MXZ Race Spindles on GEN4 Summit

GreyGhost

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I don’t know if anyone else is bored but this whole covid thing has me doing stupid stuff. Ordered some race spindles and thought I would the differences between the two. Bottom bushings fit from spindle to spindle, upper mounting point for the upper ball joint is about an 1” higher, the tie rod end is 1/2” lower, and the bottom mount is about a 1 3/4” lower. Ball joints are the same and fit right in.
 

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This is neat and all. I do enjoy seeing the comparison in different parts, but what are you hoping to accomplish by doing this?
 

GreyGhost

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This is neat and all. I do enjoy seeing the comparison in different parts, but what are you hoping to accomplish by doing this?

Like Rene G said, Wanted to lift the chassis up and out of the snow, doing so will decrease stability and hopefully make it easier to tip over. Also the steering geometry is better, moves the skis a 1” ahead, and also puts more pressure on the front of the ski. Kind of like the experts updated rubber does
 

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Finally got both on. Definitely wouldn’t do this if you have the stick rear suspension as it’ll put an additional load on your rear shock.
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Cool interesting, always thought the cat guys were doing it cause there sleds sat low. Compared to the axy and t3, and G4 chassis
 

GreyGhost

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Cool interesting, always thought the cat guys were doing it cause there sleds sat low. Compared to the axy and t3, and G4 chassis

I agree. My buddy’s cat is surprisingly low compared to my GEN4 so having such huge spindles but my XM is about the same. In total it raised it 2” and moved the skis a 1” forward but kept the width the same. I wanted to do this because it’s better suspension geometry and should hopefully make it easier to side hill, go through snow, carve, and should handle better all together.
 

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I put the elevate in my Alpha because they sit so low but that will really get the G4 up high. Any plans to drop the skid to take out some ski pressure and help keep it from wheely-ing?
 

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will changing the height of the top A arm affect its position in full compression? I remember the design was to get more stable and maybe wider(?) at full compression compared to RAS 2. I like this thread! nice to see a guy trying new things and showing us. niners thread is another one, lets us see the mods.
 

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I put the elevate in my Alpha because they sit so low but that will really get the G4 up high. Any plans to drop the skid to take out some ski pressure and help keep it from wheely-ing?

Yes it was in the works before I decided to do this. I’ve already made a bracket for a fox shock to help eliminate the factory sag and am working on the lower part of the scissor but right now it says a bit
 

GreyGhost

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will changing the height of the top A arm affect its position in full compression? I remember the design was to get more stable and maybe wider(?) at full compression compared to RAS 2. I like this thread! nice to see a guy trying new things and showing us. niners thread is another one, lets us see the mods.

Yes and no. I’ve cycled the suspension and has a little bit of positive camber but nothing that you would notice in deep snow. It’s actually still 36” but you can’t. But yes you are right on the race sleds that’s why they went with that spindle design. I did this only to improve the suspension Ackerman. On the stock spindles the ski mounting point isn’t inline with the ball joints which I think makes the sled less predictable in certain situations. It’s like mounting the wheel of your car a inch in front of the turning point. Sure it would increase the full lock but would make it feel touchy. I’m looking forward to trying it out and seeing if it actually improves the wandering
 

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You need to find some snow and try it out ... if it works we can all doo the change over this summer
 

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so now you move the skid down and back to get the angle of attack a little less?
 

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so now you move the skid down and back to get the angle of attack a little less?

No I won’t be moving it back just increasing the rear height. The attack angle is about the same as stock if I do this. But I’ll also be swapping to a 162” track with smaller drivers so it might improve some but I’m not sure
 

Woodsie1984

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No I won’t be moving it back just increasing the rear height. The attack angle is about the same as stock if I do this. But I’ll also be swapping to a 162” track with smaller drivers so it might improve some but I’m not sure

how did these work out ? Any better for keeping a side hill ?
 
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