1xr
Expert
The 23 gear is all the hype. I have a23, 21, and a 22 as well as the shorter chain, and have played with it some.
This time of the year the snow is soft and no way will the sled reach the top end of a 23 gear. I was woundering for the the guys that have tried the lower no.s have noticed any loss of pull from say 60 mph to 100 or so. Or might it go a little faster in the loose snow with a little lower gear. I always assumed the lower gear ratio will be quicker in the bottom end.
This time of the year the snow is soft and no way will the sled reach the top end of a 23 gear. I was woundering for the the guys that have tried the lower no.s have noticed any loss of pull from say 60 mph to 100 or so. Or might it go a little faster in the loose snow with a little lower gear. I always assumed the lower gear ratio will be quicker in the bottom end.
LazyBastard
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It'll be stronger on the bottom, longer belt life, same on the top end until you run out of clutch, then the engine might overrev. On 06+, 22/38 will give you a theoretical top speed of 111 mph at 11000 rpm using stock 9t drivers. With overdrive, thats up to at least 117. You might initially lose a bit in the mid and top end, you can get it back by adjusting your clutching.
welterracer
TY 4 Stroke God
1xr said:
IMO.. a 21 or 22 TOP gear would be too low for the amount of HP the apex has.. ( you will have a tough time getting traction from a dead stop)
The 23T top gear will work the best in perfect conditons on snow or bare ice..
hondo
VIP Member
Your are right LB,
My brother, and I have been trying a few things. What we have found that a 22 works best on an 06 Attak.
There is your "out of the hole, arm stretching low end, and middle". Now you have to find a top end. This is done by over driving the clutch.
Shave the bottom of the primary, and secondary sheeves to create an over drive. Don't have the numbers of the top of my head.
Another course of action is to buy an overdrive clutch.
Here is the kicker:
Also use a Dayco belt. Dayco belts are a tad wider, and is made of a softer compound than a Yamaha belt. My brother changes belts just before he plays on the lake etc...
Your mph numbers are pretty accurate as well.
This Attak will pull all the way through. 125 on the speedo (dream meter) is the last we have seen, but have run out of room to stop.
So the sled is actually traveling about 111 ish maybe 112 mph.
My brother says there is more. We haven't been able to run any further right now, because of room, plus the conditions are terrible.
So having said all this, we are hoping to see about 115 - 117 actual mph in the future.
My brother still owns his 05 MachZ, with 07 mapping. This Attak will smoke this MachZ, from bottom to top, inside and out. Not even close.
Short of getting into the big bucks, it's an inexpensive way to get the sled to run more to it's potential.
Hope this helps!
Have fun, but be safe!
My brother, and I have been trying a few things. What we have found that a 22 works best on an 06 Attak.
There is your "out of the hole, arm stretching low end, and middle". Now you have to find a top end. This is done by over driving the clutch.
Shave the bottom of the primary, and secondary sheeves to create an over drive. Don't have the numbers of the top of my head.
Another course of action is to buy an overdrive clutch.
Here is the kicker:
Also use a Dayco belt. Dayco belts are a tad wider, and is made of a softer compound than a Yamaha belt. My brother changes belts just before he plays on the lake etc...
Your mph numbers are pretty accurate as well.
This Attak will pull all the way through. 125 on the speedo (dream meter) is the last we have seen, but have run out of room to stop.
So the sled is actually traveling about 111 ish maybe 112 mph.
My brother says there is more. We haven't been able to run any further right now, because of room, plus the conditions are terrible.
So having said all this, we are hoping to see about 115 - 117 actual mph in the future.
My brother still owns his 05 MachZ, with 07 mapping. This Attak will smoke this MachZ, from bottom to top, inside and out. Not even close.
Short of getting into the big bucks, it's an inexpensive way to get the sled to run more to it's potential.
Hope this helps!
Have fun, but be safe!
The Attak might like the 22 because of the extra leverage afforded to the drivers to spin the added track weight.
On my Apex, I feel that the 22 would blow the track loose in all but the best conditions.
It already seems to do so with the 23.
My 2$
On my Apex, I feel that the 22 would blow the track loose in all but the best conditions.
It already seems to do so with the 23.
My 2$
hondo
VIP Member
Agree,
Hook up in what ever condition you are running is certainly a key variable.
23 is probably the best choice for a 121 inch track.
Hook up in what ever condition you are running is certainly a key variable.
23 is probably the best choice for a 121 inch track.
hondo
how many picks are you running?
how many picks are you running?
hondo
VIP Member
On Attak:
"Stud Boy" 1.375" carbide tipped - 180 studs total, 72 Double aluminum backers with .750" nuts, and 36 Singles.
Caution: The "Stud Boys" stud length are slightly longer than other brands. We had to remove the rear aluminum exhaust can guard because they were rubbing. This is the only place they were close.
3,100 miles are on these studs.
Hooks on both ice, and snow.
"Stud Boy" 1.375" carbide tipped - 180 studs total, 72 Double aluminum backers with .750" nuts, and 36 Singles.
Caution: The "Stud Boys" stud length are slightly longer than other brands. We had to remove the rear aluminum exhaust can guard because they were rubbing. This is the only place they were close.
3,100 miles are on these studs.
Hooks on both ice, and snow.
hondo,your saying there is a noticable differrence from the 23 to 22 maybe i'll try that next year
hondo
VIP Member
black700,
The answer is yes, but it's not just the 22 gear.
You will need to over drive the clutch so your sled will continue to pull at top end.
As discussed in the previous posts, hook up is also a key factor as well.
I also agree, there is difference between 121" and 136" tracks. (apples and oranges)
We have also tried the stock 23, and a 24 gear, in Attak.
For us, and our Attak, a 22 gear, and the clutch combination, coupled with a modest stud set up for both ice, and snow, is the answer.
Hope this helps.
The answer is yes, but it's not just the 22 gear.
You will need to over drive the clutch so your sled will continue to pull at top end.
As discussed in the previous posts, hook up is also a key factor as well.
I also agree, there is difference between 121" and 136" tracks. (apples and oranges)
We have also tried the stock 23, and a 24 gear, in Attak.
For us, and our Attak, a 22 gear, and the clutch combination, coupled with a modest stud set up for both ice, and snow, is the answer.
Hope this helps.
LazyBastard
TY 4 Stroke God
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I'm running 23/42 on my 03 (thats like 21/38). With the difference in the gear reduction to the PTO shaft, engine speed is held down by 300 RPM from 06+, giving me the space to drop gearing an extra point. 06+ would find its equivalent in 22/38, 23/40, or 24/42. I'm also running a speed sheave, a locked secondary, and a Gates belt. I was initially worried about the speed sheave due to scattered reports of them causing degraded performance and belt destruction, but in testing it, this is the FIRST year that I've EVER gotten through without blowing a belt. I usually kill at least 2 OEM 8DN's in a year.
