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Discussion Starter #1
What are you 670 drivers running your secondary at.
I was told by the guys At DNR to go with a 50/47 helix set at 18 lbs and put in the new 2002 year White spring.
Anybody have experience with this?
 

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Here is my HO longtrack set up. Stock ramps, stock spring, 17.5 gram pins, 50 degree helix, beige spring set at 18lbs. 22/43 gearing and I use the ski-doo gold belt. This for flatland riding, for 10,000 feet I remove 5 grams from the pins and use a 200/350 spring. I am running a 136 X 1.5 track.
 

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On my 98 670x HO I've got 47 deg helix, beige spring set on C6, it seems that 16-18 lbs works the best.
 

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Hey dulie,  Did you end up trying this setup?  If so, how did it work out?

I thinking of getting a white spring and trying this,  (except for i will be using a BI helix.)
 

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Discussion Starter #6
Not Yet, I ride every weekend so I spend my afternoons during the week doing honey-doos. I`m also getting the parts together to long track this sled so I'll probably do all my stuff at the same time.
 

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My SummitX setup at 1000' altitude is 16.3 gram solid pins, 160/290 spring, 287 ramps.  Goodwin Blue at C-6, teflon buttons and stock 47 deg helix.
 
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