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Oh yeah!

Started by davit, Mon 05, Sep 2016, 20:07:08

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davit

https://www.youtube.com/watch?v=IbBg6zuvppQ


Started with unmolested Standard/Tourer pipes.  I never was happy with the sound, it just didn't work for me on a hot rod bike.

Replace the stock tips with 18" truck stacks, sounded nice but a little raspy.

Added Grumpy's tips, looked great but they raised the pitch and resonated.

Cut the piggies leaving 1-1/2", sounded nice but resonated like hell.

Restored the piggies but increased the diameter to 1", using copper pipe.  Deepend the pitch and cleaned up the raspiness, and no resonating.  I am extremely pleased with the results.  :)

mello dude

* There's someone in my head, but it's not me.......
* Mr. Murphy was an optimist....
* There's a very fine line between Insanity and Genius.....
* My get up and go, must have got up and went.....

BonS

The do sound good.  :cooldude:

Hook#3287

Sounds good :cooldude:

Did you add the 1" by just going over the 1 1/2" pipe you left when you cut the piggies?

Did you sweat them on?

davit

#4
Thank you thank you thank you! :)  Although I did borrow these ideas from other threads so can't take the credit for myself.   

I used a 1" x 3/4" copper reducing coupling, the 3/4" coupling is a snug fit over the piggies, then drilled and tapped for a 6-32 screw as I had in reply #10 of this thread:  

http://www.valkyrieforum.com/bbs/index.php/topic,79552.0.html








Stock piggies:



Hook#3287

Davit

Ok, so now you got me cornfussed.

Your pictures are of two different bikes, right?


davit

No, same bike.  The last photo is after installing truck stacks, but before installing Grumpy's tips.  This setup actually sounded pretty nice with a deep growl, but was a bit raspy.