3/1 Got a call from Don Emery of DNE performance, that 384hp 1725cc four cylinder Mach Z he built for Tom McConkey (dyno sheet posted on Subscriber pages) set a radar record for single engine sleds at 177.0 mph. You can see an amazing video of madman Tom making...
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F1000 pump gas big bore D&D F1200 big bore kit
tested on pump gas with D&D single pipe and D&D twin pipes
Mach Z Boondocker N2O Boondocker N2O system with 91 octane gasoline
regulated Nitrous Oxide delivery pressure for constant HP added regardless of cylinder head pressure
bathtub cylinder heads vs shrinkwrapped cylinder heads
I subscribe to Cycle World magazine primarily to read Kevin Cameron's monthly one page TDC column, and to try to absorb detailed technical articles he writes that appear in about every other issue.In the most recent issue (March?) Kevin addresses coolant velocity in...
Trail mod dyno tuning Mike Gray800HO, BigJohn840, Jason Owen F8
three trail mods in the same trailer, before and after dyno tuning on one day in January.
Month of February
2/1 Trevor Bovard w/ two mod F8 Firecats, one Rev 830 big bore.First F8 was a clone of the sled Trevor brought earlier, this one was a bit higher in midrange tq and hp, a bit less top end hp, needed totally different Boondecoker settings. Second F8 gave us fits, huge...
Mach Z ECU comparison… compare 06 to 07 fuel flow and HP at WOT
06 sea level compared to 07 sea level, 07 medium altitude, and 07 high altitude calibrations (= high HP)
Month of January
1/4 Had scheduled Glenn Sabatine to dyno his new MC Express turbo PZ, inctead he's going riding way up north to find some snow. So instead at 10am on standby Jimmy Cooper with his Mom's 600 SDI with some mods and three or more single pipes/ mufflers. Also Jim is...
06 SnowWeek/DTR Shootout stock sleds dyno certified here
stock sleds uncrated and dynotested to ensure stockness, compare cool pipe to hot pipe
subscribers who can dial in chassis’ for others
I would like to make a listing of DTR subscribers who can, for a fee, do clutch/ chassis tuning for individuals. Dialing in engine HP on the dyno and finding engine RPM HP peaks at various pipe center section temps is half the battle. To get that HP to the ground...
MPI SC Apex session two Art Andre’s sled with fuel upgrades
larger capacity fuel pump, Boondocker boost and RPM referenced EFI controller
new NA DTR HP record DNE 1725cc four cyl two stroke race engine
Tommy McConkey
06 SW/DTR SHOOTOUT some trail/ lake mod entrants’ dyno numbers
HTG IQ600, C&J HO860, BMP F1000, HTG pump gas 1200 edge, HTG race gas 1200 edge
Month of December
12/1 Justin Fuller, former Bender Racing engine guru is now on his own with his new company Full Power Performance. This was a SRX triple that Justin had fitted HTG 1000 cylinders to, 11.5-1 compression ratio now with a load of Boss Noss N2O. Made 218 at .78 lb/hphr...
07 Cat F8 Trail Mod D&D ported F8 on pump gas
tested with stock Ypipe stock pipe, D&D Ypipe stock pipe, and D&D Ypipe D&D single pipe stock muffler
Trail mod Firecats one F7, one F8 best stock muffler performance
Bikeman F7 trailport with Bikeman mod stock pipe, Best Perf F8 trailport stock cyls with BM Fatazz pipe
07 F1000 trail mod D&D trailport F1000 on pump gas
compare D&D ported engine, stock pipe stock muffler, D&D pipe stock muffler, D&D pipe D&D muffler
Month of November
11/3 RKtech 830 big bore with four different single pipes. Private test, cameras off I hope this guy gets RK Tech to belly up there is significant positive info in this test session, if RK pays for some of dyno time we may be able to post numbers, very...
Month of October
10/1 Another solid mounted race engine was giving the sled owner fits (wouldn't pull expected revs in 500 ft), and it similarly gave us fits on the dyno. Fuel flow was all over the place, indicating that the carbs were suffering from high frequency vibes that caused...
07 IQ 600 EFI pipes compare single pipes
stock pipe/ vs DynoPort pipe/ vs Bikeman modded stock single pipe