<VV> RE: JetHot coatings on turbo exhausts

[Norman Witte]

Jim, thanks for the response.  This is exactly the information I was
looking for.  Did you also have them coat the exhaust turbine housing?
Would this be a good idea?

Norm 

> -----Original Message-----
> From: Jim Simpson [mailto:simpsonj@bellatlantic.net]
> Sent: Wednesday, June 30, 2004 7:27 PM
> To: ncwitte@wittelaw.com; virtualvairs@skiblack.com
> Subject: JetHot coatings on turbo exhausts
> 
> 
> I did all the pipes on mine with the exception of the exhaust 
> logs, and if 
> I had to do it again, I'd do the exhaust logs as well.  (I 
> painted them 
> white with VHT paint.  It seems to be mostly intact after 8k 
> miles.)  The 
> cost was reasonable -- I think they charge about $10 per foot of 
> pipe.  Well worth it in my option for appearance, longevity, and some 
> performance gains.
> 
> So far, the JetHot coatings seem to be living up to their 
> claims.  No rust, 
> some discoloration from paint/grease/road grime, but the 
> coatings are intact.
> 
> I can't really give any "before and after" data because I totally 
> overhauled the engine at the same time.  But I can provide well 
> instrumented data that shows I get ~ 1/2 psi boost at the top 
> of first 
> gear, considerably more in second and peak out at about 10.5 
> psi in both 
> third and fourth.  (This is on a basically stock, '66 180 
> turbo.  It's 
> bored 0.040" over, forged pistons, and total seal rings, but cam, 
> compression, heads, carb and turbo are stock.)
> 
> Jim Simpson, '66 Corsa turbo coupe.