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Old 01-05-2006, 12:14 PM   #2446
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Quote:
Originally Posted by kufman
This weekend shane will not be there so we have a chance of better than the top 3 Just have to beat out the rest of the Tamiya croud, if they show up, and Sobiski. If you want me too I can go out there on friday and see if you car is there. that way we can build it before Sat practice.
That'd be cool. Maybe I'll call the track Friday and ask Ray or Jerry if the stuff's there. I don't really have an esc for it though, as I don't want to tear the GTX out of the JRX-S. I was planning to run the Losi this weekend anyway as I have some ideas to try. I'll figure something out. Oh yeah, need a body too...
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Old 01-05-2006, 12:16 PM   #2447
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I also run a RW, 104T 64P.. really thin, but mounts just fine, and is really quiet and solid. I really just grab whatever I can that's available, some others use 90/96T spurs from their 1/12 cars.
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Old 01-05-2006, 12:18 PM   #2448
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Talking RE: Diff adjustment

Quote:
Originally Posted by Teehomo
Hi all.

New to R/C and have finished building my TA05. I am still running very standard setup as I need to learn how to drive the car first. However, I have a question regarding diff tightness. I intend on running on asphalt at the Sydney SMA track (if any are familiar with it) using rubber Sorex 36R on medium inserts. Motor is a Tamiya Sports Tuned (black can).

My first impression of the car is that it is very responsive although under power the turning circle is much larger than when coasting, ie it seem to be understeering when driven through a corner. From reading through this thread the general consensus is to have the front diff tight and the rear diff loose to counteract understeer. My question is what constitutes tight and what is loose? Can anyone give me some guidance as to a starting point for diff tightness?

I've atached a photo of the Ferrari bodyshell - since it was my first I used the window stickers and now wish I had painted them in smoke. Ah well, I'm still happy with the look.
I'd like to help you answer your question if nobody else has. You can have a friend help out for the first time to make it easier for you. Have somebody hold the spur gear so it does not move. Then start with the front, hold the left tire with one hand and try to rotate the right tire. The harder it is to rotate that tire the tighter the diff is. Now do the same thing but with the rear tires lock the spur so it doesn't move then hold one tire and try to rotate the opposite tire, the tension generally should be equal from front to rear but some racers like it a little looser in the rear for more stability in driving, in other words not allowing the rear of the car to swing around too quickly in corners. So, in affect a tighter diff in the front will seem to take away some steering. Somebody suggested to buy a XXX main set-up book. It is very valuabe to guide you on how to dial or tune you car and help you understand what the cause and affect of the adjustments you make. This is a great book for anyone getting started in RC cars whether it's Sedans or offroad!
It really comes down to transfer of weight and traction from the front to rear when you adjust for understeer or oversteer. This is also referred to as a car that pushes or is loose in or out of corners. I hope I have been of some assistance in your quest for the perfect set-up!!!!
Good luck! Don't forget to "Have Fun"!
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Old 01-05-2006, 12:25 PM   #2449
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I am looking for a blank set up sheet for the TA 05 for our track... I know it's out there somewhere.
Any links?
thanks much
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Old 01-05-2006, 12:47 PM   #2450
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Here's one..

http://tamiya.com/japan/products/58358essota05/ta05.pdf
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Old 01-05-2006, 02:26 PM   #2451
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thank you! much appreciated
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Old 01-05-2006, 03:39 PM   #2452
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Quote:
Originally Posted by DA_cookie_monst
Dark, I am currently running an RW spur, narrow, white and a 78 tooth 48dp version, see attached image (excuse the quality, couldn't be bothered getting the camera out)
Well thats cool. I had heard several times here on this thread that they just wouldn't fit. Did you have to do any modding or was it a straight fit?

If it was a straight fit then I would love to go back to running RW gears.
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Old 01-05-2006, 03:57 PM   #2453
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Went on, straight fir, same one I used to use on the RC Lab, it has the ubiquitous universal fitting on the TA05.
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Old 01-05-2006, 05:20 PM   #2454
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Cool! I know my local track carries RW, so I'll check the wall when I go racing this weekend and see if they have a size I can use.
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Old 01-06-2006, 12:29 AM   #2455
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What pitch does the TA05 use? doesn't seem to be a 48 and definitely not a 64 pitch?

Thanks,
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Old 01-06-2006, 12:47 AM   #2456
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Quote:
Originally Posted by f2000racer
What pitch does the TA05 use? doesn't seem to be a 48 and definitely not a 64 pitch?

Thanks,
it's tamiya AV pitch
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Old 01-06-2006, 05:28 AM   #2457
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Quote:
Originally Posted by dodo
it's tamiya AV pitch
Actually it's 0.6 module pitch, which is metric gearing, as opposed to the imperial 32, 48, 64 pitch.

The Avante was the first tamiya car to use this 0.6 module pitch, hence the "AV" tag on their pinions
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Old 01-06-2006, 08:27 AM   #2458
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It comes with a 75 tooth .6 spur gear, and a 105T .4 spur is available as a hop-up from Tamiya

Thankfully they're not proprietary like the TB-02's spurs, and any spur you can find will work (within size limits), like regular 48 or 64 pitch.

What broke the camel's back for me to switch were the soft aluminum AV pinions they give you, and the limited gearing of the 75T spur. The fact I had 1/12th 64p stuff also helped.
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Old 01-06-2006, 03:05 PM   #2459
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Thanks for all the info.

This is quite a "history" lesson

It's good the TCS rules allows the use of other makes for the spur and pinion.


Quote:
Originally Posted by bender
Actually it's 0.6 module pitch, which is metric gearing, as opposed to the imperial 32, 48, 64 pitch.

The Avante was the first tamiya car to use this 0.6 module pitch, hence the "AV" tag on their pinions
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Old 01-06-2006, 10:40 PM   #2460
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Default nomenclature

actually "0.6 module" refers to the way the tooth size is calculated, its essentially "48 pitch", except tamiya's gears are metric. so, technically, you could say that regular 48 pitch gears are "imperial 0.6 module".
you'll find that tamiya's 48 pitch gears do not mesh perfectly with regular 48 pitch gears (close, but not exact).

on a similar note, their new chassis is called the 415MS Refine 2, OTHERWISE known as the 415MSX, but it would be misleading to be called the msx refine 2.
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