295LikesTamiya mini cooper
08-06-2009 | 11:11 PM
#9753
Austin, stick with the Tamiya diffs. They work and they're "legal."
Calvin, I'm buying the loose tires. They come with a cheap, soft foam insert that seems to work well enough. It would be interesting to see how they work with different inserts though.
Jim
Calvin, I'm buying the loose tires. They come with a cheap, soft foam insert that seems to work well enough. It would be interesting to see how they work with different inserts though.
Jim
08-07-2009 | 03:44 AM
#9754
Tech Initiate
Joined: Jul 2009
Posts: 39
From: Uk
Regarding ball diffs I have found that they might start off smooth and tight when first assembled, with or without extra cone washers, 1150 bearing etc. However after a few runs they becomenotchy, not sure why this is but it has happened to most of mine, even when using lots of anti-wear grease. Perhaps the balls get flat spots when they tensioned down. This is using only the balls provided in the ball diffs.
I am trialling a tight gear diff for now. This appears to remain smooth after many runs.
Calvin.
I am trialling a tight gear diff for now. This appears to remain smooth after many runs.
Calvin.
08-07-2009 | 06:47 AM
#9756
Tech Master
Joined: Jan 2003
Posts: 1,633
From: Auburn, WA
I did work experience at school with Titan motorsport. They make car performance parts and when i was there i found that normally its the other way round. The system will run better after being run not when brand new because there are machining tolerances when things are made. When the parts are assembled they may be 0.1mm too big which may not seem like alot of difference but with car parts and all the tolerances adding up it can be quite a difference. When the parts are run a couple of hundred revs such as when you start the engine the parts will wear themselves out and fit perfectly and run smoother. Perhaps on this smaller scale they dont wear and run in properly compared to full size cars and almost jam up a bit. I dont know much about mini racing but maybe if you continue to run your rougher diffs they might smooth out again as they wear down.
But in a ball diff for any RC car, it seems to get grittier over time and loose it's smooth action. this may be because a any small grit can get into the ball diff. and even a .001 mm difference could be felt.
08-07-2009 | 08:31 AM
#9757
sim600,
With the standard MO5 kit using the plastic front knuckles you only use a short 5mm ball stud.
It is only when you fit the Alloy MO5 front knuckles that you have to use the tall 5mm ball stud. This is because the MO5 alloy knuckle is the same as the MO3R knuckle.
The plastic MO5 knuckle is of a completely new design and has the arm located towards the top of the knuckle.
Regards,
Calvin.
With the standard MO5 kit using the plastic front knuckles you only use a short 5mm ball stud.
It is only when you fit the Alloy MO5 front knuckles that you have to use the tall 5mm ball stud. This is because the MO5 alloy knuckle is the same as the MO3R knuckle.
The plastic MO5 knuckle is of a completely new design and has the arm located towards the top of the knuckle.
Regards,
Calvin.
is it confirm the m03r knuckle its the same as a m05pro? if that its the same, than i don need to get another pairs of those. thanks for the feedback.
becos they both have different parts number
08-07-2009 | 02:05 PM
#9759
Jim,
Thanks for the info on the three racing tyres. Might have to try a set for carpet.
edwintklee,
Yes they are the same knuckle. The extra parts in the packet are different. The MO3R front knuckles come with steering linkages, the MO5 do not.
Mini Racer 95,
Yes 3Racing make an aluminium front and rear lower arm for a MO3. Part numbers: MO3M-03/LB Front: MO3M-10/LB Rear.
Or you can get Spice/Tech Racing one piece plastic arms: Spice Part No SPT-303. This comes with two front and two rear arms.
The only consideration is that some events will not let you run these parts as they are not made by Tamiya as a Hop up.
Regards,
Calvin.
Thanks for the info on the three racing tyres. Might have to try a set for carpet.
edwintklee,
Yes they are the same knuckle. The extra parts in the packet are different. The MO3R front knuckles come with steering linkages, the MO5 do not.
Mini Racer 95,
Yes 3Racing make an aluminium front and rear lower arm for a MO3. Part numbers: MO3M-03/LB Front: MO3M-10/LB Rear.
Or you can get Spice/Tech Racing one piece plastic arms: Spice Part No SPT-303. This comes with two front and two rear arms.
The only consideration is that some events will not let you run these parts as they are not made by Tamiya as a Hop up.
Regards,
Calvin.
08-08-2009 | 03:27 AM
#9762
08-08-2009 | 04:24 AM
#9763
08-08-2009 | 06:19 AM
#9765
Carpet tyre question
On carpet I use the Tamiya radial S-Grip (front #50684) & M-Grip (rear #53254) with success.
I'm curious to know how the Tamiya slicks perform on carpet because I happen to have a set of Tamiya Super Slicks (#53222), 60D slicks Type-A (#53340) & a set of slicks which look smaller in diameter #53215.
Can someone tell me please if they have had any luck on carpet with these slicks and maybe if they are perhaps similar to the above mentioned radials I use?
John
I'm curious to know how the Tamiya slicks perform on carpet because I happen to have a set of Tamiya Super Slicks (#53222), 60D slicks Type-A (#53340) & a set of slicks which look smaller in diameter #53215.
Can someone tell me please if they have had any luck on carpet with these slicks and maybe if they are perhaps similar to the above mentioned radials I use?
John