Header temps ; before and after coating with Jet Hot

Had the 1970 BB Hooker Super Comp. Headers Jet Hot coated at their
Mississippi plant ; elected to go with the 1300 f. Sterling Coating .
I have a Lazer Thermometer and after a good long run, i measured 532 f.
(at idle) right where the Header pipes meet the Cylinder Head , before
sending them to Jet Hot. After i got them back and re-installed, took
her out for another good run and measured a 'cool' 265 f. (at idle).
I honestly didnt think theyd make that much of a difference but it did ;
the underhood temp. is drastically lower and they look great too.


Dave

Really!!
Thats some good info. I had to refrain from driving mine most of the
summer just because it was so hot outside. Made it almost unbareable in the
cabin. That sounds like something i might want to look into

"Dave in Lake Villa" > wrote in message
...
> Had the 1970 BB Hooker Super Comp. Headers Jet Hot coated at their
> Mississippi plant ; elected to go with the 1300 f. Sterling Coating .
> I have a Lazer Thermometer and after a good long run, i measured 532 f.
> (at idle) right where the Header pipes meet the Cylinder Head , before
> sending them to Jet Hot. After i got them back and re-installed, took
> her out for another good run and measured a 'cool' 265 f. (at idle).
> I honestly didnt think theyd make that much of a difference but it did ;
> the underhood temp. is drastically lower and they look great too.
>
>
> Dave
>

Well, if you live in Texas or there abouts, then reducing the underhood
temps. just might reduce your interior temps also ... at least enough
to allow you drive y our car . Theoretically, nearby engine components
should last a bit longer too such as the steering gear box which is
literally 1/4" from one of my header pipes.

Dave in Lake Villa wrote:

>Had the 1970 BB Hooker Super Comp. Headers Jet Hot coated at their
>Mississippi plant ; elected to go with the 1300 f. Sterling Coating .
>I have a Lazer Thermometer and after a good long run, i measured 532 f.
>(at idle) right where the Header pipes meet the Cylinder Head , before
>sending them to Jet Hot. After i got them back and re-installed, took
>her out for another good run and measured a 'cool' 265 f. (at idle).
>I honestly didnt think theyd make that much of a difference but it did ;
>the underhood temp. is drastically lower and they look great too.
>
>
>Dave
>
>
>
Plus they will scavenge better from retaining all that heat inside each
header tube instead
of it radiating out and dissipating.

--
Ric Seyler
Online Racing: RicSeyler
GPL Handicap 6.35

http://www.pcola.gulf.net/~ricseyler
remove –SPAM- from email address
--------------------------------------
"Homer no function beer well without."
- H.J. Simpson

'Plus they will scavenge better from retaining all that heat inside each
header tube instead
of it radiating out and dissipating.
--
Ric Seyler'

REPLY: I never considered that. , although i do have an 'x' in the
exhaust system directly behind the crossmember (not the best place for
it i understand).

Dave in Lake Villa wrote:

>'Plus they will scavenge better from retaining all that heat inside each
>header tube instead
>of it radiating out and dissipating.
>
>
Most of the x pipes I've seen are around the x-member area. Right behind
it I wouldn't think would make a big difference.

--
Ric Seyler
Online Racing: RicSeyler
GPL Handicap 6.35

http://www.pcola.gulf.net/~ricseyler
remove –SPAM- from email address
--------------------------------------
"Homer no function beer well without."
- H.J. Simpson