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xc 500 mods?
- I want to kno if I could do some mods to my xc 500 w/o putting a bigger engine in
started by Stevemullin
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March 19th 2008 at 6:54 PM
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Stevemullin
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6 Posts
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Member Since: March 19th 2008
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if I were to extend the 121 track and rails to a 136 rail and track w/o putting a bigger motor in. I was thinking about putting a 1.5 paddle track on it to. Could I just put power valves and gear it down a little, or would the Polaris 500 not be able to handle it. Please help, I need to kno.
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March 19th 2008 at 7:03 PM
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driftpounder
Canadian Psycho
driftpounder snow is coming end of the week now.
Updated Yesterday at 12:41 PM
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1506 Posts 
Group: Members
Member Since: April 26th 2006
Location: Porcupine Plain/Saskatoon, Saskatchewan, Canada
Current Sled: 2006 Compfusion
2008-2009 Miles: 502
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Your 500 should handle it, don't expect it to set a land speed record after though. I would get the VES top end and an AAEN pipe for it, will waken' it up alot.
'06 Fusion 700 0 miles just bought it
High Flow SLP Air Box
Hot Air Elimination Kit
MBRP
136/15/1.5 Ripsaw tracks usa kit
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March 19th 2008 at 7:06 PM
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Stevemullin
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6 Posts
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Quote originally posted by driftpounder
Your 500 should handle it, don't expect it to set a land speed record after though. I would get the VES top end and an AAEN pipe for it, will waken' it up alot.
VES top end? Wats that
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March 19th 2008 at 7:09 PM
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PolarisXcSp600
Scars are like tattoo's...except scars have better stories.
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216 Posts 
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Member Since: January 30th 2008
Location: camden, new york
Current Sled: 2003 xcsp 600
2008-2009 Miles: 2000
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exhaust valves^^^^
what year 500 is it?
WHITE Knuckle Racing
after no fear comes...OH $H!T
when in doubt throtle out!
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March 19th 2008 at 7:15 PM
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Stevemullin
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6 Posts
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Quote originally posted by PolarisXcSp600
exhaust valves^^^^
what year 500 is it?
1999 stock everything but k&n filters, bar risers, & mbrp can
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March 19th 2008 at 7:22 PM
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PolarisXcSp600
Scars are like tattoo's...except scars have better stories.
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216 Posts
Group: Members
Member Since: January 30th 2008
Location: camden, new york
Current Sled: 2003 xcsp 600
2008-2009 Miles: 2000
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ok then i belive that your sled doesnt have exhaust valves. if i was you i would do as DRIFTPOUNDER suggested and get the VES top end and the AAEN pipe. and if you have the money have some clutch work done and seeing how your not trying to set speed records i would gear it down as well.
WHITE Knuckle Racing
after no fear comes...OH $H!T
when in doubt throtle out!
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March 19th 2008 at 8:17 PM
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Stevemullin
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Quote originally posted by driftpounder
Your 500 should handle it, don't expect it to set a land speed record after though. I would get the VES top end and an AAEN pipe for it, will waken' it up alot.
do u think that after the mods with the exhaust valves and the gearing that my 500 would have enough power to pull a weeely
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March 19th 2008 at 9:32 PM
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Sledhead89
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83 Posts 
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Member Since: March 17th 2008
Location: Spanish, ON
Current Sled: sold );
2008-2009 Miles: 1300
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Those sleds can easily pull wheely's stock get sum studs play with your suspension and she should stand up no problems..
Sx is gone.....
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March 20th 2008 at 8:06 AM
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MuscleD
It doesnt matter where you are in life, its who you have beside you.
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813 Posts 
Group: Members
Member Since: February 2nd 2008
Location: Mankato, Minnesota, USA
Current Sled: 1999 polaris xc 500
2008-2009 Miles: 25
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no his doesnt have ves. i have heard ves will give a snowmobile 15% more horse power. I know the 99 xc 500 is capable of around 100. they are very fast and i can only imagine what it would be like with ves.
fool
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March 20th 2008 at 8:45 AM
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bushwacker
Junior Member
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347 Posts
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Member Since: January 2nd 2008
Location: Deer River, Mn, USA
Current Sled: 2000 XC 700 SP
2008-2009 Miles: 600
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I owned a 2000 xc500 non EV. This sled stock puts out about mid 90's horsepower. Mid range pulls as good as most any 600, top end was also very good. My complaint was the bog on bottom end and they don't seem to produce power till you reach about 5,100 rpm. The VES top end should cure this nicely but the cost will be high. I was able to improve range of power band some by installing a boost bottle and boyseen reeds (V force reeds are better but more expensive) power band still didn't hit till about 4,700 to 4,800 though so I never cured it completely. I finally traded it off on a 700 xc. The only other caution I have is don't hold the throttle open too long in warm weather conditions as this engine didn't seem to cool that well and I had it sieze several times. cylinders are cast (not nicasil plated)and very serviceable though).
Good Luck
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March 20th 2008 at 12:40 PM
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xcindy500
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291 Posts
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Member Since: February 6th 2007
Location: Carman, Manitoba, Canada
Current Sled: 99 SKS 700
2008-2009 Miles: 999.9
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^^^^ mine does seem to have a slight bog on bottom end but not as bad as yours seems to be. anyways back on topic, if you really want more power you may aswell get a bigger engine. but if you want a little more to help move that 136" then a boost bottle will help if you dant have one already, i have one and my boots cracked this winter, so i took it off for a bit so i could keep riding. i really noticed it. clutcing will help out a lot to with accerleration, or what ever you want. i will hopfully be extending mine this summer and i am not worried about power from the 500.
good luck
1999 Polaris SKS 700 136"
Arctic FX Graphics
Powermadd bars
Powermadd hand guards
6" riser
PPP can
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March 20th 2008 at 7:44 PM
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xc600rmk
Friend of Fast
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Member Since: March 27th 2007
Location: Albion, NY, USA
Current Sled: 04 Pro-X 600,98XC600rmk
2008-2009 Miles: 1,700ish
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my sons xcr 440 has a 136 x 1" track and it still spins it alot. you should go with 1.25 luged track,that 500 has enuff to pull a track like that.
*04 Pro-X 600-A few mods,and go-fast parts.......136" x 1.25" this winter
*98 XC600 and some RMK add ons-The sons ride this winter
*98 XCR440 and some SKS add ons------SOLD :-(
*83 Polaris Star 250
*90 Yamaha Exciter---Wanna trade even up for an Indy Trail,Or any Indy of equal Value!!
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March 20th 2008 at 9:42 PM
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FireCat59
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Location: Camden, NY, USA
Current Sled: 05 F7 SP
2008-2009 Miles: 800
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Boost bottles do little to nothing for performance, all they do is equalize the pressure of the carbs, nothing more. Waste of money IMO. Your best bet is to clutch the 500 for the 136, drop a tooth or two as well. I am not good at clutching so I do not know the specifics.
"Who cares about triples, I could hit myself in the face with a frying pan and feel just as good as riding 10 miles on xtra 10." hahaha
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March 20th 2008 at 10:35 PM
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proiceracer
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put a y pipe from a 99 xc 600 on it
you wont notice much when the pipe is cold but once it heats up you will notice a big differents
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March 20th 2008 at 10:41 PM
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bushwacker
Junior Member
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347 Posts
Group: Members
Member Since: January 2nd 2008
Location: Deer River, Mn, USA
Current Sled: 2000 XC 700 SP
2008-2009 Miles: 600
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Firecat59 I disagree. A boost bottle on a non VES domestic twin is almost a must as far as I'm concerned. They are the bigest single improvement you can make for under $50. For an Exhaust Valve engine the improvement is probably less.
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March 21st 2008 at 11:28 AM
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polarispimpman500
#1 BRP Fan... Join The Club
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Location: Orillia, ON, Canada
Current Sled: 2001 xc800sp
2008-2009 Miles: 120
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you would be wasting your money on a pipe as money can be spent elsewhere for a better cause. jet, clutch and gear that sled while adding the 136 1.5 and hold on. these little sled have some good pull to them up to about 60-70mph
Before I continue, if I don't keep this sled for the whole season, I promise to never sign on to Snowmobile Fanatics again.
BRP......
2001 xc 800 sp | 1998 XCR 600 | 1999 Ski-doo formula 670
- SLP air horn | - 192 woodys | - 30 miles
- 5 inch riser | - 9000miles | - 2 motors
- 192 woodys | - Tripple Pipes | - and alot of head aches
- 6400miles | -Gas and Go | - 10000km
- CLUTCHED
- 128 polaris track
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March 21st 2008 at 12:55 PM
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sledneck68
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165 Posts
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Member Since: December 23rd 2006
Location: Bonduel, WI, USA
Current Sled: 2001 ZR 500
2008-2009 Miles: 2650
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Allong with the power valves you will not only notice a power increase but you gass mialage will go way up 
'01 Zr 500
1.25 Ripsaw
Mbrp Can
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March 22nd 2008 at 12:57 AM
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FireCat59
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Member Since: February 3rd 2007
Location: Camden, NY, USA
Current Sled: 05 F7 SP
2008-2009 Miles: 800
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Quote originally posted by bushwacker
Firecat59 I disagree. A boost bottle on a non VES domestic twin is almost a must as far as I'm concerned. They are the bigest single improvement you can make for under $50. For an Exhaust Valve engine the improvement is probably less.
Maybe, my buddy that has a boost bottle on his sled has a 600 RMK, VES and he didn't notice any difference. 
"Who cares about triples, I could hit myself in the face with a frying pan and feel just as good as riding 10 miles on xtra 10." hahaha
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March 24th 2008 at 8:56 PM
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TNT123
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440 Posts
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Member Since: August 20th 2007
Location: Johnstown, NY, USA
Current Sled: 97 indy 500/95 zr 580 cat
2008-2009 Miles: 75?
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can i get the ves top end for my 97 indy 500? i might have a crack somewhere in my cylinder and might have to get it replaced, if i do, i would like to get the ves top end. although im not sure how it works. can someone inform me please?
1997 Indy 500 L/C, motor just rebuilt: runs good. lost the engine mount while riding and its not in the sled!
1995 ZR 580EFI: just needs the speedometer cable
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March 24th 2008 at 9:23 PM
[ Modified March 24th 2008 at 9:27 PM
]
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driftpounder
Canadian Psycho
driftpounder snow is coming end of the week now.
Updated Yesterday at 12:41 PM
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1506 Posts
Group: Members
Member Since: April 26th 2006
Location: Porcupine Plain/Saskatoon, Saskatchewan, Canada
Current Sled: 2006 Compfusion
2008-2009 Miles: 502
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^^^^^^No that topend won't fit on your sled, you have a fugi 500 engine. the VES motors are the liberty, or domestic twin as they were called when they first came out, has a different case then yours. I don't believe they will fit.
As for how it works the exhaust ports on a non VES are a certain height for best use at all RPM ranges. When you change over to the exhaust valve cylinder the ports are taller making the most top end power, but the valve changes the height of the port as it opens. They open by using the exhaust gases and pressure. As it opens the port height is always at the best spot to make the most power. This curves the power band better and uses the engines usable power the best.
Quote Stevemullin wrote
Last Wednesday at 8:17 PM
Quote originally posted by driftpounder
Your 500 should handle it, don't expect it to set a land speed record after though. I would get the VES top end and an AAEN pipe for it, will waken' it up alot.
do u think that after the mods with the exhaust valves and the gearing that my 500 would have enough power to pull a weeely It should already be able to, but you may need to losen your limiter straps on the front of the suspenion, this will allow for the skid to flex more at the front and the skis will lift easier. With those mods it should have more then enough to lift them.
Quote polarispimpman500 wrote
Friday at 11:28 AM
you would be wasting your money on a pipe as money can be spent elsewhere for a better cause. jet, clutch and gear that sled while adding the 136 1.5 and hold on. these little sled have some good pull to them up to about 60-70mph
If he pipes it, he should see around 6 hp gain and with a clutch kit and a drop a tooth in his gearing should have a wild 500. I wouldn't play to much with the jetting, unless piping it, you might get something that run like no other but is on the edge of melt down all the time and isn't really all that usable.
As for a Boost bottle, I'm still on the fence, some sleds it does wonders to, and others are still dogs with it. I would suggest if you thinking about getting one find someone that has a used one for sale and ask if you can try it and see what happens. On a VES motor don't bother with the boost bottle I haven't seen one that made a difference.
'06 Fusion 700 0 miles just bought it
High Flow SLP Air Box
Hot Air Elimination Kit
MBRP
136/15/1.5 Ripsaw tracks usa kit
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March 24th 2008 at 9:56 PM
[ Modified March 24th 2008 at 10:03 PM
]
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driftpounder
Canadian Psycho
driftpounder snow is coming end of the week now.
Updated Yesterday at 12:41 PM
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1506 Posts
Group: Members
Member Since: April 26th 2006
Location: Porcupine Plain/Saskatoon, Saskatchewan, Canada
Current Sled: 2006 Compfusion
2008-2009 Miles: 502
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here is a video of the one I did for my cousin last summer.
'07 XCSP 500 ( estimated stock hp = 105), most 500's came stock with VES after '00.
this thing only has:
MBRP can, which is claimed 2 ponys gain
SLP Airhorn claimed 2-4 ponys
some small clutching (ie primary spring)
suspenion tuning (limiter straps one size longer, springs turned down two sizes)
And a ton of stickers which should give it 150 hp if they don't keep falling, joking.
It is will work over most 600 and give a 700 a run for it's money. I think your long track kit will be pulled just fine with this stuff.
'06 Fusion 700 0 miles just bought it
High Flow SLP Air Box
Hot Air Elimination Kit
MBRP
136/15/1.5 Ripsaw tracks usa kit
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March 29th 2008 at 3:43 AM
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94zr700kid
New Member
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86 Posts
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Member Since: December 6th 2007
Location: vacouver, WA, USA
Current Sled: '96 RMK 500 EFI -136"
2008-2009 Miles: 1000+
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my '96 500 came with a 136" and i was thinking of going to a 144" after riding in deep pow yesterday. so, i would go with a 144" and do some clutching and gearing
1st sled-> 1985 polaris 250
2nd sled-> 1994 polaris indy 440
3rd sled-> 1994 Arctic Cat ZR700
now -----> 1996 POLARIS RMK 500EFI
o.O yam blaster alottamods
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March 30th 2008 at 12:02 AM
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Stevemullin
Starting Member
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6 Posts
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Member Since: March 19th 2008
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Quote originally posted by 94zr700kid
my '96 500 came with a 136" and i was thinking of going to a 144" after riding in deep pow yesterday. so, i would go with a 144" and do some clutching and gearing
Are u sure a 500 could handle 144. Seems a like it might be a little under powered
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March 30th 2008 at 10:04 AM
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FireCat59
Senior Member
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3113 Posts
Group: Members
Member Since: February 3rd 2007
Location: Camden, NY, USA
Current Sled: 05 F7 SP
2008-2009 Miles: 800
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With your 500, it will probably have a top speed of 70 after putting the 144 on it. You will have to clutch it and gear it so it will compliment the 144 track. You dont have to clutch it but if you don't it will be a dog.IMO
Droft pounder, that can did nothing for that sled. Just made it louder(which I like!) but the air horn could have made a difference. I do not know because I havnt done anything to a sled in the area of intake other than gut my airbox. Those ves 500's are fast. I thought I was racing a 600 one day when I came to school. Turns out both of my buddies have the same sled(2003 xc sp's) but one has the 5 and the other the 6. That 500 hung with my great until 60 but I was very impressed with that sled.
"Who cares about triples, I could hit myself in the face with a frying pan and feel just as good as riding 10 miles on xtra 10." hahaha
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March 30th 2008 at 10:28 AM
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TBomb
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153 Posts
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Location: Holstein, Ont., Canada
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This is my 1999 XC SP 500, it is stretched to a 136 by 1.25, and i love it. I dropped the gears to from stock to 22 top and 41 bottom and man it gets up and goes, but i do have pipes and clutching and motor work and it is VES top end (which i suggest, and is a good power investment) Like what was said befor you will not set speed records but you will have lots of fun ditch banging and rippin up trails.
Hope this helps your choice.
Tom
Sled goes like a cut cat
When I sled I like to make a line that no one can follow or if they see it they say " What was that guy thinking"
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