How To: Roth Velocity Stacks Installation
- Thread starter CrazyBiker
- Start date
nucmedman
Member
question
like the stacks did you change the butterfiies (believe that's what there called) if so where did you get them and whats the the plus
like the stacks did you change the butterfiies (believe that's what there called) if so where did you get them and whats the the plus
FZ1inTX
Adminstrator
Graves, Copperdawg or Ivan's all have them (not 100% sure about Graves)....
..... or you can mod them yourself. Remove them, score the edge to mark a 38mm diameter ring, cut close to the line with snips (very soft metal and easy to cut), then stack all four together with small nuts and bolts and file the edges smooth down to your scored line all the way around. Take each one and smooth the two faces on some fine emery cloth to remove any edge burrs... install!
They shift some available HP from the very top end down to the mid range where we live and ride daily. You do lose a tad in the bottom end. Just be sure your idle is set for 1200 to 1350 RPMs and it all washes out.
If you are going with the stacks, I'd recommend headers, air filter and airbox mod to let the beast breathe.
..... or you can mod them yourself. Remove them, score the edge to mark a 38mm diameter ring, cut close to the line with snips (very soft metal and easy to cut), then stack all four together with small nuts and bolts and file the edges smooth down to your scored line all the way around. Take each one and smooth the two faces on some fine emery cloth to remove any edge burrs... install!
They shift some available HP from the very top end down to the mid range where we live and ride daily. You do lose a tad in the bottom end. Just be sure your idle is set for 1200 to 1350 RPMs and it all washes out.
If you are going with the stacks, I'd recommend headers, air filter and airbox mod to let the beast breathe.
nucmedman
Member
thanks
thanks would like alittle more mid range but sence only 500 miles on her haven't got to see what see will do
thanks would like alittle more mid range but sence only 500 miles on her haven't got to see what see will do
Graves, Copperdawg or Ivan's all have them (not 100% sure about Graves)....
..... or you can mod them yourself. Remove them, score the edge to mark a 38mm diameter ring, cut close to the line with snips (very soft metal and easy to cut), then stack all four together with small nuts and bolts and file the edges smooth down to your scored line all the way around. Take each one and smooth the two faces on some fine emery cloth to remove any edge burrs... install!
They shift some available HP from the very top end down to the mid range where we live and ride daily. You do lose a tad in the bottom end. Just be sure your idle is set for 1200 to 1350 RPMs and it all washes out.
If you are going with the stacks, I'd recommend headers, air filter and airbox mod to let the beast breathe.