35/39 Dalton Helix

[Fleecer]

Guys, I knew the 35/39 would work for everyone, stock and aftermarket stages

After trying it, I couldn't believe it myself and with all the comments and pm's, I was like "wish they would listen".

Proof is in the pudding

Nos-Pro, is this 35/39 a true progressive helix? Or is it hypershift, step, compound??

Thanks

 

[NOS-PRO]

Nos-Pro, is this 35/39 a true progressive helix? Or is it hypershift, step, compound??

Thanks

This should be a progressive helix

 

[Beerman]

This should be a progressive helix

NOS or Shagman, I was going to PM you but thought your input would be better in public where it might help others. If you see my 2 posts a couple back . . . I'm dropping RPM with both 3-3 and 6-1 and interested in your thoughts on how I can correct it. It held 8900 perfectly with the Daltons set up for Ben's EcoTrail tune. I chalked it up to crappy conditions, but am not sure. It managed a best of 119 on GPS wrapped at 3-3 only revving to 8400. Wrapped to 6-1 I could get it to 8650 but after 1000' it started dropping. Thanks!

 

[Kevin]

will the Dalton helix need shimmed or is the spring pocket deeper?

 

[shagman]

NOS or Shagman, I was going to PM you but thought your input would be better in public where it might help others. If you see my 2 posts a couple back . . . I'm dropping RPM with both 3-3 and 6-1 and interested in your thoughts on how I can correct it. It held 8900 perfectly with the Daltons set up for Ben's EcoTrail tune. I chalked it up to crappy conditions, but am not sure. It managed a best of 119 on GPS wrapped at 3-3 only revving to 8400. Wrapped to 6-1 I could get it to 8650 but after 1000' it started dropping. Thanks!

List all your mod so I can answer you. What weights and how their setup etc.


Sent from my iPhone using Tapatalk

 

[Beerman]

List all your mod so I can answer you. What weights and how their setup etc.

RTX
TD EcoTrail (250 hp @ 12.7 psi)
SuperQuiet Muffler
Dalton QAY-70 set to 73.9 (set up by TD)
Dalton 35/39 shimmed
Stock primary and secondary spring
TPI belt adjuster
8JP
Big wheel kit
Camso 1.22" IceRipper track (Ripsaw variant)
Stock gears (for now - going to 22 top)

Prior to the 35/39 helix it revved and held right at 8900 on a long pull.

 

[Beerman]

RTX
TD EcoTrail (250 hp @ 12.7 psi)
SuperQuiet Muffler
Dalton QAY-70 set to 73.9 (set up by TD)
Dalton 35/39 shimmed
Stock primary and secondary spring
TPI belt adjuster
8JP
Big wheel kit
Camso 1.22" IceRipper track (Ripsaw variant)
Stock gears (for now - going to 22 top)

Prior to the 35/39 helix it revved and held right at 8900 on a long pull.

Just checked Dale's instructions, that weight with the 1" screw should be 74.3g. The 73.9g is on my scale.

 

[Kevin]

will the Dalton helix need shimmed or is the spring pocket deeper?

Thoughts?

 

[NOS-PRO]

NOS or Shagman, I was going to PM you but thought your input would be better in public where it might help others. If you see my 2 posts a couple back . . . I'm dropping RPM with both 3-3 and 6-1 and interested in your thoughts on how I can correct it. It held 8900 perfectly with the Daltons set up for Ben's EcoTrail tune. I chalked it up to crappy conditions, but am not sure. It managed a best of 119 on GPS wrapped at 3-3 only revving to 8400. Wrapped to 6-1 I could get it to 8650 but after 1000' it started dropping. Thanks!

RTX
TD EcoTrail (250 hp @ 12.7 psi)
SuperQuiet Muffler
Dalton QAY-70 set to 73.9 (set up by TD)
Dalton 35/39 shimmed
Stock primary and secondary spring
TPI belt adjuster
8JP
Big wheel kit
Camso 1.22" IceRipper track (Ripsaw variant)
Stock gears (for now - going to 22 top)

Prior to the 35/39 helix it revved and held right at 8900 on a long pull.

The problem with the QAY weights is that there is only 1 screw hole down the weight and the screw in the weight needs to be bottomed out....no matter what length screw you put in there. You need to find a lightweight "filler" or something that will take the space up deep in the hole and then you can put a shorter steel screw in to hold that "filler" in the weight.

Here are a couple things you can do. Did you get any aluminum screws with the kit or are they all steel? I would find a 3/4"aluminum screw like the steel one you have in the kit. Put the aluminum screw in first and then a shorter steel screw in to hold that. This takes the weight off of the tip to let you raise your top rpm's. You might even be able to use just the 3/4" aluminum.

 

[Beerman]

Thoughts?

Spring pocket is the same as stock, so if you have bind you need to shim the Dalton too.

 

[Beerman]

The problem with the QAY weights is that there is only 1 screw hole down the weight and the screw in the weight needs to be bottomed out....no matter what length screw you put in there. You need to find a lightweight "filler" or something that will take the space up deep in the hole and then you can put a shorter steel screw in to hold that "filler" in the weight.

Here are a couple things you can do. Did you get any aluminum screws with the kit or are they all steel? I would find a 3/4"aluminum screw like the steel one you have in the kit. Put the aluminum screw in first and then a shorter steel screw in to hold that. This takes the weight off of the tip to let you raise your top rpm's. You might even be able to use just the 3/4" aluminum.

Terry, thanks for the insight.

There are only steel screws with the wights, so I'll see what I can find in aluminum. In addition to moving weight off the tip, should I try less total weight? If yes, how much less total weight?

 

[Kevin]

Spring pocket is the same as stock, so if you have bind you need to shim the Dalton too.

thanks

 

[NOS-PRO]

Terry, thanks for the insight.

There are only steel screws with the wights, so I'll see what I can find in aluminum. In addition to moving weight off the tip, should I try less total weight? If yes, how much less total weight?

Rule of thumb is .7 gram off each weight is 100 rpm's. So I would try 2 grams off of the weights, hopefully off the tip if you can. Start there

 

[done dooin'_winder up]

ordered my 35/39 sunday, delivered today before noon.! very nice looking piece!

 

[Shagnos]

NOS or Shagman, I was going to PM you but thought your input would be better in public where it might help others. If you see my 2 posts a couple back . . . I'm dropping RPM with both 3-3 and 6-1 and interested in your thoughts on how I can correct it. It held 8900 perfectly with the Daltons set up for Ben's EcoTrail tune. I chalked it up to crappy conditions, but am not sure. It managed a best of 119 on GPS wrapped at 3-3 only revving to 8400. Wrapped to 6-1 I could get it to 8650 but after 1000' it started dropping. Thanks!

Just curious. Did you get fuel at that little station right off of Little Saint right by where we were staying? By the point I think its the Northwoods across the street.