2010 VECTOR GT GEARING

[superb]

GEARING

I cannot figure out why a Vector should pull the same gear ratio as a Apex. I think I will gear my Vector down 1 tooth on top and see what happens. Hopefully it will not affect my fuel milage and give me more low end power without affecting the top end.

 

[pro116]

It can't.The only reson to gear up is if your looking for fuel milage.Gearing up the vector will make it slower accelerating lower the mph because it dosen't have the power to shift out the clutches with the tall gearing.

 

[Viper_Dave]

You guy's should REALLY pay attention to Pro116 post 's. I've seen his old Vector DUST higher Hp sleds many times. VERY knowledgeable guy with tons of clutching and gearing setups that are proven to work.

 

[TRUE BLUE SINCE 1980]

Than I must have clutch issues! Cause that motor is over reving and not gaining speed.

 

[Sled Dog]

If he is over reving why could he not go up 1 tooth to bring the rpm down to its sweet spot for top end. I agree it will be slower accelerating but if he is over reving the clutches must be fully open. I would try it and see what happens.

 

[superb]

GEARING

I agree with PRO116, and I have a question. My 2010 vector gt has 24-38 gearing. if I go to 23-38 can I use the same chain and will it make that much difference in fuel milage? Thank-you for sharing your setup with us.

 

[Sled Dog]

Yes you can use the same chain. You will gain better acceleration and lose some top end and a bit if any gas mileage.

 

[TRUE BLUE SINCE 1980]

Re: GEARING

I cannot figure out why a Vector should pull the same gear ratio as a Apex. I think I will gear my Vector down 1 tooth on top and see what happens. Hopefully it will not affect my fuel milage and give me more low end power without affecting the top end.

What is your top speed on the dream - meter with the 24-38. (on hard packed snow) , Do you know what the rpm's are at that speed?
The ltx vector has the 24-39 gears , does 104 and gets 100 american miles to a tank of gas (running Hard ) That is about 13 mph . Fuel milage is a tough issue !

 

[superb]

GEARING

I just bought this Vector and have not driven it yet. I also have a 2010 Apex gt which I installed a 2007 gas tank on (38 litres instead of 35 litres). I ride mostly Quebec trails, lots of cruising between 50mph and 80mph. On my Apex I can make 120miles to 135 miles to a tank depending on conditions. Sorry that's on a Canadian gallon. I ckecked part numbers and the bigger Apex tank will not fit on a 2010 vector. Where I ride I need to get a least 125 miles to a tank of fuel. I keep hearing that a Vector will get 20 miles to a gallon without a problem is this true?

 

[Stubbs]

With the style of riding you do the mileage will not be a factor. Gear it down. You will be running the belt deeper in the clutches, thus running closer to 1-1 ratio, thus more "efficient" and better performing at the same time. If an Apex cannot pull 24-38 with 150hp, gearing a Vec. the same is just silly. If you would like to drop your cruise RPM a couple hundred try a helix with a steeper initial angle. Here's a hint, lots of RX/Apex helixes around to try out.

 

[pro116]

If you are concerned about fuel milage i would go to 23-38 and you might have to put a heavier rivet in the tip of the weight.If you are not concerned about fuel milage go to 22-38.

On a stock air box and stock header 2010 and newer vector you do not want to be over 8250.Anything over you will be slower and just burning extra fuel.

A worn beldt will also cause an rpm increase.

SledDog no disrespect to you but the the only time you use gearing to adjust rpm is on a a non cv transmission like a motorcycle or car,etc.
Its very innefeciant and why slow down your sled by gearing it up and make it harder on beldts.The primary is the only way to do and you use the helix and sec spring to adjust how slow or fast it shifts.

 

[Sled Dog]

If you are concerned about fuel milage i would go to 23-38 and you might have to put a heavier rivet in the tip of the weight.If you are not concerned about fuel milage go to 22-38.

On a stock air box and stock header 2010 and newer vector you do not want to be over 8250.Anything over you will be slower and just burning extra fuel.

A worn beldt will also cause an rpm increase.

SledDog no disrespect to you but the the only time you use gearing to adjust rpm is on a a non cv transmission like a motorcycle or car,etc.
Its very innefeciant and why slow down your sled by gearing it up and make it harder on beldts.The primary is the only way to do and you use the helix and sec spring to adjust how slow or fast it shifts.

Non taken my friend but I am going by real world results with my own sled. I geared up from 21 /40 to 24 / 40 and I most definitly increased my top end without effecting my take off in fact it is better now as instead of spinning the track free it is grabbing traction better and getting better acceleration. It also brought my top end rpm down to 10200 where it was around 10500. Keep in mind this sled has my air box mod and was clutched by Turk. When the clutching was fine tuned I was still running the 10500 rpm and the increase in gearing brought it down to 10200. Now from a stand still the front end lifts off the ground just barely and accelleration is the best its ever been. I am not blowing belts at all either so I dont know this is what I have found. I do know that I am very happy with the sled the way it is now and I am beating sleds that were beating me prior.

 

[pro116]

Your sled is a whole diffrent ball game because it was a mtn sled and they are geared really low.
I have had mtn sleds too yes you need to gear them up for low elevation riding.

24/40 is common gearing for low altitude rx1's.

Your kind of missing the point though with theses short track sleds they already come with tall gearing.

 

[TRUE BLUE SINCE 1980]

Sooo, what do I do to take 200 rpm's off the top end? Add weight to the tips? How many grams?

 

[pro116]

add about 2 grams heavier rivets to the tips of the weights.