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Old 2012.01.18, 11:12 AM   #16
Chicken Little
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This is amazing!!! I can't wait to try it. I hope this has a patent b/c it would be a shame if someone just rebranded it.
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Old 2012.01.18, 11:19 AM   #17
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i was woundering if there was a reason not to make the gears out of delrin instead of alum.
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Old 2012.01.18, 11:23 AM   #18
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Originally Posted by chad508 View Post
i was woundering if there was a reason not to make the gears out of delrin instead of alum.
I imagine that it would avoid overzealous tightening/crushing of the gears.

I really want one...
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Old 2012.01.18, 12:51 PM   #19
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This is a piece of ART!!
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Old 2012.01.18, 01:23 PM   #20
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Can someone explain why they would want a gear diff rather than a ball diff? I don't get it?
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Old 2012.01.18, 02:13 PM   #21
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imo... you would benefit from a gear diff when running higher turn motors such as 80t or 70t stock class racing... the reason for this is the motors arent strong enough to spin the tires if there is traction so most of the times we just lock up our ball diffs to eliminate slip to pick up those precious tenths of a second every lap... the down side to this is when you lock up a ball diff you lose rotation cause it doesnt allow the ball diff to transition quickly through the infield... with a gear diff there is no chance of slip but it will always spin freely... allowing for greater rotation through the infield...
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Old 2012.01.18, 02:54 PM   #22
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imo... you would benefit from a gear diff when running higher turn motors such as 80t or 70t stock class racing... the reason for this is the motors arent strong enough to spin the tires if there is traction so most of the times we just lock up our ball diffs to eliminate slip to pick up those precious tenths of a second every lap... the down side to this is when you lock up a ball diff you lose rotation cause it doesnt allow the ball diff to transition quickly through the infield... with a gear diff there is no chance of slip but it will always spin freely... allowing for greater rotation through the infield...
Good explanation, JR!
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Old 2012.01.18, 05:18 PM   #23
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Good explanation. I was actually going to use mine for Mod -- in 70t or 80t Stock the motors don't actually slip the diff so you can leave a ball diff super-loose (I sometimes even use harder rear tires) for turn-in steering and corner exit speeds and tire loads are lower so you won't "diff out" on exit.

In Mod though, super-loose diffs WILL diff out on exit, and tighter diffs hamper off-power turn in. The gear diff removes this compromise as it's loose off-power for turn-in, tight on-power for exit speed, and (an extra benefit) tight on-brake for braking stability. When I drove Grant's prototype, the forward drive on exit was huge. The strong locking effect and no-slip design makes the rear end slip out a little more, but at the same time the slip is predictable = more exit steering. The only conditions in which I wouldn't dare use a gear diff is if there's not enough rear traction to make a safety envelope for the increased steering all around.
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Old 2012.01.19, 06:00 PM   #24
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AWESOME !

When would that be released ?
January 28th from what I heard.
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Old 2012.01.20, 02:40 AM   #25
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Wow, looks amazing! Don't suppose there's any chance for the AWD version...
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Old 2012.01.20, 03:24 PM   #26
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Whoa... Always said some peoples cars were tuned like swiss watches! Now they will have the gears to match! Awesome work!

Any weight comparisions done yet? Just wondering about the whole rotating mass thing.
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Old 2012.01.21, 12:11 AM   #27
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Wow, looks amazing! Don't suppose there's any chance for the AWD version...
This looks great, I am wondering the same, will PN make a gear diff for the AWD? or at least the spider gears for the AWD?
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Old 2012.01.21, 09:50 AM   #28
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Originally Posted by JuniorWKR View Post
imo... you would benefit from a gear diff when running higher turn motors such as 80t or 70t stock class racing... the reason for this is the motors arent strong enough to spin the tires if there is traction so most of the times we just lock up our ball diffs to eliminate slip to pick up those precious tenths of a second every lap... the down side to this is when you lock up a ball diff you lose rotation cause it doesnt allow the ball diff to transition quickly through the infield... with a gear diff there is no chance of slip but it will always spin freely... allowing for greater rotation through the infield...
JR, we got a taste of it last night in JT's car and it was amazing in 70T stock. The corner throttle was instant response especially through the carousel in full throttle without loosing composure! Also weights like nothing of 4 gram so can't weight to my hands of one.
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Old 2012.01.21, 10:47 AM   #29
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but its pricey
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Old 2012.01.21, 11:10 AM   #30
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but its pricey
Yes, I understanding, because whole gear diff except the Japan O-ring, all parts is CNC machine cut, if feedback is good, I will start to make Delrin molding gear, lower the cost and lower retail price.

And also we start to designing for AWD too.
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