Impellor Member 835 Member For: 14y 8m 6d Gender: Not Telling Posted 16/12/12 09:11 AM Share Posted 16/12/12 09:11 AM A quality Ceramic coating is best. Heat wrap will shorten the life of the material beneath. Cast iron tolerates it if the casting is high quality. Mild steel will last for a while and stainless a bit longer. The factory dimpled shields do a good job actually and some of the better high mounts use the same product. If your handy and patient, some brackets and so forth to put the dimpled shields on again is a real good idea.Use what you bought and plan for the next improvement.BTW - for the wiki addicts.... it is not recognised by any credible researchers as a good source.Just a couple things, surely you don't think that a factory cast iron manifold is a quality casting. Just a hint quality castings do not crack. Secondly are you in your first year of Uni, because that's what they told me too, that Wiki is an unreliable source as there is no provision for peer review. But hey Jetsnot thinks he is funny, and I think that is his only known source of information. Unfortunately he doesn't have access to a Uni database.Anyway don't wrap a cast iron manifold.Cheers 1 Link to comment Share on other sites More sharing options...
mic Donating Members 1,725 Member For: 17y 2m 8d Gender: Male Posted 16/12/12 09:43 AM Share Posted 16/12/12 09:43 AM Thought I should do a little investigating into the subject. Now I haven't spent hours, but the general consensous is that exhaust wrap should not be used on cast iron applications. Based on the premise, that during the casting process there are wall inconsistencies. What ocurs is the thinner areas of the casting will crack. The thinner areas become hot spots, so the heat distribution becomes uneven, causing the cast iron to crack. Stainless steel has no problems at all, as far as I can see.Cheersthat is an absolute load of crap. why do u think 6boost only make manis from steam pipe ? because stainless expands and contracts 3 times more. op just wrap it bud if u want it will lower temps. 2 Link to comment Share on other sites More sharing options...
sexual harrassment panda I see a red door and I want to paint it black Donating Members 5,919 Member For: 15y 5m Gender: Male Location: Far north queensland Posted 16/12/12 09:52 AM Share Posted 16/12/12 09:52 AM ^^^^^^^^^^THIS GUY MAKETH SENSE Link to comment Share on other sites More sharing options...
Impellor Member 835 Member For: 14y 8m 6d Gender: Not Telling Posted 16/12/12 09:56 PM Share Posted 16/12/12 09:56 PM (edited) Gentleman, there is no problem wrapping steam pipe or stainless. The problem once again when wrapping a factory cast iron item is that due to wall inconsistences created during the casting process, any thin areas create hot spots, that lead to cracking. However, this is somewhat a generalisation, the Ford manifold may be very well cast. But I know of many that have cracked without the use of wrapping. Also the casting on the rear of the garrett turbo cracks also, again without being wrapped.I am happy to debate the subject with you, but please qualify your statement with some sort of expanation (and not that stainless expands 3X more, as this has nothing to do with whether it can be wrapped or not), as facts will make you money, and opinions will keep you broke.Cheers Edited 16/12/12 09:57 PM by Impellor Link to comment Share on other sites More sharing options...
mic Donating Members 1,725 Member For: 17y 2m 8d Gender: Male Posted 17/12/12 12:47 AM Share Posted 17/12/12 12:47 AM Stainless expands and contracts 3 times more than steampipe. That is a direct quote from Kyle at 6boost. And on the contrare its not ok to heat wrap stainless or steampipe because they have welds ! Welds crack so wrong again ! I have a 6boost on my falcon and gtr I fkn know mate ! If any mani can be wrapped its the factory cast ones they have no welds !! Dumbass y don't u give Kyle a call then copy and paste what he says ! Link to comment Share on other sites More sharing options...
Paulie2256 Donating Members 7,441 Member For: 16y 4m 4d Gender: Male Location: SE Melbourne Posted 17/12/12 01:38 AM Share Posted 17/12/12 01:38 AM Trust experience (6boost) not authority (internet articles,uni database). better still, wrap your own exhaust and post results. cheers. 1 Link to comment Share on other sites More sharing options...
Cameron02 Member 164 Member For: 12y 3m 16d Posted 20/12/12 03:01 AM Share Posted 20/12/12 03:01 AM Warning:When I was younger heat wrap used to have asbestos in it (worked great). Of course no Australian manufacturer would use it now but just be carefull if you are importing it from a country where asbestos is still legal.On a lighter note. I had a 68 dodge I had a 440 rebuilt to magnum specs. The exhaust got so hot during running it that the plug leads caught fire. I had to get fire proof leads and wrap them with asbestos bandage (heat wrap). The fuel line was a good 40 cm from the exhaust but the fuel was vaporising in the lines. Took me a while to work that one out.Also I have an Ac Cobra replica with a 220kw xr8 motor. I had the headers coated inside and out by HPC. Also had the rest of the exhaust including the mufflers coated on the outside. It's awesome, reduces engine bay (and cockpit) heat quit a bit and the system never rusts. I don't drive the car a lot but have not had any issues with flaking or fading. I am considering using it on my Ba as I know it will help preserve the life of the other components in the engine bay. 1 Link to comment Share on other sites More sharing options...
ms700 Moderating Team 10,170 Member For: 22y 1m 23d Gender: Male Location: Sydney Posted 20/12/12 03:05 AM Share Posted 20/12/12 03:05 AM I know boats Link to comment Share on other sites More sharing options...
SuckSqueezeBangBlow ʎǝʞuoɯ ɹoıuǝs Donating Members 1,808 Member For: 16y 3m 10d Gender: Male Posted 20/12/12 04:55 AM Share Posted 20/12/12 04:55 AM I know vaginasThe vagina (from Latin vāgīna, literally "sheath" or "scabbard") is a fibromuscular tubular tract which is a sex organ and has two main functions; sexual intercourse and childbirth. In humans, this passage leads from the opening of the vulva to theuterus (womb), but the vaginal tract ends at the cervix. Unlike men, who have only one genital orifice, women have two, the urethra and the vagina. The vaginal opening is much larger than the urethral opening, and both openings are protected by thelabia.[1][2] The inner mould of the vagina has a foldy texture which can create friction for the pen*s during intercourse. During arousal, the vagina gets moist to facilitate the entrance of the pen*s.[3Cheers cheers cheers 1 Link to comment Share on other sites More sharing options...
sexual harrassment panda I see a red door and I want to paint it black Donating Members 5,919 Member For: 15y 5m Gender: Male Location: Far north queensland Posted 20/12/12 05:49 AM Share Posted 20/12/12 05:49 AM Gentleman, there is no problem wrapping steam pipe or stainless. The problem once again when wrapping a factory cast iron item is that due to wall inconsistences created during the casting process, any thin areas create hot spots, that lead to cracking. However, this is somewhat a generalisation, the Ford manifold may be very well cast. But I know of many that have cracked without the use of wrapping. Also the casting on the rear of the garrett turbo cracks also, again without being wrapped.I am happy to debate the subject with you, but please qualify your statement with some sort of expanation (and not that stainless expands 3X more, as this has nothing to do with whether it can be wrapped or not), as facts will make you money, and opinions will keep you broke.CheersIf castings have thin spots:Why would heat wrap effect the odds of a crack?What influences chance of a crack?Why do you let metal cool by itself instead of hosing it when you weld or bend it? Link to comment Share on other sites More sharing options...
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