To wrap or not to wrap?
#955010
03/21/11 05:26 AM
03/21/11 05:26 AM
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Joined: Jan 2003
Posts: 3,943 Melbourne.....Oz-land
Moparmal
OP
master
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OP
master
Joined: Jan 2003
Posts: 3,943
Melbourne.....Oz-land
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Anyone here done a back to back HP, MPH or ET comparison with wrapped headers vs bare? What were your experiences?
67 RO23 clone with 6.1 SRT Hemi and dual quads. Soon to have Drag Pak induction and Throttle body.
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Re: To wrap or not to wrap?
[Re: Moparmal]
#955011
03/21/11 09:00 AM
03/21/11 09:00 AM
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Joined: Feb 2004
Posts: 6,257 acworth / N. georgia - south e...
cheapstreetdustr
master
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master
Joined: Feb 2004
Posts: 6,257
acworth / N. georgia - south e...
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mine are wrapped.. i suggest a few things if you wrap them. first .. start at the collector end and wind toward the primarys.. i like to use stainless steel saftey wire to hold and or set each section or at hard turns.. once its all done..i buy a few cans of vht aluminum paint..and soak the heck out of the whole setup..i use a full can on each header..maybe 1.5 cans on each header...you let it soak in and keep applying.. this is the best way to make them last the longest and it will repell oil and water.. and prevent it from getting freyed...and falling apart... it almost becomes a coating... i have no opinion on power differences.. but it sure is cooler under my hood in the hot summer. i can grab a pipe a few minutes after a pass.. makes pulling plugs less dangerous..and you sweat less..the temp difference is very noticeable. best of luck
oh and wear an old throwaway longsleeve shirt and tape your gloves to your rists/sleeves ..that fiber wrap will itch for weeks after wards... cheapst
365" Iron J heads,,3480lbs best 1.39 60ft on SS springs.10.54,124 mph ...6.67 1/8th et.average 60fts 1.46 w/ small cam &.063 no2 pill tagged & insured [image][/image]
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Re: To wrap or not to wrap?
[Re: bonefish]
#955015
03/21/11 01:19 PM
03/21/11 01:19 PM
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Joined: Jul 2003
Posts: 1,212 Canton, Ohio
Crazy68Dart
pro stock
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pro stock
Joined: Jul 2003
Posts: 1,212
Canton, Ohio
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What are your headers like underneath? Coated, painted, bare?
383, Hemi 4-Speed, AlterKtion, D60
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Re: To wrap or not to wrap?
[Re: Moparmal]
#955020
03/22/11 01:08 AM
03/22/11 01:08 AM
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Joined: Oct 2004
Posts: 16,479 Canada
CrAzYMoPaRGuY
I Live Here
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I Live Here
Joined: Oct 2004
Posts: 16,479
Canada
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Any headers that are wrapped should be DRY DAY DRIVEN cars only!!
I've seen tons of absolutely rotted headers that were wrapped. We bought a brand new set of headers for my buddy's 390 Javelin, two years later it had exhaust leaks, and as he was about to pull the engine we were astounded- we grabbed the wrapped headers tubes and they crushed in our hands!!! It was like they were made out of paper in spots. We learned later that headers that are wrapped on daily drivers usually don't have long header life!!
CrAzYMoPaRGuY
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Re: To wrap or not to wrap?
[Re: CrAzYMoPaRGuY]
#955021
03/22/11 01:34 AM
03/22/11 01:34 AM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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I'm a firm believer in coated pipes... a good shop does them inside and out side... the first bend in any pipe is the one that gets the big temp(right at the outside of the bend)
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Re: To wrap or not to wrap?
[Re: MR_P_BODY]
#955022
03/22/11 10:46 PM
03/22/11 10:46 PM
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Joined: Feb 2004
Posts: 6,257 acworth / N. georgia - south e...
cheapstreetdustr
master
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master
Joined: Feb 2004
Posts: 6,257
acworth / N. georgia - south e...
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my headers are TTi ..anyone who owns them know they have thick pipe material on them. my headers where ceramic coated before i wrapped them.. the VHT silver super high temp paint goes on after the wrap...you absolutely soak it on .. it looks like they where almost dipped in the paint.. it holds up way way better then just raw wrap material.. this is the second time ive wrapped them..the pipes are from 04.. no issues.. the change in underhood temp from just the ceramic coating..to the wrap is a TON different. i can park my car after a pass (on no2) pull my jacket...logg my time slip and reach in and grab a head pipe full fisted...its hot...but not hot enough for me to get burnt..fyi... and just leaning in under the hood to adjust carb or timing...is noticably cooler...even had friends notice it.... the reason i start at collector and go to head pipe ..is the collector section of the pipe holds up much better...as the forward motion wont,,wind,rain,stones..even bumping something while rolling...wond pull the wrap apart... the first time i wrapped it head pipe to collector..and it came apart down there.. cheapst..fwiw...
365" Iron J heads,,3480lbs best 1.39 60ft on SS springs.10.54,124 mph ...6.67 1/8th et.average 60fts 1.46 w/ small cam &.063 no2 pill tagged & insured [image][/image]
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