Sat 9/2 still have HTG's IQ600EFI on the dyno, just received a Bikeman modded stock single via UPS today, will test tomorrow, were promised a production DynoPort single w/ temp sensor bung hope that shows up as well. Rob Schooping is coming to see final dyno tests,...
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Mach Z twin 1250 big bore Bikeman kit with oversize cast cylinders
Billy Howard’s dyno test results, variuos Boondocker tuning, and full blast of Boondocker N2O
Hardcoresledder-no more for me
I've gotten inquiries from DTR subscribers about my absence from Hardcore Sledder. For a few years I was a banner advertiser on HCS, and the last time it expired I was a few weeks late with my check, no arguments there but instead of calling me (my phone number is on...
Month of August
STOCKERS WE SHOULD HAVE WITHIN 30 DAYS: Fusion EFI, Phazer, Cat 1000 2 stroke.8/7 Monday 10 AM Derek LaPorte Boondocker tuning an F7 Improved Stock. I love to tune Boondockers--Derek's homebrew 700 Improver took about three hours to hook up all flowmeters/ dyno...
Big Bore Fusion 600/660 Sean Ray’s 660 tested with single pipes/ cans
stock pipe/ stock muffler vs aftermarket singles/ cans also Bikeman modified stock Fusion 600 pipe
Big Bore Fusion 600/660 Graph of stock exhaust vs other pipes/ cans
experiment, trying to figure out how to get jpeg files into DTR articles
Month of July
Tuesday 7/18 finishing up Billy Howard's Bikeman big bore Mach Z twin, cast cylinders, 1250cc. Crankshop quiet can big bore twin pipes, Boondocker tuning. Last session last week was over 156 lb/ft CBT and 230 CHP (should have had cameras on, but Billy wanted private...
Month of June updated
I'm planning Tuesday 6/6/06 to post lengthy dyno results from Shylock44's Fusion 600 with pipes/ airbox mod/ VForce 3 and four petal reeds, and a cut head. Also I have a session where Rich Daly from DynoPort, after he heard his Fusion 600 stampings were not so good,...
Month of May updated
5/4 Thursday, Erich Long Bikeman dyno testing 06 Rev800 stock and with Bikeman single pipe stock muffler, fit under stock heat shields. Also Bikeman trail port 06 Rev800 with Bikeman pipe. Tonight 5/8 I'm baching with my seven year old son Marty while his mom goes to...
Stock sleds needed for drive belt testing
I'm in the process of putting together a dyno test program for aftermarket snowmobile drive belt performance comparison.The concept is to take a stock sled, dyno at crankshaft like we usually do, then install drive clutch and driven clutch, slide the sled forward on...
Week of 4/9/06 and beyond
4/9 Sunday AM Jimmy and Lynn Cooper dyno tuning a HTG prostock 1000 That was John Cleveland's Price stock stroke 990ish XCR triple w/ Jaws pipes, those of you who watched saw a classic tuning session jockying MSD timing, Lectron jetting wound up with 253 HP.4/11...
week of 3/26
Only dyno scheduled this week is Thursday 3/30 10 AM, ProX800 ported with SLP twin pipes, XC600/660 big bore I think SLP ported, 3 sets of twin pipes to test, several CDIs.Finished both sleds in five hours, 800 made about 170 HP, 660 close to 150 but the 660 pipe...
week of 3/19
Thursday 3/23 3:00 pm, dyno tuning a troublesome XC700 stocker w/ SLP pipes Internet connection disabled by lightning, cameras should be running again tomorrow. XC700 was dialed in, jetted timed perfectly, plus took off loud can put on stock muffler added 3hp.Friday...
05 Mach Z trail mod HTG ported pump gas engine w/ CS twins
tested with Vforce reeds, stock reeds, then a blast of Compucar N2O–check out the airflow CFM
05 Mach Z trail mod stock reeds vs VForce3 reeds
compare airflow CFM and HP of reeds on HTG trail ported MachZ, Crankshop twin pipes
weeks of 3/5 and 3/12
Monday 3/6 AM more testing on yamaha motoctross bike w/ aftermarket silencer.Mon 3/13 nothing scheduled from here on out. Jimmy Cooper planning to stage tune a sdi600 this time with lower compression and added timimg plus we can dial in the Skidoo sdi600 shootout sled...
weeks of 2/19 and 2/26
I forgot to mention on 2/14 we spent four hours boondockering (and installing a key) with Sam from South of Detroit, a Bikeman F8 with BM single and stock muffler came up with four beautiful Boondocker fuel curves, HP from 155 to 161, posted power/ fuel curves on...
boondocker carbed N2O assessing fuel flow/ time/ HP
float bowl pressure rise is slow, compromises in tuning are necessary for engine survival
boondocker carbed N2O boondocker’s carbed N2O fuel flow analysis
steady state dyno, NA vs button pushed, check time seconds vs fuel flow rise/ HP rise and drop
04 F8 EFI tuning session Bikeman F8 w/ Bikeman mod stock single pipe
four Boondocker maps, four dyno results safe for 87 octane to 93 octane, long or short runs