Doo doctor floating secondary

i'llDooit · Apr 18, 2017

Maybe with some great summons for excellence Doo will offer the 2018 with a floating secondary. Doubtful. I'm going to run one on my 18 regardless. Accompanied with the Roosterbuilt kit. Anyone run the floating secondary on the 17 with some good feedback?

mtncat · Apr 18, 2017

floating secondary on a 17 TMS927 100 miles on stock secondary 500 miles on floating, removed noise insulation, no cooling holes in clutch cover, have had 0 belt issues with my primary, secondary changes

nickbeann · Apr 18, 2017

mtncat said:
floating secondary on a 17 TMS927 100 miles on stock secondary 500 miles on floating, removed noise insulation, no cooling holes in clutch cover, have had 0 belt issues with my primary, secondary changes

your primary stock also on that tms927 with the wobble still on it?

mtncat · Apr 18, 2017

Stock spring, Stock inner and outer sheaves, ZRP weights loaded to 97.4 Grams. Helix and spring change in secondary and also gearing change.

skinner73 · Apr 18, 2017

Is your secondary a DooDoctor secondary?

mtncat · Apr 18, 2017

No it is not a Doo doctor, custom shaft and a tundra 550 outer half with the shaft machined down to allow it to float

i'llDooit · Apr 18, 2017

With a factory wobble? I figured the float would be a pretty solid way to put the power to the track and not to the belt slip.

nickbeann · Apr 19, 2017

mtncat said:
Stock spring, Stock inner and outer sheaves, ZRP weights loaded to 97.4 Grams. Helix and spring change in secondary and also gearing change.

Just being curious,,, did u happen to look at yr primary inner sleave and could u notice the wobble that is being seen on other g4's? thanks

mtncat · Apr 19, 2017

Yes you can see the low spot on the inner sheave in the form of discoloration from belt slippage, I will say that I am also running a shim in both the front and rear engine mount on the PTO side to help control engine movement which is possibly counter productive to the BRP theory for the wobble. I have a light weight TRA that I would like to try on the 850 but would need to have the taper checked to confirm fitment.

revx827 · Apr 25, 2017

mtncat said:
Yes you can see the low spot on the inner sheave in the form of discoloration from belt slippage, I will say that I am also running a shim in both the front and rear engine mount on the PTO side to help control engine movement which is possibly counter productive to the BRP theory for the wobble. I have a light weight TRA that I would like to try on the 850 but would need to have the taper checked to confirm fitment.

Any pics of your shaft? Direct bolt in?
Do you have price?

mtncat · Apr 25, 2017

Direct bolt in, have no price as this was a custom shaft made for the 850 chassis, shorter shaft from chain case to PTO bearing than the XM chassis, the only picture I can get you would be with the secondary off.

revx827 · Apr 25, 2017

mtncat said:
Direct bolt in, have no price as this was a custom shaft made for the 850 chassis, shorter shaft from chain case to PTO bearing than the XM chassis, the only picture I can get you would be with the secondary off.

Pics would be sweet

dave@trygstadmotorsports · Apr 25, 2017

850 G4 jackshaft

mtncat said:
Direct bolt in, have no price as this was a custom shaft made for the 850 chassis, shorter shaft from chain case to PTO bearing than the XM chassis, the only picture I can get you would be with the secondary off.

Mtncat
Should have more available this summer.
Dave Trygstad

revx827 · Apr 26, 2017

dave@trygstadmotorsports said:
Mtncat
Should have more available this summer.
Dave Trygstad

Any pics or price for rest of us?
Mtncat already has one

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Doo doctor floating secondary

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