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[Revband]

I like the use of the word "Potential". Did you go on to read this?.

[Revband]

I like the use of the word "Potential". Did you go on to read this?.

[Revband]

Well that didn't work. It goes on to warn of the engine and exhaust damage it can cause.

[Presto]

Come on guys Has April come early? What ultra-sensitive meter is needed to detect the performance increase from the extra scavenging an engine benefits from by fitting exhaust wrap??!! Fitting accessories and adding personalised parts was never only about ‘going faster’ – certainly not when the bike in question is a Bullet – or any other Royal Enfield. If it was all about going faster, then you’d buy something else to begin with. NO ONE who adorned their bike with chequered tape ever thought it would help it ‘go faster’! But, hey, we’ve cracked that ‘joke’ for 50 odd years, so why not keep it going! ‘Customising’ – whether fitting new seats, exhausts, mudguards, lights, handlebars, or what-have-you is more about doing to your bike what you want to do to it. ‘One’s man’s meat…’. Exhaust wrap isn’t my cup of tea but it’s not my bike it’s being fitted to.

[Bullet Whisperer]

Exhaust wrap improves performance? Yeah, right - that'll be why the majority of race bikes exhausts [at any level, vintage or modern] aren't plastered in the stuff then !! Get the heat out and away as quick as you can, I say. Regards, Paul.

[Scalyback]

So re my earlier post, If you feel the need to bandage your bike, then maybe you should check if it is ill first.



Super insulated and over heated outlet ports can become damaged. That's what all those sticky out bits all over the engine are for, to help air cooling. You want to wrap it up in a coat, then don't be surprised if the exhaust port or valve seat get upset.

[jefrs]

I've been burnt by trial bikes and that was as a marshal, half the time we were picking them up. The wrap gets hot to thermal equilibrium with the pipe, hot enough to burn, so it's not that. The pipes got bashed regularly so some wrapped them to lessen damage, or hide it from scrutineers. Scrutineering was rudimentary then, some bits would be held on with hairy string. Where the wrap got scraped off the pipes were rusty.

I'm also a physicist. I'm not going to get into gas laws and PVT correction other than to say the thing ejecting the exhaust gas is the piston coming up the barrel at 3 metres per second.

[Presto]

My thought too BW – but was reluctant to mention it in case someone came back with proof that so-and-so competed somewhere on a race bike WITH exhaust wrap. As for me I can’t recall any first-class race bike with the exhaust pipe wrapped. But have seen plenty with cut outs and devises to make sure the exhaust pipe got a good draft of cooling air directed to it.

[papasmurf]

Presto you would not see it because of the fairing.

[Presto]

I would if I looked at the pipes through the front vent in the fairing - that is there to allow cooling air to reach the exhaust pipe!