M8 trike dyno

[bluerim]

As reported in another post, I had  a similar stage two kit installed as Fuel Moto did for my 2017 Triglide    HD heavy breather, woods 222 cam, Powervision tuner.  Supertrapp  dual slip on mufflers (packing removed and 8 discs, closed end cap. ) Jackpot  head pipe. 2-1-2.  I had it dyno tuned on a trike dyno showing 100.31 tq and 96.85 hp.  The chart,  unlike Fuel Motos chart, did not jump up to a very nice tq curve but had a slight dip then rose to max tq by 4200 rpm.  I rode to Sturgis and got Dyno Guys to try to take the dip out.  That did not happen but after a base pull and more tuning I picked up another almost 4tq and 5 hp. Still maxing out at 4200 rpm.  This was on a completely different dyno .  The base pull showed less than the other dyno. Hp 92.53, Tq 96.58.  After tuning the Hp is 97.23, Tq 100.15.   You will notice a substantial difference between bike and trike dynos.

[joe_lyons]

Many things that can change numbers.  Tire pressure (which goes up with heat/time on dyno), oil temp/viscosity, gear, etc.