Re: The Rapp on exhaust

[raf40@oes.amdahl.com (Richard Funnell)]

Scott,

>Glen:
>
>Your post the other day on wrapping the exhaust is not exactly right.....
> AFTER the turbo, a great (practical,?) practice would be to wrap that
>exhaust from the turbo to the muffler, your expression is exactly the
>opposite......   Take a look at some of the NASCAR cars, in fact ALL of
>them.......  Hmmmmm......  That exhaust is wrapped from the head to the tip
>of the pipe, all the way........   In fact, wrapping the exhaust on the turbo
>cars from the head to the tailpipe would be very good.......   However, then
>you are back to my argument on this practice when the car is shut off, at the
>manifold and the turbo, that wrap bcomes the insulator of 1700+ degrees
>F......  But after the turbo, on the tweeked cars esp., you can feel the
>difference......
>
>Without getting the nerd book on exhausts going here, let's just say that you
>will notice the difference in performance on an exhaust that is wrapped post
>turbo, and it's not in a bad way whatsoever......    HINT: the LEAST I would
>do is wrap from the turbo to the cat on a stock exh.
>
>Scott

To gain some of the benefits of wrapping the exhaust, but avoid helping to
cook the turbo, would it make sense to wrap from the cat to the tailpipe?

I did notice some exhaust wrap in JC Whitney.  It seems as if it would be
fairly simple to do using hose clamps every foot or so to hold it in place.


Richard Funnell,
San Jose, California
'83 urQ
'87 560 SL