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 significant.
11/4 F757 big bore trail mod twin Monster pipes for Boondocker tuning., Stock F7 with Bikeman pipe mod and 2 degree key. The monster twins from DD were a handful to dyno tune since they hit so hard at valve opening. See our test results on DTR. But with the larger 757 the transition from valve closed to valve opening was less abrupt, we got good numbers from 5000-8400 rpm. The 757 easily added 10 HP over the stocker we tested earlier on DTR, and was way smoother at valve opening. The Crossfire F7 was bone stock with only a 2deg key and Bikeman stock pipe mod. Also had a D&D pack to drop top end fuel pressure. We dialed in at 153.8 CHP tuned to perfection, these were 20 second runs, hot engine with 87 octane gas. We continue to raise the bar on these engines.
11/6 Mach Z twin, Boondocker tuning, Crankshop twins with crankshop domes. Mike dialed in his bone stock 05 with 07 programming from Jimmy Cooper, made 190 HP on Canada safe setting .70 lb/hphr BSFC, then 200.1 HP on our pump gas, .61 lb/hphr. It will take Mike 5 seconds to switch from Canada safe map to gonzo drag map.
11/6 Got a call from Fred at Lightning Pro, Bob’s nightmare turbo kit was sold to someone else, the 48 mm Mikuni was bought elsewhere so the goofed up carb was someone else’s issue. Their standard kits come with a smaller turbo, a 48mm carb and Fred is going to try a hood mod to see if they can get instant acceleration instead of a lean-bog hesitation like we got here. That Rajay turbo is now built by turbonetics in CA, the same “suckthru” turbo I ran on my KZ1000/1327 in 1979. Also Fred indicated to me that in lieu of an intercooler their current kits use methanol/ water injection to cool compressed charge and help stave off detonation. Sean Ray and I ran 50/50 methanol water on a XC700 turbo non-intercooled, made 200 HP for 20 seconds on 93 octane pump gas. That will surely work if engineered properly.
11/7 Sean Ray final dyno testing Pol SnoX mods, no cameras Tim Benders’ Hentges Racing crew chief Sean Ray’s Polaris racers won majority of holeshots, had most HP won some races (Brett Bender swept semipro class). Sean races the dyno, matches acceleration rate, pipe center section ex temp from start to finish and he knows exactly where his HP peak is (to clutch to) every 100 ft.
11/8 D&D Dale Roes & Scooter DynoTech verifying F1000 trail port w/ Ypipe and D&D single on my pump gas, lots of live cameras.Very incredible HP out of single pipe, better than best ported pump gas twin pipe MachZs so far. Will post these results with stock pipe and DD single pipe also compare stock muffler to DD muffler including dB.
11/9 518er Bikeman trail ported F7 Boondocker tuning, also a Hauck trail mod 02 Yam Viper. The Bikeman trailport/ pipe mod was excellent, stock muffler needed Boondocker to add enough fuel to be trail safe at .70 158 CBHP, on lakerace boondocker map made 162 HP ay .58 or therabouts. Hauck Viper big bore 780 was plagued by low MPH, but had aftermarket long travel suspension. We dyno’d at 166 HP very solid, broad HP curve on top with Simons pipes. If sled is slow, it’s not from lack of engine HP. That long travel supension might ride cushy, but must suck up serious HP.
11/10 Ed Sedlmeier dyno tuning his sons’ Polaris SnoX mod sleds, probably cameras off unless he doesn’t notice them on.
11/11 Sat AM Rich Hoag, Firecat Sherlock F8, SLP twin pipes for Boondocker tuning SLP twin pipes that Rich had were too tight for this engine, made good HP on quick dyno tests but lost HP on longer 15 second runs. Made best overall long run HP with single pipe (tested Bikeman pipe mod and Bikeman fatazz stamped pipe with D&D ypipe almost identical). By going back to single pipe Rich was able to run with his stock fat 04 ECU with D&D pac to choke top end fuel flow to optimum, plenty for 160 plus on pump gas, the Boondocker necessary for twins can be sold to someone else.
11/13 Rod Rimco two trail mod F7s for Boondocker tuning, pipe testing Rod only brought one, F8 built out of stock cyls by Best Performance a small shop in Mercer PA. This is the highest single pipe F8 we’ve dyno’d over 170 HP for 20 seconds on pump gas. Some guys are sick of seeing so much Firecat stuff but this was exceptional and deserves a page on DTR. The Bikeman stamped Fatazz pipe worked dandily.
11/14 HTG Rob Schooping brought Danny Marsh’s F1000 to dyno after Rob had ported/ cranked up compression fitted with Boondocker. Cameras were off . Only had stock pipe made over 200 after Boondockering. Incredible again. I will post a short CatFest article with the BM F7, Best Performance F8 and HTG ported F1000.
11/16 Jerome Pinkston I didn’t write down what he’s bringing to tune. did not arrive as scheduled
11/18 David Patrick F7 w/ ENGINE TECH porting Bikeman pipe mod, watch on dynocams for close to 160 HP on 87 octane gas. not Bikeman porting, a company called Engine Tech in Canada, stock head made 161 and change with Bikeman pipe mod, need to compare to Bikeman ported F7 tested last week, looks close.
11/20 Jeff Gorski, HTG ported F7 pump gas Jeff’s F7, stock compression and 2.5 deg key made 157, I think crossfire fuel flow is higher that Firecat, and maybe timing is relaxed as well. Boondocker tweeked fuel to perfection. But still Jeff will be happy with 152 HP on UpNord map (10/1 A/F ratio) and drag-your-pals map at 12/1 with 157 HP. Hes’s contemplating a .015 swipe on the head sealing surface, surely take him over 160 but I’m hoping he will ride it first, this is still big big HP on pump gas.
11/21 AM Art Andre tuning Supercharged Apex PM Damien bringing MachZ Bikeman 1100.Art’s bone stock Attak made 240 plus with good gas, but fuel pump capacity is lacking. I posted his numbers on DTR, should upgrade to Boondocker controoler, may be back to map Boondocker with higher capacity pump. Art’s son Damien blasted n2o on his1100 Mach Z but he also is limited by stock fuel flow of fuel pump/ injectors. I recall we got 150 lb/hr on Billy Howard’s Mountain Mach, but Damien’s Mach Z was tapped out at 140 lb/hr fuel flow so he must go easy on his nitrous nozzle sizing of his Boondocker n2o ki.
11/22 Dales Roes and Scooter dyno test 07 F8 trailport with stock Y D&D Y, stock pipe and D&D single pipe. made 120+ lb/ft and 178+ HP on 87 octane for 20 seconds, tested with D&D Ypipe stock pipe, stock Y pipe and stock pipe will post details on DTR shortly.
11/24 [Justin Fuller (former Bender engine tech) Now Full Power Perfomance dyno tuning 200 HP SRX mod he built, with Boss Noss N2O (I think Justin is also taking over Bender’s Turbo business.) Moving to 12/1 to test
PM Eric and Tom from Tom’s RV repair, another of Tom’s F8s this one with D&D Monster twins for Boondockering. Tom has moved to Lake Placid, now his business is Performance Engine, this was Eric’s Shootout Sled from last year (had fueling difficulties there), this time he was several HP higher 174 and same torque 113 as last year with less timing and less compression. Also we found a nasty midrange 15-1 spot that was biting Eric’s piston(s) last year at part throttle, we spent an extra hour tweaking Boondocker low settings in midrange 5000-7500 trail cruising to convert 15-1s to 12-1s.
11/24 AM more RKTek 827 stuff to test, pipes, more radical porting, all in AM before Tom Arrives. Both engines were 170 plus on 93 octane with hot stock single pipe. That’s three in a row dandy 827 engines from RKTek.
11/28 two firecats, one F7 one F6 from Canada don’t know if cameras will be on or off! even some of the 500 ft drag ECUs can benefit from dyno tuning–we dropped fuel pressure at high revs on one on the bone stock drag sleds, picked up about three HP…
11/29 10am SkiDoo 860 twin big bore, single pipe possible shootout Trail Mod contender. CJ Powersports in Boonville NY created this dandy trail mod, Dynoport single with stock muffler and 12/1 A/F ratio was well over 170 HP. Refused to lean it down any more than that.
11/30 Gene Hurin and Rob Schooping coming with three sleds: Gene’s ProStock1000 and Trail mod 1200, and Rob’s single pipe IQ Shootout Trail Mod entry.
December 2-10 all SnowWeek DTR Shootout stuff, planning to dyno Shoootout sleds Mon Tues Wed, planning to go to D&D’s open-house in Loweville Thursday. Shootout Friday. Hope for snow.