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Buell Forum » XBoard » Buell XBoard Archives » Archive through April 22, 2004 » Velocity Stack change out anyone? « Previous Next »

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Jasonxb12s
Posted on Friday, April 16, 2004 - 08:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Just wondering if anyone has changed their stack to a non-rubber version. Do you experience anything noticeable?
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Dyna
Posted on Friday, April 16, 2004 - 08:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

OH BOY!! Here we go again.

Jason, yes several folks have attempted & Bubba even dynoed one & it made absolutely no difference at all. Save your $$$.
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Jasonxb12s
Posted on Friday, April 16, 2004 - 10:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Here we go again...Thanks
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Jerseyguy
Posted on Monday, April 19, 2004 - 04:37 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Jason, I CNC'd a perfect duplicate of the rubber stack out of aluminum billet some months back - at great personal expense I might add. Brian dyno'ed it for me and it performed damn near EXACTLY the same as a stock one. Search back & you will find the thread including photos of it. I'm still working on the concept but I won't bring it up until its proven to be better.
Steve
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M1combat
Posted on Monday, April 19, 2004 - 09:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

The key words being "duplicate of the rubber stack". There was talk in that thread about different shapes but as I recall it was decided that a "perfect" shape would probably give you no more than a few HP on an already very modified bike.

Or at least that's what I remember : ).

Also, most thought that the perfect shape was very close to what Buell designed, further reducing the possibility that the gains would have been on the upper end of our expectations.
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Kds1
Posted on Monday, April 19, 2004 - 10:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

M1,
You may very well be right , but I will add that 2 riders have said that the bike definitely felt faster, they knew nothing about the stack being changed....( new design )It probably won't be any better but we'll see later in the year...KEVIN
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M1combat
Posted on Monday, April 19, 2004 - 11:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I'm all for it : ).
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Kds1
Posted on Monday, April 19, 2004 - 11:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Thanks...I'm trying not to be a thread killer, so post after me please...again....KEVIN
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Spooky
Posted on Tuesday, April 20, 2004 - 12:31 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

This thread is dead............now that I've posted.
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Jwz7
Posted on Tuesday, April 20, 2004 - 01:08 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

has anyone heard of the svvs by brion-james inc.
they have a velocity stack that is sorter and a
larger radius and they posted there dyno charts
all testing was done on a stock xb9r and with a race kit.the dyno run with the race kit made
over 8 rwhp if you want to check it out and see
the dyno figures go to xb9r@groups.msn.com
and click on xb9 performance mods they have
all the pictures of the stack in the bike and
there or alot of other good performance products
on the site for all xb engines.
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Darthane
Posted on Tuesday, April 20, 2004 - 07:05 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Jwz7 - it's far, far better if you simply ignore those fellows. Trust us.

The 8RWHP is an ABSOLUTELY ridiculous claim. Good exhaust/air filter/ECM combos aren't making that much of a gain.
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Jerseyguy
Posted on Tuesday, April 20, 2004 - 09:35 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

M1 - Yeah, my theory was that a perfect replica of the stock rubber stack, but in aluminum would flow more consistently and not deform under load or heat. I was proven wrong, my bad. It cost me almost $1k when all was said & done. It sure is pretty though!

We are working on a different shape now and no, its not a copy of somebody else's idea. When it's proven to be good or bad I will post the results, fair, balanced and unafraid. If it's good enough to try to sell, Blake will be the first to know and you all will be the second.

As far as questionable claims by others go - just use your own common sense and decide for yourself.
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M1combat
Posted on Tuesday, April 20, 2004 - 11:14 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Understood : ). I remember the thread quite well : ). I certainly think there are some gains to be made, but I really think they'll be MUCH more apparent on something like an 88" Nallin engine (Which is where I'm headed).
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