Sept 28-Oct 1 pro racer dyno testing dyno cams off.
Oct 2 Jim sitting at dyno console punching in data for Full Power stage 4 RX1 and stock Nytro to be posted on DTR website 10/2.got the Nytro done, maybe stage 4 RX1 by Friday…
Oct 3 Justin Full Power taking another crack at 300 plus with Apex stage 3. Justin was hurting for fuel flow last session on Apex St3 turbo, back again this time his st3 Apex easily provided enough fuel for 350 plus hp, but was limited to slightly less due to turbo sizing/ camshaft timing.
Oct 4, aftermarket company experimental testing, dynocams off. Another 1000 Cat stocker from BMP, this one Jake Jenkins’ new Crossfire w/ reeds, head, key, single pipe/ Ypipe made 240 plus on Jim Cooper’s race gas. Still trying to figure this situation, waiting for field testing this week. Jim Cooper was next one more time with his troublesome PS1000 SkiDoo. This time his lectron carbs were tied together with 5 lb of steel brackets. Now fuel flow appears perfect, 140 lb/hr smooth top end fuel to support Jim’s 275 CHP. Maybe he can make it down the track next weekend.
Oct 8 two F7 trail mods for Boondocker tuning record 85 degree made winter tuning less than optimal, cancelled until 10/11 cooler weather…
Oct 9 Sherlock ported Mach Z, Boondocker tuning for trail/ lakeracing, testing latest Boyeson reeds.
Will try to post results next week.
Oct 11 George Pointer solo Boondocker tuning firecat trail mod. F7 big bore cat piston F8, Fatazz pipe D&DYpipe, stock cut head, made 170 plus with 1000 ft boondocker setting, 165 plus with upnord boondocker setting at close to .70 chicken safe.
Oct 13 more pro racer dyno testing, cams off.
Oct 14-15 Sean Ray dyno testing new PS1000 Pol twin for Tim and Brian Tyler, engine on dyno motor plate, not sure if dynocams on or off.
Oct 16-19 more pro racer dyno testing cams still off. These greedy tuners want all the HP for all their sleds. Seemingly identical hand-ground mod engines/ sets of pipes all need to be dyno tested/ tuned. Guessing does not cut it anymore.
Oct 20 Sat AM? HTG Rob cant make it with F1000 lakeracer engine in Firecat chassis, Chris Squires/ Jake Jenkins plan to tune this engine with D&D Ypipe and single, Boondocker to get F7 wiring/ ignition to work with lakeracer F1000 w/ big injectors. Then Sun AM or Mon AM test prototype BMP Gspot (named by PTM) single/ BMP ypipe after HTG Rob gets here. Chris and Jake still struggling to get firecat ignition to be happy on F1000 engine. Maybe Monday? Nope I went for a fall motorcycle ride, probably the last 80 degree day of the season, so put the dyno session off until Thursday/Friday–still had issues with the electronics–ex valves refused to open. Tried Supereme Tool electronic valve fooler, locked valves open and the ECU didnt seem happy with that. Possibly the F7 stator/ F1000 flywheel combo was a mismatch? Struggled for 5-6 hours thursday then pulled the sled off to be rectified at home. Chris and Jake will use degree wheel to compare spark timing on F7 to what we have on this hermaphrodite, get initial spark timing correct, make sure valves open on the jackstand, then come back again for another attempt.
Oct xx Justin Full Power back again with st3 Apex turbo, last session has a missing temp sensor that may have retarded timing, looking for 400 this time.
Oct 23 Pete Nixon with ported MachZ and 4-injector Boondocker N2O system looking for 300 plus.
Boondocker system had issues with connectors etc, but when we got things working we made 240 plus but fuel pressure had dropped to 29 psi and we had to quit. This means fuel pump is defective, since we’ve seen here 240-300 hp on MachZ juiced engines with nearly full fuel pressure, injectors wide open. Jimmy Cooper was here to help tune (with his BRP computer absolutely a must for max HPing any late model SkiDoo)….Doo dealer Jim will have a new fuel pump installed this week, if we get done with the F1000 BMP pipe deal thursday, we will retest this BD N2O system for Pete on Fri AM. If the N2O hoses/ nozzles have the capacity, 350 is surely within reach. Watch the DynoCams Friday. Cant make it Friday, will try again in a week or so.
Oct 27 Sat Tom Mango and pals with three trail mod sleds for dyno tuning.Two Toms make it easy to remember names at the dyno, Mango and Leonard one ZR900 carb trail mod, one stock F7 with BMP pipe mod. Incredible HP on both, this F7 was one of maybe two that made 152 plus w/ BMP pipe mod, key and a touch of fuel pressure drop. Tom M’s ZR900 was a very nice conglomeration of stuff that made 180 HP on pump gas. I must post the details inside.
.Oct 29 11 am Chuck Hammara and pals stopping in from Shootout with a PS800 SkiDoo dragsled, quick dyno squirt.