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Old 03-07-2011, 10:53 AM   #1
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Default Center diff locker for RC8 based vehicles?

before anyone starts in about adverse handling etc etc blah blah....


i have an SC8e that i am doing speed runs with{trying to break the 78mph record}


my issue is, the front tires unloading, thicker center diff fluid has helped, but not enough...

any companies out there make an insertable locker? or is jb weld going to be my best bet?
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Old 03-07-2011, 11:05 AM   #2
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Fioroni Tractive IV Center Differential. Although it is $190, so if speed runs are all you use it for, jb weld would be a much cheeper option.
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Old 03-07-2011, 05:22 PM   #3
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Pack the center diff with silly putty. No, I'm not kidding. I've heard of rc rock crawlers using this.

http://www.crayolastore.com/product_...=silly%20putty


Pack it tight so it gets between the center gears and locks everything. The nice part of using silly putty, it is a non permanent mod. The silly putty can be cleaned out and the diff returned to normal operation.
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Old 03-07-2011, 07:51 PM   #4
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Quote:
Originally Posted by Mr. Revo View Post
Fioroni Tractive IV Center Differential. Although it is $190, so if speed runs are all you use it for, jb weld would be a much cheeper option.
i debated buying those for my sc8e that i race at the track...but 190 a diff is NUTS. the one im doing speed runs with, is purely a street truck, its as low as it will go right now, with stock sc8 tires, im debating on going with foams, or belted rubber onroad tires...

Quote:
Originally Posted by SpraydbySprague View Post
Pack the center diff with silly putty. No, I'm not kidding. I've heard of rc rock crawlers using this.

http://www.crayolastore.com/product_...=silly%20putty


Pack it tight so it gets between the center gears and locks everything. The nice part of using silly putty, it is a non permanent mod. The silly putty can be cleaned out and the diff returned to normal operation.
ive known about this, used it back in the day in some vehicles

ill give it a shot i suppose, ill grab a spare diff off tech or ebay and pack it full..

i did some speed runs today and got 68mph, its got wayyyyy more in it, but the front diff unloads, baloons the tires, and either makes it wheelie because air gets under the body, or the tires tear up the rollcage/mudgaurds.
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Old 03-07-2011, 08:00 PM   #5
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Quote:
Originally Posted by SpraydbySprague View Post
Pack the center diff with silly putty. No, I'm not kidding. I've heard of rc rock crawlers using this.

http://www.crayolastore.com/product_...=silly%20putty


Pack it tight so it gets between the center gears and locks everything. The nice part of using silly putty, it is a non permanent mod. The silly putty can be cleaned out and the diff returned to normal operation.
Works good did it when i raced oval.
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Old 03-08-2011, 08:12 AM   #6
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Just put JB Weld in the center diff as was recommended a few posts up.
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