Archived Posts

Post by **Admin** » Mon Sep 10, 2007 9:11 pm

Ralph, with all the cranking those pipes go through, you might want to make some sort of band to hold them close to the frame as a support. Might use hose clamps, any thing to take the load partially off the mounts. Too bad you can't support the silencers as well, that would probably help immensely. Just a thought or two for you to consider.

Post by **Admin** » Tue Sep 11, 2007 1:49 am

Tuner,

Thanks for the suggestions. One thing I'm going to do is relace the REALLY heavy steel silencers with aluminum ones which I will get this week from TZMike. Reducing the cantilevered load by 2/3 should reduce stress on the weld joints.

Zook-e,

Where did you get the results from so quickly?

Post by **Admin** » Tue Sep 11, 2007 7:39 am

desmocat wrote: Zook-e,

Where did you get the results from so quickly?

I have my ways!!!! Actually from the saveahrma board.

Post by **Admin** » Tue Sep 11, 2007 8:49 am

Ralph, I took your avatar picture and did some math. Those silencers weigh about 85 lbs at their extreme rear ends, figured zero weight at the pipe mount to the end of the silencer, with the weight getting higher exponentially. An aluminum silencer would drop the weight to 31 lbs, carbon fiber, 24 lbs, which isn't hard to manage.

You might try to find a way to cushion mount the silencers to the frame for now, if possible (CB400F, Triumph/BSA older 750 triples have their mufflers mounted like that), just to do two things, lighten the weight load off the end of the pipe and silencer, and dampen the movement of the metal in the stinger/silencer. That should help with the pipes cracking as well.

Just more stuff to work on.

Post by **Admin** » Sun Sep 16, 2007 12:47 am

Ralph in action!

Sandia Classic, Albuquerque, NM Saturday.......

http://www.youtube.com/watch?v=Z6j9ggwz_L0

Post by **Admin** » Sun Sep 16, 2007 10:38 am

Tuner,

I don't understand those numbers. Is there a decimal point missing or are you calculating the bending force at the pipe/muffler junction perhaps?

Post by **Admin** » Sun Sep 16, 2007 11:17 am

Weight in lbs at the volume output point. In other words, how much the end of the silencer weighs sticking out the foot or so past the end of the bike. The more weight, the harder it is to support, and the more problems it causes on desmo's exhaust system. THAT excessive weight, if left as is, needs to be supported separately from the chamber itself, if it isn't shortened/lightened.

Obviously, a lighter and shorter silencer would be one heck of a lot more beneficial than the one he is now burdened with.

Post by **Admin** » Mon Sep 17, 2007 1:25 am

Yahoo!!! I've secured transport for my T500 to the Barber Vintage Festival - I'll be there.

Let's have a roll call for who's going to be racing T500's.

Starting Off:

Ralph Spencer #798

Post by **Admin** » Mon Sep 17, 2007 9:31 am

Make some very light silencers http://www.titaniumjoe.com/tubing.htm

Post by **Admin** » Mon Sep 17, 2007 10:51 am

Take a look at desmo's bike, and the silencer position, WAAAAAAYYYY out there. Even the lightest silencer gets heavier exponentially as its length grows. Not only does he need some serious feather weight silencers, but to move them closer, MUCH closer to the last cone as well.

Post by **Admin** » Mon Sep 17, 2007 1:59 pm

To keep with THE RACING..........

Ralph got that "Yammi" this time!!!!!
http://www.youtube.com/watch?v=gUJACQVpDKc

Post by **Admin** » Mon Sep 17, 2007 5:28 pm

" Ralph got that "Yammi" this time!!!!!"

That is GREAT news, good on 'ya, Ralph!

Post by **Admin** » Sun Oct 07, 2007 6:41 pm

Crap, just found out about Barbers!! Im already scheduled to work out of town that wekend and wont beable to make the short trip to north Alabama!! for the festival. Arrrrgggg. I kept track of the Mid Ohio build off and problems getting folks qualified, registered and rides running. I have to be more attentive and keep track of these Vintage races!

Maybe I can help at the next one? Dofin

Post by **Admin** » Sun Oct 07, 2007 6:47 pm

Ralph, great dedication in getting to Mid Ohio!! Crap, just found out about Barbers!! Im already scheduled to work out of town that wekend and wont beable to make the short trip to north Alabama!! for the festival. Arrrrgggg. I kept track of the Mid Ohio build off and problems getting folks qualified, registered and rides running. I have to be more attentive and keep track of these Vintage races!

Wish you lots of luck at Barbers!!! Maybe I can help at the next one? Dofin

Post by **Admin** » Thu Oct 18, 2007 11:10 pm

Desmocat:
I'm looking in my Nov/Dec '07 issue of Motorcycle Classics and that looks like you in the photo at the bottom right. The article is about Mid-Ohio. Looking good!

Tom

Archived Posts

Barber Vintage Festival - I'll be there

bummed!!!

Barbers

That Looks Like You On Page 37 of Motorcycle Classics