R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 03-26-2013, 10:53 AM   #4471
Tech Fanatic
 
Join Date: Jan 2004
Location: Elyria, Oh
Posts: 844
Trader Rating: 3 (100%+)
Default

Just remember that some drivers are smoother than others. Check your lap times and motor temps and go from there.

chuck
mackin is offline   Reply With Quote
Old 03-26-2013, 11:57 AM   #4472
Tech Addict
 
Tommy R's Avatar
 
Join Date: Mar 2011
Location: Austin, TX, USA
Posts: 625
Trader Rating: 19 (100%+)
Default

Quote:
Originally Posted by beemerfan View Post
I experimented with this last year during the ROAR Nats in Joliet, IL. after watching another car find some new speed by doing the same thing. The track layout made the straight away roughly 180 feet. I compared 2.98:1 at the stock 30 degrees of timing to 3:27:1 at 45 degrees. The numbers are to the best of my recollection because I lost my notes. The lap times were about the same but I remember the motor being slightly cooler, maybe 5 degrees with the 2.98 and stock timing. The temps stayed under 130 either way using a fan. Ultimately, I ran with the higher timing and shorter ratio because the car just felt better to me. Could just have been a "mental" thing too.
Quote:
Originally Posted by Shawn68z View Post
I have been playing with gearing and motor timing a lot lately too. And sometimes having the power from the motor at the right time is everything. I have been setting my cars up with higher FDR (lower Rollout), so I can get better acceleration out of the corners and make my passes on the infield. I just make sure that I don't go so low that the cars are able to pass me back again on the straight.

Shawn.
Thanks, fellas! Just the kind of info. I'm looking for. I'm currently finding that my infield speed is rather good, but I'm getting pulled too hard down the straight. Sounds like it may not be as uncommon as I'd thought to run real tall gearing. Time to step it up!
Tommy R is offline   Reply With Quote
Old 03-26-2013, 04:15 PM   #4473
Tech Addict
 
alloyslash's Avatar
R/C Tech Elite Subscriber
 
Join Date: Apr 2012
Location: Huntsville, Alabama
Posts: 538
Trader Rating: 19 (100%+)
Default

Quote:
Originally Posted by Tommy R View Post
What's the tallest gear some of you have run on more open layouts? So far I've run as tall as 3.62, but I may need to step it up a bit. I always monitor my motor temps, but I'm just curious....how high have you geared your motor before it's either got too hot or maybe become too sluggish?

Would there be a potential benefit to running less timing (presumably more torque, right?) when running a taller gear?
I rarely run 45* timing, did when I 1st started but now I generally run mine at 37* and taller gears on the big track ( 100'x48'? ). My laptimes got better and I don't get " pulled " anywhere on the track now. I'll run at around 30* on the small track and again, taller gear than most people thats cranked up. Works for me and my driving habbits
__________________
Pemberton SJ27 / Tekin RS / Cooper D4SS 17.5 / EAM 5000 / Futaba 9551 / 17.5lm
Pemberton SJ27 / Tekin RS / Bullet 13.5 / EAM 5000 / Savox 1251 / 13.5 Pro EDM

TLR22 / Tekin RS / D4SS 6.5 / Futaba 9551 / ORCA 6000 /SCMOD,
F14 carpet Oval Chassis too!
alloyslash is offline   Reply With Quote
Old 03-28-2013, 04:19 AM   #4474
Tech Fanatic
 
bertottius's Avatar
 
Join Date: Feb 2012
Location: Barrington, NJ
Posts: 820
Trader Rating: 16 (100%+)
Default TC4

Looking to buy a used tc4 roller or one with a VTA setup if anybody has one.
__________________
CHRIS BERTOTTI
www.teamirsrc.com
bodiesbybean.com
bertottius is offline   Reply With Quote
Old 03-28-2013, 10:29 AM   #4475
Tech Master
 
IndyHobbies.com's Avatar
 
Join Date: Dec 2008
Location: Brownsburg, Indiana
Posts: 1,866
Default

Quote:
Originally Posted by bertottius View Post
Looking to buy a used tc4 roller or one with a VTA setup if anybody has one.
There are 5 or 6 of them on eBay right now I noticed last night. Just search "Associated TC4" and click the "used" box.
__________________
Airbrushing Projects: www.indyhobbies.com/Airbrushing.html
"If you’re in control, you’re not going fast enough." – Parnelli Jones
USVTA #144
IndyHobbies.com is offline   Reply With Quote
Old 03-28-2013, 10:50 AM   #4476
Tech Addict
 
Join Date: Jan 2012
Location: Indianapolis give or take...
Posts: 659
Default

Quote:
Originally Posted by IndyHobbies.com View Post
There are 5 or 6 of them on eBay right now I noticed last night. Just search "Associated TC4" and click the "used" box.
Don't tell him that. Tell him he wants to buy mine Scott...
.crispy is offline   Reply With Quote
Old 03-28-2013, 11:16 AM   #4477
Tech Master
 
IndyHobbies.com's Avatar
 
Join Date: Dec 2008
Location: Brownsburg, Indiana
Posts: 1,866
Default

But Crispy's is the BEST DARN ASSOCIATED TC4 THIS SIDE OF THE MISSISSIPPI RIVER SO I WOULDN'T EVEN CONSIDER LOOKING ON EBAY!!!!!

(How did I do Gary?)

__________________
Airbrushing Projects: www.indyhobbies.com/Airbrushing.html
"If you’re in control, you’re not going fast enough." – Parnelli Jones
USVTA #144
IndyHobbies.com is offline   Reply With Quote
Old 03-28-2013, 11:53 AM   #4478
Tech Addict
 
Join Date: Jan 2012
Location: Indianapolis give or take...
Posts: 659
Default

Quote:
Originally Posted by IndyHobbies.com View Post
But Crispy's is the BEST DARN ASSOCIATED TC4 THIS SIDE OF THE MISSISSIPPI RIVER SO I WOULDN'T EVEN CONSIDER LOOKING ON EBAY!!!!!

(How did I do Gary?)

You could also have mentioned that Indy RC Racer said it was better than his!

Now I'm down to one TC4. Makes me sad. But I'm gonna keep the other as my "Arrive and drive" VTA car for friends and family. Nobody would pay what I have in it.
.crispy is offline   Reply With Quote
Old 03-28-2013, 07:17 PM   #4479
Tech Addict
 
5th wheel's Avatar
 
Join Date: Jul 2012
Location: Florida
Posts: 600
Default

I can't get the drag break to do anything on my Novak edge it set to 10 that's 100%and still looks like its not slowing down at all.
5th wheel is offline   Reply With Quote
Old 03-28-2013, 07:45 PM   #4480
Tech Elite
 
nashrcracer's Avatar
R/C Tech Charter Subscriber
 
Join Date: Nov 2001
Location: LA - Lower Antioch
Posts: 4,849
Trader Rating: 1 (100%+)
Default

just getting a chance to post from Sunday racing. took my Ballistic and GTB2 powered Xray T3r FTW usvta style over Eric Gellispe by a lap with battery by EA Motorsports

https://www.youtube.com/watch?featur...&v=Kiodrplh_Cg
__________________
RC50 As you come into this world, something else is also born. You begin your life, and it begins a journey towards you. It moves slowly, but it never stops. Wherever you go, whatever path you take, it will follow — never faster, never slower, always coming. You will run, it will walk. You will rest, it will not. One day, you will linger in the same place too long — you will sit too still, or sleep too deep. And when, too late, you rise to go, you will notice a second shadow next to yours. Your life will then be over.
nashrcracer is offline   Reply With Quote
Old 03-28-2013, 08:13 PM   #4481
Tech Master
 
beemerfan's Avatar
 
Join Date: Oct 2006
Posts: 1,602
Trader Rating: 34 (100%+)
Default

Quote:
Originally Posted by nashrcracer View Post
just getting a chance to post from Sunday racing. took my Ballistic and GTB2 powered Xray T3r FTW usvta style over Eric Gellispe by a lap with battery by EA Motorsports

https://www.youtube.com/watch?featur...&v=Kiodrplh_Cg
Was that your car sitting upside down about half way through? Curious what you ran for motor timing and gear ratio in that race? If you don't want Eric to know, please PM me.
beemerfan is offline   Reply With Quote
Old 03-28-2013, 09:33 PM   #4482
Tech Elite
 
nashrcracer's Avatar
R/C Tech Charter Subscriber
 
Join Date: Nov 2001
Location: LA - Lower Antioch
Posts: 4,849
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by beemerfan View Post
Was that your car sitting upside down about half way through? Curious what you ran for motor timing and gear ratio in that race? If you don't want Eric to know, please PM me.
I tapped a couple times and rolled it twice. I was the white yellow blue car that comes by the camera in the first second eric was the white car.

if everybody is just as fast as everybody else then it all comes down to driver
and that's what it's all about....

3.36 and about 37 degrees
__________________
RC50 As you come into this world, something else is also born. You begin your life, and it begins a journey towards you. It moves slowly, but it never stops. Wherever you go, whatever path you take, it will follow — never faster, never slower, always coming. You will run, it will walk. You will rest, it will not. One day, you will linger in the same place too long — you will sit too still, or sleep too deep. And when, too late, you rise to go, you will notice a second shadow next to yours. Your life will then be over.
nashrcracer is offline   Reply With Quote
Old 03-29-2013, 12:01 AM   #4483
Tech Master
 
beemerfan's Avatar
 
Join Date: Oct 2006
Posts: 1,602
Trader Rating: 34 (100%+)
Default

Quote:
Originally Posted by 5th wheel View Post
I can't get the drag break to do anything on my Novak edge it set to 10 that's 100%and still looks like its not slowing down at all.
Actually, the max setting of 10 is only 30% of your full braking force. You don't see or feel much braking but it is there slowing the car enough for the turns. I don't think Novak designs their drag brake to replace actual braking like you'll see a lot of guys do with some programmable speed controls setting it at 50% or more.
beemerfan is offline   Reply With Quote
Old 03-30-2013, 11:55 AM   #4484
Tech Master
 
IndyRC_Racer's Avatar
 
Join Date: Jul 2006
Location: Indianapolis
Posts: 1,709
Trader Rating: 9 (100%+)
Default

I decided to try a different battery last night in VTA to see how it performed. I had a spare Orion 4000 Rocket stick pack lipo with Dean's plugs (25c).

Since I'm running a tub chassis TC4, the first benefit was the battery was lighter. I actually had to add a bit of weight to get to 1550 grams. While I don't mind running a heavy car (handles side by side contact better), it is always nice to be able to put the weight were you want/need it.

I have several 5000 mah 40c batteries, but the Orion 4000 has the fewest cycles on it (less than 50). As far as on track performance I was able to run consistant laps for the entire run with very little drop off at the end.

I'm certainly not saying that this is a superior battery, but I was surprised at how well it performed for me. I might have to look into getting a good shorty pack to help shave some weight off my FT TC4 car - since it weighs over 1600 grams in race configuration (GTB with full size servo).
__________________
I'm currently racing VTA. Check here for rules/info: http://www.usvintagetransam.com/
IndyRC_Racer is offline   Reply With Quote
Old 03-30-2013, 02:11 PM   #4485
Tech Addict
 
Join Date: Jan 2012
Location: Indianapolis give or take...
Posts: 659
Default

I have an almost new 4400mah shorty in that TC4 of mine that you drove. You can run that next week.

With less weight and a good battery you can win by an even larger margin.
.crispy is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
U.S. Vintage Trans-Am [PICS & PAINT Discussion ONLY!!!] speedsterblade Electric On-Road 5821 11-21-2016 11:39 AM
TeamNovak (U.S Vintage Trans-Am) NovakTwo Electric On-Road 329 12-07-2013 08:48 PM
U.S. Vintage Trans-Am Racing squarehead Electric On-Road 14187 03-21-2012 02:43 PM
U.S. Vintage Trans Am Nationals: April 12th, 2008 squarehead Wisconsin & Illinois Racing 308 05-14-2008 08:56 AM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 05:23 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net

SEO by vBSEO 3.5.0