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Old 11-02-2012, 11:44 PM   #1 (permalink)
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Default Velocity stacks?

Is it worth it? Do you feel a difference in power?
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Old 11-03-2012, 10:17 AM   #2 (permalink)
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Considering the benefits of using velocity stacks are only a few percent, I don't think you'd notice any difference in performance. Also I don't think they'd do much for a zx6r because it uses a ram-air intake and has a high capacity airbow. Might make a sweet noise though...
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Old 11-03-2012, 10:23 AM   #3 (permalink)
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It's worth it on a race bike where you're above 9,000rpm at all times. You're going to gain top end but you might lose it on the bottom.

Depending on whose stacks you get you MIGHT see a 3hp gain. 1 is more likely
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Old 11-03-2012, 01:11 PM   #4 (permalink)
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This for my track bike so yeah I'll be at the hi RPM most of the time. I'm trying to decide before I have bike tuned.
Anyways thanks for the reply guys...
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Old 11-03-2012, 01:53 PM   #5 (permalink)
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All it's going to do is move some hp to the higher rpm range. If you're getting it tuned soon and you can get them for a decent price I'd go ahead and buy them. I don't think they're worth it at stock prices if you're not looking for that extra 1/10th of a second that comes up when you're racing.

Brian MC, they work by changing the inlet length and diameter to allow best air flow into the cylinder at max or near max rpm. Stock the bike has to be "tuned" to work well at all rpms. But on the track or racing it doesn't really matter how the bike runs below 5000 or so, because you're only there when you're getting from the pits to the track itself.

It may not increase hp much, but as part of a well set up engine package can make a difference.
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Old 11-03-2012, 02:05 PM   #6 (permalink)
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Quote:
Originally Posted by Sev View Post
All it's going to do is move some hp to the higher rpm range. If you're getting it tuned soon and you can get them for a decent price I'd go ahead and buy them. I don't think they're worth it at stock prices if you're not looking for that extra 1/10th of a second that comes up when you're racing.

Brian MC, they work by changing the inlet length and diameter to allow best air flow into the cylinder at max or near max rpm. Stock the bike has to be "tuned" to work well at all rpms. But on the track or racing it doesn't really matter how the bike runs below 5000 or so, because you're only there when you're getting from the pits to the track itself.

It may not increase hp much, but as part of a well set up engine package can make a difference.
Sev.. Can you recommend me a brand or size? Is it the short ones or long ones? My bike is use for tracks not street or drag race..

thanks
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Old 11-03-2012, 02:08 PM   #7 (permalink)
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Honestly, no. I'm not sure what would be best... sounds like a job for google.
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Old 11-03-2012, 03:17 PM   #8 (permalink)
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Old 11-03-2012, 08:53 PM   #9 (permalink)
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I was hoping to hear from people that have them on their bikes.
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Old 11-04-2012, 11:12 AM   #10 (permalink)
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Quote:
Originally Posted by Sev View Post
All it's going to do is move some hp to the higher rpm range. If you're getting it tuned soon and you can get them for a decent price I'd go ahead and buy them. I don't think they're worth it at stock prices if you're not looking for that extra 1/10th of a second that comes up when you're racing.

Brian MC, they work by changing the inlet length and diameter to allow best air flow into the cylinder at max or near max rpm. Stock the bike has to be "tuned" to work well at all rpms. But on the track or racing it doesn't really matter how the bike runs below 5000 or so, because you're only there when you're getting from the pits to the track itself.

It may not increase hp much, but as part of a well set up engine package can make a difference.
Thanks for the info SEV. Didn't know it made much difference in track machines but makes sense if the revs are gonna be high all the time
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