Tapp Roller Spider

[fatchance]

Justin you're making me second guess the washer weight on the 24' TAPP, but my notes say 1.2g each.

I know this to be fact with the older TAPP because i pulled the TAPP from the 17' to put on the 25' and weighed everything again and definitively the washers were 1.2g each

 

[See n blue]

Going to try a few different helix’s as well.

 

[justinator]

Justin you're making me second guess the washer weight on the 24' TAPP, but my notes say 1.2g each.

I know this to be fact with the older TAPP because i pulled the TAPP from the 17' to put on the 25' and weighed everything again and definitively the washers were 1.2g each

2.2 grams each. Washers are .072 thick and .600 in diameter. I have a dalton 65 adapt weight on scale for reference to accuracy.

 

[KnappAttack]

Obviously they have changed suppliers for the washers and they are a gram heavier than they were. Even their instructions state the washers are 1.2G so they will need to change that. Doesn't effect much other than people trying get setup help from others. So you can throw washer count out the window I guess.

Also this seems to show that there is no gain to be had running a roller spider over a button spider when having to run the same weight or even more weight in the roller spider. I didn't figure their would be as I have been down this road already when running the AAEN Comet primary vs the old Std. Comet primary years ago, and the AAEN even had real ball bearings in the roller spider which would be even less friction than just a roller on a pin. The button spider is also quieter for trail use then the roller spider also.





From their online tuning guide.

The TAPP Clutch includes a Roller Bolt Weight Kit with the following parts: Roller Bolts: 1 ½” = 5.8 grams 1 ¾” = 6.8 grams 2” = 7.5 grams Washers: Regular = 1.2 grams

 

[See n blue]

One would think the roller is more efficient given its nature. I agree with you on it being louder threw me off.

 

[KnappAttack]

One would think the roller is more efficient given its nature. I agree with you on it being louder threw me off.

Yes, you would think that. That’s why I had to try a roller primary myself to see, I went so far as to put roller bearings in the weight rollers, if for nothing else just to help with reaction time. It may have helped slightly for reaction but did nothing for performance on the ET or speed. As you can imagine, I had to try everything at least once, and I had to try it for myself. Keep in mind on the race sleds I would log with a Racepak computer so we could see things down to the thousandths of a second and log all the data being presented.

The secondary on the other hand is a completely different story, rollers there is a help in back shifting on a trail sled or any machine that accelerates and decelerates adding consistency, but for all out drag racing performance where only acceleration is needed, there is also nothing to be gained with a roller even in the secondary, buttons work there just as well maybe better as you can get by with less spring pressure on the buttons.

 

[See n blue]

Very interesting info, thanks for sharing. I have to be one to try myself just to see the difference.
I’m going to try 2mm rollers across from eachother to start. My sled works well but I know there’s more in it. Going to try a 46/40 with cat green. Should increase acceleration on the hit over the 42.