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Old 03-31-2014, 04:26 PM   #10036
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Originally Posted by MX304 View Post
I just picked up a TC6 as my first entry into on-road. I'll be running a carpet track with the longest straight being 110' long. What would be a good place to start with gearing running an 8.5t non-boosted? The spur gear currently on the car is a 96t 64p.

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I was running 8.5T boosted, FDR 6, 25 degrees motor timing, 55 degrees boost.
Without boost, I would start with FDR 5.2 and gear up if needed.
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Old 03-31-2014, 04:40 PM   #10037
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Originally Posted by Brian McGreevy View Post
For even relatively small on-road tracks, you'll want to be between 3.5-3.7 FDR, depending on the timing your motor needs to run its best. I'd recommend a spur of between 86 and 92 teeth. Pinion sizes between 46 and 52 teeth.
+1

I've been running USGT (21.5T) for a while and a 3.5 FDR is great for fast corner speed, if I ran 3.7 to 4.0 then my car would accelerate too fast and tend to be more twitchy on corner exit.

I'm currently running a 3.3 FDR (48P @ 66/40) which is the sweet spot so I can drop the hammer throughout most corners without breaking loose and maximize top speed on the straights, I'd say I'm about 0.5 - 1.0 sec faster per lap than with a 3.5 FDR where our track average is around 15-17 second laps for most drivers in this class in blinky mode at my local club to give you an idea of what our track size is on an outdoor asphalt track with medium grip.

I'm running a Turnigy TrackStar 21.5T + 3Racing cooling fan and my motor temps come off around 130 after 12min mains.
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Old 04-02-2014, 03:01 PM   #10038
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New guy here....
I need to add 200 grams for usvta. I have the associated weight set.
Can anyone post pics of their chassis for reference......
Thanks
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Old 04-02-2014, 08:06 PM   #10039
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New guy here....
I need to add 200 grams for usvta. I have the associated weight set.
Can anyone post pics of their chassis for reference......
Thanks
You want it as low and as centerlined as possible. Are you weighing the car with the body? because 200 grams seems a bit much for a 6 or 6.1
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Old 04-03-2014, 04:56 AM   #10040
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200 grams is probably close. I run my 6.1 in USGT and I had to put 80 grams on to hit 1450 grams. USVTA minimum weight is 1550 so I would need 180 grams to be legal.
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Old 04-03-2014, 06:13 AM   #10041
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I am using a 4000 mah battery instead of the allowed 5000.
I thought it might be better to add weight to the center, than the edge ie heavier battery.
The 4000 is around 70 grams lighter than the 5000.
The car is the 6.1
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Old 04-03-2014, 06:21 AM   #10042
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I would say 200 grams is about right. I'm running a TC6 and having to add a little over 100 grams and thats with a 5000 battery.
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Old 04-03-2014, 08:24 AM   #10043
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This might be a dumb question, but on this tc6 should the front slipper spool slip? The one I bought does not. I was wondering if it should. Looked at the manual all it said was to fully tighten the thrust screw.
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Old 04-03-2014, 08:50 AM   #10044
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my front spool slips a little if I apply enough pressure... so far I haven't broken any CVD's when hitting any boards in tight corners... knock on wood...literally...LOL
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Old 04-03-2014, 02:38 PM   #10045
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Originally Posted by billdelong View Post
my front spool slips a little if I apply enough pressure... so far I haven't broken any CVD's when hitting any boards in tight corners... knock on wood...literally...LOL
The slipper spool is a great design. I like using mine over the new spool as it has been far more reliable. The slipper should be tight but should give a little when you hit stuff. You kinda have to develop a feel for how tight.
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Old 04-04-2014, 12:37 PM   #10046
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Default Ball Bearing Question

Hi there,

I bought a second hand TC6.1 a while ago. After my first race I took a closer look at the car. I found out that 4 out of the eight ball bearings for the wheel shafts were broken. To my surprise these bearings were size 10x6x3 instead of the 10x5 that are mentioned in the manual I downloaded.

Does anyone know about this issue? Are the 10x6x3 bearings an older version of the car? Or a newer one? When I buy spare parts do they come with a 6mm or a 5mm shaft?

Thanks for your help

Andy
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Old 04-04-2014, 12:42 PM   #10047
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The TC6 has the smaller bearings. The 6.1 and 6.2 use the newer suspension molds. These are made for the larger bearings. I would recommend to buy the smaller bearings. If you hit the boards often buy ceramic bearings. These will last longer. Or buy the new suspension parts... Your choice
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Old 04-04-2014, 05:40 PM   #10048
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Originally Posted by AndreasHerold View Post
Hi there,

I bought a second hand TC6.1 a while ago. After my first race I took a closer look at the car. I found out that 4 out of the eight ball bearings for the wheel shafts were broken. To my surprise these bearings were size 10x6x3 instead of the 10x5 that are mentioned in the manual I downloaded.

Does anyone know about this issue? Are the 10x6x3 bearings an older version of the car? Or a newer one? When I buy spare parts do they come with a 6mm or a 5mm shaft?

Thanks for your help

Andy
The TC5 & TC6 used the 6x10 bearings. The 6.1 and later use the 5x10 for better durability. Sounds like your used car was a cross between the 6 & 6.1 (TC6.05?) You will need to change the steering blocks, rear hub carriers and axles to switch to the 5x10s. The dog-bone part of the CVA has a different part number, but the length difference is so small that it's a non-issue.
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Old 04-08-2014, 08:32 AM   #10049
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I have personally used the ZZ Titanium screws with good results and they are less expensive than the AE aluminum screws. As with any light weight screws, it is best not to over torque them as the heads strip easier than steel. Use a hi quality, well fitting driver to lessen this possibility.
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You can get titanium screws, but they are expensive:

http://www.lunsfordracing.com/mm5/me...de=CARS-ASTC61

I personally use steel screws:

http://www.zzracing.net/stainless-st...c61-p-292.html

And reduce the 10-30 grams of weight you would save some other way, such as using a light weight body shell (painted lightly also):

http://racepf.com/touring-car-190mm/mazdaspeed-6-light/
I bought some from here over a month ago and still have not received them. I piece milled a set for my 6.2 at amain, it cost me about $20 more but I received them 3 day after I placed my order.
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Old 04-08-2014, 09:45 AM   #10050
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Quote:
Originally Posted by Adonis_mp View Post
I bought some from here over a month ago and still have not received them. I piece milled a set for my 6.2 at amain, it cost me about $20 more but I received them 3 day after I placed my order.
ZZracing screws very hard.and Light Cheap
Titanium Screw Set For AE TC6.2:http://www.rzhobby.com/titanium-scre...c62-p-460.html
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