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Old 02-07-2014, 12:21 PM   #3646
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Thanks for the tips
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Old 02-07-2014, 01:32 PM   #3647
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Anyone tried a rear ball diff yet? How was it?

Last edited by pullstarter; 02-07-2014 at 03:09 PM.
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Old 02-08-2014, 05:58 AM   #3648
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my BD7 2014 rear diff is all stock,stock o-rings,stock shims,and diff cup rim a bit of sanding on 400grit and never leaks.

Has anyone tried a front center diff instead of the spool on the front?
reason why I ask is because I run VTA and with hpi threads they dont turn or grip well on corners,maybe with a front diff it might turn better.Any advice will be good.Thanks.

btw,the new bd7 drives well.First vta race qualified 2nd,got hacked twice on final, finished 3rd.
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Old 02-08-2014, 06:12 AM   #3649
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Quote:
Originally Posted by joms View Post
my BD7 2014 rear diff is all stock,stock o-rings,stock shims,and diff cup rim a bit of sanding on 400grit and never leaks.

Has anyone tried a front center diff instead of the spool on the front?
reason why I ask is because I run VTA and with hpi threads they dont turn or grip well on corners,maybe with a front diff it might turn better.Any advice will be good.Thanks.

btw,the new bd7 drives well.First vta race qualified 2nd,got hacked twice on final, finished 3rd.
There are some set-up's using front gear diff filled with putty like this one from the last years ETS finale from Volker. The cars were pushing in corners so the putty diff gave a bit more steering. You also may try with 1M or 2.5M oil.

http://www.petitrc.com/reglages/yoko...cin2013071921/
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Old 02-08-2014, 07:59 AM   #3650
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Quote:
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Anyone tried a rear ball diff yet? How was it?
Check back a page or two on my post
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Old 02-08-2014, 09:04 AM   #3651
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Quote:
Originally Posted by Geberit View Post
There are some set-up's using front gear diff filled with putty like this one from the last years ETS finale from Volker. The cars were pushing in corners so the putty diff gave a bit more steering. You also may try with 1M or 2.5M oil.

http://www.petitrc.com/reglages/yoko...cin2013071921/
I tried frnt diff with 2.5 million at snowbirds. The car was .1 to .2 sec slower than with*the spool.
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Old 02-08-2014, 10:24 AM   #3652
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I tried frnt diff with 2.5 million at snowbirds. The car was .1 to .2 sec slower than with*the spool.
This is my experience too on carpet with putty diff! On some occasions when racing on asphalt i't was faster then the spool ... You just have to find out for yourself
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Old 02-08-2014, 10:36 AM   #3653
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With a front diff, I always feel like corner entry is a bit better at the expense of some corner exit. Always depends on your setup of course.
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Old 02-08-2014, 12:43 PM   #3654
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Quote:
Originally Posted by Bar View Post
Check back a page or two on my post
Cheers
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Old 02-08-2014, 07:49 PM   #3655
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hey jimmy i got a yokomo bd7 black edition on its way to can wait to try it out it was a surprise gift from my wife while i was at the birds now im gonna have to take back all them hatefull things i said about her now lmao
How you doing Joey? Haven't heard from you in awhile. Where have you been racing? Bush River? I'd like to try that place out sometime. My BD7 has been doing good once I figured it out. Sold it to my friend who was gonna buy an RS and I just got the Black Edition yesterday and I'm building it now. They say it's no longer a limited release.

Anyways, pay attention to the diff. They can be inconsistent and the cause of many problems (handling for example). I've built 3 diffs and each one was different. They are not smooth like Tamiya gear diffs. With the gear diff apart and the outdrives pinned in place with the washer and oring, make sure they spin smoothly with no binding. I switch the black kit orings for Kyosho red orings and they spin free'r. Anyways, enjoy the kit! I should have mine done for tomorrow's race. I'll be running my old setup from my Blue BD7 and compare the two.
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Old 02-08-2014, 10:05 PM   #3656
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Just did the upgrade one of my BD7's. Man this thing is awesome. It's amazing on how good the stock kit setup is out of the box.

Just a heads up I have everything in blue not black so I will be selling my roller and new in box Black Editions. PM if your interested.
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Old 02-09-2014, 01:18 PM   #3657
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Just out of curiosity, has anyone tried using the steel gears in the gear diff? thoughts of it?
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Old 02-09-2014, 02:47 PM   #3658
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Just out of curiosity, has anyone tried using the steel gears in the gear diff? thoughts of it?
Yeaaa the steel gears work perfect i use the ones from bmax2

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Old 02-10-2014, 04:17 AM   #3659
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has anyone tried 2014 in asphalt? Setup for technical track with good grip?
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Old 02-10-2014, 08:08 AM   #3660
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Originally Posted by TMG4EVOII View Post
has anyone tried 2014 in asphalt? Setup for technical track with good grip?
This works well for our indoor track in the Philippines:

5.2F/5.2R mm ride height. Low Diff position, Ackerman 1mm, Bump Steer 0.5mm

Front
Spring Ride Red 3rd hole,
Camber link length - short
Inner Camber Link 0 mm spacer,
Camber -1.5,
Outer Camber link, 1 mm,
Droop 6.0
Front suspension blocks,FF 3.5 FR 3.5
Toe = out 0.5,
Sway bar 1.3

Rear

Spring Ride Red 2nd hole,
Camber link length - short
Inner Camber Link 0.5 mm spacer,
Camber -2,
Outer Camber link, 1 mm,
Droop 4.5 ,
Toe = 3 **RF 2.0, RR 6.4 ,
Sway bar 1.2

**plastic arms/graphite knuckles
*shock oil 400-500 using 1.1 (black) pistons
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