Velocity Stacks....any noticeable difference? - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 6 (permalink) Old 11-24-2004, 04:48 PM Thread Starter
 
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Velocity Stacks....any noticeable difference?

I've noticed that just about every tuner is offering aftermarket velocity stacks along with power gains of around 2-6 horsepower. I was curious if anyone has swapped their's out and if any difference was detected. Thanks.
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post #2 of 6 (permalink) Old 11-24-2004, 06:44 PM
 
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Quote:
Originally Posted by Habu
I've noticed that just about every tuner is offering aftermarket velocity stacks along with power gains of around 2-6 horsepower. I was curious if anyone has swapped their's out and if any difference was detected. Thanks.
I put them on my race bike, I dont care for them, it felt like I was losing the bottem end.
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post #3 of 6 (permalink) Old 11-26-2004, 01:10 PM
 
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I put a set on my bike and took them right off.
I too lost a 1/10th in my bottom end,I still have them and I will exper. with them this next year.They did not do enough on the top end to justify having them in,no 2-6 hp that is for sure.
Dennis
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post #4 of 6 (permalink) Old 11-26-2004, 07:10 PM Thread Starter
 
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Thanks guys. I'll probably just go with a K&N and save my money for mods that actually work.
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post #5 of 6 (permalink) Old 11-26-2004, 07:14 PM
 
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Good call there Habu.
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post #6 of 6 (permalink) Old 11-26-2004, 09:16 PM
 
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Quote:
Originally Posted by Habu
I've noticed that just about every tuner is offering aftermarket velocity stacks along with power gains of around 2-6 horsepower. I was curious if anyone has swapped their's out and if any difference was detected. Thanks.
In the 1960's and 70's, you could see many (mechanical) fuel-injected drag cars. The injectors had velocity stacks sticking about a foot out of the hood. The length was tuned for a very narrow RPM.

Most motorcycles run at a very widespread RPM using a large airbox. Engineers spend a lot of time getting the biggest box in the smallest space. Best not to mess it up with velocity stacks, even if you could experiment with length.
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