Viper velocity stacks

[Joshua Smith]

Hello all you yamacat gurus. My plan is to put a barcode icebox air intake on my xf7000 but I would like to add velocity stacks as well to get the best flow into the boots. Does anyone know what size velocity stacks I would need? Any help is much appreciated!

 

[ClutchMaster]

This outta do the job nicely

 

[Joshua Smith]

This outta do the job nicely View attachment 155828

Bahaha yes I'm sure that would git-r-done

 

[Yam4Strokin]

Saw these on Ebay.

https://www.ebay.com/itm/Yamaha-SR-...695876?hash=item3daaed7d44:g:TskAAOSwoBtfOodc

 

[Joshua Smith]

Saw these on Ebay.

https://www.ebay.com/itm/Yamaha-SR-...695876?hash=item3daaed7d44:g:TskAAOSwoBtfOodc

Awesome! Thanks for the heads up!

 

[cannondale27]

Awesome! Thanks for the heads up!

If you need pics or dimensions. I have mine out now. I know from past experience that there are Formulas out there for calculating the size and radius for most and where you want the power. Here is one we made for our Cannondales that Dynoed 3hp more than factory with same filter.

 

[cannondale27]

Stock on right. Home made left.

 

[Joshua Smith]

Stock on right. Home made left.
View attachment 156503

Oh wow that's a nice piece of machined metal, you mill that yourself? What are the dimensions of your homemade one?

 

[cannondale27]

Oh wow that's a nice piece of machined metal, you mill that yourself? What are the dimensions of your homemade one?

Buddy made it on a Haas Mill in his garage but its for a Cannondale ATV so just a example. Was made using formulas found on internet. Will look around for them sometime.

 

[cannondale27]

Here:
https://redirect.viglink.com/?forma...profblairandassociates.com/pdfs/Bellmouth.zip

We found the closer to the throttlebody we put the bell the more hp and flow we got. Was Flowbench and Dyno tested. We got lucky right away.