wrapped exhaust

[scotty]

I see some fooks using it--Why???? I like the look but what purpose does it serve????????????

[nastyjones]

I believe you're talking about header "heat wrap". This stuff is used by racers mostly. It keeps the heat in the pipes. We all know how hot the air/oil cooled bikes are when we're sitting in traffic. It's also supposed to give racers an extra horsepower on two.

Paul

[lecroy]

I use it for two reasons. It keeps the heat in the pipes. More heat, faster turbo spin up. I am sure it helps some what, but I won't have the whole pipe wrapped.

The main reason I use it is to keep from melting....

[CodyTX]

hot air travels faster. Period.

[mark m]

hot air travels faster. Period.

I just have to...

Why does hot air travel faster?


Mark

[scotty]

hot air travels faster. Period.

I just have to...

Why does hot air travel faster?


Mark

Here is the proof

http://www.thegsresources.com/_forum/viewtopic.php?t=25981

[mark m]

Here is the proof
http://www.thegsresources.com/_forum...ic.php?t=25981

That link doesn't work for me, Scotty.


Mark

[melray]

hot air

dunno what that link was, but the basic concept is that the exhaust gas has a given velocity and temp at the port, where it launches into the pipe. If the temp is kept up the velocity stays up. If the gas cools, it 'shrinks' and thus loses velocity. OK, more precisely it loses volume as it cools, thus the pressure is reduced, so the pressure differential between the port end and pipe end is reduced, so it tends to slow down. Is better if the flow stays up and the gas keeps going out the pipe.

This is the Homer Simpson explanation, if you use search you will find lots of previous serious discussion on this. I would suggest that the concept is the same with a turbo inserted in the flow path, except is even more important to keep flow/pressure up.

[wrench]

hot air travels faster. Period.

I just have to...

Why does hot air travel faster?


Mark

Here is the proof
http://www.thegsresources.com/_forum...ic.php?t=25981

So Dom if we wrap page 46 in heat wrap..it should move along quicker

[scotty]

Here is the proof
http://www.thegsresources.com/_forum...ic.php?t=25981

That link doesn't work for me, Scotty.


Mark

Then apply for the off topic forum by clicking on usergroups at the top right of this page. You are not missing anything. It is a link to a thread that so many of my good friends use every day and i think it total stupidity.((hot air))

Actually it is a great spot where folks say hi every day and it is the closest thing to a chat room that the gs resources needs.

It reminds me of folks yacking on a telephone about nothing. i like to read it from time to time and find out whats cooking around ther globe.

[scotty]

hot air travels faster. Period.

I just have to...

Why does hot air travel faster?


Mark

Here is the proof
http://www.thegsresources.com/_forum...ic.php?t=25981

So Dom if we wrap page 46 in heat wrap..it should move along quicker

wrap the stuff over thier heads in an order that covers and is is paralell to the mouth

[scotty]

Re: hot air

dunno what that link was, but the basic concept is that the exhaust gas has a given velocity and temp at the port, where it launches into the pipe. If the temp is kept up the velocity stays up. If the gas cools, it 'shrinks' and thus loses velocity. OK, more precisely it loses volume as it cools, thus the pressure is reduced, so the pressure differential between the port end and pipe end is reduced, so it tends to slow down. Is better if the flow stays up and the gas keeps going out the pipe.

This is the Homer Simpson explanation, if you use search you will find lots of previous serious discussion on this. I would suggest that the concept is the same with a turbo inserted in the flow path, except is even more important to keep flow/pressure up.

so you are saying as the gas condenses it becomes heavier and moves slower?????

[wrench]

hot air travels faster. Period.

I just have to...

Why does hot air travel faster?


Mark

Here is the proof
http://www.thegsresources.com/_forum...ic.php?t=25981

So Dom if we wrap page 46 in heat wrap..it should move along quicker

wrap the stuff over thier heads in an order that covers and is is paralell to the mouth

[Ions001]

Re: hot air

dunno what that link was, but the basic concept is that the exhaust gas has a given velocity and temp at the port, where it launches into the pipe. If the temp is kept up the velocity stays up. If the gas cools, it 'shrinks' and thus loses velocity. OK, more precisely it loses volume as it cools, thus the pressure is reduced, so the pressure differential between the port end and pipe end is reduced, so it tends to slow down. Is better if the flow stays up and the gas keeps going out the pipe.

This is the Homer Simpson explanation, if you use search you will find lots of previous serious discussion on this. I would suggest that the concept is the same with a turbo inserted in the flow path, except is even more important to keep flow/pressure up.

So, if I wrap my headers will my carbs need to be re-adjusted?

[syafi]

So if I wrap the header, the bike should run better?