Dyno print out, stock engine, 22g Dr Pulleys

The baseline dyno run was completed last week. Stock engine, the only change being the 22 gram Dr Pulley sliders and sliding pieces. The engine mileage was 4,500 miles, and the fuel was 'normal' unleaded (95 RON, as opposed to premium 97/98/99 RON etc).

Fuelling is a tad rich at high rpm, which is good. The bump in power should be ignored, as that is a side effect of the transmission fully engaging and having a bit of a flywheel effect. The highlighted RPMs are where the transmission finished fully engaging (32rwhp), and then peak power (36rwhp). Nice flat spread there too with good over-rev.

gavinfdavies wrote:

The baseline dyno run was completed last week. Stock engine, the only change being the 22 gram Dr Pulley sliders and sliding pieces. The engine mileage was 4,500 miles, and the fuel was 'normal' unleaded (95 RON, as opposed to premium 97/98/99 RON etc).

Fuelling is a tad rich at high rpm, which is good. The bump in power should be ignored, as that is a side effect of the transmission fully engaging and having a bit of a flywheel effect. The highlighted RPMs are where the transmission finished fully engaging (32rwhp), and then peak power (36rwhp). Nice flat spread there too with good over-rev.

Gavin,

Next time you see Roy give him my regards, I used to take my bikes there for servicing and tyre fitting when I lived in Tintern. He's a real pro and knows his stuff.

Will do, I'll be going back in a few weeks I hope!

I was about to say "great, another local rider"... then I realised I was thinking of the two chaps from the Royal Enfield groups I'm in! Getting confused in my early middle age!