Wrap or Shield

Vlade · Post by **Vlade** » Wed Aug 29, 2007 8:46 am

Got a bit of a heat problem with the tubular manifold...

Got two options shield the heat, or exhaust wrap?

I've noticed Phinx and Johan has done the exhaust wrap any problems with it guys? it wont melt the manifold hey, cause it get too hot?

Phinx · Post by **Phinx** » Wed Aug 29, 2007 8:59 am

Great Stuff in my Eyes..

I'm in the process of getting more to wrap the whole manifold

Doctor G · Post by **Doctor G** » Wed Aug 29, 2007 9:41 am

Wrap keeps moisture in and your manifold will rust within about a year.

Ceramic coating is the way to go. Maybe disassemble the turbo and do the exhaust side housing as well. Looks much better, retains the heat which is good for your engine bay and good for performance too.

Vlade · Post by **Vlade** » Wed Aug 29, 2007 10:05 am

Doctor G wrote:Wrap keeps moisture in and your manifold will rust within about a year.

Ceramic coating is the way to go. Maybe disassemble the turbo and do the exhaust side housing as well. Looks much better, retains the heat which is good for your engine bay and good for performance too.

The manifold is stainless so it can't really rust

Phinx · Post by **Phinx** » Wed Aug 29, 2007 10:55 am

Wrap keeps moisture in and your manifold will rust within about a year.

Ceramic coating is the way to go. Maybe disassemble the turbo and do the exhaust side housing as well. Looks much better, retains the heat which is good for your engine bay and good for performance too.

Sorry I also beg to differ, I have had exhaust wrap on my Tazz with a mild steel branch for about 4 Years , And there is no hint of rust I removed the wrap about 9 months ago to replace it and the branch looks better then the rest the exhaust.

Ceramic coating is very nice but also very expensive but to each his own

Doctor G · Post by **Doctor G** » Wed Aug 29, 2007 11:42 am

It depends on the type of steel. Some of the socalled stainless steel exhausts supplied by places like Viper is a grade of steel which technically qualifies to be called stainless but it's not the real thing. I've seen it rust before.

Another factor is obviously how much humidity and moisture the branch is subjected to. Does it park outside or under a carport vs a full garage overnight etc. If you ever wash the engine it would get wet.

Ceramic may be expensive but it's well worth it. Personally, in addition to the above I just don't like the look of the wrap. Looks a bit ghetto.

veecee · Post by **veecee** » Wed Aug 29, 2007 12:41 pm

ceramics are the way to go, but quite expensive! i looked into it recently for my brake calipers, but they want about 500 per caliper. thats 2 grand just for the calipers - *cough cough*

wouldnt the heat from the exhuast manifold rid the wrap of moisture??? that way it would be more dry than most things in there???

The Calibrator · Post by **The Calibrator** » Wed Aug 29, 2007 1:05 pm

Ceramic and wrap keep the heat in the manifold I am dubious about the ability of that manifold style to withstand repeated hot/cold cycles without cracking after hearing the cracking noise it makes on cool down.
Build a radiation shield like the OEM stuff.

Gary57 · Post by **Gary57** » Wed Aug 29, 2007 1:08 pm

I dont have any heat problems with my manifold, what problem you have??

Every book I have read say stay away from wapping the manifold on a turbo car because of the heat. My EGT go up to about 860degrees when I am footing it in about 7seconds, that is with out wrap, I personally wouldnt wrap my manifold.

Vlade · Post by **Vlade** » Wed Aug 29, 2007 1:08 pm

Spoke to pro's now, they said wrap and so I did... Every one I spoke to recommended Thermo-Tec

http://www.thermotec.com/product_detail.php?prd_id=27

The thermo tec stuff acts as an heat exchanger (Like a heat sink in a computer) adsorbs and dissipates heat across the surface.

Some of the other wraps only contain it, thus you start melting stuff...

More info here

http://www.thermotec.com/page.php?page_id=35

Phinx · Post by **Phinx** » Wed Aug 29, 2007 1:16 pm

I have had no Issue what so ever with wrap ...

On both my cars and others, But hay I have made up my mind ceramic is to expensive in my eyes and the gains to little with regards to headers.

A Heat wrap does the same thing at 1/8 th the price and if the fueling system and exhaust system sizing is correct the exhaust temperatures should not get anywhere close to dangerous.

But now its up to Vl@de to make up his mind in where he wants to go .
Maybe refit the stock turbo shielding?

Vlade · Post by **Vlade** » Wed Aug 29, 2007 1:33 pm

Phinx wrote:I have had no Issue what so ever with wrap ...

On both my cars and others, But hay I have made up my mind ceramic is to expensive in my eyes and the gains to little with regards to headers.

A Heat wrap does the same thing at 1/8 th the price and if the fueling system and exhaust system sizing is correct the exhaust temperatures should not get anywhere close to dangerous.

But now its up to Vl@de to make up his mind in where he wants to go .
Maybe refit the stock turbo shielding?

Can't refit the stock shielding got a branch like you bru...

Got wrap already... from ATS quickly went during lunch time...

Gary57 · Post by **Gary57** » Wed Aug 29, 2007 1:35 pm

What problems where you having with the heat?? How much it cost you?? hope you going to take lots of pics and make an article.

Vlade · Post by **Vlade** » Wed Aug 29, 2007 1:39 pm

Problems... keep forgetting... My ABS gets really hot not that its a problem, it can just be, other thing is my breather pipes keep on melting... but I don't have the stock ones got some Flexible PVC hose in there.

Cost: R450, gen II copper wrap.

Gary57 · Post by **Gary57** » Wed Aug 29, 2007 1:41 pm

So not really any problems you just wanted something new to do

. How much wrap did they give you for R450??