Sorry I got into this a bit late, I had my server down, but I hope you can tell me
what this dip is and what the green line means in the test shown on "scott.jpg".
I do understand that if you run a S7K with a fully operational V-boost you would get
the curve shown on the red line (most likely the bike would be unrideable), but has
anyone tested the difference between a full S7K with interconnecting tubes and a S7K
with a fixed open V-boost? Need to now how much horsepower loss you can expect from
the V-boost more restricted passage way. Knowing the Max a bit more it could be
anything, meaning that maybe there is no power lost or even a slight improvement ( I
don't know ).
I find the Max very prone to behave very differently with the slightest modification
to the carb setting and normally it catches you unaware. Specially if you follow other
peoples experiences. As someone said earlier on, if your bike performs as you think it
should with plenty of torque and loads of top end power, you are better off leaving it
as it is.
My last improvement on the S7K, which I think everyone should take a careful look at
is an undoubtful gain of midrange you achieve by inserting the standard carb stacks
inside the individual K&N filters. This modification was hinted and fully explained to
me by Steve Detamore and I carefully followed his instructions. The result is
unbelievable since I got back all the mid range power lost when I installed (beware of
this) not the Stage 7 Kit but the individual K&N filters. I was quite happy with the
standard box, K&N standard replacement filter and no "Y" installed.
I have no way of testing top end power where I live, but I'm sure it will also benefit
from the stacks being where they should. Please ask Steve and try it yourselves, since
as far as I know it is the cheapest and easiest mod. to regain lost midrange power in
a big way. I also want to remind you that every person, every Max, every situation can
differ and make results different, but you must experiment and get it the way you want
it.
Thanks Steve
Regards, Charles ( [EMAIL PROTECTED] )
----- Original Message -----
From: Terry and Pat Hayden <[EMAIL PROTECTED]>
To: V-MAX TECH LIST <[EMAIL PROTECTED]>
Sent: Saturday, April 22, 2000 9:34 AM
Subject: Re: Stage VII and V-Boost
> I don't have the web page done but Scott Mellor's dyno chart is at:
> http://www.geocities.com/MotorCity/Speedway/2476/scott.jpg
>
> It is interesting to see how the V-boost causes a dip on the stage 7. This
> is fairly common judging from some of the other S7/v-boost dyno's posted...
>
> Scott, was the stage 1 done with normal V-bbost or always open valve?
>
> cheers, Terry
>
> -----Original Message-----
> From: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> To: V-MAX TECH LIST <[EMAIL PROTECTED]>
> Date: Friday, April 21, 2000 10:01 AM
> Subject: Re: Stage VII and V-Boost
>
>
> >Yes i compared them closely. In fact they are printed on the same sheet.
> The
> >dyno printed out the figures hp at speed rather than rpm which kind of
> >stinks. The way they did it was a 4th gear roll on, at 50 mph the stage 7
> >increases above the stage 1 nice and steady across the entire range. no
> dips.
> > below the 50 mph mark the stage 7 is right on top of the stage 1 graph.
> >never below . He actually made a run with the vboost in stock automatic
> mode
> >with the stage 7 then there was a bad diparound 55 mph.
> >I will be posting this chart on the 120 hp club as soon as I figure out
> how.
> >scott mellor
> >.............................................
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> >.............................................
> >
>
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