Tested the 33/35 reverse angle helix

[NOS-PRO]

If you can hook up? Won't that hurt fuel economy a bit?

Fuel economy should and will be the same. For better fuel economy you want to go with the steeper helix angle so you have more pull and less throttle. This 33/35 angle helix was made to make the engine rev quicker as some were saying there is a lag. Plus, it's going to be incredible for guys with studs.

And yes, hooking up is a major factor. But that is where suspension tuning comes into the equation.

What will that do to the top end speed ?

If we are talking....using the stock 35° helix compared to installing a 33/35 helix.... You will gain top end because the new helix is clearanced out for coil bind. Stock sled to one with the new helix, the one with the new helix will jump out (of course traction is key) and pull away on top end.

Dan ,we need springs with less coils

If there is a spring out there....I wish I had it. Problem is that you need the twist rate for the turbo....not just side pressure. The stock secondary spring works good....just have to give it space to move.

 

[bleedyamaha]

Thanks Nos. I am all stock except for studs. I can creep out if my garage without spinning the track on concrete. Will I still be able to do that or is the engagement going to be to quick?

 

[rnusr01]

Thunder Products is selling reverse angle 33/35 degree helix's that not only are clearanced out for the secondary coil bind, but will make the sled rev quicker, improves 60 foot times and would be a great helix for off-trail or very quick corner to corner trail riding.

On hard-pack the helix allows the engine to rev instantly giving you one hell of a holeshot!

Whats the difference between standard and reverse angle?

 

[krm]

Thanks Nos. I am all stock except for studs. I can creep out if my garage without spinning the track on concrete. Will I still be able to do that or is the engagement going to be to quick?

It has noting to do with engagement .

 

[krm]

Whats the difference between standard and reverse angle?

std is 35 reverse is 33/35

 

[bleedyamaha]

It has noting to do with engagement .

So just a quicker reaction to how hard you hit the flipper.

 

[Mighty]

Cat seems to have their clutches all good now, and now its YAM that is chasing their tail.

Tcats seem to be abound too, cheap!

They have that crap secondary setup

 

[actionjack]

So it looks like Glide washers for the primary spring and 33/35 deep pocket helix for a pretty much stock sled. Damn too late to overnight for tomorrow. Definitely will start here next season. Thanks for the info guys.

 

[Doowithblue]

I have 35/37 for sale. Machined for OD. Bought a 2018 tcat.

 

[NOS-PRO]

Thanks Nos. I am all stock except for studs. I can creep out if my garage without spinning the track on concrete. Will I still be able to do that or is the engagement going to be to quick?

Same engagement....just quicker response when you stab the throttle.

I have 35/37 for sale. Machined for OD. Bought a 2018 tcat.

Here you go guys! Best of both worlds here for someone. The 33/35 will be quicker accelerating, the 35/39 is for top end, fuel economy (especially with the tunes) and I think the 35/37 would be a great all around helix. Little more top end with the same stock starting angle, but more aggressive finish angle. Doowithblue, post your results on this helix.

 

[Doowithblue]

Thanks terry. Honestly never had a chance to try it. Sold the sled. Brand new.

 

[NOS-PRO]

Thanks terry. Honestly never had a chance to try it. Sold the sled. Brand new.

Hoping there is someone that will purchase this from you and do a little testing....cause I am curious

 

[kylechargerrt]

NOS would any adjustment be required with primary weighting or just run as is?

Sent from my SM-G930W8 using Tapatalk

 

[RJH]

Whats the difference between standard and reverse angle?

A normal helix will have the larger number first. For example all snowcross sleds may have a say..69 - 42 helix. They want to 69 to get the track spinning like crazy to squirt out the loose snow on the starts. Move a lot of snow..then...within less then say 1/2" the rollers come on the 42 degree angle which allows the sled to shift or run normally.

So reverse means ..he has the smaller number first.

So with this model..33 start..you get very low track speed allowing it to be more comfortable driving around very slow..the sled won't trench as easy.

It will then slide to the 35 quickly for better back-shift on the trails.

In racing you can do a lot with helix angles....for me on the trail ..I like straight cause at slow speeds it may be going from angle to angle as I have not pinned it.

You can also get smooth takeoff other ways.

Foe some reason..aftermarket and OEM are making weights that....rev more than go forward at the early start...

I will do a post on that someday soon.

33 - 35 is good

 

[NOS-PRO]

NOS would any adjustment be required with primary weighting or just run as is?

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I ran it "as is"

But, depending on hook up, some might spin with a different lug track....just saying. Conditions are everything.