But I have had very little trouble like that with the many high boost four cylinder Yamahas and two cylinder Z1s tested with big ma fête en cadeau torque.
Thinking maybe the pipes were off the mark we installed Gary's stock pipe/ muffler, at about 11/1 A/F ratio it makes 96 LB/FT and 141.
So I've acquired a fuel pressure isolator from McQuillen Racing, which is basically a small cylinder with an oringed piston that contains fuel under pressure.12/16 a Canadian DynoTech user with. .Tim flew into White Plains NY Monday, picked up the GM loaner truck, drove to Old Forge, spent the night, picked up a four place trailer 1989 kawasaki concours at White Lake Polaris, picked up three sleds from Big Moose Yamaha/ Arctic Cat, visited/ phoned dealers/ factories regarding .So we waste many hours of machining/ dyno time for zero power increase which is no fun, but helps pay the mortgage.Air bleed hose from top of the head to coolant bottle was routed below the steering arm preventing air from escaping which is a common goof.FuelAB- fuel flow into the engine in pounds per hour.Only had stock pipe made over 200 after Boondockering.Kevin Cameron is a modest person, and rarely discusses his own pasthe seems to be more interested in the backgrounds of people hes with at the time.
As we approach maximum HP at 13/1 A/F, if octane is insufficient, we sometimes hear loud clicks of detonation on our copper tube sensor, and can abort testing before damage occurs.
That misfiring was surely globs hitting and shorting out the plug intermittently.
In the DTR archives there are maybe 30-some TCD (The Cellar Dweller) articles that dealt with then-current issues, to help us understand the mysteries we encountered.Comments 12:00:00 AM Wednesday, December 24, 2008 DynoTech : Dragon 800 midrange pciii mapping II Here's Casey Mulkins' pciii midrange tuning.Coming again with a MachZ twin, CS twins, Boondocker N2O hoping to match Billy Howard's 1250cc MachZ 300 HP with less motor and more juice.So far Ive communicated with D D, JD Powersports, and Arctic Adventures (new.S.I'm hoping that we can connect the Superflow computer screen to the webpage so you can see, immediately the results of each dyno run.Imagine their surprise when they got less power.Being savvy on electronics, bsfc etc I caught this engine builder cheating 250 HP!This one had awful carb calibration, tuned it with needles/ main jets from 46 to 53 plus djhp (DynoJetHorsepower which is a happy correction factor designed to match the numbers from a DynoJet rab finance roller dyno.Preloading the pciii is fairly straightfoward, done with a cable from the dyno computer to the pciii (either on the sled, or off).
Some time during extensive road testing, Justin experienced some plug speckling (detonation) at high speed, top gear after over three miles at WOT!
Also waiting FOR three huge oversize condensers TO cool MY winter AIR system-THE onead were requiring long recovery time.