SidecarFlip
Well-Known Member
I just rebushed and boored a set of Carrilo Rods for a race engine. Nice workmanship btw.
I don't fool with motors as a rule for customers. This guy is a good friend so I did it.
You fought the throttle because the return springs were too heavy. It's an easy fix to install a grubscrew in the housing to negate the spring. Thats all HD does. I do that with all my bikes except the inline 3. It has electronic digital cruise.
Back pressure versus valve overlap versus power curves is nothing more than some extrapolation of pertinent numbers and IMO, has little do do with sound (noise) attenuation on a street bike. Besides, I don't like listening to it and neither do a lot of people, reason why most police departments have DB meters and a standardized test procedure for determining unacceptable noise levels.
The coined phase of 'Loud pipes save lives' is pure BS. The only thing loud pipes do is cause your wallet to shrink today and I have no issue with that.
My Bonnie, because it's primarily a show bike and not a daily driver has, full custom mandrel bent sttainless head pipes with straight through Triumph muffflers and the headpipe length is tuned for pressure wave attenuation to allow a stagnant exhaust pulse to retain the next charge during overlap. It's stupid loud but again, it's for show. My other biles including the Norton have quiet (less than 95DB at 15 feet) exhaust systems.
I'm all about acceptable noise levels. If suppressors were legal in this state, every one of my rifles would have a threaded barrel for a suppressor. They aren't.....
I don't fool with motors as a rule for customers. This guy is a good friend so I did it.
You fought the throttle because the return springs were too heavy. It's an easy fix to install a grubscrew in the housing to negate the spring. Thats all HD does. I do that with all my bikes except the inline 3. It has electronic digital cruise.
Back pressure versus valve overlap versus power curves is nothing more than some extrapolation of pertinent numbers and IMO, has little do do with sound (noise) attenuation on a street bike. Besides, I don't like listening to it and neither do a lot of people, reason why most police departments have DB meters and a standardized test procedure for determining unacceptable noise levels.
The coined phase of 'Loud pipes save lives' is pure BS. The only thing loud pipes do is cause your wallet to shrink today and I have no issue with that.
My Bonnie, because it's primarily a show bike and not a daily driver has, full custom mandrel bent sttainless head pipes with straight through Triumph muffflers and the headpipe length is tuned for pressure wave attenuation to allow a stagnant exhaust pulse to retain the next charge during overlap. It's stupid loud but again, it's for show. My other biles including the Norton have quiet (less than 95DB at 15 feet) exhaust systems.
I'm all about acceptable noise levels. If suppressors were legal in this state, every one of my rifles would have a threaded barrel for a suppressor. They aren't.....