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Old 02-07-2011, 01:25 AM   #6991
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I blew out another ball diff in the rear... any suggestions for fluid in a rear uPro?
Nothing beats the spec-r gear diff. I think the BD5 spec-r fits the photon with a few shims.

The Upro diffs suck. I have gone through 3 of them. And im sure you saw Tony shred his yesterday.
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Old 02-07-2011, 03:37 AM   #6992
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Final Stage RC-Photon LiPo chassis set(ProtoType)
New version motor mount will be red...

Seeking distributors...
Attached Thumbnails
T.O.P. Racing "Photon" 1/10 EP Touring Car-photon-fs01.jpg   T.O.P. Racing "Photon" 1/10 EP Touring Car-photon-fs02.jpg   T.O.P. Racing "Photon" 1/10 EP Touring Car-photon-fs03.jpg   T.O.P. Racing "Photon" 1/10 EP Touring Car-photon-fs04.jpg  
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Old 02-07-2011, 05:07 AM   #6993
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Originally Posted by JoJiAuE View Post
Final Stage RC-Photon LiPo chassis set(ProtoType)
New version motor mount will be red...

Seeking distributors...
nice ...
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Old 02-07-2011, 08:04 AM   #6994
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Nothing beats the spec-r gear diff. I think the BD5 spec-r fits the photon with a few shims.

The Upro diffs suck. I have gone through 3 of them. And im sure you saw Tony shred his yesterday.
I hear good things about the Spec-R. I did see Tony's ripped up, but i think it was probably due for a rebuild. Mine is too new to know of its durability...but it was butter smooth yesterday with no problems... not even a leak or seepage.

Ill see if a local has a spare i can try to see if its even worth shelling out the coin for a second gear diff...
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Old 02-07-2011, 08:12 AM   #6995
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Dave, Mine hasnt leaked either but when I pulled it out to change the fluid in it, it is feeling pretty notchy and rough. I haven't run boosted with it either so I am not sure about this u pro diff anymore. Need to inspect it and go from there.
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Old 02-07-2011, 08:34 AM   #6996
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i ran top photon gdiff before..it's so rough...then i switch to spec-r , it's butter smooth...but it's does leak alittle though



Roche released Spool v2 for TOp Photon. (spool cup made from spring steel)
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Old 02-07-2011, 08:52 AM   #6997
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Originally Posted by KingKarate757 View Post
Nothing beats the spec-r gear diff. I think the BD5 spec-r fits the photon with a few shims.

The Upro diffs suck. I have gone through 3 of them. And im sure you saw Tony shred his yesterday.
I just bought a Photon and will start building it this week. I also bought a BD5 Spec-R gear diff too, what size and approximately how many shims will I need for a good fit? Also what is a good starting point for the diff fluid? I will be running 17.5 no boost, rubber tire asphalt, medium size track.
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Old 02-07-2011, 08:55 AM   #6998
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If you are running it up front out doors on asphalt my understanding is 120k is a good starting point.
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Old 02-07-2011, 09:00 AM   #6999
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Originally Posted by JoJiAuE View Post
Final Stage RC-Photon LiPo chassis set(ProtoType)
New version motor mount will be red...

Seeking distributors...
How thick is the chassis?
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Old 02-07-2011, 09:06 AM   #7000
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If you are running it up front out doors on asphalt my understanding is 120k is a good starting point.
How about running it in the rear, indoors?
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Old 02-07-2011, 09:21 AM   #7001
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indoors rear I would start at 2k depending on traction outdoors on asphalt I think I would start at about 10k and adjust from there.
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Old 02-07-2011, 10:26 AM   #7002
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Originally Posted by JoJiAuE View Post
Final Stage RC-Photon LiPo chassis set(ProtoType)
New version motor mount will be red...

Seeking distributors...
wow good project!
but I hate the cut under the motor...why this choice?
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Old 02-07-2011, 10:28 AM   #7003
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How thick is the chassis?
2.4mm
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Old 02-07-2011, 10:33 AM   #7004
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If your going to buy gear diffs.. I would go ahead and spend the few extra bucks and buy the Real Yokomo Gear diff.
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Old 02-07-2011, 10:39 AM   #7005
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wow good project!
but I hate the cut under the motor...why this choice?
lower the center of gravity...
0.5mm lower than the original motor mount.
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