[cisco kid]

Per: Dale from Bikeman Performance http://www.prcforum.com/topic.asp?TOPIC_ID=326
(Alnash, You are correct the belt deflection should be 1 1/8. yes it will shift better once the belt is worn. But until then you are hard on your belt, motor mounts. crankshaft and clutches and your shift linkage. Yes eventually it will get better but until then you are putting undue stress on these components. If your car with automatic transmission shifted this hard you would be concerned right?)

Need input:
Do we not use the SP belt ?
Is this belt doing the damage to the motor mount ?
Why is Dustin from Polaris of High Point selling this to us ?

 

[ONZAMAN]

Is there anyone else saying these belts are different lengths besides Dale.
And if they are different lengths why are they behaving the same for everyone.

 

[JDJHNTR]

So............is Dale saying we should'nt use the SP belt on the 07'XP?

 

[scottedin]

what he means, I'm sure, is that anything mass produced is made to tolerances,+/- the theoretical perfect dimensions. This is no different than drive belts on snowmobiles, only thing is that a "close tolerance" belt is available from Polaris for about $5 more than the standard and does simplify clutch tuning. That SP belt SHOULD NOT be used on a Ranger, I had not thought about strain on the crank bearing but it sure makes sense. Damage to clutches, especially the primary is very likely in time, how much time I don't know. <blockquote id="quote"><font size="1" face="Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Commander

Is there anyone else saying these belts are different lengths besides Dale.
And if they are different lengths why are they behaving the same for everyone.
<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">

 

[carnivore]

I am not convinced this is an issue. We are talking about 1/4" less length. If you think about how these clutches work they are constantly pulling against each other, thats part of what keeps them tight, pulling into the V shape of the clutches. The new XP belt is wider, that must create more tenion on the belt also. Some members have reported that the only way they can get proper belt deflection is by using the SP belt.

 

[scottedin]

hard or impossible shifting while using the SP belt is caused by an intense dragging of the too short belt on the primary sheave faces at idle. Easier shifting after a few hours is only because a lot of belt material has worn off prematurely, the clutch is subjected to excessive heat and surely a build up of belt smear. Run the right belt and set the deflection to a point just shy of "creep." resistence while shifting gears at idle. I realize that my opinion means nothing, but a highly experienced Polaris wrench is telling the same thing. One more thing, the SP belt is SUPPOSED to be 1/4 " shorter but with the sloppy tolerances belts seem to be, some are very likely even shorter than that

 

[carnivore]

And how do you set the deflection on a stock XP clutch? I'll admit the belts have to wear a small amount to allow easy shifting, but I believe that wear is minimal.The stock belt doesn't even come close to performing as well as the Sp belt.

 

[scottedin]

we all know nothing can be done with the stock pile of junk, except to use it as a canoe anchor. Some are using the SP belt as a belt deflection adjustment when if better performance is what you are after the stock belt with a good replacement secondary with external BD adjustment would give better results with no adverse effects

 

[carnivore]

We can't all afford a $300 + aftermarket clutch. I know we all would like to do that, but sometimes you have to go the other route. I agree a good secondary is a great thing to have, heck, its on my wish list, but for now I'll stick with the SP belt that has served me well.

 

[scottedin]

agreed on the price thing, I have read plenty of comments on improved performance with the SP belt, I just believe eventually there will be a price to pay for the "cheap horsepower", Scotty

 

[cisco kid]

Well I will keep the sP belt on my Ranger, I will go with the higher amount of users tham one or two persons that are on the other side. ;-)

 

[dirtydale]

I just thought I would over a little advice on how to make your ranger last longer and improve the performance of it. As the saying goes pay now or pay later!

 

[cisco kid]

No problema, thanks Dave ;-)

 

[Drew1house]

I use the sp belt in my 06 XP... works great... I have more than 100 hours on it with no issues. I would also remind everyone that you can change the clutch springs out. If you put a stiffer spring in you are definatly making the clutch act different than it was set up for stock. Thus I am getting "Cheap" horspower with a stiffer spring. However the spring is a genuine Polaris part... works great... no fear of screwing up my 5 year extended warranty either... (I asked about it)

Drew

 

[Roadrunner]

Stock Belt works for me! The little extra kick you might get from any other belt is just not worth it for me.[] Now if I was drag racing all the time It might be an issue[] Since I am trail rider staying in the seat going up a rutted steep hill is bit more important to me![]