So why do high powered cars coat both inside and outside of the manifold/exhaust system??
Do they? Are we talking about special requirements of race cars? No Porsche and no
Ferrari sportscar needs gmiimicks like this. Are these slow?
The Ex F1 technician and engine builder that I speak to 3-4 times a week must be wrong then. So must the guys at Zircotec and The authors of numerous books that cover the subject I.e 4 stroke tuning by A.G Bell.
Also the EFI university must be using incorrect information during their training seminars.
That's why I asked for information and I still miss it.
But of course ''hoter gasses flow better'' still remains nonsense in case of an exhaust system.
Google Boyles Law and Daniel Bernoulli
Same principal for dynamic passage of air over a wing creating lift CL=1/2 Rho V Squared, a smoother surface also creates a better boundary layer against the surface over which it passes = less drag = better breathing
Dave, if you had read what I've written in other topics about aerodynamics you'd know
that I have read enough about Bernoulli, Hucho and others.
I did not negate in any way smoothing the surface will improve flow.
Until now some guys told about isolation and better flow of hotter gases which is crap.
Also smoothing the inner surface doesn't need any coating at all.
At least on a cheapo DP.
This seems like putting a F1 tyre on a Tin Lizzy.
