Exhaust Wrap - Insulator or Cooler?

I was quoted £178 + VAT today to ceramic coat just the headers of the Twin, thats $330US in your money! I just cant justify that spend on what im doing, might try the Flameproof paint (700 - 1100 degrees centigrade), its about £10 here, looks like pot luck if it works going by searches but its not a big outlay if it doesn't work.

Yea, heat wrap looks cool, but will likely muck things up.

Many header manufacturers warranties are voided by the use of wrap, as the heat helps deteriorate the metal, stainless or otherwise.

Id stay away.

mark1122 wrote: here is a quote from an exhaust wrap company.

Premium Exhaust Wrap Details


Exhaust wraps help to retain heat in your exhaust system, which increases horsepower while reducing radiant heat damage. By wrapping the exhaust system it maintains hotter exhaust gases, decreases the density, and allows the exhaust gas to exit the system faster! Greater exhaust scavenging is produced and lowers intake temperatures: that equals more horsepower.

Mark, thanks for the post but i think when reading into that statement the mfr is talking about application on a car. It mentions lower intake temperatures which makes more sense in a car than a bike as the air under the bonnet would be cooler with tha headers wrapped.

mark1122 wrote: here is a quote from an exhaust wrap company.

Premium Exhaust Wrap Details


Exhaust wraps help to retain heat in your exhaust system, which increases horsepower while reducing radiant heat damage. By wrapping the exhaust system it maintains hotter exhaust gases, decreases the density, and allows the exhaust gas to exit the system faster! Greater exhaust scavenging is produced and lowers intake temperatures: that equals more horsepower.

I don't really care if anyone wraps their pipes or not, as long as they don't wrap mine, but I do challenge the vendor making that statement to provide an unbiased, third party, credible dyno comparison of a bike's HP rating before and after a pipe wrap with no other mods. I say it just ain't so or every manufacturer in the HP wars (Suzuki, Kaw, etc.) would be wrapping the pipes on their sport bikes and every race bike would have wrapped pipes. Again, not trying to start a war; I like my pipes chrome; others like black; others like wrapped - and that's cool or all bikes would be identical. I'm just saying the vendor's HP statement is meaningless without independent proof. Ed

notaduc wrote: Yea, heat wrap looks cool, but will likely muck things up.

Many header manufacturers warranties are voided by the use of wrap, as the heat helps deteriorate the metal, stainless or otherwise.

Id stay away.

It's because it traps condensation under the wrap which is never good with steel.

mark1122 wrote: here is a quote from an exhaust wrap company.

Premium Exhaust Wrap Details


Exhaust wraps help to retain heat in your exhaust system, which increases horsepower while reducing radiant heat damage. By wrapping the exhaust system it maintains hotter exhaust gases, decreases the density, and allows the exhaust gas to exit the system faster! Greater exhaust scavenging is produced and lowers intake temperatures: that equals more horsepower.

That should be a conditional statement, not an absolute. It MIGHT increase horsepower, assuming the entire system is retuned to the increased exhaust flow rate. It might not. Bike engines are so finely tuned on intake and exhaust that changing one knob without any other change usually causes a LOSS of horsepower.

Comparitively do these Twins run hot anyway Bountyhunter?, I never rode mine, just made sure it was going & then pulled it apart.

i think people just do it for the look
higher temp may create a scavenge effect
I THINK it would be a better scavenge
without wrap though
SOME of these pipes have already been designed to run in a certain temp range
i would also woory about overheating the exhaust valvejust my 8 1/2 cents worth

750steve wrote: Comparitively do these Twins run hot anyway Bountyhunter?.

Not really. In fact, Kawi went to hotter plugs (B6ES) on the twins because they run so much cooler the cold B8ES plugs used in the fours would foul out in the twins.

B8ES is bad? Thats what came in my bike when i bought it! Maybe thats to do with the climate over here?........or should i change em to B6ES?

750steve wrote: B8ES is bad? Thats what came in my bike when i bought it! Maybe thats to do with the climate over here?........or should i change em to B6ES?

Would heed the FSM.

Good Fortune!

Ok, i'll look at that later