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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Mon, Sep-11-2017, 04:51:55 PM   #1
thonas
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Default To coat or not to coat...Headers?

Experiences with Swain Tech White Lightning Coating? I am thinking of having my Supersprint V1 stepped headers coated.
Thanks!!

http://swaintech.com/race-coatings/r...aust-coatings/
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Old Mon, Sep-11-2017, 05:00:48 PM   #2
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Default Re: To coat or not to coat...Headers?

Interested on this as well. For what it's worth, my car is street driven and not tracked. It also is an SMG (so maybe it's worth it to keep engine bay temps down)?
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Old Mon, Sep-11-2017, 05:04:22 PM   #3
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Default Re: To coat or not to coat...Headers?

IMO not worth it on a street car


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Old Mon, Sep-11-2017, 05:56:02 PM   #4
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Default Re: To coat or not to coat...Headers?

My V1's were done when I got them, I'm not sure that it's worth it unless you have a race setup. It's kind of expensive and takes a long time to get done.

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Old Mon, Sep-11-2017, 06:01:22 PM   #5
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Default Re: To coat or not to coat...Headers?

Its not worth it on a street car - and really not much worth it on a track car.

Full race? Sure.
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Old Tue, Sep-12-2017, 02:36:29 PM   #6
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Default Re: To coat or not to coat...Headers?

I would image this helps keep engine temps down... even if it's a few degrees - that's worth it to me.
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Old Tue, Sep-12-2017, 03:36:27 PM   #7
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Default Re: To coat or not to coat...Headers?

I did it, because I didn't want to forever regret not doing it... which I would have if I hadn't.

I doubt there's much benefit. Certainly none that I could perceive.

That said, whatever benefit it has is benefit without compromise-- lower under hood temps is not only better for engine temps-- it also keeps all the plastic/rubber bits from getting brittle as fast.
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Old Tue, Sep-12-2017, 03:55:51 PM   #8
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Default Re: To coat or not to coat...Headers?

Quote:
Originally Posted by Obioban View Post
I did it, because I didn't want to forever regret not doing it... which I would have if I hadn't.

I doubt there's much benefit. Certainly none that I could perceive.

That said, whatever benefit it has is benefit without compromise-- lower under hood temps is not only better for engine temps-- it also keeps all the plastic/rubber bits from getting brittle as fast.
Many of our customers do it to just have piece of mind.
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Old Tue, Sep-12-2017, 08:09:07 PM   #9
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Default Re: To coat or not to coat...Headers?

Quote:
Originally Posted by evolve_auto View Post
Many of our customers do it to just have piece of mind.
That's it. It DOES reduce under-hood temps and hence, the temps experienced by all nearby parts, and that is a good thing.

--Peter
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Discussing To coat or not to coat...Headers? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)