Toms 3D clutch lever arms
- Thread starter bacon1
- Start date
They work great. unlimited loading potential.
X2 on Tom's arms.
Been running them since prototype phase. Very good product. Then if you throw in ramp, roller, spring, helix combos you have limitless combos.
You can simply add more pin weight or go with less primary spring if the goal is just to get to a higher clicker. Toms arms are a great option for further adjustability at various shift ratios.
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bacon1
Member
That's where I'm at now. My pins are full so I can't add anymore weight, that's why I was considering these arms. I would like to keep my same engagement rpm, but wouldn't a lighter spring change that? I'm fairly new to clutching but have a pretty good idea of how it all works.
Thanks for your help.
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sledsrock
Well-known member
Keep the initial rate the same and soften the finish, then you can drop pin weight.
If they are the stock pins or even aftermarket, you can get heavier pins and tungsten set screws. What are you at for pin weight now?
Another thing to think about is just adding pin weight causes more wear on arms and rollers. Less spring and less weight will let things last longer and is typically more responsive.
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bacon1
Member
You know what? I just had it all apart, cleaned everything and put it back together this morning and completely forgot to weigh my pins.. I'm fairly certain it's right around 21 grams with Dalton mid-weight pins and a Yellow/Blue spring. My secondary is running DJ's D2 helix with a purple spring and 21/49 gears.
Extra wear is something I never considered. I've never really played with different spring combos to see how they change shift characteristics.
As it sits now it rips pretty awesome, but we always want more!
With our Gen 4 arm, you can run some serious weight, under the roller and pin. (see attachment, 20 gr. in #1 position)
This allows you to run a light pin and normal clutch spring, allowing for more normal like bottom end reaction from a turbo sled. Plus the weights are easily changeable for your own preferences.
Do you have a side view of the arms?
The picture kinda makes it look like it double hinged at the aluminum weight.
Here is a side view of the arm. Also included are some weights we have used with our turbo testing. Some of these weights are more then 20 gr., so you better be using some serious boost to make it work.
We also include a hard ano lever axle as well as a lightweight pin we found offers us the best overall performance with the purchase of a set of 3-D arms
We also include a hard ano lever axle as well as a lightweight pin we found offers us the best overall performance with the purchase of a set of 3-D arms
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