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Last Login: 3/5/2007 10:44:31 AM
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| I own 2 AC 2-up sleds for my family and have become a fan. One of the sled is a 2003 4-stroke non-turbo. That sled is a dog but fine for my wife and little kids (quiet and doesn't stink which makes my wife happy). I am looking to replace the second sled (2stk panther) but am concerned about the reliability of the Turbo placed on the engine. I presume the straight 4-stroke will run forever with good maintenance. But the addition of a turbo charger concerns me. Further, Yamaha has completed their line of 4-strokes. The yam 2-up generates 120hp with its 4-stk engine. Is it time to change brands for the reliability of a Yamaha motor?
kevin cook |
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Last Login: 3/5/2007 10:44:31 AM
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| Kevin,
What can you tell me about the 4 stroke 660 without turbo? I have found a 2002 model for sale with only 20 miles. I am seriously considering a purchase. How is the performance as compare to other sleds? Did you have any mechanical problems or anything you don't like about the sled since you have owned it for a while? Please email me at robseig@nalu.net Thanks
Rob Seig |
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Last Login: 3/5/2007 10:44:31 AM
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| Kevin, i have a 2002 and 2003 AC four strokes, I can tell that the 2002 four stroke touring goes 62 mph wide open. The 2003 did the same because the clutches werent set up right-they matched the spec in the factory manual but the motor would only run 6200 rpm and 60mph. I found the stock belt (013) to long and switched to a (021) and then tightened the secondary spring one notch. Also required was adding a couple of shims to the secondary to keep the belt from being to tight. All these changes got the top speed up to around 72mph, if your tach doesnt climb up to approx 7000rpm after 40 mph then your sled isnt set up right.
eric
Eric Jenkins |
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| I think with the turbo it will still be very reliable, I have heard this engine was originally produced for a car in europe, apparently they could tweak this engine to put about a 145 hp, that engine has run easily for 150,000-200,000km's in European and Japanese mini-cars for years without any issues whatsoever. Turbos generally have a bad rep, but that is often due to the people implementing them and/or the knowledge they have.
That Turbo 660 will last for a very, very long time, even under intermittent snowmobile load and stress levels.
Swamper |
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| Kevin,I bought a used turbo touring this year,We've put 700 miles on it this season(jan-now)a couple of days we ran 140 plus miles-this machine rocks!!The reason I like it is because of the turbo.The biggest killer of turbos is heat-the way AC has this put together it seems like there is more than enough cooling and air flow to keep things cool under the hood.I have owned numerous turbocharged cars and have never had a turbo related failure,so the turbo was a great fit for me.This sled is real quick for 640 pounds!It will surprise alot of so called quick machines-launches good but wait till you hit the boost-yeehaw!!My wife loves the ride, it remind her of a king/queen seat from our motorcycle-very comfortable.We looked at all the 2-up machines for 3-4 months before we bought this one.I really liked the Yamaha(being a 4-stroke)but when I sat on it my hips started to cramp and my feet didn't fit well under the cowl(I'm 6'4 and 230)and the seat wasn't stepped so my wife would spend the entire ride staring at the middle of my back.Hope this helps...Bill
BILL mitchell |
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Last Login: 3/5/2007 10:44:31 AM
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| | AC went through a year of testing turbos before they put the one on it that they did. This combo is actually more reliable than Yamaha's engine. |
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