R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 02-22-2015, 07:55 PM   #1
Tech Regular
 
Emaculant's Avatar
 
Join Date: Sep 2013
Posts: 380
Trader Rating: 10 (100%+)
Exclamation Drag brake?

Pro and cons? I hear different things. I notice using it I am significantly faster using it, but when getting into racing last year I was told to stay away from it. Are you guys using drag break why or why not and what class? Thanks.
Emaculant is offline   Reply With Quote
Old 02-22-2015, 08:03 PM   #2
Tech Regular
 
Join Date: Jan 2012
Location: Dublin CA
Posts: 264
Trader Rating: 9 (100%+)
Default

Sorry for putting unnecessary weight on your post.
but I appreciate if you could add the definition of it as well.
__________________
VBC f1 / MST 01 d pro /
I love this hobby!!
aackjw is offline   Reply With Quote
Old 02-22-2015, 08:03 PM   #3
Tech Elite
 
san.'s Avatar
 
Join Date: Oct 2008
Location: Earth
Posts: 4,403
Trader Rating: 60 (100%+)
Default

I use no drag brakes in Blinky and 15%-20% in Non-Blinky classes. Drag brakes slows down your forward momentum and may affect your corning speed, which is not ideal for Blinky.
__________________
Awesomatix USA||Roche RC USA||Mon-Tech Racing USA||Sanwa
san. is offline   Reply With Quote
Old 02-22-2015, 08:11 PM   #4
Tech Elite
 
blis's Avatar
R/C Tech Elite Subscriber
 
Join Date: May 2008
Location: Brisbane
Posts: 3,434
Default

Quote:
Originally Posted by Emaculant View Post
Pro and cons? I hear different things. I notice using it I am significantly faster using it, but when getting into racing last year I was told to stay away from it. Are you guys using drag break why or why not and what class? Thanks.
Depends on the track...

Some tracks are better others need more free roll and its a compromise you make whether there are more or less corners to hold throttle and others that demand more physical braking..
__________________
RC Cars: E4/G4/TCX/LAB-C02/T4'15/MM Engines
WEB: Beachmums Racing - MYRCM Race Registration
Media: Amain - RCRacingTV - RedRC - LiveRC - blisx264
blis is offline   Reply With Quote
Old 02-22-2015, 08:25 PM   #5
Regional Moderator
 
disaster999's Avatar
 
Join Date: Aug 2001
Location: Hong Kong
Posts: 3,162
Trader Rating: 1 (100%+)
Default

drag brakes when off throttle, or only when you apply brakes?

Like others have said, if you have drag brakes when off throttle, they reduces momentum when cornering and might affect overall times.

If you set it to drag brake only when you apply brakes then that might have its uses esp for pan cars. Its pretty hard for cars with solid rear axles to stop on a dim after the long back straight without spinning. Drag brakes will help you slow down without locking up the wheels and prevent spinning
disaster999 is offline   Reply With Quote
Old 02-22-2015, 08:54 PM   #6
Tech Addict
 
gubbs3's Avatar
 
Join Date: Aug 2006
Location: MN
Posts: 616
Trader Rating: 7 (100%+)
Default

Quote:
Originally Posted by aackjw View Post
Sorry for putting unnecessary weight on your post.
but I appreciate if you could add the definition of it as well.
I'll fill this in: Drag brake= the amount of brake automatically applied when the throttle is at neutral.

While we're on the subject.... Initial brake (aka minimum brake)=the amount of brake when you begin to push the trigger forward. Many times you may see "Initial brake=drag brake" in esc settings. This simply means the braking force will progress from the level the drag brake is set.

Drag brake will help "set" the front end when you release the throttle by transferring extra weight forward so the car turns in harder. This can be helpful in blinky classes as you can have a very mellow handling car but just releasing the throttle going into a tight corner will help it turn in aggressively.

In faster classes, drag brake is more often used as a driver aid in lieu of physically pushing the brake trigger forward. Just like mashing the throttle, not using the brake smoothly and consistently will get the car out of shape. Drag brake gives 100% consistent brake action every time you release the gas.

You can't really label it with pros and cons. Just personal preference. Running with or without will either require a small setup change or change in driving technique. Test it both ways and make your own decision. And remember, don't just go by your fastest lap, better consistency is almost certain to be faster.
gubbs3 is offline   Reply With Quote
Old 02-22-2015, 08:59 PM   #7
Tech Addict
 
Join Date: Mar 2002
Location: New Zealand
Posts: 554
Default

I have been using drag brake for 20 years... It always helps with corner entry as I find regular brake is less consistent.
ixlr8nz is offline   Reply With Quote
Old 02-23-2015, 05:18 AM   #8
Tech Regular
 
Emaculant's Avatar
 
Join Date: Sep 2013
Posts: 380
Trader Rating: 10 (100%+)
Default

Interesting answers so far some racers made it seem taboo to use it.
Emaculant is offline   Reply With Quote
Old 02-23-2015, 05:47 AM   #9
Tech Fanatic
 
Salkin's Avatar
 
Join Date: Jan 2014
Posts: 882
Default

Quote:
Originally Posted by Emaculant View Post
Interesting answers so far some racers made it seem taboo to use it.
That's only because some sees it as a driving "aid", where others sees it as a tuning option.

It is just like using negative expo on steering. Is that a driving aid or tuning option?

Or like epa adjustment on braking (determine brake force). Is that a driving aid or tuning option?

Concerning drag brake, I have read somewhere that many mod drivers use it simply because it allows them to brake faster.
__________________
Yokomo BD7 2016 Black Series - MuchMore Fleta Pro / MuchMore ZX - Highest DLP650 - Sanwa M12
Salkin is offline   Reply With Quote
Old 02-23-2015, 06:38 AM   #10
Tech Elite
 
oeoeo327's Avatar
 
Join Date: Oct 2008
Posts: 3,542
Trader Rating: 72 (100%+)
Default

Quote:
Originally Posted by Emaculant View Post
Interesting answers so far some racers made it seem taboo to use it.
Spec classes - Don't use it... Use of push brake is preferred, as the transition between drag brake and part throttle tends to be somewhat abrupt, and could upset the car coming out of corners.
Mod/Open Classes - drag brake makes the car easier to drive, but still requires use of push brakes to make corners successfully.

Skillful use of the brakes separates the good drivers from the great ones - the only way to truly master braking is to practice your push-braking technique at every opportunity. Using drag brake as a crutch will only serve to slow your overall progress as a driver.
__________________
Founding member of the Solid Gold Racing Team - Mediocrity, redefined...
oeoeo327 is offline   Reply With Quote
Old 02-23-2015, 06:52 AM   #11
Tech Elite
 
Skiddins's Avatar
 
Join Date: Feb 2006
Location: Windsor, UK
Posts: 4,741
Default

In the ETS, the top blinky drivers (13.5) all use drag brakes.
__________________
Xray T4'18, T4'14 (Wet Car)
Xray X12 2018
Xray X1'16
wlrc.co.uk (West London Racing Centre)
RCDisco.co.uk
Skiddins is offline   Reply With Quote
Old 02-23-2015, 06:57 AM   #12
Tech Master
 
1/4milecrazy's Avatar
R/C Tech Elite Subscriber
 
Join Date: Oct 2008
Location: AE for LIFE!!!
Posts: 1,078
Trader Rating: 4 (100%+)
Default

Quote:
Originally Posted by oeoeo327 View Post
Spec classes - Don't use it... Use of push brake is preferred, as the transition between drag brake and part throttle tends to be somewhat abrupt, and could upset the car coming out of corners.
Mod/Open Classes - drag brake makes the car easier to drive, but still requires use of push brakes to make corners successfully.

Skillful use of the brakes separates the good drivers from the great ones - the only way to truly master braking is to practice your push-braking technique at every opportunity. Using drag brake as a crutch will only serve to slow your overall progress as a driver.
I totally disagree with this, respectfully. I mainly race off road, 17.5 buggy and I use 40% drag brake, in my wheeler I use 10%, it makes jumps a lot harder because you have to control the car mid air to keep from nosing over, but in faster corners I dont even use the brake, I just let off and allow the drag brake to do the work, it really helped with my consistency. I am going to be playing with it in my 17.5 TC as well as my VTA car once I get more practice time at the track and 1/8th buggy as soon as it warms up around here. It is a very useful tool for tuning, call it lazy if you want but I think it is just another tool in the tool box that you can use if the conditions call for it. You would never remove engine braking from a real car in real racing, why would you in R/C?
__________________
Apparently "equal" and "partners" means different things to different people.
1/4milecrazy is offline   Reply With Quote
Old 02-23-2015, 06:59 AM   #13
Tech Master
 
b20btec's Avatar
 
Join Date: Oct 2011
Location: Sugar Land
Posts: 1,085
Trader Rating: 11 (100%+)
Default

I say try it out and see what you like then make your own judgement call. There is no pros and cons.
__________________
Soap



REFLEXRACING.NET * TEXASEOS.NET * YOKOMO
b20btec is offline   Reply With Quote
Old 02-23-2015, 07:04 AM   #14
Tech Regular
 
Join Date: Jul 2014
Posts: 497
Default

I use drag brake but I also use a front one way so smooth and consistent braking is even more important for not spinning out.
2uzferunner03 is offline   Reply With Quote
Old 02-23-2015, 07:08 AM   #15
Tech Apprentice
 
GhostTown's Avatar
 
Join Date: Jan 2015
Location: Southwest Idaho
Posts: 93
Default

I never use it. DB always unsettled the car (on or off road) when I didn't want it to. With DB, you never get the option of a neutral off-power roll, whether in a corner, trying to avoid an accident, or what ever. You're either pounding the rear tires, or throwing all the weight forward.
GhostTown is offline   Reply With Quote
Reply



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 11:09 PM.


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