For those of you interested. I received some information from Jet-Hot that you might find helpfull...
They'd charge $170.00 to strip a pipe of the factory plating and apply two coats inside and out with the 1300 Sterling finish. Pice includes return shipping. They'll need the parts for about 7-9 business days plus shipping time back. The Sterling finish is a brilliant chrome looking finish. Reduces surface temps up to 300F. By keeping the heat inside the expansion chamber it generates a much denser charge. Helps the cylinder both scavenge spent exhuast gases and reduce short circuiting. Will withstand tempuratures up to 1300F without peeling, discoloring or cracking. Will reduce the possibility of component failure or cracking by atleast ten times...and that's a quote straight from them.
If your pipe wasn't plated it would save you $50 and 2 days down time. Mind you they offer a Stealth coat as well that would retain a "works" pipe non plated look.
Header wrap
I stopped by the Jet-Hot booth at PRI in Orlando a couple weeks ago and talked to the guy in the booth, and specifically asked if they coat inside and out... He stated they only coated outside, because the goal was to get the heat out.MICK wrote:apply two coats inside and out
Just seems strange to me after reading here that they coat inside and out.
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dannygraves
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Um...I think there might have been some miscommunication between the two of you?? Worsened by the fact the guy was probably hired help for the event.fastkart wrote:I stopped by the Jet-Hot booth at PRI in Orlando a couple weeks ago and talked to the guy in the booth, and specifically asked if they coat inside and out... He stated they only coated outside, because the goal was to get the heat out.
Just seems strange to me after reading here that they coat inside and out.
1. The information above is quoted straight from an email Dave Gibbons of Jet-Hot sent me. Matter of fact Dave mentioned it twice: "JET-HOT applies two exterior coatings and two interior coatings and not just one layer." And again, "We'd charge $85.00 to coat your parts inside and outside in the 1300 Sterling finish." The $170 price I mentioned above included stripping of factory plating and shipping.
2. I have Jet-Hot coated headers on my RC51. They're coated inside and out.
3. They don't want the heat to escape the exhaust AT ALL!! That's where the power is made. The idea is to isolate it inside the expansion chamber. that's why the surface temperature of the pipe is reduced, all that heat is trapped inside the exhuast. As exhaust gases cool they become slow and erratic. This exacerbates short circuiting. Coating the inside of the pipe is where the money is made, coating the exterior does help some but is primarily for looks...
'03 CR500 powered by...umm...a new motor?
In my travels working with sleds, the coating changed the dynamics of the pipe so much, we went backwards in some cases.
It seemed to make the pipe tighter in most cases. By putting a larger stinger on we were able to keep from sending too much heat back in the chamber.
Example, Arctic Cat (Suzuki) 1000cc overbore twin with Jaws twin pipes we lost torque with coating and couldn't bring it back until we swapped back out to painted pipes. But, with a stock Polaris 700 cc twin it loved it.
All and all it came down to what mods were done to the motor and the brand (type of pipe).
But don't forget, sled motors work in a different world than our bikes. The clutching brings the motor to peak and keeps it there. Full throttle, at peak output. Max load = max heat.
Curious to see who is going to be the first. Coated pipes look cool and can be done in many colors.
It seemed to make the pipe tighter in most cases. By putting a larger stinger on we were able to keep from sending too much heat back in the chamber.
Example, Arctic Cat (Suzuki) 1000cc overbore twin with Jaws twin pipes we lost torque with coating and couldn't bring it back until we swapped back out to painted pipes. But, with a stock Polaris 700 cc twin it loved it.
All and all it came down to what mods were done to the motor and the brand (type of pipe).
But don't forget, sled motors work in a different world than our bikes. The clutching brings the motor to peak and keeps it there. Full throttle, at peak output. Max load = max heat.
Curious to see who is going to be the first. Coated pipes look cool and can be done in many colors.
That's what the articles I've read concluded. Aftermarket pipes didn't perform as well once coated. But the stock pipes would outperform the aftermarket units once they had been. I have no clue what this might do for a single cylinder two stroke? I'll probably give it a shot in the next year or two.
'03 CR500 powered by...umm...a new motor?