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Old 06-25-2009, 10:11 AM
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Z_HighSpeed
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Default headers wrapped...





Installing next week along with a 5/16 iso spacer...

dyno before and after soon to come as well as sound clips, figured I'd share
Old 06-25-2009, 11:11 AM
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FliPPER_Z
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nice!
Old 06-25-2009, 11:16 AM
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davidv
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Looks like a bandage. Was the injury serious?

Old 06-25-2009, 11:39 AM
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Berk_Technology
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What made you choose heat wrap over jet hot coating?
Old 06-25-2009, 12:18 PM
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davidmcc
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Originally Posted by Berk_Technology
What made you choose heat wrap over jet hot coating?
my guess is that coating those headers would've probably cost more than the headers themselves.

OP. do you plan on spraying the wrapped headers with the high temp sealant? From my understanding that's the norm when wrapping headers.
Old 06-25-2009, 12:22 PM
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y0shi
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GL, i hope your headers don't crack.
Old 06-25-2009, 12:25 PM
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plumpzz
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Originally Posted by y0shi
GL, i hope your headers don't crack.
Hey man. Why would that happen?

PS: You still around? I want to get some kind of car club going. PM me.. I'm free from eng school!
Old 06-25-2009, 03:20 PM
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y0shi
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From what i understand is that when you heat wrap you header, the expansion and contraction between the pipes and flanges become more uneven. Over time, this will cause the welds to fail.

-I am not an expert in thermodynamics of metals, but that is what i've learned on the interwebs. I have my Jethot 2000'ed.
Old 06-25-2009, 03:22 PM
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Italianjoe1
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Heat wrapping is a bad idea on stainless, it speeds up corrosion and can cause premature damage (cracks, etc) due to un-even heat stress on the metal.

Jet-hot coating is usually about $100 per header for something that size, and well worth it.

Or, they're stainless, leave them be.
Old 06-25-2009, 05:14 PM
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scmtkings4
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what headers are those?
Old 06-25-2009, 05:57 PM
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Z_HighSpeed
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I'd had experience with the same manufacturer, now being sold as "AMK" but they aren't. Its a company out of New Mexico. I dealt with them for my sr20 needs back in the day, same setup, no issues for 2 yrs until I sold the car and from what I hear of the new owner he had no issues (turbo mani's)

The heat sealant is next its on order, I don't like the pepboyz type but another type coming.

Overall cost of headers heat wrapped, sealed and installed then dyno'd will be less than the cost of any "expensive" headers on the market. cost to performance I was looking at, paying $600+ for headers is just weird if you ask me (unless they are supposed to super special and give huge gains).

Install pix, clearance and dyno chart to follow eventually....
Old 06-25-2009, 06:15 PM
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gabe3d
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What kind of wrap are those, looks interesting? It's true that with uneven wrap that the headers can crack since it'll create hot spots, but it's more of a combination of it with low grade alloy used on the headers. You can see a lot of race cars using heat wrap including the Nismo Fairlady 380RS. The thermal insulation capability of the wrap has been tested to be greater then ceramic coating. I've also wrapped, silicon coated, and silicon sealed my headers.

This is with the Tomei Wrap (much easier to use) and DEI's silicon sprays.

Old 06-25-2009, 06:49 PM
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Z_HighSpeed
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^it looks easier, the wrap I've used I have had experience with, even though it sucks and burns if you touch your skin with it it ultimately does the job correctly...
Old 06-25-2009, 06:57 PM
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binder
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Originally Posted by Italianjoe1
Heat wrapping is a bad idea on stainless, it speeds up corrosion and can cause premature damage (cracks, etc) due to un-even heat stress on the metal.

Jet-hot coating is usually about $100 per header for something that size, and well worth it.

Or, they're stainless, leave them be.
that is only true on vehicles that the exhaust isn't heated up on a regular basis. If you drive the car once a week at least the headers will get hot enough to burn off excess moisture.

Some of my friends still have their muscle cars from high school that we used header wrap on with no problems. That's over 10 years on a vehicle that isn't daily driven.
Old 06-25-2009, 07:12 PM
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fabre80
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Novesh i see that you got them !! GL i have those on my car as well, please be the first to dyno as i didnt a before and after . I recieve my Berk TP tomorrow !! cant wait!
Old 06-25-2009, 07:24 PM
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gabe3d
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Yeah, keep us updated on the Dyno and result! Good luck with everything.
Old 06-26-2009, 06:46 AM
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Z_HighSpeed
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I'm going to some Z meet in landsale (NE section) tomorrow morning gana dyno in the morning.

first dyno will be:

Test Pipes
TurboXS 3" straight exhaust (no cats just a muff)
Mishimoto c/f intake
dirty wheels...lol (thats neq hp)
untuned

After install dyno will be:

Test Pipes
TurboXS 3" straight exhaust (no cats just a muff)
Mishimoto c/f intake
Headers
5/16 iso spacer
rota wheels (woot ++ hp lol)
tuned and untuned....hopefully if I can find a shop
Old 06-26-2009, 06:53 AM
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Hydrazine
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Originally Posted by gabe3d
What kind of wrap are those, looks interesting? It's true that with uneven wrap that the headers can crack since it'll create hot spots, but it's more of a combination of it with low grade alloy used on the headers. You can see a lot of race cars using heat wrap including the Nismo Fairlady 380RS. The thermal insulation capability of the wrap has been tested to be greater then ceramic coating. I've also wrapped, silicon coated, and silicon sealed my headers.

This is with the Tomei Wrap (much easier to use) and DEI's silicon sprays.

WOW! Now that's insulated!
Old 06-26-2009, 10:32 AM
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imonlykidden
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Originally Posted by Berk_Technology
What made you choose heat wrap over jet hot coating?
He possibly did not know about that option.

Watch how dirty they get!
Old 06-26-2009, 10:34 AM
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imonlykidden
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Originally Posted by gabe3d
What kind of wrap are those, looks interesting? It's true that with uneven wrap that the headers can crack since it'll create hot spots, but it's more of a combination of it with low grade alloy used on the headers. You can see a lot of race cars using heat wrap including the Nismo Fairlady 380RS. The thermal insulation capability of the wrap has been tested to be greater then ceramic coating. I've also wrapped, silicon coated, and silicon sealed my headers.

This is with the Tomei Wrap (much easier to use) and DEI's silicon sprays.

Looks like it was dunked in some kind of concoction over and over!


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