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SuzukiSavage.com
/cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Mr. Exhaust Wrap Yes or No?! /cgi-bin/YaBB.pl?num=1333028583 Message started by mataux on 03/29/12 at 06:43:03 |
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Title: Mr. Exhaust Wrap Yes or No?! Post by mataux on 03/29/12 at 06:43:03 Exhaust Wrap Yes or No. Shall I? or shall i not? Why or why not. Is exhaust wrap cause damage to the engine? |
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Title: Re: Mr. Exhaust Wrap Yes or No?! Post by Retread on 03/29/12 at 07:01:26 It is mostly a matter of looks, it will keep you from burning your hands, feet, does hold temp longer on cool down which will keep exhaust valve from warpage (Although I have never heard of this happening unless NO exhaust pipe was present).. But it won't hurt anything, will trap moisture in wrap and cause surface rust on pipe wrapped... |
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Title: Re: Mr. Exhaust Wrap Yes or No?! Post by spacepirates on 03/29/12 at 08:32:31 it will trap moisture... but only while the bike isn't running. That exhaust gets hot enough to evaporate moisture out of the wrap pretty quick. wrap will accelerate rust if it gets wet while the bike is cool. In some headers, wrap keeps the pipe hotter, allowing gasses to move faster giving a boost in performance. Our header doesn't get any performance benefit from being wrapped; it is purely aesthetic aside from preventing burns (though burns will still happen if something touches it for a longer time, the wrap just slows the rate at which heat is transferred to whatever touches it). I've got mine wrapped so that I could ditch the heat shield and to cover up some blemished on the pipe that were already there. It also prevents me from burning my knuckles when working on the engine hot, BUT i still burn a bit of rubber from my boots off on it if i rest my boot there (because I removed the heat shield by the right foot peg). |
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Title: Re: Mr. Exhaust Wrap Yes or No?! Post by Savage_Rob on 03/29/12 at 11:44:20 I tried the wrap but when it gets wet the steam doesn't smell that great. I had the header ceramic coated instead and removed the heat shield. If the high temp black paint wears off of my MAC muffler to any great extent, I may do the same to it. |
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Title: Re: Mr. Exhaust Wrap Yes or No?! Post by spacepirates on 03/29/12 at 13:25:40 55677067616359546964060 wrote:
How expensive is it for ceramic coating and how does that hold up to use/abuse? |
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Title: Re: Mr. Exhaust Wrap Yes or No?! Post by Savage_Rob on 03/29/12 at 17:50:34 I had the ceramic done in 2007 by a guy I found in Irving, TX. He was retired and had converted his garage to a workshop with large ovens (kilns?) where all he did was ceramic coat stuff as a part-time business; mostly custom exhausts but he did engine blocks and such too. I think he's since retired fully and doesn't do it anymore as his web site is no longer functional and he was probably in his early 70's when I had this done. It ran me around $50 at that time but it was almost 5 years ago. The stuff is extremely tough. The guy took a couple of pieces he'd coated previously and banged them together pretty hard; there wasn't a scratch or chip at all. It definitely cuts down on the radiant heat too. Below is a link to that thread. When I was searching for it, I found other, more recent posts where they said it was about $100. http://suzukisavage.com/cgi-bin/YaBB.pl?num=1178810607/ |
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Title: Re: Mr. Exhaust Wrap Yes or No?! Post by highlander10 on 03/31/12 at 06:53:50 Hey savages, since we discuss about exhaust wrap, do you know how many meters or inches i need so as to wrap the exhaust? ;) |
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Title: Re: Mr. Exhaust Wrap Yes or No?! Post by built2last66 on 03/31/12 at 07:31:11 If you have a nice shiny header pipe and want to keep it that way, don't wrap it, because it will take alot of cleaning to restore the chrome if you take the wrap off. Otherwise, wrap it with DEI titanium.. It won't cause damage to the engine. |
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Title: Re: Mr. Exhaust Wrap Yes or No?! Post by Savage_Rob on 04/01/12 at 20:46:29 37203C392167393426216363550 wrote:
Even that may not be enough. My header was "blued" to a honey color before I added the wrap. When I removed it weeks later it was blued very badly. The is was one reason I began looking into ceramic coatings. |
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Title: Re: Mr. Exhaust Wrap Yes or No?! Post by Gyrobob on 04/03/12 at 05:10:05 494A5B595F4A53485B4E5F493A0 wrote:
Does the bike spend more time running or not running? |
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Title: Re: Mr. Exhaust Wrap Yes or No?! Post by spacepirates on 04/03/12 at 05:46:15 013F3429242924460 wrote:
is the bike exposed to more moisture running or not running? |
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Title: Re: Mr. Exhaust Wrap Yes or No?! Post by Gyrobob on 04/03/12 at 09:56:07 7172636167726B7063766771020 wrote:
is the bike exposed to more moisture running or not running?[/quote] I asked you first. Exposure to moisture while running is mostly irrelevant, anyway, since it is exposed to a thousand times more moisture (duration) while parked. |
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Title: Re: Mr. Exhaust Wrap Yes or No?! Post by spacepirates on 04/03/12 at 10:27:05 417F7469646964060 wrote:
bah, i disagree, but I don't think arguing my point will get me anywhere. I am lucky enough to park in a heated garage, so my bike isn't exposed to almost any moisture when compared to riding in all weather conditions (including plenty of rainy days here in Pittsburgh). Last year I had my bike die on me because I tried to ride through a puddle that hid its true depth to me (hint: it ended up being significantly deeper than the opening of my exhaust). Even sitting in a garage with light humidity for a year wouldn't added up to that amount of moisture, not that turning the savage into a submarine is a typical use case. besides, unless water is actively getting on your bike when it is stored (at least put a cover on it, come on!) it wouldn't be much different with or without wrap. if you don't like the look of it, fine, so be it. i can take that as an acceptable answer. if you argue that our bikes' triple-walled header is going to rust out orders of magnitude faster, i just don't buy it. faster, sure, but not that fast. |
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Title: Re: Mr. Exhaust Wrap Yes or No?! Post by Gyrobob on 04/03/12 at 10:59:18 3E3D2C2E283D243F2C39283E4D0 wrote:
bah, i disagree, but I don't think arguing my point will get me anywhere. I am lucky enough to park in a heated garage, so my bike isn't exposed to almost any moisture when compared to riding in all weather conditions (including plenty of rainy days here in Pittsburgh). Last year I had my bike die on me because I tried to ride through a puddle that hid its true depth to me (hint: it ended up being significantly deeper than the opening of my exhaust). Even sitting in a garage with light humidity for a year wouldn't added up to that amount of moisture, not that turning the savage into a submarine is a typical use case. besides, unless water is actively getting on your bike when it is stored (at least put a cover on it, come on!) it wouldn't be much different with or without wrap. if you don't like the look of it, fine, so be it. i can take that as an acceptable answer. if you argue that our bikes' triple-walled header is going to rust out orders of magnitude faster, i just don't buy it. faster, sure, but not that fast. [/quote] The fact you don't buy it just means you don't understand. Do a little experiment. Go get a piece of steel tubing and wrap maybe 6" of it in cloth, or, even better, if you have some exhaust wrap to spare, use that. Put it on shelf near where you keep your bike, and leave it alone for a few months. After that, come back and see which is corroded more, the unwrapped part or the wrapped part. On a bike with a header sweater, riding around in the rain will have almost no effect at all because the water is steamed off immediately. It's the long term effect of a very tiny bit of corrosion each day (temperature ups and downs) caused by moisture being trapped, condensed, and evaporated by the exhaust wrap that discolors and even corrodes a wrapped exhaust pipe. |
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Title: Re: Mr. Exhaust Wrap Yes or No?! Post by Retread on 04/03/12 at 13:53:09 Darn, worse than the oil wars..... Can I soak the wrap in oil first? What kind? ;D |
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Title: Re: Mr. Exhaust Wrap Yes or No?! Post by Gyrobob on 04/03/12 at 18:36:54 093E2F293E3A3F5B0 wrote:
What kind of oil or what kind of wrap? |
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Title: Re: Mr. Exhaust Wrap Yes or No?! Post by mpescatori on 04/04/12 at 00:38:38 My own two cents' worth. The "Header wrap" issue is widely discussed in Classic car Forums, especially among those who race classic cars. It has been generally acknowledged that header wrap will cause the headers to retain much more heat than was originally planned by the engine designers; the excess heat will then either disperse as hotter exhaus gases (hence, the exhaust system has to be redesigned) or remain within the head and, especially among 4 - 8 cylinder cars, cause head warp and exhaust valve wear and seizure. Of course, the Savage engine is by no means to be considered a race-tuned engine, nor do we rider her in "fast lap" style... so, why worry ? The point is that header wrap is not good for a healthy head, especially if we consider the engine is air-cooled. So, unless somebody rides up Smoky Mountain Pass in the deep of winter, I personally see no point in wrapping the exhaust. For those unsure, check classic bikes (especially the Brits and the Italians) you will see that the exhaust pipe clamp / flange is actually finned, to help disperse heat. http://smmotorco.com/images/british/rsz_1_1-4_inches.jpg B U T If you MUST wrap it, read this advice I found in a HotRod website: If you choose to wrap the header you need to prep it first. You need to paint it with HIGH degree resistent paint. After that you can wrap. If yoursis a daily driven water will not stay trapped as it will evaporate. Premature header welding failures are known to happen on CHROMED cheap headers replica. 8-) |
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