exhaust wrap

[screamingreen97]

so i wrapped my downpipe with the exhaust wrap....WOW...what a difference...i found my lost boost with it too...my intake temps were at a max of 180 degrees F the other day at idle on the roads...today, i let it idle in the driveway for 10 min....the temp was at 89...then driving, the max was i think 125...and cruising between 108-118....i knew the loss of boost was prob from the heat....im going to further wrap the intake pipe with the reflective stuff from home depot prob later on....but wow...big difference

[Warumono]

what did you use? do you have any pics?

[screamingreen97]

ummm...i forgot what brand i used, but it was like 35 bux for a 1" by 50' roll....and i still have some left over... ill take pix once i have all the wrapping done with the intake

[redrum]

Just a note for anyone considering this- exhaust wrap will hold moisture, so it should only be used on stainless if the car is daily driven.

Jet-Hot or similar coatings are another, more expensive alternative.

[screamingreen97]

Originally Posted by redrum

Just a note for anyone considering this- exhaust wrap will hold moisture, so it should only be used on stainless if the car is daily driven.

Jet-Hot or similar coatings are another, more expensive alternative.

the packaging said it lets the moisture out...so i think i got a pretty expensive one lol...name brand...i saw others for like 10 bux, and i was like, nah, ill spend the xtra for the name brand



brand is called: Thermo-tec

[Saaboheme]

Originally Posted by screamingreen97

brand is called: Thermo-tec

Yep - that's a good one - right here in Ohio. You can get it at Jeg's (another Ohio company), or Summit Racing (another Ohio company), etc.

[screamingreen97]

Originally Posted by Saaboheme

Yep - that's a good one - right here in Ohio. You can get it at Jeg's (another Ohio company), or Summit Racing (another Ohio company), etc.

ya it would have been cheaper through my sponsorship, 15 bux for a 50 foot roll...and its DEI...i just didnt wanna wait like 3 weeks for it to arrive here

[fromero]

I wonder...

Being one of the factors of oil sludge the fact that the exaust and catalyst are under the oil pan, wouldn't it be great to wrap that area and insulate as much as possible the catalyst?
Anybody knows if this would affect the catalyst?
I imagine not, as I see turbos and downpipes fully insulated....

[Saaboheme]

Originally Posted by fromero

I wonder...

Being one of the factors of oil sludge the fact that the exaust and catalyst are under the oil pan, wouldn't it be great to wrap that area and insulate as much as possible the catalyst?
Anybody knows if this would affect the catalyst?
I imagine not, as I see turbos and downpipes fully insulated....

One other positive thing it would do would be to help speed up the heating of the cat. They only do their jobs when they reach a certain temperature. So, there would be a positive environmental impact. Not sure if this would negatively impact longevity of the cat though. Anyone? Bueller?

[PETER SAABER]

did the exhaust wrap smoke? I've had it smoke and smell bad for about a day, and have heard that too from others.

The reflective stuff, I have some, and have been playing with it. Will it really work? My tests have shown that it doeas keep the intake pipe colder, and it doesnt melt. I called and they said it melts at high temp on contact, but an inch away it will be fine, after a week my test strip hasnt melted, scorched, caught fire or slid (contract?, shrink?) So I figure it'll be ok. Now how would I wrap the intake? airbox?

[screamingreen97]

Originally Posted by PETER SAABER

did the exhaust wrap smoke? I've had it smoke and smell bad for about a day, and have heard that too from others.

The reflective stuff, I have some, and have been playing with it. Will it really work? My tests have shown that it doeas keep the intake pipe colder, and it doesnt melt. I called and they said it melts at high temp on contact, but an inch away it will be fine, after a week my test strip hasnt melted, scorched, caught fire or slid (contract?, shrink?) So I figure it'll be ok. Now how would I wrap the intake? airbox?

mine has barely smoked...and i wound up with like 20 feet of wrap left over, so i just wrapped the intake delivery pipe with that too...i guess it helps?

im about to go outside and take a couple pix...ill have them up in a few

[screamingreen97]

here they are

[John Z Williams]

Looks good there, I am a big fan of wrap and ic piping wrap. I removed my insulation under the hood too, it all helps to keep under hood temps down. I actually added back the stock 9-3 heat shield over my large turbo and that helps too... It all adds up...

John

[Corn Cob]

I have read in the past(I believe in the C900 forum, maybe somewhere else) that doing this was a big no-no! The reason being that the extra heat causes the metal to oxidize prematurly, and your expensive exhaust bits rot from the inside out. Is this false? I would love to do this but if my sweet downpipe is going to disentagrate I'm out man.

[fromero]

Soooo,

is it possible to wrap the catalyser??

[John Z Williams]

Originally Posted by Corn Cob

I have read in the past(I believe in the C900 forum, maybe somewhere else) that doing this was a big no-no! The reason being that the extra heat causes the metal to oxidize prematurly, and your expensive exhaust bits rot from the inside out. Is this false? I would love to do this but if my sweet downpipe is going to disentagrate I'm out man.

Maybe if you had a mild steel header or something, but the strong cast iron ones we have are very strong! I have been running header wrap for almost 3 years now and its still going strong!

John

[Saaboheme]

Originally Posted by John Z Williams

Maybe if you had a mild steel header or something, but the strong cast iron ones we have are very strong! I have been running header wrap for almost 3 years now and its still going strong!

John

Concur. The cast iron manifold is a beast. It will take more time than you have on earth for it to oxidize into elemental form. If your DP is SS, then it will not corrode away - the only possible drawback is if the welds are substandard, the additional heat from the wrap could overstress them.

[Corn Cob]

Ok I will give it a go. The exhaust manafold I wasn't worried about, like you guys said it is super heavy duty thick metal. I was just worried about the downpipe, but I guess it would be ok since I have the GSv2.

[Saaboheme]

Originally Posted by Corn Cob

Ok I will give it a go. The exhaust manafold I wasn't worried about, like you guys said it is super heavy duty thick metal. I was just worried about the downpipe, but I guess it would be ok since I have the GSv2.

I would bet on the GS also - maybe Nick will weigh in here and put all doubt to rest. Corn Cob, how's come you have not responded to our Events post for this weekend in Findley SP?

[hunt.dogshome]

I did my 3" D.P. about 2 months ago. I didn't notice any difference in performance? You can put your finger on the outside of the wrap after a run fairly safely- so it's definitely working.

I went from the 3-bolt turbo connection down to the flex pipe just in front of the cat.

Must do my intake line and try that.