950R SE header pipe wrap

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by JOKER650, Apr 5, 2008.

  1. JOKER650

    JOKER650 Long timer

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    Pros / Cons ?

    To keep the heat away from some of other parts...such as regulator and swing arm brgs/seals. Prevent boot or riding pants damage . Noticed the swing arm gets almost too hot to touch at the pivot point from the rear cyl pipe .
    Once I start riding some slower bush trails this area gunna git Real hot !
    I still have the stock cans and will be installing a set of WINGS soon, maybe this will clear up this problem .

    Thanks :freaky
    #1
  2. MookieBlaylock

    MookieBlaylock Long timer

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    what is your jetting ? i just went to 155/160 ,45pilot, 2 turns iams,prefilter,dna filter, 70 iaj and it is sick -runs cooler than the basic prefilter setup also

    if you are jetted stock it runs way too hot
    #2
  3. forsyth793

    forsyth793 Been here awhile

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    JOKER

    I have considered ceramic coating the pipes inside and outside. I have been told by the coaters this will reduce temperatures, but I guess I'am somewhat of a skeptic. Anybody with practical experience on this matter........
    #3
  4. JOKER650

    JOKER650 Long timer

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    Yeah it's all stock right now. Next week it will be "Tittled Up"....jetting and cans.
    #4
  5. ADVMax

    ADVMax Sporting Foole

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    That was EXACTLY the stock jetting on mine - I went to 160 - 165.
    #5
  6. MookieBlaylock

    MookieBlaylock Long timer

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    stock is 2nd clip,155/60,42 ,2 1/4 ,paper filter---45,pre,dna,and especially ken's(head2wind's/k2m's ) 70 iaj idea is is not stock but when my bike was stock going upto 3rd clip 160/165 helped the top end

    i think sending the pipes out to get coated with heat treatment stuff would be trick but not in my budget - http://www.hpcoatings.com/am/default.aspx
    #6
  7. The Big Bear

    The Big Bear THE BIG BEAR

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    Joker,

    I melted two sets of pants and then wrapped mine.:D

    I love it-----dropped the temp in a huge way. Rear shock does not seem to get as hot, not as much heat going over me and when I cross water now my goggles do not get the steam treatment.

    It took me around two to three hours total time taking everything off and wrapping. Someone did not agree with my De-cat times but that is what it took me.

    Only thing is I did it in the black but it is already starting to fade out but I bought the black silicone paint and it helps keep the temps down as well.

    I am anal at keeping my bikes clean after I ride----my father says it is a reflection of the person and how they respect things.

    In conclusion it is one of the things I would do on the SE

    The Big Bear
    [​IMG][​IMG]
    [​IMG][​IMG]
    #7
  8. KTMSER

    KTMSER Big bike friendly

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    Take the wrap off!!!!

    Mine lasted 12000 miles and I had to replace both headers & the H pipe!!

    These pipes are only 1mm thick to start with...

    The new system I have is getting sent over to HP Coatings

    I have wrapped a lot of headers and never had any of them rot like these did.
    I live in a dry climate too and after washing it I would always run it to dry the wrap.
    Replacing the whole system was $$.....:cry

    Pics to follow...
    #8
  9. KTMSER

    KTMSER Big bike friendly

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    Here are the pics.....

    Front header...

    [​IMG]

    Rear header....

    [​IMG]

    The H pipe is still on the bike but it is fooked up to

    I had to install the new headers for a ride a couple weeks ago but they are coming back off to send them over to HP..

    H pipe...pics suck

    [​IMG]

    There you are, learn from my mistake......:deal
    #9
  10. Nowwhat

    Nowwhat I'll Go Second...

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    Ceramic coating is amazing stuff.....have it on my headers.....
    #10
  11. SRhooter

    SRhooter SRhooter

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    Dang, and I was just thinking about wrapping my pipes today after burning some holes in a new pair of over the boot riding pants.
    #11
  12. HappyGoLucky

    HappyGoLucky Goeie Grys Giftige Gert!

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    :cry sorry for your costly lesson mate. Quite the lesson there.
    #12
  13. JOKER650

    JOKER650 Long timer

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    SOLD..... to the man with the BIG yellow face !

    Thanks, I have now made up my mind :freaky
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  14. forsyth793

    forsyth793 Been here awhile

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    Did you notice temp changes as significant or otherwise????????????
    #14
  15. The Big Bear

    The Big Bear THE BIG BEAR

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    Just got back from Borrego Springs been there since Friday,

    Windy but the weather was great, half the people out there right now because they are toe lazy to get an early start before the heat comes up.

    Well on the subject, there goes three hours of labor work total on my pipes; your pictures scared the crap out of me!!!!:eek1

    Guess I will be taking that shit off if it does that to them!!!:huh :huh :huh


    How long did you have the wrap on your bike???:deal

    I know you said 12000 miles but One year??? Two Years???:deal

    I have been doing the old trick of making sure after I wash it to ride it until they are completely dry and no moisture but your pictures make me think it is not enough.

    They must be some really thin pipes.

    Still, I can't imagine how much replacing the the whole setup runs???

    Expensive mistake as your pictures show,

    This is why I love this site to keep people from repeating costly mistakes thanks for the heads up.

    The Big Bear
    #15
  16. tahoeacr

    tahoeacr Long timer

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    KTMSER, did you end up having headers built? $400.00 for the stockers sucks.
    #16
  17. KTMSER

    KTMSER Big bike friendly

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    The Big Bear,

    The wrap was on there right at one year.

    Yes it is thin shit 1mm..:huh

    I always made sure the wrap was dry after washing


    tahoeacr,

    I checked into it and have a header shop that will do it but he wants to do 25 sets at a time! So it would end up being about the same price as the stockers give or take a little, but that would include the ceramic coating.


    The stocker's list for around 220.00 apiece & the H pipe a little more.

    So I am into this lesson for 600.00 plus graphite rings and gaskets.:bluduh
    #17
  18. Head2Wind

    Head2Wind MotorcycleMayhem

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    As I discovered, as did KTMSER in another way, that the header system is mild steel that is chrome plated. I assumed (incorrectly) that they were stainless steel of some alloy. Here is a neat clip from one of my favorite references: Burns Stainless (www.burnsstainless.com)

    "Stainless steel typically has a rather low carbon content, in the range of .08% to .15%, and sometimes as low as .03%. The carbon is needed for hardness, but it also can cause the stainless to become susceptible to corrosion at high temperatures. What happens is this: when chromium-nickel steel is heated to a temperature range of 800° to 1590°F, the carbon in the steel combines with chromium to form chromium carbides. This transformation is called carbide precipitation and reduces the corrosion resistance of the steel. The chromium is reduced in this heat-affected area and makes the steel subject to what is known as intergranular corrosion. Some stainless steels are known as low carbon grades to minimize this carbide precipitation; others, such as 321, are special alloys that reduce carbide precipitation by combining and stabilizing the chromium at elevated temperatures.
    You may have heard Smokey Yunick talk about maintaining high exhaust velocity and increase scavenging by covering headers with a thermal wrap. In addition, there are companies that coat headers with a thermal barrier, typically some type of ceramic formula, in order to keep the heat inside the exhaust system. Stainless steel performs this function without the need for add-ons because it has a much lower coefficient of thermal conductivity, thereby keeping more heat inside and transmitting it to the header outlet. Radiated heat is perhaps the most important reason to wrap or ceramic coat the headers to protect the car and the driver from excessive, fatiguing high temperatures.
    Typical 1010 carbon (mild) steel conducts 219% more heat per foot than do the types of stainless steel we use in header fabrication. By contrast, quite a bit more heat stays inside the stainless header tubes and does not get passed into the surrounding air. By not allowing the contraction of the cooling gases as they flow down the tubes, more exhaust velocity is retained which promotes better scavenging at the collector. This retention of velocity increases the overall header efficiency.
    You've probably seen Indy cars with their enclosed engine compartments and thermal clam-shell enclosures around their turbocharger headers. They must thermally wrap their exhaust pipes just so the radiant heat off the tubes won't cause fires or melt any critical systems. In this case headers made out of mild steel would completely fail and break apart due to the severe heat retention, let alone scale and send death particles into the turbocharger, ruining the turbine blades. 321 stainless steel has excellent high temperature fatigue resistance in this enclosed application and does a darn good job of living in this hostile environment better than any other material except the ultra-high nickel content steels ( such an Inconel ), which are hard to find, very difficult to work with and extremely expensive."
    #18
  19. HappyGoLucky

    HappyGoLucky Goeie Grys Giftige Gert!

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    Thanks guys, great intel. Suffice to say it would be interesting if the crowd would be keen to have stainless headers and collectors made up...
    #19
  20. cpmodem

    cpmodem Orange Caveman

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    Count me in for a set.
    :freaky
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