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Old 07-31-2012, 10:49 AM   #1456
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Originally Posted by JKyte5 View Post
I need help fellas. Im running vta at my local track and am getting smoked coming out of the corners and in the straight. Im running a 25.5 Ballistic and a GTB esc. My pinion is a 49 and my spur is an 80. These guys are killin me speed wise. Im not a great driver but at tha same time i dont run into tha walls or crash people all tha time either, just descent i guess. Any ideas on why my car is so down on speed????? Any suggestions????? Running a good 2s lipo recalibrated my esc to default and all my settings on my controller are at full blast and still no speed........Please help with a checklist of things yall think it might be......thanks
The guys have all given you good suggestions for places to look at to find if something may be mechanically wrong with your car.

I would add a few more as well as a few observations.

Some of the fastest TC3/4's that I have seen do not run anywhere near the FDR of a belt drive car, on average size tracks, due to the added rolling weight of the drive line. (something to consider when gearing your TC3)

There can be up to 1000 rpm difference between motors when at full timing if not more, at the sacrifice of efficiency and then more heat.

I would consider putting your GTB2 in the VTA car as well to make sure that there is nothing wrong with your current esc.

Your tires, older tires that have a considerable amount of runs on them and lots of sauce will have a larger diameter versus new. The older tires will have more top speed,and potential corner speed versus a new set because of the roll out and side wall flex.

Is your car weight biased to the front or rear? Front bias has a tendency to understeer/push, while rear biased can become rear loose as the weight swing through the apex.

Is your car's wheel base full long, long front, short rear, long rear? These can and will effect forward bite,steering,side bite, etc.

The angle of your links in realtionship to the cvd's will and can also effect all of the above as well.

Lots of food for thought, didn't directly answer your questions but another direction to look.
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Old 07-31-2012, 12:13 PM   #1457
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76 tooth spur / 52 tooth pinion gets you a 3.65 FDR. The only modification you possibly have to make (not sure its been so long) is to take down the chassis webbing directly beneath the pinion if it rubs or binds.
Would he need to run any timing with that?
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Old 07-31-2012, 12:22 PM   #1458
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Would he need to run any timing with that?
It's going to depend on the track and conditions. I was just throwing that out there because of the statement that it is "difficult" to get a TC3 lower than a 4.0:1 FDR. I run that gear ratio with 45 degrees of timing at some tracks, but it depends on the layout and how hot it is outside. Should have pointed out that I was speaking in terms of 64 pitch gears as well.
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Old 07-31-2012, 12:53 PM   #1459
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Would he need to run any timing with that?
I'm seeing that ratio run at full timing on carpet here.
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Old 07-31-2012, 07:06 PM   #1460
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I am running a Yokomo SD which is essentially their upgrade for TC3 users back in the day. Its a very similar car. I am aiming for indoor carpet (Southern Nats at Thunder RC) with AC running so it should be nice and cool in there. Thanks for the multiple views on this. I havent really raced since One lug earlier this spring so I will be super rusty. As always.
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Old 08-01-2012, 12:13 PM   #1461
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I can't wait to hear about the blue esc that is being tested. I have been told BLUE IS BETTER. I hope its not to much better that it won't make it through.
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Old 08-01-2012, 07:12 PM   #1462
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Default VTA at SMA in Australia...

Thought I'd share few VTA pics from our club SMA (Sydney Model Autosports) in Australia http://www.smaracing.org . We run the same rules as USVTA except with 21.5 motors instead of 25.5 and allow a few extra bodies such as the '78 Firebird and Australian muscle cars. Racing is outdoors under lights every tuesday night, with a few sunday meetings too. We ran VTA oval last weekend for a laugh, man it rocked!!






























VTA @ SMA by Leigh Nelson, on Flickr. Leigh Nelson Copyright 2012 All rights reserved
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Old 08-02-2012, 12:09 AM   #1463
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That was awwwtummm
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Old 08-02-2012, 04:00 AM   #1464
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Very cool pics !!
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Old 08-05-2012, 05:06 PM   #1465
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Wasssssup you slackers hope some of you had as much fun as I did
This weekend
I was carpet racing @ FIRCC
All day Saturday practice
And all day Sunday racing all I can say is WOW
Carpet VTA is great gitting ready for the southern nationals
Can't wait
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Old 08-06-2012, 07:12 AM   #1466
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Any word on the new ESC testing? I really want to know how the blue one did.
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Old 08-06-2012, 08:36 AM   #1467
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it went really well...waiting on more info from LRP and since Dirla is back...Im going to do another test with his equipment...
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Old 08-06-2012, 02:53 PM   #1468
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Duplicate post.
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Old 08-06-2012, 02:53 PM   #1469
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Hey DARKSIDE, do you have one of these 1/10 scale R/C cars in your collection?
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Old 08-06-2012, 06:26 PM   #1470
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I do have this one thats gets up to 25+ mph...lights and sounds as well...it HUGE!!!

Also I have 3 smaller ones, that have the old school push button that turns in reverse
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U.S. Vintage Trans-Am Racing Part 2-img_20120806_191055.jpg  
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