The pin looks pretty good. Would say the only thing to watch out for is how deep that spring is recessed. Can't tell from the picture. The ball is loosing contact with more recess. But that is not the problem. Real problem is that the center of contact is shifted higher up in the ball. Shifted too high, and you will create a torque on the ball that will result in binding again.
Ratio of distance from center of contact to center of ball divided by the thickness of remaining material. If is greater than 2, then you will start getting into danger zone of binding.
Pan car always use spring on the king pin. Mini-z are so small is hard to fit the spring under the knuckle. Stock mini-z has about 2.5mm of suspension travel. 1/10 scale car probably only have slightly more travel, but they have more room to work with.
Thanks for the info Ben. Yeah, we had looked into this, and waited to test it thoroughly before we announced the release for these reasons. But we have not found any problems with binding at all. We tested different depths of recession on the balls and also different length springs.
It all started because people wanted to run our kingpins with the PN lower parts. It evolved to people wanting reverse kingpins with the 4 degree caster setting. This takes care of both. The springs can be run at the top or at the bottom. No binding. No Rubbing. No Modifying.
__________________
Cristian Tabush
REFLEX RACING USA
10 Time Mini-Z World Champions!!! http://www.reflexracing net
I cant wait to start running this... I have been fiddling around with reversing the stock kingpins, but dont like the arm flex. I think that this will be the most precise and responsive suspension for the MR03 yet...
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EMUracing Micro RC Syndicate /DG Designs /GSR /Reflex Racing /Fast By Faqish /MurderTown Racing
I cant wait to start running this... I have been fiddling around with reversing the stock kingpins, but dont like the arm flex. I think that this will be the most precise and responsive suspension for the MR03 yet...
Your gonna like this setup! i drove a few packs thru my car last weekend after putting on the reverse king pins, the percision is there, not to mention it is super smooth. The car was very easy to drive and went right where I wanted it to go.
With the Reflex long king pins I used Kyosho 5k grease but with the reverse king pins I found that it needed somthing thicker, the Reflex medium dampening grease worked very well for me.
above pic is what i am trying out with rr reverse king pin idea. i just used an 02 king pin with a 02 spring limiter as a shim. it works and allows me to work on easily as all i have to remove is 1 plastic e clip.
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PN Racing
R1Wurks
LET's Go Racing
MBMZR
DG Designs
i like that idea with the 02 pin, i think if the RR pins had a flange on bottom end of the pin and used a plastic e clip on the top it would make changes much easier and faster, "on the fly" like the extra long pins.
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Mini-Car Club of Canada (MC3) Member
Whenever the second edition comes out, we are considering the flange at the bottom. At the top however, we will keep the metallic e-clip to keep the cost of the kit down. We do not have molding capabilities yet.
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Cristian Tabush
REFLEX RACING USA
10 Time Mini-Z World Champions!!! http://www.reflexracing net
how about just let us provide the plastic e clip. im sure most everyone has them. but i do understand trying make a kit with all the parts in one package.
i really do like this setup and have gotten 2 cars running it and just set up this chassis to run a lm at 102 for this weekends carolina cup. i wanted to try this idea so i could change springs and shims a little faster on the fly.
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PN Racing
R1Wurks
LET's Go Racing
MBMZR
DG Designs
Yes they are from the rr kit. You still need the lower balls as well. Me and CT spoke at the worlds about this and he mentioned the next batch may come with the lower flange. I just wanted to try it out sooner. I also got another idea. I've Seen a few good racers use the long arms with spring over and in normal spring postion. I was going to try this setup with a spring on top as well. Its worth trying out.
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PN Racing
R1Wurks
LET's Go Racing
MBMZR
DG Designs
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