclimber made 466, Johnny’s Apex lakeracer ran out of fuel pump
capacity at 322 and Joes Apex trail sled made 300 plus.
1/23 Rick Kubecka, dragon 800 with twin pipes for PCIII tuning IQ
race chassis w/ bone stock Dragon 800 EFI engine set up for hill drags,
a set of custom twin pipes, tuned PCIII on race gas touched 170chp with
a flat plateau. A bump in timing/ compression should add lots to this
one…
1/24 HTG session Cams off, 11AM Mike Brisbane F7/8 twin pipe Mike had a hand-modified stock muffler silencing the D&D monster twins last time, but that stock muffler was way to tight for the high flowing F8, creating deto causing our copper tube to crackle and snap…went home, bought a D&D can that is made for the twins. Loud but free-breathing, made 170 at nearly .70 lb/hphr on his tug hill map with no hint of click.
1/25 Ed Derby’s repair four sled marathon..Carl’s 660 Pol twin, Blade 91 HTG twin, F1000 trail sled w/ n2o, Edge RMK 860 Engine Tech…Ed came solo with a trailerload of sleds to tune for himself and his customers. Started Sunday, finished Monday. One highlight was tuning a Boondocker carb N2O system. Ed was here a few years ago with one of those and we had an awful time trying to create proper and quick additional fuel flow to match the N2O delivery. This time we got it right, and I need to post some details on the tech pages.
1//26 Private test, cams off.
1/27 open
1/28 Private test, cams off
1/30 H Kirsch and MKoz Big Cat Lakeracers cancelled due to snow and lack of parts
1/31 Scott Brownlee and his pal Nelson Cadieux of Carlson Sports RV center in North Bay Ont, 4 big Cats to tune make that 5 big cats to tune! Scott and Nelson made their fourth trip to DTR to tune. This time five Carlson’s and customers’ sleds prepped for dyno tuning (clutches, hoods off, etc). Got them all tuned on Sunday, including the shop’s Z1 with HiJacker and several higher flowing aftermarket mufflers maxed out on 91 octane and on straight fresh C12. This one deserves a tech article. Stay tuned.