Hi Guyz,

              Recently i brought a TT sparrohawk DX, but it  doesn't drift as expected. i came to know that the diff should be locked to have
              a better drift.
              Guyz please help me on this-----How to lock the back differential? is there any addon to implement?

Lots on interesting links !

Using a piece of glow fuel tube : http://www.rcspares.com/drift-rc/lock-your-TT01-differential.html

Lots of techniques : http://sflrcdrift.com/yabb/YaBB.pl?num=1172447832/0

BTW, I will wait for the true car guys to respond... please do not take any steps before you hear from them.

On the traxxas summit,you can lock the different differentials via the radio itself.Looks like you do not have any mechanism like that.

If it is a 4wd(which I believe it is),it should drift easily.Just hit a high speed,hit full brake and turn simultaneously.And also,if you do not have slicks,put some tape on your tires.

Thank you guyssssssss................

hi,

   i found other addon -- Solid Axle available in TT partlist.
   even though it costs couple of 100,  its a wise replacement for diff.

Quote from: iamahuman on November 20, 2010, 05:38:27 AM
On the traxxas summit,you can lock the different differentials via the radio itself.Looks like you do not have any mechanism like that.

Summit locks are different. They are like gears of real cars, one for low speed high torque, other for high speed and intermediate torque.
The lock this guy is tocking is something else.

Rather than locking the differential which is a real difficult task(atleast for me) i would suggest you to go for a spool if availabe. That is exactly what u want.

The other thing you can do is get a 19T TTr motor which might cost around Rs. 700 which will provide more acceleration to you.
Going for a BL motor will be even better
Also drift depends where you run your car so keep that in mind and try some plain floor rather than concrete or asphalt.

So the lock on the summit is for shifting.But I have seen diff locking on rock crawlers.

Quote from: iamahuman on November 20, 2010, 07:04:55 PM
So the lock on the summit is for shifting.But I have seen diff locking on rock crawlers.

I don't think differential lock is for shifting but normally used at very low speeds. Differential lock prevents the free rotation of one wheel when the other one is under load.

Yeah.It allows for a tighter turn especially when rock crawling.

Quote from: iamahuman on November 20, 2010, 07:04:55 PM
So the lock on the summit is for shifting.But I have seen diff locking on rock crawlers.

Summit gives you the ability to lock the differentials and shift from low to high gear right from the transmitter"


Summit can do both.
one is low gear for a 70:1 ratio and high range" with a 25:1 ratio for dirt-slinging speed.
Thre is and additional switch called T-Lock which for locking differentials.

Hi guys,
I own a Losi Comp. Rock Crawler which has a DIG Unit installed on it. The DIG is a differential locking system. As also seen on the summit how this system works on crawlers is that the hobbyist can remotely from his transmitter lock either his front or rear differentials. This is essential in competition rock crawling as it enables the user to take tighter turns or to use the additional grip to climb steep gradients. I think the summit also has a module where in it can use different gear ratios and can shift between them remotely via a switch on the transmitter.
Also in the Losi Competition Crawler the wheels are always locked in neutral unless you apply forward/reverse. I believe this is the case in all crawlers. This enables the crawler to hold its position on any kind of gradient even in neutral unless the user wants the little lizard to move forward or backward.
Its fun using the DIG actually. somethin you dont really see in 1/10 or 1/8 buggies.

Guys, the spool and addons are more expensive option. I had responded to this on the other forum. You can use heavier diff oil and naturally lock the diffs to get drifting action. Summit uses a crawler type diff lock system, I think.

or try the fuel tubing method which anwar mentioned. Its easier and you can revert to your old setup faster.

ya nice idea ajo, i used 7k and 10k for rear and froont