I wrapped my entire exhaust system from downpipe to rear mufflers for the increased internal heat and resulting exhaust velocity. I also did it to get slight acoustic benefits by adding total mass to the pipes therefore shifting the resonance point. From what I’ve read the wrap will block high frequencies not low frequencies. ( blocks rasp not bass )
Good job ,,I noticed less heat transfer up through the floor after I wrapped a section of the exhaust , so I agree it does help contain the heat , which has to be a good thing.
I don't think anyone doubts that the wrap makes the exhaust wall temperature cooler on the outside. The real question is whether or not there is a significant difference on the dyno, and whether that's enough of a difference to make up for the downsides of wrap.
I think the answer to that question is highly application and vehicle (motorcycles, cars, etc…) specific and not one that can be answered very easily and was not the intent of this video at all. The dyno isn’t the only measuring stick to the benefits of the wrap. Sure, power gains can be had using the wrap on let’s say, a turbo application when used on the manifold before the turbo. This increases turbo efficiency, similar to how a turbo blanket would by keeping the heat in the exhaust to aid in spooling. But there are other benefits, component life, and catalytic converter efficiency as examples. In my case I’m using an aftermarket high flow catalytic converter, and it’s a little further back in the system than the original because of a flex pipe that was added to prevent manifold stress. This can sometimes present problems with heating the cat quickly enough which can result in catalyst efficiency faults. Keeping the heat in the exhaust helps remedy this by helping heat up the cat faster.
i put a wrap on my up-pipe and a turbo blanket ! = OMG - NO LIES BUT 200 degreese cooler ! - the stock exhaust has shielding and insulation but uncatted up-pipe gett1s very hot and a blanket - mine is called a LAVA COAT - i wired it on well - cost was under $100 - turbo blanklet .)
It's definitely interesting stuff. If you've used it before, how does it hold up? It doesn't appear to be as durable as the fiberglass and titanium wraps, but I have no experience with it myself.
@@stuffyoucando2 well I used it on my latest Turbo build on my channel you have to clad it and that's what you see on my video. I use titanium sheet to wrap it up in. it's certainly holding heat a lot better my EGT's on average are 200°F higher and when the bare pipe surface temperature is 600°, the external cladding is only around 150 to 200. VERY good stuff. I used 1/4 thick material.
This is used all the time and doesn't crack the pipes...do you know from experience? If the pipe cracks it's likely due to poor welding or other stresses.
@@stuffyoucando2over time the metal characteristics will be altered if operating beyond temp it can withstand. If I’m not mistaken the amount of carbon content in the steel will determine how long it’ll take to fail. Apparently it’s a chemical process that cannot be reversed
I wrapped my entire exhaust system from downpipe to rear mufflers for the increased internal heat and resulting exhaust velocity. I also did it to get slight acoustic benefits by adding total mass to the pipes therefore shifting the resonance point. From what I’ve read the wrap will block high frequencies not low frequencies. ( blocks rasp not bass )
Good job ,,I noticed less heat transfer up through the floor after I wrapped a section of the exhaust , so I agree it does help contain the heat , which has to be a good thing.
I don't think anyone doubts that the wrap makes the exhaust wall temperature cooler on the outside.
The real question is whether or not there is a significant difference on the dyno, and whether that's enough of a difference to make up for the downsides of wrap.
I think the answer to that question is highly application and vehicle (motorcycles, cars, etc…) specific and not one that can be answered very easily and was not the intent of this video at all. The dyno isn’t the only measuring stick to the benefits of the wrap. Sure, power gains can be had using the wrap on let’s say, a turbo application when used on the manifold before the turbo. This increases turbo efficiency, similar to how a turbo blanket would by keeping the heat in the exhaust to aid in spooling. But there are other benefits, component life, and catalytic converter efficiency as examples. In my case I’m using an aftermarket high flow catalytic converter, and it’s a little further back in the system than the original because of a flex pipe that was added to prevent manifold stress. This can sometimes present problems with heating the cat quickly enough which can result in catalyst efficiency faults. Keeping the heat in the exhaust helps remedy this by helping heat up the cat faster.
i put a wrap on my up-pipe and a turbo blanket ! = OMG - NO LIES BUT 200 degreese cooler ! - the stock exhaust has shielding and insulation but uncatted up-pipe gett1s very hot and a blanket - mine is called a LAVA COAT - i wired it on well - cost was under $100 - turbo blanklet .)
The truck this pipe is going on is getting a blanket on the turbo as well, I think combined they should help quite a bit. 👍
get ceramic wool. it's glorious!
It's definitely interesting stuff. If you've used it before, how does it hold up? It doesn't appear to be as durable as the fiberglass and titanium wraps, but I have no experience with it myself.
@@stuffyoucando2 well I used it on my latest Turbo build on my channel you have to clad it and that's what you see on my video. I use titanium sheet to wrap it up in. it's certainly holding heat a lot better
my EGT's on average are 200°F higher and when the bare pipe surface temperature is 600°, the external cladding is only around 150 to 200. VERY good stuff. I used 1/4 thick material.
Yeah I'm sure the cladding helps out then. I'll be sure to check out your channel to have a look. Thanks!
Cracks the pipes sucks happens metal cant all handle it makes em brittle and crack
This is used all the time and doesn't crack the pipes...do you know from experience? If the pipe cracks it's likely due to poor welding or other stresses.
@@stuffyoucando2over time the metal characteristics will be altered if operating beyond temp it can withstand. If I’m not mistaken the amount of carbon content in the steel will determine how long it’ll take to fail. Apparently it’s a chemical process that cannot be reversed