SkiDoo

my new $600 airflow meter might help answer the question–“where’s the HP?”

tested bone stock with tuning, then Aaen, CPI, and DynoPort single pipes, plus DynoPort and BMP Y pipes

after six hours of run time, HP, fuel flow, BSFC (record low at part throttle) A/F ratio (record low reading)

Bondi airbox, Bikeman Ypipe, Bikeman billet head, Boyesen Rad Valves, Boyesen X wings, timing, jetting

pump gas modifications including head, porting, pipe mod, airbox, timing

test data of preproduction unit compared to rev800 DPM early model, plus our own digital scale numbers

compare stock pipe to Bikeman modstock, DynoPort, Straightline plus more HP with less compression

tested with four single pipes, Bondi airbox, max HP for 20 seconds at WOT on pump gas

test stock/ stock pipe vs stock/ Bikeman pipe vs Bikeman trail port with BMP single pipe, all with stock quiet muffler

last test baseline w/600 pipe/ vs revised specs w 800 pipe/vs Boss noss N2O stock and modified

porting/ compression tweeks, back to stock 800 pipe, Boss Noss N20 stock and with modified N2O delivery

tested with quiet stock pipe, compare stock vs bored carbs, all pump gas

stock pipe/ stock muffler on both engines, graph only, tesxt to follow

Cooper Sales & Service SkiDoo 440rev/ 800x transplant, tuning from 142 to 157 HP

pump gas skidoo twins, this time with correct 830 data with corrected ignition timing

this is the test we did during our inaugural LSV session

more details coming this PM

use your free SuperFlow Windyne software to compare/ overlay graph this and other test data SFD files

comparing pitted poor leakdown stock rings to fresh aftermarket top end, compression bump, DynoPort pipe/ can, aftermarket reeds, etc…

jetting, timing, DNE ported cylinders, DynoPort pipe, Bender silencer, tuning done by Sled Shop, Presque Isle, ME