robk

iTrader: (22)

5.2-5.5 fdr for 27t

CSeils

iTrader: (54)

Does anyone know where I can get a vectored image of the USVTA Trans Am logo? Just curious, thanks

smokefan

iTrader: (12)

Anybody know if there are any plans to limit the C's on lipo's?
Thanks

squarehead

iTrader: (75)

You can find an Illustrator EPS file of the logo here. My only request is that you don't stretch, skew, distort or otherwise alter the logo for any reason, and that you use it with the best intentions of promoting the USVTA.



No plans at all, as the C rating with these low amp draw motors really doesn't make a difference in performance. In the testing we did with various packs, the lap times were identical. You don't really need high C-rated LiPos until you are pulling huge amps with big motors.


Hope this helps,


doug

chicagokenji

We were talking about Trans AM performance at the track yesterday and someone mentioned average laptimes of TA versus Stock Rubber class and how close they were. We don't run stock rubber at our track. We run TA and Super Stock so I've never really paid much attention.

So...my question is, how can TA and Stock Rubber be so close in lap times if stock rubber is using an extra 3 volts? I'm thinking the difference might be an added 5000-6000 RPM at least for stock rubber motors.

You can see what I'm talking about if you look at the Hurricane race that happened this past week. The PDF of the results can be found here:

http://tinyurl.com/959qep

The C main of stock rubber:

Fast laps:
10.299
10.604
10.777
10.326
10.649
10.596

B main of TA:

Fast laps:

10.678
10.604
10.803
10.942
10.769

I consider Solara, a Chicago area driver, a pretty darn good racer. He ran TA and he ran Stock. His TA fast lap was 10.80 . His Stock fast lap was 10.06. That's not a huge difference.

I'm not trying to stir anything up but only making observations.

Is it possible that good racers have been running TA for a while now and are at the point where they've made so many little changes to their gear that they are now faster than before when TA just started? Kind of like optimized their stuff for the TA class? Or is that when driving TA they change their driving style to get faster?

squarehead

iTrader: (75)

Kenji, IMO, .8-.9 of a second a lap on a 10-second track is a LOT. It's like an 11-pound cat that loses ONE pound—that's a 10% weight loss! That's a 200 pound man losing 20 pounds! It's no small chunk.

Eight tenths is a big difference in my book, but you are really only talking about a change from 21.5 motors to 17.5 motors, plus sticky narrow tires and aero bodies/spoilers. This should prove to people that the body a week, tire a week, motor a week, battery a week game is fruitless, pointless and plain ol' dumb to play.




I think the fact is that most T/A racers are getting the point that fast laps on the track are more from driving and setup than pure horsepower and how much you spent on your equipment.

Solara

iTrader: (17)

First...using me as an example..........WRONG LOL, I ate way to much egg roll (4 total) and thats why I am slow afterall...LOL

Kenji....yes, if you are comparing the lap time, the different is very little. HOWEVER, I can garantee you this, my TA car never handle as good as my stock rubber car, simply because of the body and the tires...and that makes that 1 second different on the lap time. And only IF I can make my TA handle (feel) as good as my stock rubber tires car, then my TA lap time will be 10 flat..Also, most FAST TA guys are all using 21.5 7.4 lipo...and 21.5 motor are getting more efficiient then last year.

I can only say...21/lipo just get the TA car faster...in the near future, the newer and faster 21.5 will only get the TA car faster...then the different will be like 3/4 second to 1/2 second different per lap.

The last Hurricane race...I have both GOOD TA car and Stock rubber cars...TA ran around 10.8 and my rubber car ran 10 flat (other ran 9.7 9.8..)...1 second per lap is a BIG different in 1 5 minutes race, just not so big of a different on our watch.

Also...Super Stock, 13.5 it is like 0.8 to 1 sec faster to stock rubber, same ratio (concept).

One thing i was happy about this week...before I was using the different 21.5 motor and a low grade speed controller, my TA was 4 laps behind the fast guy and like 1 plus second per lap slower. This week, I am shaving to the same lap but like 1/2 seconds slower per laps. So, the 21.5 motor (Novak) and different speed controller DOES make the different, but again, it is like only 1/2 second different per lap, would you want to spend the money to improve that 1/2 second, it is up to you. The other 1/2 second per lap, is totally DRIVING SKILL. Throttle control is MAJOR in TA racing, that required tons of practice with hours of setup/testing. But at least, I don't have to worry about lipo, motor anymore.

TwoTone

iTrader: (12)

Not to be an ass, but how do you propose to do that? Trust that the manufacturers are all reporting correct C rates?

Sort of like LCD monitor response times, no set standard on reporting it, so no way to properly enforce it.

lidebt2

iTrader: (21)

Mike has a few Type Rs for different setups. As you can see Mike ran the Grand Slam Race yesterday at 360 Speedway.

These are Qualifier times:

Mike Haynes - 29/5:10.574 13.5 rubber
Mike Haynes - 24/5:01.954 Vintage 21.5/lipo

I'm not a great racer, ask anyone at 360, but I have a Type R setup TA and a second one for stock foam. To most of us, TA is a fun class, there are 5 or 6 of us that run it and more are joining us. If there aren't enough we run with stock rubber.

And to add to the fun once in a while '60's music is played. The music I grew up with.

chicagokenji

Wow! Beautiful venue! Picket fences and huge screen LCD TV's. Looks like the Kentucky Derby.

http://360-rc-speedway.smugmug.com/g...45959759_rj6oo

BadSign

iTrader: (15)

That's what I'd think. I know I started with my TC5 back in September and was running in the B-Main and bumping up sometime. Now I'm qualifying in the A, anywhere from 3rd to 7th.

I do think battery plays a part as well, especially on bigger tracks.

smokefan

iTrader: (12)

Just asked a question before I spend any money on a lipo.lol

lidebt2

iTrader: (21)

This was the track layout:

DARKSIDE

iTrader: (2)

we had our 1st annual THUNDER JAM 2009...which turned out to be a very good warm-up race for the BIRDS...some of our racers will be attending....

but what was found out this Sunday...is that Trans-am racing can and should be even, no matter what you run....we had top notch drivers using different combos and chassis

TC3 17.5/lipo fdr
Corrally 17.5/4cell
XRAY 009 21.5/lipo & 17.5/lipo fdr
TC4 27/lipo fdr
TC3 21.5/lipo (HAVOK)
XRAY T1 21.5/lipo
HPI Sprint 2 27/lipo fdr
Tamiya TT01 21.5/lipo
Yoko(old) 21.5/lipo
Xray 007 21.5/lipo

and many more...with very close lap times and finishes....many lead changes and alot of FUN....bottom line is that this class isnt about motors, chassis, batteries or anything close to it...its about using what you can afford and racing against good ppl...and having fun...our race director said it best

"FAIR FUN CHEAP"

________________________Driver___Car#____Laps____R aceTime____Fast Lap___Behind_
Myron Kinnard(TC3) #1 32 8:02.247 14.142
Robert Dirla(CORALLY) #2 32 8:10.804 14.318 8.557
Justin Lyons(XRAY 009) #6 32 8:12.621 14.106 10.374
Donald Martin(TC4) #3 31 8:09.189 14.221
Darryl Bingner(YOKO) #4 31 8:10.466 14.746 1.277
Danny D(TC5) #5 30 8:11.950 14.655

Kregger

iTrader: (2)

1 1 Mike Haynes 37 / 8:13.033 11.915 1 24/5:01.954
2 2 Steve Sohl 37 / 8:13.377 12.039 2 24/5:05.622
3 3 Kregg Kerr 36 / 8:02.233 12.465 3 23/5:04.163

I'm not really sure that higher end speed controllers make any difference in VTA. These were the top 3 finishers in the Grand Slam race that Lidebt2 mentioned before (yes I'm the third person). All three of us were using different ESC a Speed Passion, LRP and I was running the novka XBR (Havok equivlent). To be perfectly honest if it wasn't for the massively bad traction rolling issue I had when traction really came up, Steves lap times and mine were pretty close. I also haven't noticed any difference when I use my XBR Vs. my Tekin.