Exhaust insulating wraps

Post by **fatassgq** » Tue Oct 07, 2003 7:11 pm

Anyone had any experience with this stuff? Specifically 'thermo tec'
Was wanting to wrap up the extractors on my diesel to get some heat out of engine bay and protect airlines etc. Plus maybe pick up a pony or two?
www.thermotec.com
Cheers
Brian[url][/url]

Website · Post by **murcod** » Tue Oct 07, 2003 7:26 pm

I've heard a lot of header manufacturers won't warrant their products if it's used. Apparently the extra heat can cause failures that otherwise would not have occurred (?)

Post by **Liam** » Tue Oct 07, 2003 7:43 pm

I've used it for years, its great.

Post by **bogged** » Tue Oct 07, 2003 7:43 pm

Used to use it on the race bikes, some say it works, others... Personally it did nothing to my ZXR...

Options are lift the rear of the bonnet on the hinges a little, and a couple of GT Style bonnet scoops work too..

Post by **fatassgq** » Tue Oct 07, 2003 7:53 pm

The problems I have been told are that when the exhaust expands the wrap prohibits it and can cause cracks.
I think even the thermo tec site says that on tow vehicles it is better to use it only to the collector.
I cant imagine the stuff being so tight as to cause cracking??
And if you wrap each primary seperately instead of altogether it should be alright!?

Post by **bundytunna** » Tue Oct 07, 2003 9:02 pm

the shit must be preety good as all ythe horsepower heroes at summernats use it
they use shitloads of it on the turbo zorst and extractors all that shit
try jet hot extractors in castlemaine
im preety sure they stock the stuff cheap

Post by **hazard** » Wed Oct 08, 2003 5:54 pm

Use a ceramic coating if you can. The Thermotec is good if you have under bonnet temp problems or a racecar and no other options... The wrapping causes accelerated rusting and makes the pipes more prone to cracking. I still use it - but more selectively. I think it would be a waste of money on a 4x4 if you were using it for a perfomance gain...

If you have a turbo and are running it hard enough to get it really glowing - don't use the wrap. I built a Brumby for a customer with WRX running gear in it and used the wrap - it was great and protected other components but it didn't last long - kept catching fire when you were really up it ,you would slow down, fire would go out....

The Thermotec blankets and tape etc are great for protecting other stuff in the engine bay!

Post by **johnboy** » Wed Oct 08, 2003 10:28 pm

i had it on the exhaust of my 4x4 kombi with a wrx motor in it. it rusted out the custom pipe work in no time flat. its always getting wet then catching mud and shit in it. when you hit it with the gerni it vanishes and overall it realy isn't suited to offroad applications.

just my 2c worth.

Johnboy

Post by **ausyota** » Wed Oct 08, 2003 10:37 pm

From what Ive heard ceramic is the way to go.
http://www.hpcoatings.com.au/
bit pricey though.
Paul.

Post by **Wendle** » Thu Oct 09, 2003 8:19 am

someone needs to start a thread with pictures of all the vehicles described above, and their willy-nilly use of WRX motors!

Post by **Gordo** » Thu Oct 09, 2003 11:26 am

I got my Jeep's extractors' coated with Jet-Hot hi lustre (aka Sterling) hi-temp coating when new good to 1300 deg F. This warrants them against rusting FOR LIFE. Only about $250 on top of the original extractor price.

Used on fighter plane's exhausts (original application). Hi Lustre was a waste of time - first mud bath - nice brown colouring. would have gone the black coating (aka JetHot 2000) which is good to 2450 deg F

Reduces engine underbonnet temps well. The manfacturers make performance claims too but I reckon it's minimal in offroading.

Another downside to thermowrap. Ever seen a busted oil line spray it with oil and go up ?

Burns much nicer than steel

Had excellent turnaround time from JetHot in Vic too.

more info : www.jet-hot.com
ADDRESS
26 Elizabeth St
Castlemaine
VIC, 3450
Australia

Ph: 1800 700 468
Other: (03) 5470 6416

Post by **AVGAS_502** » Thu Oct 09, 2003 1:48 pm

Jet hot is the way to go... cool down time is incredible... and it looks so BLING BLING :lol:

Post by **bundytunna** » Thu Oct 09, 2003 5:00 pm

Options are lift the rear of the bonnet on the hinges a little, and a couple of GT Style bonnet scoops work too..

im getting a bit of heat under my bay so im gonna lift the bonnet a bit and wanna fit a scoop
what do the GT scoops look like
the ones off the EL GT or EB GT or what?
dont have a pic do ya?
thanks

Post by **fatassgq** » Thu Oct 09, 2003 6:43 pm

A mate of mine has got a 2.8 hilux with an aftermarket turbo and he has only got thermos on it and I think he was having temp problems.
He put some vents in the bonnet towards the front but behind the rad and fan(I am not sure what the vents were off but I will check) but the heat that comes out of them when the fan is on and the engine idling is fucken amazing.
I think they alone solved his problems and they look pretty funky too

Post by **bundytunna** » Thu Oct 09, 2003 9:08 pm

with a scoop /vents what do u do when u come to water
wont the water come in thru the vents and flood the engine and all elecs?
is there some quik fix solution u do b4 u come to a crossing?
thats my only con about gettin one
i run a 2f in a 60 and it gets bloody hot underneath just afta a trip to the shops
i wanna put the scoop on to cool underneath but im worried bout the water

Post by **ToNkA** » Thu Oct 09, 2003 9:38 pm

Wont water just enter the engine bay anyway? They are not airtight..........

Scoop or no Scoop.

Post by **bundytunna** » Thu Oct 09, 2003 9:42 pm

nah coz the engine bay is sorta air tight
water wont flow thru it readily coz of the surrounding air pressure in the bay
i spose i could just cover the scoop couldnt i
hmmmmmmmm

Post by **bazzle** » Fri Oct 10, 2003 10:33 am

Thermal wrap concensus seems to be not making efficiency gains.
reason:1. heat held in primary pipes createtes more reflected heat into exh ports 2. exh gas stay expanded req more pressure to move.

bazzle

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