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Author Manifold heat wrap
drunkenfool
Member

Registered: 7th Feb 03
Location: Hereford Drives: Audi R8 V8
User status: Offline
31st Jan 07 at 14:54   View User's Profile U2U Member Reply With Quote

I've heard pro's and con's of doing this, but I'm thinking in a bay as smal as a corsas it may be an advantage to reduce as much heat as possible getting sucked into the throttle bodies? Any suggestions? Im thinking it would also save me getting the manifold shot blasted, I'll just wrap it and it will look better than it does now
Cupra Steve
Banned

Registered: 7th Nov 06
User status: Offline
31st Jan 07 at 14:56   View User's Profile U2U Member Reply With Quote

i've been told to do this, bit easier when the engine aint in the car though!!!!
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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31st Jan 07 at 14:57   View User's Profile U2U Member Reply With Quote

could crack the manifold tho! the heat needs to escape from the manifold!
get a cold air feed to the tb's
Cupra Steve
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Registered: 7th Nov 06
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31st Jan 07 at 14:58   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by mikegsic16xe
could crack the manifold tho! the heat needs to escape from the manifold!



my mate never told me this!!!
Stu
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Registered: 3rd May 00
Location: Madchester UK Drives: 2014 BMW M135i
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31st Jan 07 at 14:59   View User's Profile U2U Member Reply With Quote

The main reason you heat wrap is to keep the exhaust gases hot. The hotter the exhaust gas is the faster the molecules are moving and therefore the quicker it moves out of the exhaust!

But it will also have the effect of keeping the heat out of the engine bay as you said and I also think it looks cool!!!

Do it!!!
Mike GSi
Member

Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
User status: Offline
31st Jan 07 at 15:00   View User's Profile U2U Member Reply With Quote

my mate wrapped his 205 gti manifold and it cracked after 10 mins of hard driving!
Stu
Member

Registered: 3rd May 00
Location: Madchester UK Drives: 2014 BMW M135i
User status: Offline
31st Jan 07 at 15:02   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by mikegsic16xe
my mate wrapped his 205 gti manifold and it cracked after 10 mins of hard driving!


Good excuse to buy a nice new one then!!!
Mike GSi
Member

Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
User status: Offline
31st Jan 07 at 15:03   View User's Profile U2U Member Reply With Quote

also he opened the bonnet and it was glowing!
Butler
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Registered: 2nd Jun 05
Location: London
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31st Jan 07 at 15:04   View User's Profile U2U Member Reply With Quote

A manifold of high quality shouldnt crack if heatwrapped. Its definately a good idea in my opinion, I dont know why more people dont do it. Thermotec stuff from demon tweeks is top quality.
Stu
Member

Registered: 3rd May 00
Location: Madchester UK Drives: 2014 BMW M135i
User status: Offline
31st Jan 07 at 15:05   View User's Profile U2U Member Reply With Quote

I used it on my Corsa for a while - Similar spec to yours (2.1, TB'd) and never had an issue. I changed the manifold for a better design to compliment the throttle bodies and never got round to putting it back on.
Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
User status: Offline
31st Jan 07 at 15:06   View User's Profile U2U Member Reply With Quote

try and get another manifold, wrap it while off the engine then try it! if it cracks put ur old one back on..... happy days
TomSBD
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Registered: 22nd Jun 06
Location: Spalding, Lincs
User status: Offline
31st Jan 07 at 15:12   View User's Profile U2U Member Reply With Quote

mine was and still is fine
wrapped my type c from the day i got it and never had any problems
jr
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Registered: 20th May 02
Location: Kent
User status: Offline
31st Jan 07 at 15:21   View User's Profile U2U Member Reply With Quote

mild steel manifolds are know to crack through heatwrap, stainless ones shouldnt

BTB however dont seem to have these issues
drunkenfool
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Registered: 7th Feb 03
Location: Hereford Drives: Audi R8 V8
User status: Offline
31st Jan 07 at 15:44   View User's Profile U2U Member Reply With Quote

I'm not 100% sure what my manifold is, I bought it off ebay for £37 just advertised as a 4-1 manifold, i needed a replacement for my old one. I'll give it a go and if it cracks then I'll have to get a better fannymould

 
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