C3 block or HCR steering post upgrade

bm77164 · Oct 28, 2015

Hi guys. Back on a cat this year. Bought a 15 m8000. Coming off my xm. I would really like to ditch the adjustable bars and go back to a fixed post like the Xm. I would like to get it forward also. My question is does the HCR post mod from cat move them forward or same position and fixed? I'm going to either do a big bore or turbo kit, if I do the turbo I'm sure the stock airbox goes away, so I'm not too worried about the c3, if I don't do a turbo I'm not sure I want to cut the box. I'm sure this has been beaten to death, I have read several posts on the subject already but still am not clear what to do. Thanks in advance!

Jacob02 · Oct 28, 2015

Well. If you're contemplating a Turbo... an extra Airbox, fixed steering post, and C3 kit is cheap.

I thought it was pretty labor intensive myself... The cutting part.

bm77164 · Oct 28, 2015

Jacob02 said:
Well. If you're contemplating a Turbo... an extra Airbox, fixed steering post, and C3 kit is cheap.

I thought it was pretty labor intensive myself... The cutting part.

It sounds like it. That's why I was curious on the HCR post conversion. Cat sells the kit in their accessory book

Jacob02 · Oct 28, 2015

The 2015 HCR Post is fixed... but does not work with the C3 kit.

Jacob02 · Oct 28, 2015

You'll need the following parts along with the C3 kit plus a riser of your choice:

o 1605-118 (2) caps
o 8408-830 (4) bolt M8x1.25x30
o 1705-309 (1) steering post

bm77164 · Oct 28, 2015

Jacob02 said:
You'll need the following parts along with the C3 kit plus a riser of your choice:

o 1605-118 (2) caps
o 8408-830 (4) bolt M8x1.25x30
o 1705-309 (1) steering post

So the HCR post doesn't move it forward at all, same location just fixed?

richardderkevorkian · Oct 29, 2015

bm77164 said:
So the HCR post doesn't move it forward at all, same location just fixed?

Doesn't move it at all.

Chewy22 · Oct 29, 2015

bm77164 said:
So the HCR post doesn't move it forward at all, same location just fixed?

The post is in the same location as the adjustable. However, you can push the bars forward a bit by angling the riser forward.

Once the snow flies, I'll have both setups on the hill at the same time. Switching back and forth will give me a good idea which setup I like better.

For real technical riding lower is better, regardless which setup you go with. I've used both a 3 1/2" and 4 1/2" riser on my C3 setup.

Overall I like my body position on the C3 setup and it's very comfortable. It did seem like I flew over the bars/hood more often and more easily with the C3 setup. My height could be a big contributing factor also.

bm77164 · Oct 29, 2015

Chewy22 said:
The post is in the same location as the adjustable. However, you can push the bars forward a bit by angling the riser forward.

Once the snow flies, I'll have both setups on the hill at the same time. Switching back and forth will give me a good idea which setup I like better.

For real technical riding lower is better, regardless which setup you go with. I've used both a 3 1/2" and 4 1/2" riser on my C3 setup.

Overall I like my body position on the C3 setup and it's very comfortable. It did seem like I flew over the bars/hood more often and more easily with the C3 setup. My height could be a big contributing factor also.

how tall are you?

Chewy22 · Oct 29, 2015

bm77164 said:
how tall are you?

6' 4"

bradburck · Oct 29, 2015

I have done both and more than a season on both...

doing it again I would do the post forward. Did mine with a 2" riser and I'm 6'2", but prefer a low set of bars. The sweep of the bars is different, but easy to get used too would be SUPER easy coming from an XM. I liked being able to get more forward on the chassis when I wanted too and I felt like helped with wash out in the steepest areas as well as being aggressive on the trail in and out, got my weight off more off the rear skid so I could run lower pressures back there as well.

Get as much weight off the sled as you can with an intake, etc and it really is a solid package.

Plus I HATED the slop in the adjustable post on all M sleds since they added it, have been on a fixed post after 1 year of the adjustable years ago. Best of luck, it's a great sled, a better overall package than the XM in my opinion.

bm77164 · Oct 29, 2015

bradburck said:
I have done both and more than a season on both...

doing it again I would do the post forward. Did mine with a 2" riser and I'm 6'2", but prefer a low set of bars. The sweep of the bars is different, but easy to get used too would be SUPER easy coming from an XM. I liked being able to get more forward on the chassis when I wanted too and I felt like helped with wash out in the steepest areas as well as being aggressive on the trail in and out, got my weight off more off the rear skid so I could run lower pressures back there as well.

Get as much weight off the sled as you can with an intake, etc and it really is a solid package.

Plus I HATED the slop in the adjustable post on all M sleds since they added it, have been on a fixed post after 1 year of the adjustable years ago. Best of luck, it's a great sled, a better overall package than the XM in my opinion.

thanks a lot! so you would do both fixed post and the block? also thanks for the info on the XM comparison. I was worried I would like this sled less... was thinking of riding it before spending money on either a turbo or big bore, but I have had several people say they like they was this chassis handles.

bm77164 · Oct 29, 2015

bm77164 said:
how tall are you?

im 6ft2, curious as which riser you liked better...

Chewy22 · Oct 29, 2015

bm77164 said:
im 6ft2, curious as which riser you liked better...

I started with the 3 1/2" then switched to the 4 1/2". For everything besides real technical steeper terrain I like the 4 better. But this year if I decide to use my C3 post forward setup, I will use the 3 and adapt to it.

What I really want to try is what Wyo did to his 16. Fixed post setup, shortened 2 inches and using the small ski-doo adjustable riser. All the way up puts the bars at stock height. The only problem is cat's t-top is almost to narrow for the ski-doo riser. You can get it to work but can collapse on hard hits. If I guy was real ambitious a ski-doo t-top could be welded onto the cat post.

bm77164 · Oct 29, 2015

Chewy22 said:
I started with the 3 1/2" then switched to the 4 1/2". For everything besides real technical steeper terrain I like the 4 better. But this year if I decide to use my C3 post forward setup, I will use the 3 and adapt to it.

What I really want to try is what Wyo did to his 16. Fixed post setup, shortened 2 inches and using the small ski-doo adjustable riser. All the way up puts the bars at stock height. The only problem is cat's t-top is almost to narrow for the ski-doo riser. You can get it to work but can collapse on hard hits. If I guy was real ambitious a ski-doo t-top could be welded onto the cat post.

Is there 2 different c3 post relocation kits? a 3" and 2"? if s which did you use?

Chewy22 · Oct 29, 2015

bm77164 said:
Is there 2 different c3 post relocation kits? a 3" and 2"? if s which did you use?

Yes he has a 2" and 3" kit. Mine is the 3".

bm77164 · Oct 29, 2015

Chewy22 said:
Yes he has a 2" and 3" kit. Mine is the 3".

does it sound correct that you don't need to trim the airbox with the 2"?

F_ast · Oct 29, 2015

Check out the Z-bros adjustable riser adapter.

Its th cheapest way to make your adjustable riser a fixed post. You basically disassemble the adjustable riser, cut the octagon slide section and bolt on the riser base. its pretty slick. I run it on my 15 m8000

http://zbrozracing.com/proclimb-arctic-cat-pro-climb-cross-snowmobile-adjustable-post-delete-kit

Chewy22 · Oct 29, 2015

bm77164 said:
does it sound correct that you don't need to trim the airbox with the 2"?

I don't know for certain, but I think it will still need to be cut. Look how close the stock post is to the air box. If you move that forward 2 inches still think a cut is needed

Jacob02 · Oct 29, 2015

bm77164 said:
does it sound correct that you don't need to trim the airbox with the 2"?

You'll have to cut it

C3 block or HCR steering post upgrade

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