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View Poll Results: Headers; jethot or not
Hell yes it's easilly worth the extra $300 11 73.33%
No, save your money 4 26.67%
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      08-24-2012, 04:46 PM   #23
ZeD4Mr
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This is copied from a website that does coating locally.



Exhaust Header Radiated Radiated Temp
Gas Surface Heat Heat Drop
Temp Temp (uncoated) (coated)
1330 810 170 60 110
1340 810 170 60 110
1350 820 180 70 110
1380 830 180 70 110
1410 840 180 70 110
1420 840 180 70 110
1440 860 190 70 120
1510 890 190 70 120
1530 930 200 80 120

Degree (F)


It has been determined that engine efficiency improves by 1% for every 10 degree drop in under-hood temperature. If we were to use the above data, we could reasonably assume that we would obtain a 50 horsepower increase on a 500 horsepower engine.

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I drop mine off today.... $200+tax.. I wanted satin black. There's no difference in performance but the owner of the store did mentioned that it's easier to clean up the silver chrome if you ever drop oil or fluid on it than satin black. So silver chrome it is. Life warranty on coating.
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      08-24-2012, 07:42 PM   #24
ZStig
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Quote:
Originally Posted by ZeD4Mr View Post
This is copied from a website that does coating locally.



Exhaust Header Radiated Radiated Temp
Gas Surface Heat Heat Drop
Temp Temp (uncoated) (coated)
1330 810 170 60 110
1340 810 170 60 110
1350 820 180 70 110
1380 830 180 70 110
1410 840 180 70 110
1420 840 180 70 110
1440 860 190 70 120
1510 890 190 70 120
1530 930 200 80 120

Degree (F)


It has been determined that engine efficiency improves by 1% for every 10 degree drop in under-hood temperature. If we were to use the above data, we could reasonably assume that we would obtain a 50 horsepower increase on a 500 horsepower engine.

---------------------

I drop mine off today.... $200+tax.. I wanted satin black. There's no difference in performance but the owner of the store did mentioned that it's easier to clean up the silver chrome if you ever drop oil or fluid on it than satin black. So silver chrome it is. Life warranty on coating.
I definitely didn't pick up 50hp, lol
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      08-24-2012, 08:13 PM   #25
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Quote:
Originally Posted by DanFromTucson
FYI, coating the headers helps retain heat, which helps with exhaust gas velocity and adds a few horsepower. It also lowers underhood temps as others have mentioned.

Additionally, it helps the cats get up to operating temperature sooner, so it helps with emissions.
Exactly this. Worth the $
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