| Header Wrap [message #347957] |
Mon, 16 September 2019 18:50  |
MikeB
Messages: 133
Registered: December 2018
Location: South Bama
Karma: 1
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Senior Member |
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I was wondering why Header Wrap was not used or talked about more often with these motors. I know by using the wrap it increases out going exhaust temps within the exhaust pipes. Is there some adverse effect it has on the system?
I had it on my headers in my 240z to reduce the radiated under hood heat that would impact my side draft carbs.
M Beam
75’ Avion
TBI EBL , 3.70 LSD and other stuff
Zuki Sidekick,
Dozier Al
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| Re: [GMCnet] Header Wrap [message #347963 is a reply to message #347962] |
Mon, 16 September 2019 19:09  |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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For some reason lot of headers rust out quickly when wrapped so they All
refuse to warranty them.
These Ceramic coated units do a good job of cutting down on heat.
My twin turbo coach does well with that coating
On Mon, Sep 16, 2019 at 5:04 PM James Hupy via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Yes, it lowers the under hood temps, but, if your headers are not Ceramic
> coated inside and out, their life will be shortened.
> Jim Hupy
> Salem, Oregon
>
> On Mon, Sep 16, 2019, 4:50 PM mtb8114--- via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> I was wondering why Header Wrap was not used or talked about more often
>> with these motors. I know by using the wrap it increases out going
>> exhaust
>> temps within the exhaust pipes. Is there some adverse effect it has on
>> the system?
>>
>> I had it on my headers in my 240z to reduce the radiated under hood heat
>> that would impact my side draft carbs.
>> --
>> M Beam
>> 75’ Avion Lots of Mods
>> Zuki Sidekick
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
> _______________________________________________
> GMCnet mailing list
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--
Jim Kanomata
Applied/GMC, Newark,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Header Wrap [message #347975 is a reply to message #347969] |
Mon, 16 September 2019 20:42 |
Richard Denney
Messages: 920
Registered: April 2010
Karma: 9
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Senior Member |
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At the time, it was a choice, and the ceramic coatings were white. This
looks like chrome, and the price was significantly less than the ones call
“ceramic coated”. We’re talking 15 years ago, when we bought them directly
from Thorley.
Rick “ecstatic at the thought that it is ceramic coating” Denney
On Mon, Sep 16, 2019 at 9:12 PM Emery Stora via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Rick
> Thorley did not nickel plate them. That actually is a thin ceramic
> coating. I know this because I once spoke to the Thorley factory about it.
>
> Emery Stora
>
>> On Sep 16, 2019, at 6:10 PM, Richard Denney via Gmclist gmclist@list.gmcnet.org> wrote:
>>
>> The problem is holding moisture against the header tubes during long
>> periods of non-use fosters corrosion.
>>
>> Rick “whose 15-year-old nickel-plated Thorleys are still remarkably
>> rust-free” Denney
>>
>> On Mon, Sep 16, 2019 at 7:50 PM mtb8114--- via Gmclist > gmclist@list.gmcnet.org> wrote:
>>
>>> I was wondering why Header Wrap was not used or talked about more often
>>> with these motors. I know by using the wrap it increases out going
>>> exhaust
>>> temps within the exhaust pipes. Is there some adverse effect it has on
>>> the system?
>>>
>>> I had it on my headers in my 240z to reduce the radiated under hood heat
>>> that would impact my side draft carbs.
>>> --
>>> M Beam
>>> 75’ Avion Lots of Mods
>>> Zuki Sidekick
>>>
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>>
>> --
>> '73 X-Glacier 230 "Jaws"
>> Northern Virginia
>> Offlist email: rick at rickdenney dot com
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
> _______________________________________________
> GMCnet mailing list
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> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
'73 X-Glacier 230 "Jaws"
Northern Virginia
Offlist email: rick at rickdenney dot com
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| Re: Header Wrap [message #347984 is a reply to message #347957] |
Mon, 16 September 2019 21:40 |
MikeB
Messages: 133
Registered: December 2018
Location: South Bama
Karma: 1
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Senior Member |
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Well ok. My awesome PO installed Ceramic Thorley headers so I guess I'm set. One thing he did say is that occasionally the exhaust gasket blows in the middle and he left me a few extra gaskets. What's that all about?
M Beam
75’ Avion
TBI EBL , 3.70 LSD and other stuff
Zuki Sidekick,
Dozier Al
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| Re: Header Wrap [message #347986 is a reply to message #347984] |
Mon, 16 September 2019 21:49 |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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Senior Member |
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Probably the type of gasket. I have had real good luck with Remflex hanging in for years. They do make for headers or manifolds as they are different.
MikeB wrote on Mon, 16 September 2019 22:40Well ok. My awesome PO installed Ceramic Thorley headers so I guess I'm set. One thing he did say is that occasionally the exhaust gasket blows in the middle and he left me a few extra gaskets. What's that all about?
C. Boyd
76 Crestmont
East Tennessee
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