Black ice helix question

BU1 · Dec 6, 2009

I know alot of the knowledgable Doo guys have long since moved on to newer iron, but maybe someone will see this.

I have acquired an HRP 40/34 helix for the formula button clutch. Is this too shallow to run in the mtns??

Sled is a 2000 700 Summit. Setback to 151. 287 ramps. 160-290 spring. Goodwin buttons in secondary with beige spring. 19 or 21/44 gearing depending on the mood.

I know the angles are measured differently than Doo helixes. Some say 4* some say 8*.

Thanks for any advice.:beer;

winter brew · Dec 6, 2009

Try it, should be able to make that work good.....might need to play with primary setup of course.

TT670 · Dec 6, 2009

BU1 said:
I know alot of the knowledgable Doo guys have long since moved on to newer iron, but maybe someone will see this.

I have acquired an HRP 40/34 helix for the formula button clutch. Is this too shallow to run in the mtns??

Sled is a 2000 700 Summit. Setback to 151. 287 ramps. 160-290 spring. Goodwin buttons in secondary with beige spring. 19 or 21/44 gearing depending on the mood.

I know the angles are measured differently than Doo helixes. Some say 4* some say 8*.

Thanks for any advice.:beer;

Brad Hulings used to claim 8 degrees different from a stock formula helix. 4 degrees of it was due to the way the angles are measured and another 4 degrees worth due to the hard anodized coating compared the the bare aluminum that was standard at the time.

BU1 · Dec 19, 2009

Thank you.:beer;

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Black ice helix question

BU1

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winter brew

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TT670

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