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Old 01-09-2009, 11:19 AM   #136
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Question for the guys running TA05's. Any of you using the the tub chassis and how much does your car weigh in race trim? I don't remember my car being heavy before I coverted it, but now it is 1608g. I have no weight in the car and want to balance it, but with it being that heavy I don't want to add mor weight.
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Old 01-09-2009, 04:24 PM   #137
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Originally Posted by JCarr View Post
Question for the guys running TA05's. Any of you using the the tub chassis and how much does your car weigh in race trim? I don't remember my car being heavy before I coverted it, but now it is 1608g. I have no weight in the car and want to balance it, but with it being that heavy I don't want to add mor weight.
I use the tub graphite chassis and my car comes in slightly under 1600 g (1583 I think). I still have to add a couple of more grams to balance out the Lipo side. Yours does sound a bit heavy though if you haven't added any weight to it.
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Old 01-09-2009, 05:57 PM   #138
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Originally Posted by JCarr View Post
Question for the guys running TA05's. Any of you using the the tub chassis and how much does your car weigh in race trim? I don't remember my car being heavy before I coverted it, but now it is 1608g. I have no weight in the car and want to balance it, but with it being that heavy I don't want to add mor weight.
My TA05R come in at around 1450 with 21.5 Lipo using Orion 3800 carbons.
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Old 01-09-2009, 06:00 PM   #139
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I have a question about the 21.5 motor and my ESC. I have a SpeedPassion so it has some setting I'm not sure of.

What would you set the DRRS start mode to?
What would you set AMTS timing to?
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Old 01-10-2009, 06:33 AM   #140
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Drrs 6 timing 8
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Old 01-10-2009, 05:08 PM   #141
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Originally Posted by JCarr View Post
Question for the guys running TA05's. Any of you using the the tub chassis and how much does your car weigh in race trim? I don't remember my car being heavy before I coverted it, but now it is 1608g. I have no weight in the car and want to balance it, but with it being that heavy I don't want to add mor weight.
Mine is at 1500 grams -- which includes 1/2 oz. of lead added.

I have the plastic chassis.
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Old 01-10-2009, 10:29 PM   #142
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I will be setting up a TC3 for VTA very shortly. I'm buying my buddy's old TC3 this weekend. I have the body (Mustang GT-350) and Rx for it already, just waiting for Novak to have their Havoc combo in stock.........

I will be running the 21.5/Lipo option using the Novak Havoc combo.

I have a NTC3 but am new to the TC3, can anybody tell me what spur/pinion I should start with?

Any other setup info greatly appreciated. I have saved all the TC3 stuff from this thread I could find.
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Old 01-11-2009, 07:05 AM   #143
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Default TC3 gears

Dan, I have an old TC3 I run in VTA. I use a 69 tooth spur and 31 tooth pinion. This gives an FDR of 5.56 which works good for me.
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Old 01-11-2009, 10:06 AM   #144
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For the TC3, if you use 64 pitch gears and an 80 tooth spur (or smaller) you should be able to use up to a 47 pinion (80/47*2.5= 4.255 FDR) without having to dremel the chassis under the pinion gear. Personally I've had good results running an 84 spur and up to a 50 tooth pinion (4.2 FDR - max allowed), but you will have to dremel the chassis.

The 69/31*2.5 = 5.56 FDR using 48 pitch is more appropriate for running 4-cell/27t motors. If you are going to run 21.5/lipo you at least want to start out at 4.5 FDR depending on your track rules (some limit max FDR), track size, and setup.

The 69 tooth 48 pitch gear is equivalent to a 92 tooth 64 pitch gear. (http://www.robinsonracing.com/tips.html). If you already have 48 pitch pinions, you may want to base your spur purchase on that. Robinson does sell a 60 tooth 48 pitch spur. 60/35*2.5=4.28 FDR
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Old 01-12-2009, 08:39 AM   #145
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Thanks for the replies, guys. I'll have to look at smaller electronics to get my weight down. For my loose rear end problem I already had the rear camber links in the long position so I just removed the rear swaybar. Problem solved, the car sticks like glue now. Thanks guys for the help.
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Old 01-12-2009, 09:31 AM   #146
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Default Balancing weight ??

How do you determine how much extra weight to add to the battery side of the car to balance it when running LiPo ??

Obviously you want to add as little as possible, but how exactly do you determine how much to add ??

FYI -- I run a TA05-R.

Thanks
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Old 01-12-2009, 10:53 AM   #147
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Originally Posted by Parnelli View Post
Dan, I have an old TC3 I run in VTA. I use a 69 tooth spur and 31 tooth pinion. This gives an FDR of 5.56 which works good for me.
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Originally Posted by IndyRC_Racer View Post
For the TC3, if you use 64 pitch gears and an 80 tooth spur (or smaller) you should be able to use up to a 47 pinion (80/47*2.5= 4.255 FDR) without having to dremel the chassis under the pinion gear. Personally I've had good results running an 84 spur and up to a 50 tooth pinion (4.2 FDR - max allowed), but you will have to dremel the chassis.

The 69/31*2.5 = 5.56 FDR using 48 pitch is more appropriate for running 4-cell/27t motors. If you are going to run 21.5/lipo you at least want to start out at 4.5 FDR depending on your track rules (some limit max FDR), track size, and setup.

The 69 tooth 48 pitch gear is equivalent to a 92 tooth 64 pitch gear. (http://www.robinsonracing.com/tips.html). If you already have 48 pitch pinions, you may want to base your spur purchase on that. Robinson does sell a 60 tooth 48 pitch spur. 60/35*2.5=4.28 FDR
Thanks a bunch guys!

This helps tremendously. I picked up my TC3 chassis Sunday and will be pre-ordering a Novak Havoc 21.5 combo today.
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Old 01-12-2009, 11:03 AM   #148
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Originally Posted by TeamGoodwrench View Post
How do you determine how much extra weight to add to the battery side of the car to balance it when running LiPo ??

Obviously you want to add as little as possible, but how exactly do you determine how much to add ??

FYI -- I run a TA05-R.

Thanks
With a scale or scales. The most accurate way is to use 4 small scales, 1 under each wheel. You can find these on amazon for example for about $10 each.

I use one scale, because I already owned it. It's an accurate digital scale with a platform large enough to hold 2 of the car's wheels. I place 2 wheels on the scale with the other two supported on little stands that keep the car level. That way, I can get the front weight vs. the rear weight as well as the left/right weights. With a little work you can find just the right location for your weights.

Since I've been doing it a lot these days, I plan on getting the 4 individual scales to streamline the process.
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Old 01-12-2009, 11:33 AM   #149
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Originally Posted by TeamGoodwrench View Post
How do you determine how much extra weight to add to the battery side of the car to balance it when running LiPo ??

Obviously you want to add as little as possible, but how exactly do you determine how much to add ??

FYI -- I run a TA05-R.

Thanks
The right way to do it is 4 scales and get all 4 wheels to weigh out where you want them while trying to stay as light as possible. I've had better luck just trying to get the car to balance from side to side and a 40/60 balance with the 60% being in the rear. That's why Jim's old TC3 was/is so dominant, it was light and had more rear weight.
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Old 01-12-2009, 12:20 PM   #150
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Can you guys post a link to the ~$10 scales you're using?

I will be needing to do this in the near future. I have a pretty decent digital scale now and may just "work it" to get front/back & side/side numbers.

BTW, I spoke with Novak tech support today re the Havoc ESC vs the GTB. He said that the only real limitation of the Havoc controller comes with the lower turn motors, the min turn motor for the Havoc is 8.5 so I don't see any "real" problems for this class. I also decided to order the optional cooling fan for it. Maybe it's overkill but cooler operating temps for any electronics is a good thing.

Hopefully they start shipping soon.
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