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K_Dude97

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Reply with quote  #1 
So I recently added nitrous to my 525 and took it to st Anthony to test her out. ended up having a blast the nitrous gave me the extra juice to keep up with some banshees and pretty much wipe out any 4 stroke i am planning on sending my motor to CT this winter to have it completely built in hopes that I will be able to beat most things on the hill. anyway after the 3 maybe 4 hour ride in the dunes drag racing non stop i noticed my exaust stickers were burning off as far as i can tell no damage to the engine or the exahust itself but it does worry me abit idk if was the minimal cooldown breaks or the use of nitrous or what that caused this i checked my oil and coolant looked good to me. just thoughs on what could have caused this. I also was using a 110 octane mixed with 91 thought it would be fine but maybe the stock engine couldn't handle it. or was it a poor design on fmf part

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Fuj

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Reply with quote  #2 
I never thought stickers on a can was a smart factory
thing when it comes to heat !!. I'm thinking it may be time
to look inside the can itself to see if the packing is gone
in that area. My old White Brother cans would start to
discolor just before the center section, generally caused
by the packing blown out.

St Anthony !! My all time favorite sand box. It's more fun
coming down from the Devil's Dune then it is to climb it...LOL

By the way....What was the percentage of fuel mix, and
how big of a shot of nitrous ?

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Keeping my bad Kharma intact since 1952
K_Dude97

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Reply with quote  #3 
St Anthony is by far my favorite place to ride!
It was about 60% 110 and 40% 91. And it was a 20hp shot of nitrous
distraction628

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Reply with quote  #4 
Change your Mix to 1 gal of  110 to 4 gal of 91 and go up your main 1 full size , like if your a 160 go to 170  Just to cover the NOS. Stock motor only needs 90 octane .  Just my 2cents worth. Yes check your Packing
Love that SAND BOX!!!!!!

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07 525, 06 500, 10 525s 09 RZRs, 04 Ram 2500 Cummins 6spd, 08 Fuzion toy-hauler
TxOutlawRider

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Reply with quote  #5 
CT Racing said when the decals start to melt or discolor, its time to repack it.
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2007 Outlaw IRS

"Outlaws are the Chuck Norris of the quad world."
dirtymike

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Reply with quote  #6 
What am I missing here lol what mods do you have to run nitrous?
K_Dude97

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Reply with quote  #7 
Took the exhaust apart and found very little packing replaced on that and works alot better thanks.
Fuj

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Reply with quote  #8 
Yeah, one of the items most don't bother to check.
Packing does not last that long when run hard. Best
to check it at least once a year, and if used hard,
twice a year. Yep, you picked back up a couple of
lost ponies. Throttle should also feel more responsive.

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Keeping my bad Kharma intact since 1952
TxOutlawRider

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Reply with quote  #9 
I ended up buying a few pounds of stainless steel "wool" roll awhile back.  I repacked the outlaw and still have enough left to repack my scrambler, my kid's quad, and probable still have some left over.  I don't know if it deadens sound as well as fiberglass... but it should last forever. 
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2007 Outlaw IRS

"Outlaws are the Chuck Norris of the quad world."
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