More Response Re: <VV> Re: Turbo set up--was mileage

[Norman C. Witte]

Frank, from what you say, wrapping or coating the exhaust results in a
significant improvement.  I will probably not generate any emperical data
for anyone because I am going to build my motor, put it in the car, and
after it's tuned, unless something goes tragically wrong, there it will
stay.  I'm more interested in driving it once its done that tweaking and
retweaking.  That is why I've been asking so many questions as of late.  I
am not going to have the opportunity to fix mistakes, so I am hoping to
learn from every one elses'.  What a crass user of people!

Norm

> -----Original Message-----
> From: virtualvairs-admin@corvair.org
> [mailto:virtualvairs-admin@corvair.org]On Behalf Of FrankCB@aol.com
> Sent: Friday, November 19, 2004 4:53 PM
> To: ncwitte@wittelaw.com; virtualvairs@corvair.org
> Subject: More Response Re: <VV> Re: Turbo set up--was mileage
>
>
> In a message dated 11/17/04 5:05:58 PM Eastern Standard Time,
> ncwitte@wittelaw.com writes:
> <SNIP>
> For example, I don't know how much of an effect I
> will get from having the exhaust coated.  Will this result in
> a modest or
> dramatic increase in boost?
> <SNIP>
>
> Norm,
>     Well, many of the things you cite are difficult to quantify as to
> results.  However, I can speak about what happened when I
> wrapped the crossover pipe
> between the heads and the pipe going vertically into the
> turbo.  As measured
> on my Sears "Tune-Up" gauge, boost increased from 8 psi to 10
> psi driving up
> the same long hill on the way to work over a number of days.
> Also, the boost
> "came in" a lot quicker, although I didn't make a specific
> measurement on that.
> In order to evaluate that, you'll need a data logger device
> that can measure
> the intake manifold pressure change and the time it takes to
> go from one
> pressure to another when going up the same long hill.  Or
> perhaps a G-Tech Pro
> accelerometer can give us the hard data to measure the improvement.
>     Frank "still lots to learn" Burkhard
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