I had an incredible time at Jims shop. We had our ups and downs but kept to the task of getting the bike ready for Bonneville.
The bummer of the entire trip was awaking the morning of the 17th to an email saying that the BMST was canceled due to salt conditions.
We continued on with hopes that we may be able to hit one of the other sanctioned events and got the bike on the dyno with the first run with long pipes pulling around 37hp and the power curve falling off around 7800 rpm.
Jim went to work programing the ignition and cutting the pipes down a few inches and got a run over 40hp. We called it a night and slept on it and came back the next morning fresh and ready to go.
The next day we were able to get about 44hp out of it but still have the power curve dropping off around 7,800 rpm.
We decided that it was time to go to the pipe length and size and ended up increase the diameter of the pipe and shortening it to a length that we all thought was ridiculous and what do you know. Power curve changed and we were once again going in the right direction.
We ran the bike up once again and this time we were able to gain a couple more HP...
Lets try one more thing, another increase in HP with the power curve running up to 9200 rpm.
I can say that we had a great time tuning the bike and every time we made a change we were able to see the increase and the HP on the dyno going in the right direction. Its not about the number on a dyno due to the fact that all dyno's record HP in their own way but the end result is to see gains when you are tuning on the same dyno and know that you are going the right direction.
I could not have done this without Jim and his expertise on building high horse power reliable Norton motors.
Cheers to you!