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Old 03-13-2008, 06:13 PM   #1
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Sled: 97 ZR580 EFI
07-08 Mileage: 20
06-07 Mileage: 250
ATV: 07 CRF450
2007 Mileage: na
2006 Mileage: na
what should be the top speed of the 97 efi models. mine wont go above 80 to 85 in a 500 yd field run with 5 or 6 in of snow
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Old 03-13-2008, 08:18 PM   #2
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Sled: '10 SnoPro 500/ '05 T660 ST/ '96 580 EFI
07-08 Mileage: 320
06-07 Mileage: 200
expect no more then 95 realy on gps. I was doing 93 on ice but my rpms were just at 7900RPM cause my clutching is off. A guy that I ride with has the same sled as me with a AAEN pipe, chip but the clutching is off and he does arround 90-95 depending on the day. If you get it over 100 its doing good. 80-85 could probly be better try to get a longer run going.
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2010 AC SnoPro 500 - 1.75" Backcountry Track, 9t Super Sprockets
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Old 03-13-2008, 08:51 PM   #3
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Sled: Pantera 1000,02TCat,98TCat,T660TT
10-11 Mileage:
09-10 Mileage: 1425
08-09 Mileage: 2480
07-08 Mileage: 950
06-07 Mileage: 1400
Back in the day I had one of those all stock other than a black magic clutch kit and regularly competed in radar runs keeping in mind that the days condition means everything and most runs were on cleared lakes the best run for mine was 104.6 mph on ice with a skiff of snow no wind.The one thing on that year of zr to check is the secondary clutch it was a one off polaris copy and the buttons or slides are inside the secondary out of sight and a complete disasembly is the only way to check there condition.That run I forgot to mention was a long pull 1500 feet or more.T.I.R



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Old 03-13-2008, 09:00 PM   #4
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Sled: 2 1978arctic cat jags, 1995 ZR 580
07-08 Mileage: 182
06-07 Mileage: none
ATV: none
2007 Mileage: none
2006 Mileage: none
On the gauge on the sled I have my 95 ZR 580 doing 90 on a seasonal road.
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