Thanks Scott,
Very interesting facts about Stan's bike, wonder what makes the difference. One thing
is clear, having the v-boost which I'm sure he has, mid range is unbeatable.
It's good to know that the stacks on the VGAS have some protection, but to my
understanding they are not placed technically speaking in the best of places, since
the stacks need a rather undisturbed air surrounding them to make the best linear flow.
Where the VGAS stacks are placed, not only turbulent air will come in, but also some
venturi vacuum effect from the side flow created as you speed the bike will surely
have ill effects on the performance. Of course on the dyno and without a fan in front
of the bike the air conditions are perfect for this set-up..........
Best regards and thank you again for the information.
Charles ( [EMAIL PROTECTED] )
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: V-MAX TECH LIST <[EMAIL PROTECTED]>
Sent: Saturday, July 08, 2000 6:58 PM
Subject: Re: VGAS
> I beg to differ. On the issue of the velocity stacks, you can change the hp
> torge curve by changing the lenght of the stack. My bike makes 131.8 and 86
> lb/ft of torque with the 4" stacks. With the 2" it makes 129.8 and 88.7
> lb/ft of torque. Some bike do loose a little in the mid range but mine did
> not. I has no dip at all. You now have clean cool air running that is not
> muddied up by a tank cover running through a match ported, polished
> manifold. I sent my dyno run to Terry Hayden a couple days ago so you should
> all be able to see it soon. You are also going from a 35mm carb to a 39mm.
> There is no vboost at all on the VGAS system either and it does include the
> filtering bonnets that go over the stacks.
>
> I had the luxury if you call it that of trying to beat out Stan P. numbers.
> Stan(as far as I know) has the highest HP stock VMAX retaining the air box
> around. With a stage 1 setup and a Hindle pipe his bike makes almost 127 hp.
> It has unbelievable mid range too. Even with VGAS on my bike, Stans bike
> makes 2-4 more hp than mine up to about 5500 rpm and then mine pulls away by
> about 6 hp till redline. Stan's bike is unbelievable strong very much the
> exception not the rule. Although it was never dynoed stock I feel fairly
> sure that it would have made 118-120 before any mods.
>
> I had the same hesitation on VGAS when I first read about it. Now I have it
> and I am a believer.
>
> Scott
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