12/1 518er Craig Horn, F12 trail mod for PCV tuning 12/2 Tom Anthony tuning an IQ600 mod from HTG 12/3 Koz bros PCV tuning two Cat 800 hilldraggers--one stocker on imp stock? cancelled 12/4 three new stock 800s Etec, ProR, and F8 for comparison w/ zero miles...
Cold dry air is here, no matter what the outside temp is-- so we can tune EFI for winter use! 11/6 & 7 Jim Burlow & Torrey from Salt Lake City with their own EFI controller, testing on boosted and NA M1000 sleds. 11/8 Casey Mulkins w/ new ProRide 800...
The 1000 cubic ft cold room is insulated and the exterior drywall is finished. The first of the three compressor/ evaporator units is fired up, and for the first time I could feel cold air coming through the 8" diameter duct into the dyno room! Todd the HVAC guy is...
The new 902 system is up and running perfectly. All new electronics, computer circuitry, and control console that took a couple of weeks to install properly. The operating system is quite different from the old 901 (24 years old), and has taken some getting used to....
bigger turbo, intercooler, extra injectors, cnc porting, turbo cams, etc etc
still working on the air refridge system, est fireup for cold intake air is 7/15.6/30-7/6 pro snoX race engine development, cams off7/8 Glenn Hall Z1 finalizing cam timing/ tuning early AM to beat the heat.7/9 Jess Pych Cat grassdragracer tuning for Syracuse.7/10...
My $20,000 crate of new SuperFlow 902 electronics is here now, ready to be installed on my dyno system. Then last Friday I picked up the engine intake air cooling system from our pal Wayne Stoutner, and that will be my first project. Some...
5/2 Finish up YZ450 testing including one with modified head and bigger cams, stock vs GYTR vs Jardine header, big difference. 5/7 three full mod WaterX sleds tuned to max HP--ProX800 built by Tripod Sr., ProX600 built by Flannery, Rev600 built by Bill...
The SF901 engine dyno that we've been using for 22 years is a great system, but needs to be updated with the newer SF902 electronics. The computer boards inside the control console are from a 30 year old design, and there are chips on the boards that can't be obtained...
Sorry guys, I'm talking lawnmowers here! I bought a 6.5 HP Toro 22" walk-behind rotary mower several years ago. While I enjoyed the variable speed rear wheel drive, the engine pissed me off. I've been mowing lawns for over 50 years. I know what a 5 HP...
3/3/2010 518ers Todd and Mark troubleshooting a troublesome XP800R stock hilldragger3/4 518ers Richie and Tom tuning on their Crankshop twin piped XP800R mod racer3/5 315er Pat Herbert dialing carbs/ timing on Crankshop Polaris 990 mod hilldrag sled3/9 Full Power...
DynoTechJim’s theory of causes of the infamous stumble, and possible ways to rectify
Up and running dandily now, tuned a couple of sleds perfectly over the 1/16 and 1/17 weekend. All is good now...1/18 NY Speed Paul Mouyos with a couple of big Cats including one XFire 10000 that has been driving us nuts like Rich Hoag's F1000 Firecat. Intermittent...
It often pays to be cordial with the people one does business with. I have a 22 year old SuperFlow dyno that occasionally has understandable issues both mechanical and computer related that causes testing/ tuning to cease. So last week, when my dyno had issues that...
This is the worst time of year for this to happen--cold air is here now, and this is when EFI tuners need to tune, and when lake racers with carbs like to tune!Apparently a short in the airflow meter extension cord fried a small $1200 circuit board last week and lost...
Rush, Etec, F6, Vector EFI, D8, XP800, F8, Apex, XF1000, Z1, Nytro, Cat SnoPro500
spring steel reed petals, no more signs of fiber reed breaking/ burning
12/1 Casey Mulkins new Rush 600, then his own ported D8 with pipes and stuff:12/2 Boyd with a Mach Z mod12/3 Sled Shop Joe Parfitt, cams maybe off12/4 Canadian madman James with his new F8 tuning with PCV12/7 Shootout sleds today the Polaris Rush and D8, SkiDoo Etec...
F8 stock vs Crossfire stock, then both with D&D Y pipe and D&D single pipes, stock factory muffler
Scheduled this week--Thursday AM Casey Mulkins is bringing a new 2010 Polaris Rush 600 for stock evaluation with temps in the 30's F. If it's rich as we expect we will lean out mixture with a new power Commander V Autotune. Then we'll have Casey's own D8, upgraded...