ATV Torture Forums banner
1 - 14 of 14 Posts

· Registered
Joined
·
84 Posts
Discussion Starter · #1 ·
Well, I followed the directions Buster laid out and in no time at all, I was done. This was my first time ever seeing such a set up. I come from the sra world of honda so wow, what a change. But if you take your time it's a snap. I actually own Buster's old Grizzly. He had all light weights in when I purchased it. So after putting the 30" silverbacks on, I went looking for the right torq range. This was my first change. I went from 4 (14g) and 4 (15g) wieghts to 4 kodiac 450 weights (14g) and 4 660 weights (18g). I think this was a good move. I feel like I've gained some torq. It's not significant, but she will lift the front end with no problem in L. And trust me these 30" silverbacks are quite heavy! I'm going to play in the mud some before I make another change, I want to see it under a load. I'll let ya know how the next ride goes and then go from there.
 

· The Sheriff
Joined
·
1,822 Posts
I told ya the clutch weight swap was a breeze didn't I.

Good to hear you found a better setup for your tires than the way I had it.

I also figured that someone else would chime in suggesting the spring as I had suggested previously. I honestly think with tires that big, you're missing potential power by not doing the spring. Did you ever call Dalton and get there input on what color spring to use?

Buster
 

· Registered
Joined
·
84 Posts
Discussion Starter · #6 ·
tires fit

Yes the tire fit is tight, but no rub problems. I didn't want a lift, so I gave it a shot and got lucky I guess. I did trim the black plastic on the rear just a little. But all is well. I will have to call dalton and see about the spring. I have been a little frustrated, a friend of mine has a stock 700 that runs like its shootin nos or something. I want to figure this out. He is running a slightly smaller tire than me, but I mean come on, he smokes me in a drag race. I do real well in the mud tho. We both do!
 

· THE ENFORCER
Joined
·
2,036 Posts
Yes the tire fit is tight, but no rub problems. I didn't want a lift, so I gave it a shot and got lucky I guess. I did trim the black plastic on the rear just a little. But all is well. I will have to call dalton and see about the spring. I have been a little frustrated, a friend of mine has a stock 700 that runs like its shootin nos or something. I want to figure this out. He is running a slightly smaller tire than me, but I mean come on, he smokes me in a drag race. I do real well in the mud tho. We both do!
I can't pass judgement without knowing what the other guy is running, but those weights are going to cost you top speed performance. They tires aren't light. If you look in my garage and notice my Grizz 660 had 14" Maxxis Big Horns with ITP ss112s. Dude, that ate my bottom end up. I know, two different beasts all together, but my point is the 14" setup is noticably heavier than the 12" setup. My logic when buying was that their was more metal but less tire. This myth....busted. 14" = Heavy. (Look real good though.)
 

· Registered
Joined
·
84 Posts
Discussion Starter · #8 ·
14" = heavy

Battlegun, I have to agree, I'm running 14"s and he's running a 12" set up. I think that could have a bit to do with it. I do know my tires are heavier than most other brands, so I guess that's prob some of it. We will see soon, he is getting a HL clutch kit and that will tell some about the giddy up. I spoke with HL just to see if they had any opinion about my set up vs theirs. They said either set up will do the same thing. Also , as far an upgraded sping, they said the Grizzly 700s have a good enough sping not to worry about buying anything along those lines. I will check with Dalton just to get another opinion. I'll keep ya posted.
 

· The Sheriff
Joined
·
1,822 Posts
I disagree with a couple of things here.

First, Nate, I think that going with a 14" wheel will actually lighten the load of a 30" tire simply because you're reducing the amount of rubber in the sidewall and replacing it with aluminum which is lighter. Granted, the 30 inch tire isn't available (from what I think Jim told me) in a 12" wheel so that's kind of a moot point. however, I think if you compare say a 27x14 tire wheel setup to a 27x12 assuming a 27x14 is available, you'll find the 14" setup to weigh less but I could be wrong. However, comapring rubber to aluminum, a bigger wheel has got to be lighter since it reduces the amount of rubber.

Now, on to the spring Jim. I call the BS flag on what HL told you. From what everyone has told me on Grizzlys and Can-Ams, if you have a 27" or bigger tire, you better do a spring. But hey, maybe all of those people that do it are wrong. I will say most of them say that it is what Dalton TOLD them they needed to do. I think Dalton's site even says that.

Just my thoughts.

B
 

· The Sheriff
Joined
·
1,822 Posts
Now, I would also like to add something else to this discussion to Jim. If your friend is running a 12" wheel, I don't know what tire, but if a 30" is NOT available in a 12" that implies he's running a smaller tire. Dropping down to a smaller diameter tire is gonna change gearing for one so he SHOULD beat you just from a gearing standpoint. On top of that, add the fact that his are lighter since they're smaller which will help him even more. So you'll have to regain your out-of-the-hole power back with the clutch at this point I think.

What size tire is he running? It would be interesting to know what tires he is running and get manufacturer specs on your tires and his as far as weight is concerned. I can't find published weights for the 30" silverbacks from a quick search though.

B
 

· Registered
Joined
·
84 Posts
Discussion Starter · #11 ·
Tire weights

Glad to see you back B. If I remember correctly my Sbacks weigh either 37 or 39 lbs. Not certian, but it is one of the two. My buddy is rinning a 28 x 12 x 12 rear mudzilla. and 28x10x12 front. Now I know there is a wieght difference in the two, but as far as the gear ratio diff. Here is the thing, this clown has these tires over inflated to the point that the tires are almost the same height as my 30s. Thats why I don't think the ratio is much of an issue. I know the weight will be tho. Now, as I learn about all this stuff, I'm realizing more that the tire size and clutch weight thing matter quite a bit. So I'm going to be very interested to see how his latest adds have changed his machine. He now is running 29.5 outlaws and has a highlifter clutch kit. We shall see. Don't get me wrong here. I'm not looking for speed at all. I was just surprised at the amount of difference there was in our 2 rigs. As long as my rig pulls through the mud like she has, I will be happy. I just want to get as close to the best of both world as possible. :rockon:

Buster, here is a direct quote from Dalton's web site. In ref to the spring.

The new Yamaha Grizzly 700 4x4 is a new improved version of its 660cc predecessor. Although the 686cc engine is not substantially larger or more powerful, it certainly has improved torque, throttle response and smoothness as a result of the electronic fuel injection (EFI). In stock form, the factory clutch calibration is fine for the supplied 25" tires, and no recalibration is necessary for the stock tires. Many consumers prefer the ground clearance and traction advantage of larger, more aggressive mud tires. Most, however, are not prepared for the amount of performance lost by installing bigger tires. Installing larger, heavier tires on this model does have a drastic negative effect on acceleration performance. Although an ATV with oversized tires can never be as quick as one with light weight stock tires, this kit can help recover some of the losses and breath some life back into your Grizzly. On the previous 660 models we have always included a new heavier secondary spring for the rear pulley. The new 700 model, however, comes from the factory with its own new heavier secondary spring that has proven satisfactory.
 

· Registered
Joined
·
84 Posts
Discussion Starter · #12 ·
tire weights

I just found the wieght chart i looked at last time. Here's the listed weights according to this place.

Silverbacks 30x11x14 = 43lbs ea. !!!!!

Mudzilla 28x10x12 = 35.6 lbs ea.
Mudzilla 28x12x12 = 41.6 lbs ea.

So according to this chart, I'm haulin about 18 to 20 lbs more tire weight. So there ya have it.
 

· THE ENFORCER
Joined
·
2,036 Posts
Well Buster, your free to disagree. I had the same thought process. But my 26x12 (ITP108s) Mud Bugs had less effect than my 26X14 (ITP112s) Big Horns. That is to say, I could not tell a difference with the Mud Bugs but could feel a difference with the Big Horns. I don't remember what weighs more according to the factory.
 

· Registered
Joined
·
4 Posts
let see if can shead some light.. on the secondary spring issue, if you were to get the white sring from EPI, its like $20.. that is the strongest spring i know avalible.. now with this white spring it will pinch the belt harder an giving you a harder bit on the take off an reducing belt slippage..

now for the weights.. when you start changing weights around from the stock weights, you will lose some top end no matter what.. an adding bigger tires will also take away your top end.. the clutch kits or designed to turn bigger tires.. they or not designed for top speed..
for an example= i have a HL clutch kit with 29.5 outlaws right.. well the kit came with a yellow spring, i put a white spring in it.. i also changed the weights.. i have 4 450 weights an 4 700 weights an my top speed, from what the speedo reads is 58.. now that aint all that fast, but put me in the mudd an i spin the crap out of the 29.5.. i swapped tire with a buddy that has 31's outlaws an i spin the crap out of those as well.. i can even spin them on black top.. but with just the weight i wouldnt be able to spin the crap out of my 29.5 with out the white spring.. with a little body english, i can pull the front end up a little in high

so real what im saying is the hevier the weights the more topend you will have.. the lighter they or, the more bottom end you will have.. so if you run 4 light weights an 4 heavy weights like im doing then you get a little of both worlds..

an when it comes to the tires, well the heavier they or the more power you need to get them turning an keep them turning.. an 30'' silverback only come in a 14'' rim.. an i know that the stock grizzly 12'' rims or lighter then a 12'' aluminum rim..

stall springs only let your motor reve up highier before the clutch engages.. thats so your motor is reved up a little more then normal so that when the clutch does engage you will have the power to turn the big tires in the mud from a stop position.. this is just my 2 cents tho.. hope some of these helps you understand a some things on the clutching an helps you out..
 
1 - 14 of 14 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top