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View Full Version : PN Light Wt. Ceramic Diff Set v2


Tjay
2010.05.21, 04:25 PM
Hi Philip,

Do you happen to know how much does this v2 diff weigh? Also, will you be selling the delrin adjuster nut by itself?

Thanks!

http://www.rckenon.com/public_html/shop2/catalog/images/MR2049.jpg

http://www.pnracing.us/MR2049-1.jpg
http://www.pnracing.us/MR2049-2.jpg
http://www.pnracing.us/MR2049-3.jpg

dorifto46
2010.05.21, 05:36 PM
Why couldnt this be released one day earlier?!! I just spent 70 bucks yesterday building me a diff!

pfcparts
2010.05.21, 06:09 PM
Delrin nut is brilliant.

Cheaper to replace if stripped than a shaft...
and less work. :p

Hopefully the bearing on the end is easier to
remove this time around.

I wonder how much of a savings in weight it is
vs the qteq set up or an atomic one. At half
the price with more set up options stock this
might be the best bang for the buck.


parts

Tjay
2010.05.21, 06:54 PM
I just hope that this diff set is lighter than qteq or at least the same weight. Also, I wonder if the plates are as hard as kyosho. The v2 plates are so soft...

dorifto46: LOL!!!

skyler
2010.05.21, 06:55 PM
Delrin nut is brilliant.

Cheaper to replace if stripped than a shaft...
and less work. :p

Hopefully the bearing on the end is easier to
remove this time around.

I wonder how much of a savings in weight it is
vs the qteq set up or an atomic one. At half
the price with more set up options stock this
might be the best bang for the buck.


parts

I agree. An all out race diff right out of the box...I can't think of any thing you could change to make this diff better! Thanks Philip!

yasuji
2010.05.21, 07:29 PM
I just hope that this diff set is lighter than qteq or at least the same weight. Also, I wonder if the plates are as hard as kyosho. The v2 plates are so soft...

dorifto46: LOL!!!

the v3 plates are much harder but i dont think they are as hard as the K plates and they r thinner than v2 i like them alot!

PNracing
2010.05.21, 07:56 PM
I just hope that this diff set is lighter than qteq or at least the same weight. Also, I wonder if the plates are as hard as kyosho. The v2 plates are so soft...

dorifto46: LOL!!!

The diff is 6.9g, the plate is V3 version harder and 0.8mm thickness

color01
2010.05.22, 03:58 AM
Was waiting to see this come out, Philip, it looks great! Can't wait to try it out during the summer. :)

Felix2010
2010.05.23, 11:11 AM
Nice design all-around. I wonder though if 6.9g is correct for the weight. I have a QteQ diff I built using Kyosho plates (Because they are the best O-cut rings IMO), 10 ceramic balls, a PN "regular" black-delrin 52t spur, PN Ultra-Light 1.29g alloy shaft, and QteQ left hub nut. It weighs 5.77g.

I actually never had a problem with the PN V2 High-Quality D-cut plates. I always have a hard time getting the diff plates to properly "groove" so the diff has the right grip. The PN V2 D-cut rings are the only rings I have had perform the way I want them to with very little time spent tuning/breaking-in.:D

Great looking diff though Philip.:) I'll buy one soon for sure.
-LL3!

lfisminiz
2010.05.25, 07:09 PM
Just got this new diff yesterday. Awesome right out of the box.

Felix2010
2010.06.05, 07:02 AM
Haven't got around to trying one of these new PN V2 diffs yet. I am really wondering about the weight. Can anyone verify the 6.9g that Philip posted? I am hoping this diff is a little bit lighter than that considering the new parts, plus ceramic balls, plus the already-super-excellent PN Ultralight 1.29g Alm. diff shaft.:D

Thanks guys for all the info as always :)

Felix2010
2010.07.16, 08:08 PM
Just wondering, can anyone verify the weight of the new PN 64p v2 diff? I know I already asked this, and Philip quoted the v2 diff @6.9g - But this just seems a little heavy to me. Also, if anyoe has the weight of the new PN 48p v3 diff that'd be great also!!! Thanks in advance!!:D

Rune
2010.07.25, 02:26 PM
Any confirmation on the weight?

CristianTabush
2010.07.25, 05:57 PM
On my scale, it is 6.2g

Felix2010
2010.07.25, 06:01 PM
Thanks CT:D Appreciate the help man.

Rune
2010.07.25, 07:18 PM
Thanks CT.
I assume that is complete with left hub?

Could you weigh the delrin adjusting nut also?

The Reflex Racing, PN, QteQ combo differentials weighs 5.0 grams complete. Maybe the delrin adjuster nut could get the weight down further:eek::D

CristianTabush
2010.07.25, 08:11 PM
Funny, the QteQ adjustment nut is 0.18g, the PN is .22 :o

Felix2010
2010.07.27, 08:44 PM
Thanks again for the weight of the delrin adjust nut CT. I have to say, for the lightest-possible diff nothing can come close the QteQ diff plates + left hub. They are ridiculously light. I remember my lightest diff went from 6.xx high-six's in weight (grams) to low-five's 5.xx grams in weight. For a spinning part this is crucial since spinning parts weight close to 50% more when rotating (I think that's about right). Just like wheels - The lighter the better since rotational weight can be substantial, for slower motors especially like Stock class.

I love the new look of the PN ball diffs, all orangey-pretty, but the PN star-pattern diff housings I think are a bit too robust. If only the housings were thinned-out some and/or more compact like the Qteq units...

The PN diff is still a bargain though for what you get, Ready-To-Run out-the-box and pretty trick. If PN was to only trim 0.8-1.0 grams off, then it would SUPER trick.:D Of course this can be done with non=PN parts, such as by swapping in an RR V2 spur + spacer and an RR ceramic outer bearing.:D

If you take the PN V3 diff @34.88, add 6.99 for the RR V2 spur to make it 64p and lighter, and an additional 5.99 for the RR ceramic bearing, you have a super-nice diff for $47.86. That's around $19 cheaper than a comparable built-from-scratch "High-End" ball diff such as one that I built:

RR V2 spur - $6.99

Qteq Diff housing set - $15.99

Qteq left hub - $6.99

10 x ceramic balls = $9.99

RR ceramic bearing - $5.99

PN alm. shaft Ultra-Light - $12.88

Kyosho MZW206-3 pressure rings - $7.00

RR Orange O-ring - $1.00

Grand Total = $66.83

Not saying the $66.83 doesn't get you the best possible diff available, because it basically is depending on your preference in spur gear; But the PN V3 48p diff is a great value IMO.