R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 07-01-2013, 10:55 AM   #19126
Tech Elite
 
howardcano's Avatar
 
Join Date: Jan 2012
Location: Olathe, KS
Posts: 3,288
Trader Rating: 35 (100%+)
Default

Quote:
Originally Posted by Granpa View Post
Anyone want to take on the subject of "bump steer"?????
Sure! What do you want to discuss about it, other than it's usually bad!
__________________
Howard Cano
When race results are re-calculated using the IOF (Index Of Fun), I always win.
1993 ROAR 1/8 Pan National Champion
howardcano is offline   Reply With Quote
Old 07-01-2013, 11:28 AM   #19127
Tech Elite
 
Join Date: Oct 2006
Posts: 2,367
Default

Quote:
Originally Posted by howardcano View Post
Sure! What do you want to discuss about it, other than it's usually bad!
I asked that partly in jest. The floor is yours Howard, I know squat. You might start by saying what it is and what it does, why it's bad, whether we can use it to our advantage, how you can change or affect it, among other things.

I pretty much ignore it cause I wouldn't know what to do about it. I'd be interested in your thoughts.
Granpa is offline   Reply With Quote
Old 07-01-2013, 11:57 AM   #19128
Tech Champion
 
monkeyracing's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2008
Location: SnowMexico
Posts: 5,843
Trader Rating: 10 (100%+)
Default

Bump steer: The M03 has loads and I've learned to live with it. I tend to use the rearmost hole in the knuckles and try to keep the linkages as level as possible to minimize the effect. My front toe is fairly neutral at ride height. That helps a bit. You can use that extra bit of steering on the outside wheel to effectively reduce overall Ackermann.

In any case, I'm just talking out of my ass. I don't understand the effects well. I just try to minimize bump steer and the car goes around corners pretty good.
__________________
Stab it and steer.
monkeyracing is offline   Reply With Quote
Old 07-01-2013, 01:54 PM   #19129
Tech Adept
 
Laguna Bozo's Avatar
 
Join Date: Sep 2010
Location: Beach
Posts: 163
Default B. S.

Years ago I went to great lengths to get rid of bump steer, using longer and longer stand offs, and the handling didn't get better, it got worse! Learn to love (some) bump steer. As Jim noticed, it gets rid of Ackerman (which to me is just the name of a phenomenon and not a tuning aid) and seems to help that outside wheel dig in and steer. All that toe-out we put in the front to make M03's track straight, goes away when the cars heel over in the turns...
__________________
Craig Richter
Laguna Bozo is online now   Reply With Quote
Old 07-01-2013, 03:12 PM   #19130
Tech Elite
 
howardcano's Avatar
 
Join Date: Jan 2012
Location: Olathe, KS
Posts: 3,288
Trader Rating: 35 (100%+)
Default

I think you guys have the subject covered pretty well!

Personally, I'd just try to minimize it. The adjustment was made on my Formula Ford by shimming the height of the steering rack. It looks like my M05 is similar, and could easily be adjusted by placing some spacers under the inside balls for the steering links. Since my M05 has some toe-in on suspension compression, I might have to try that.

Since the front tires spend a huge portion of their time sliding, I'm guessing I probably won't notice much difference. It might help a little with the trailing-throttle oversteer my car exhibits towards the end of a heat.

I've never really fiddled with my car at all; I just bought it used here on RCTech and ran it the way it was. When I ran in Omaha, the car was fast enough that I had to turn down the throttle to have a good race with the other guys, so there was no point in trying to get more out of the car. But yesterday I finally got to race with Core Creations (Charlie) and a couple of other Minis at the local track, and the situation was MUCH different. My fast lap was about 1% off the pace, but I made up for it in consistency, and took TQ and the win. But those guys might have just been screwing with me!
__________________
Howard Cano
When race results are re-calculated using the IOF (Index Of Fun), I always win.
1993 ROAR 1/8 Pan National Champion
howardcano is offline   Reply With Quote
Old 07-03-2013, 06:49 AM   #19131
Tech Regular
 
volracer's Avatar
 
Join Date: Jun 2004
Location: Madison, Alabama
Posts: 266
Send a message via ICQ to volracer
Default

http://www.redrc.net/2013/07/tamiya-...n-chassis-kit/

Yes Gold. Precious Gold. Must be faster. Must have.
volracer is offline   Reply With Quote
Old 07-03-2013, 07:23 AM   #19132
Tech Addict
 
bizkit1's Avatar
 
Join Date: May 2006
Posts: 743
Trader Rating: 27 (100%+)
Default

bizkit1 is offline   Reply With Quote
Old 07-03-2013, 07:49 AM   #19133
Tech Addict
 
irockflipflops's Avatar
 
Join Date: Jul 2012
Location: Baltimore, MD
Posts: 538
Trader Rating: 33 (100%+)
Default

Quote:
Originally Posted by bizkit1 View Post
Sexy! Can you see a clear body with decals on this beauty?!
__________________
What’s behind you doesn’t matter. – Enzo Ferrari
“Very occasionally, if you pay really close attention, life doesn't suck.” ― Joss Whedon
irockflipflops is offline   Reply With Quote
Old 07-03-2013, 01:19 PM   #19134
Tech Champion
 
monkeyracing's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2008
Location: SnowMexico
Posts: 5,843
Trader Rating: 10 (100%+)
Default

That's a nice looking chassis. Certainly better than the M06 "last days of disco" edition.

I wonder what improvements were made to the suspension and if they'd translate to an M03.
__________________
Stab it and steer.
monkeyracing is offline   Reply With Quote
Old 07-03-2013, 02:39 PM   #19135
Tech Adept
 
ruebiracer's Avatar
 
Join Date: Feb 2011
Location: Southern Germany
Posts: 223
Default

Quote:
Originally Posted by monkeyracing View Post
That's a nice looking chassis. Certainly better than the M06 "last days of disco" edition.

I wonder what improvements were made to the suspension and if they'd translate to an M03.
For sure nicer in the color choice than the M06R.
Suspension update on front is copied by M06 rear. Lower mounts more outside on the wishbone on the suspension pin. You can see it in the picture already...

Nice shelfer, but imagine scratches in this gold chassis from driving...

Br,
Matthias
__________________
www.TTSC-Racing.de
www.skodacup.de
ruebiracer is offline   Reply With Quote
Old 07-03-2013, 03:12 PM   #19136
Tech Apprentice
 
Join Date: Jan 2009
Posts: 58
Default

It seems like grandpa just cant be nice on his posts or replies . He is always an ass to people who ask any type of question on the mini threads. I think thats why mini is such a hit and miss class . Fresno jay just go to rcmini.net and follow those hints and you wont have to deal with gpa and his negative attitude. I askew him once and that was all it took . Tim and the guys on rcmini.net are full of great info for m03 and m05 .
Hope this helps
demoman588 is offline   Reply With Quote
Old 07-03-2013, 04:29 PM   #19137
Tech Champion
 
monkeyracing's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2008
Location: SnowMexico
Posts: 5,843
Trader Rating: 10 (100%+)
Default

Quote:
Originally Posted by ruebiracer View Post
For sure nicer in the color choice than the M06R.
Suspension update on front is copied by M06 rear. Lower mounts more outside on the wishbone on the suspension pin. You can see it in the picture already...

Nice shelfer, but imagine scratches in this gold chassis from driving...

Br,
Matthias
Ah, I see it now. I'd already tried that on my M03. Tamiya is copying me!

I didn't find it worthwhile on my car, but I didn't give it much time.
__________________
Stab it and steer.
monkeyracing is offline   Reply With Quote
Old 07-03-2013, 05:46 PM   #19138
Tech Elite
 
Join Date: Oct 2006
Posts: 2,367
Default

Quote:
Originally Posted by demoman588 View Post
It seems like grandpa just cant be nice on his posts or replies . He is always an ass to people who ask any type of question on the mini threads. I think thats why mini is such a hit and miss class . Fresno jay just go to rcmini.net and follow those hints and you wont have to deal with gpa and his negative attitude. I askew him once and that was all it took . Tim and the guys on rcmini.net are full of great info for m03 and m05 .
Hope this helps
Wow, it seems as if I've earned the animus of a number of people on this thread. It saddens me a bit, but for the most part it matters not a whit to me. I'm too old to let this stuff bother me much, if at all.

It's obvious you never read my posts on set up advice to fresnojay. He and I worked out our differences via PMs which is where this stuff belongs. Also, you never read his post telling me he did a number of things I suggested and they helped cure his problems.

What your problem with me is, I haven't the vaguest idea. I recall getting PMs from you a while back, but don't recall the subject matter.
Granpa is offline   Reply With Quote
Old 07-03-2013, 05:51 PM   #19139
Tech Master
 
edhchoe's Avatar
 
Join Date: Jul 2004
Location: vancouver, wa, usa
Posts: 1,509
Trader Rating: 41 (100%+)
Default

I haven't been reading the recent posts so I don't know what has been happening.
But grandpa was one of the people who answered my question quickly about a month ago.
Very helpful and knowledgeable was the impression I got.
edhchoe is offline   Reply With Quote
Old 07-03-2013, 07:04 PM   #19140
MD
Tech Elite
 
MD's Avatar
 
Join Date: Aug 2005
Location: Illinois
Posts: 4,591
Trader Rating: 102 (100%+)
Default

Quote:
Originally Posted by demoman588 View Post
It seems like grandpa just cant be nice on his posts or replies . He is always an ass to people who ask any type of question on the mini threads. I think thats why mini is such a hit and miss class . Fresno jay just go to rcmini.net and follow those hints and you wont have to deal with gpa and his negative attitude. I askew him once and that was all it took . Tim and the guys on rcmini.net are full of great info for m03 and m05 .
Hope this helps
I don't personally know Grandpa. I've enjoyed a lot of his posts and learned a lot from them. He is not the person you describe.
MD is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Tamiya Mini Cooper M-03L Hop-ups mini71 R/C Items: Wanted to Buy 4 05-04-2016 11:07 AM
Tamiya Mini Cooper mach51 R/C Items: Wanted to Buy 10 09-02-2011 12:08 AM
FS:TAMIYA Mini Cooper, TA 04S rthmotorsports R/C Items: For Sale/Trade 4 10-20-2007 09:37 PM
Tamiya 415 MSX and M03 Mini Cooper F/S Racer X79 R/C Items: For Sale/Trade 14 12-22-2006 07:38 AM
Tamiya M01,02,03, or 04 Mini Cooper ccugolf.com R/C Items: Wanted to Buy 2 12-05-2004 08:55 PM


Tags
m03, m03r ules, m05, mini, tamiya


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 10:46 PM.


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

SEO by vBSEO 3.5.0