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Old 06-07-2011, 06:28 AM   #7681
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Hi guys.
Why did you change the position of the servo?
Example photo in the post 7677. thanks in advance)
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Old 06-07-2011, 06:39 AM   #7682
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Hi ILYA
I changed the servo position to accommodate better amb , esc and receiver and to improve the weight balancing , here in Brasil we run with 1350gr. of limit , to equilibrate my car had to stay with 1395gr. with the turned servo managed to let the balanced car with 1360gr. !!!
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Old 06-07-2011, 01:50 PM   #7683
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Where ever happen to the promise Reedy Race set up?
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Old 06-07-2011, 05:30 PM   #7684
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Quote:
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Where ever happen to the promise Reedy Race set up?
I wouldn't mine trying that setup also.
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Old 06-07-2011, 09:56 PM   #7685
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Sorry guys about not getting that set up posted yet. I don't have a set up sheet with me to fill out and don't have pdf version either. I will be with EJ this weekend at a race and I will get the set up sheet dialed in with him as I'm sure we will be pitting together. Just a bit more time and I'll have up shortly.
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Old 06-08-2011, 05:15 AM   #7686
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Jesse - I have an editable setup sheet here -

http://racerlog.com/wiki/T.O.P._Photon#Setups
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Old 06-08-2011, 05:29 AM   #7687
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My Yoko gear diff just arrived today, of interest that I noticed right away, the TOP blades won't fit in it, too thick, but it comes with Yoko blades, which are a tiny bit looser around the TOP shaft pins than stock, but look like they should work, or I could just sand down the TOP blades a little bit.

Also shimming will require some tweaking I think, alignment of the diff look a shade different to the TOP micro gear diff, and number of shims will differ, the TOP diff uses two 1.5mm shims (one each side), the Yoko looks like it will need 1.5mm total, so .75mm per side, or some tweaking to get the belt alignment right.

Up side though is the Yoko diff comes as a nice package, it may be a little dearer than the SpecR but I'm impressed it comes with the yoko blades and 700 weight silicone oil, and even some black grease for the build.
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Old 06-08-2011, 06:03 AM   #7688
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Quote:
Originally Posted by Bishop View Post
My Yoko gear diff just arrived today, of interest that I noticed right away, the TOP blades won't fit in it, too thick, but it comes with Yoko blades, which are a tiny bit looser around the TOP shaft pins than stock, but look like they should work, or I could just sand down the TOP blades a little bit.

Also shimming will require some tweaking I think, alignment of the diff look a shade different to the TOP micro gear diff, and number of shims will differ, the TOP diff uses two 1.5mm shims (one each side), the Yoko looks like it will need 1.5mm total, so .75mm per side, or some tweaking to get the belt alignment right.

Up side though is the Yoko diff comes as a nice package, it may be a little dearer than the SpecR but I'm impressed it comes with the yoko blades and 700 weight silicone oil, and even some black grease for the build.
Get the associated blades --
http://racerlog.com/wiki/T.O.P._Photon#Option_1_2
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Old 06-08-2011, 06:23 AM   #7689
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Hanulec: Thank you for the link!
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Old 06-08-2011, 06:57 AM   #7690
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Default ball diff

hanulec
what is the theory/benefit of building the ball diff this way ???

Ball Diff
Install only four cone washers in the diff half like this: ")()("
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Old 06-08-2011, 07:06 AM   #7691
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The ball diff thing was something Larry mentioned a year or so back. I don't remember Tue context
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Old 06-08-2011, 08:08 AM   #7692
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Wow the fit of the Yoko diff is so borderline, the BD5 has thicker spacing out on the gears off the spur, meaning the diff pulley sits further out, big problem with that is in multiple areas, you 'have' to shim the yoko diff off it's true center (right now I'm like .9mm one side and .4mm on the other), and even then the diff is nearly touching the chassis on one side, with the right side diff blade coming close to binding up, also the belt alignment is not ideal, or marginal.

Diff is a little tight right now (still got the original TOP .3mm shims in the bearing carriers), so I'll try dropping to .8mm and .3mm, I'm a little worried about the belt being hard against the guides, but I know there is a .2mm shim on the spur layshaft I can adjust on the left side, so less belt side rub if I tweak that.

Couple of notes, I'm on a foam tyre setup, with 3deg camber or so on the rear, which is partly why the diff blades are so close to binding, but also I know the Yoko runs 44mm rear shafts, .5mm shorter than the TOP, makes me wish I had bought some Yoko rear shafts, maybe worth a try by someone at some point.
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Last edited by Bishop; 06-08-2011 at 10:25 AM.
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Old 06-08-2011, 10:37 AM   #7693
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Nope, looks like 0.9mm left side (3x0.3mm shims), and 0.4mm right side (2x0.2mm) is fine, about the same amount of side to side play as the TOP micro diff I got up front.

You can't go less on the left side, diff will rub on the chassis cut out, and belt alignment gets worse, less shim on the right works if you have the cup and shaft length space, but depends on suspension setup.

Not only did I have 3 degree or more camber, I also had less toe in than kit spec (minus the .4mm rear arm shim), but I did have a final fix to increase length for the shafts, in my parts order I had some extra suspension arm spacers (bought them to space out my servo), so in the end I threw on the .4mm shims front and rear of the arms, so I'm going to be a little wider in the rear, but I got the length now so the blades don't foul in the cups on the right side.

Final thought though, it would be nice if TOP or SpecR made us a dedicated gear diff that will run 13.5-10.5 and mod...
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Old 06-08-2011, 12:49 PM   #7694
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At first, I used the Yokomo blades which worked fine until I noticed they would always spread open. I'd replace them again with new blades with the same result. Now I use the TOP blades and sand them down to the size of the Yokomo blades and I no longer have the problem. I run mod so it puts more stress on the blades. As for shimming the gear diff, I was looking at EJ's gear diff and saw that it wasn't shimmed. It just moves from side to side. I asked him if he runs it that way and he does. Said he keeps forgetting to shim it. I told him that was crazy running it like that but it works with no problems.
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Old 06-08-2011, 10:38 PM   #7695
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Hi All!
You knew it was coming More info is up.


http://www41.instantestore.net/merch...po-chassis.cfm



Thanks for your support!
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A picture with your post, when trouble shooting, will probably get more rctech help than without...
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