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-   600 Modifications (https://cbrforum.com/forum/600-modifications-41/)
-   -   exhaust wraps (https://cbrforum.com/forum/600-modifications-41/exhaust-wraps-43391/)

urandaman 06-30-2007 05:55 PM

exhaust wraps
 
would wrapping the headers in the heat wrap help out any... main reason for radiant heat.. not that big of a deal, but if i can wrap em up for 10bux and keep a lil bit cooler without hurting performance, then it would be a worth while "mod" for me.

any input..


and also.. the bottom part of the header where it goes 4 - 2 is dented... its flat now.. that wouldnt affect the exhaust flow really should it?

bindelsf2 06-30-2007 06:04 PM

RE: exhaust wraps
 
there is a thread on header wrap, https://cbrforum.com/m_315475/tm.htm but i did mine because i cant run a cooling fan and there was no considerable difference mainly because the heat is still trapped in the fairings, but the bad thing about wrap is that it will deteriorate your headers VERY rapidly, because heat will cause condensation in the wrap then when the bike cools it will rust your headers..

and my header is flat there to and has always been that way.

urandaman 06-30-2007 06:09 PM

RE: exhaust wraps
 
ahh, what if i got the headers dipped in the jet hot coating? would that be another alternative?
and if i went that route... just sand blast em any surface rust off em then dip em in the cleaning crap?

65ShelbyClone 07-01-2007 12:55 AM

RE: exhaust wraps
 
Wrapping will put a lot more thermal loading on the header without much benefit. The usual outcome is increased propensity to cracking in exchange for a marginal increase of thermal efficiency.

Ceramic coating is an option I am still skeptical about with regards to everyday performance.

rippn 07-01-2007 03:36 AM

RE: exhaust wraps
 
Jet, #1... it works!!!!!!!
Free and clean, Ripp'n

baxsom 07-01-2007 07:03 AM

RE: exhaust wraps
 
wrapping the header is great only if it is stainless steel. and you need to spray it after it is wrapped with a waterproofing agent like the stuff that DEI puts out for header wrap.

there is a writeup on www.rogueracing.org about a torque increase by doing it if the wrapper knows what he is doing and the tuner knows what he is doing,

I wrapped mine just to keep the header heat off of my track plastics

I recently pulled the wrap off since i dont track the 1000 ever since i got the 600 and there was no degredation to the metal even after a year.

urandaman 07-01-2007 01:08 PM

RE: exhaust wraps
 

ORIGINAL: 65ShelbyClone


Ceramic coating is an option I am still skeptical about with regards to everyday performance.

what are your concerns about everyday driving with a ceramic coated header? many cars have ceramic coated ones when they get aftermarket headers, but i dont know if they effects would be the same on a bike.

65ShelbyClone 07-01-2007 07:45 PM

RE: exhaust wraps
 
I just think there are less expensive and more effective areas to look for power. I'm also not convinced that it really lowers radiant heat. For looks and corrosion resistance, ceramic is worth considering.

I must have missed the original poster's intention. For heat shielding, yes it does work and fairly well. Just be aware of the possibility that it will shorten the life of the header. I wrapped a Honda Civic header to keep the A/C lines from melting and it did the job. The mild steel header also took the heat of daily driving without cracking(or even corroding...SoCal desert ftw!). YMMV.

urandaman 07-01-2007 11:36 PM

RE: exhaust wraps
 
im not looking for more power out of wraping or coating the header.. just being able to keep it a tad cooler would be my main intention, and looks/corrosion resistance wouldnt be a bad thing either.

baxsom 07-02-2007 09:33 PM

RE: exhaust wraps
 
it will keep the surrounding parts cooler,
i burnt my track plastics before i wrapped my oem headers. after wrapping, no more burning


urandaman 07-03-2007 12:08 AM

RE: exhaust wraps
 
i may look into the jet hot coating, see if i can get a deal on itif my buddy knows a guy who does it or not.

Pugetpower 07-10-2007 02:18 PM

RE: exhaust wraps
 
I wouldnt fool with header wrapping at all on a stock sportbike. Some race cars
used them to keep underhood heat lower and you'll see it used on some
custom choppers to keep heat off wires, plastic, legs, etc.
Header wrap on your bike will result in 0 power gain andis hard on the pipe
metal.

baxsom 07-10-2007 02:45 PM

RE: exhaust wraps
 

ORIGINAL: Pugetpower

I wouldnt fool with header wrapping at all on a stock sportbike. Some race cars
used them to keep underhood heat lower and you'll see it used on some
custom choppers to keep heat off wires, plastic, legs, etc.
Header wrap on your bike will result in 0 power gain andis hard on the pipe
metal.
perhaps you didnt read the article i posted on header wrap. if you have a good tuner, you will see gains,
not a lot but some gains none the less.

Pugetpower 07-10-2007 03:29 PM

RE: exhaust wraps
 
Im sorry. Didnt read your article but I can match yours if you like.

bindelsf2 07-10-2007 03:46 PM

RE: exhaust wraps
 
heres another good read that i found when i was doing mine...and if there isa HP gain its under 1 hp and not noticable. unless someone has a dyno sheet before and after that shows more gain than what i seen on a dyno with it.


Exhaust wrapping your headpipes can dramatically alter the gas flow & even the reversion pulse waves, especially beneficial for most stock exhaust headers when used with a slip-on as it tends to allow you to run much stronger in the mid-range (after rejetting). It keeps the exhaust gasses hotter longer which makes them easier to expel out the pipes. We all know that the hotter something is the easier it flows... problem is it is extremely difficult to get the jetting right after the wrapping mod & usually require main jets & needles outside the typical range of off the shelf jet-kits... Also wrapping a Stainless Steel headpipe will rapidly deteriorate the pipe & if you wrap a ceramic coated header, it will turn to ash within 3 months! So in the event any of you follow up on this stuff I only suggest wrapping the stock headpipes due to their heavy construction... The extra heat generated inside the pipes by the wrap will eventually destroy the stock headpipes too, but you can always find stock headpipes for sale just hanging in someone's garage... & to me the added useable horsepower (mid range)is worth replacing the stock headpipes every 3 or 4 years (if you even keep the bike that long) NOW THE KICKER: Although I have experienced minimal gains by doing this mod on many different bikes with inline motors, I have not experienced any appreciable gains with it on the RC51. Now to clarify that statement let say that my first attempt was without the benefit of the PCII to alter the fueling & there were zero changes registered on the dyno with the addition of the exhaust wrap. I do have intentions of trying it again this summer & I'll post my findings at that time. Let me also say that many RC51 owners have found it very beneficial to wrap the rear headpipe where it is in close proximity to the rear shock in an effort to keep the shock cooler from radiated heat & reduce fade.


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