R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 09-23-2011, 11:33 AM   #15811
Tech Master
 
jsinclair's Avatar
 
Join Date: Jul 2011
Location: rice lake, wi
Posts: 1,036
Trader Rating: 3 (100%+)
Default

I just put my m-05 together last night. The speed control has a low voltage cut off to protect "LF" batteries, what is a "LF" batt? And what voltage cut off is it set up for? Thanks
jsinclair is offline   Reply With Quote
Old 09-23-2011, 11:46 AM   #15812
jcr
Tech Regular
 
Join Date: Aug 2001
Location: Toronto
Posts: 394
Default

Quote:
Originally Posted by jsinclair View Post
I just put my m-05 together last night. The speed control has a low voltage cut off to protect "LF" batteries, what is a "LF" batt? And what voltage cut off is it set up for? Thanks
LF stands for LiFe batteries. Haven't figure out what the cut off voltage is at.
jcr is offline   Reply With Quote
Old 09-23-2011, 12:49 PM   #15813
Tech Elite
 
sosidge's Avatar
 
Join Date: Dec 2001
Location: Bristol, UK
Posts: 3,811
Default

Quote:
Originally Posted by jcr View Post
Are you sure it is 66.5mm? That seems kind of long.

I built up the Super Mini CVA with 3mm spacer and got 56mm total length.
Sorry, I meant 56.5.
sosidge is offline   Reply With Quote
Old 09-23-2011, 01:02 PM   #15814
Tech Master
 
jsinclair's Avatar
 
Join Date: Jul 2011
Location: rice lake, wi
Posts: 1,036
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by jcr View Post
LF stands for LiFe batteries. Haven't figure out what the cut off voltage is at.
Ill figure it out tonight, and post my results here. My charger has a motor drive function, and ill just keep dropping the voltage until it cuts out.
jsinclair is offline   Reply With Quote
Old 09-23-2011, 04:41 PM   #15815
Tech Champion
 
monkeyracing's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2008
Location: SnowMexico
Posts: 5,842
Trader Rating: 10 (100%+)
Default

The lowest voltage recommended for LiFe is 2.4v per cell.
__________________
Stab it and steer.
monkeyracing is offline   Reply With Quote
Old 09-24-2011, 10:12 PM   #15816
Tech Regular
 
clayrace24's Avatar
 
Join Date: Feb 2004
Location: Orange County, CA
Posts: 392
Trader Rating: 38 (100%+)
Default Mini Motors /esc question

I just put a stock Johnson motor in my M05 Pro after running it on a 17.5 and the dropoff in speed is significant. I'm running a really cheap futaba esc, but have a Sphere and a Cyclone I couild use if I choose to. Should it make any difference at all in punch to run a better controller? Been a while since I ran a brushed motor. Is it still recommended to do the water dip treatment on a new Johnson motor?

Clay
__________________
Losi 8be 2.0, AE B44, BMI COpperhead 12,Tamiya F104,Tamiya M05 Mini Cooper, Xray T3 2011
clayrace24 is offline   Reply With Quote
Old 09-24-2011, 10:23 PM   #15817
Tech Regular
 
clayrace24's Avatar
 
Join Date: Feb 2004
Location: Orange County, CA
Posts: 392
Trader Rating: 38 (100%+)
Default

Is anyone using the rear sway bar on the long chassis setup? I can't figure out how to get it to work due to the position of the shocks in the long setup. Help is appreciated.

Clay
__________________
Losi 8be 2.0, AE B44, BMI COpperhead 12,Tamiya F104,Tamiya M05 Mini Cooper, Xray T3 2011
clayrace24 is offline   Reply With Quote
Old 09-24-2011, 11:18 PM   #15818
jcr
Tech Regular
 
Join Date: Aug 2001
Location: Toronto
Posts: 394
Default

Quote:
Originally Posted by clayrace24 View Post
I just put a stock Johnson motor in my M05 Pro after running it on a 17.5 and the dropoff in speed is significant. I'm running a really cheap futaba esc, but have a Sphere and a Cyclone I couild use if I choose to. Should it make any difference at all in punch to run a better controller? Been a while since I ran a brushed motor. Is it still recommended to do the water dip treatment on a new Johnson motor?

Clay
On another note what Esc is good for silver can? Is the stock tamiya teu 104bk good enough?
jcr is offline   Reply With Quote
Old 09-24-2011, 11:28 PM   #15819
Tech Champion
 
monkeyracing's Avatar
R/C Tech Elite Subscriber
 
Join Date: Mar 2008
Location: SnowMexico
Posts: 5,842
Trader Rating: 10 (100%+)
Default

Unless you're running at a very competitive level - national or international - the stock ESC will do the job just fine. I've seen more than a few guys with the old stock 101BK easily win against others running Tekins, Novaks, LRPs, etc. You might find more adjustments in a higher end ESC, like drag brakes, but the stock one will do fine.

As for motors, we've just started running controlled 17.5T/2200kv motors at our club. They match the top speed of a good silver can quite well, but definitely pull harder out of the corners. Is this what you're experiencing, or is it an actual loss of top speed?

Jim
__________________
Stab it and steer.
monkeyracing is offline   Reply With Quote
Old 09-25-2011, 01:18 AM   #15820
Tech Elite
 
caltek1's Avatar
 
Join Date: Mar 2007
Posts: 3,354
Trader Rating: 33 (100%+)
Default Swaybar MO5L

See attached pictures for the rear swaybar on a MO5L. I do not use a front swaybar only on the rear. I also find at some tracks that it not useful, so I just disconnect one of the rear supports.

BTW,

Car setup has changed since these pictures.

Calvin.
Attached Thumbnails
Tamiya mini cooper-dsc_0282.jpg   Tamiya mini cooper-dsc_0278.jpg   Tamiya mini cooper-dsc_0280.jpg  
caltek1 is offline   Reply With Quote
Old 09-25-2011, 01:59 AM   #15821
Tech Regular
 
clayrace24's Avatar
 
Join Date: Feb 2004
Location: Orange County, CA
Posts: 392
Trader Rating: 38 (100%+)
Default

Quote:
As for motors, we've just started running controlled 17.5T/2200kv motors at our club. They match the top speed of a good silver can quite well, but definitely pull harder out of the corners. Is this what you're experiencing, or is it an actual loss of top speed?
Both punch and top speed are noticeably less. The motor I put in was previosly used and I know nothing of it's history. I have a brand new one that I'm going to put in next and see how that goes.

Thanks for the input .

Clay
__________________
Losi 8be 2.0, AE B44, BMI COpperhead 12,Tamiya F104,Tamiya M05 Mini Cooper, Xray T3 2011
clayrace24 is offline   Reply With Quote
Old 09-25-2011, 03:17 AM   #15822
Tech Elite
 
caltek1's Avatar
 
Join Date: Mar 2007
Posts: 3,354
Trader Rating: 33 (100%+)
Default Latest Incarnation of my MO5L

A couple of dirty pictures of my MO5 LWB after racing. Certainly needs a clean.
Attached Thumbnails
Tamiya mini cooper-dsc_0567.jpg   Tamiya mini cooper-dsc_0574.jpg   Tamiya mini cooper-dsc_0576.jpg   Tamiya mini cooper-dsc_0575.jpg   Tamiya mini cooper-dsc_0578.jpg  

caltek1 is offline   Reply With Quote
Old 09-25-2011, 03:44 AM   #15823
Tech Regular
 
Mr_Gleeman's Avatar
 
Join Date: Mar 2009
Location: Melbourne, Australia
Posts: 262
Trader Rating: 16 (100%+)
Default

Cal, that's a disgustingly dirty car for a photo shoot

Interesting Lipo pack you got there what is it?
I'm sick and tired of buying Lipo's that get pregnant and I have to throw away!

Question: What causes this swellage and is this one you have any better?

P.S I treat my Lipo's with the utmost respect, charge them at a sensible rate & don't short circuit them, what's going on is it just me?
__________________
www.tamiyarcmini.com ..............Check out my new web page

"Remember when all else fails stick to the gunuine Tamiya parts because you could of saved heaps!"
Mr_Gleeman is offline   Reply With Quote
Old 09-25-2011, 04:06 AM   #15824
Tech Elite
 
caltek1's Avatar
 
Join Date: Mar 2007
Posts: 3,354
Trader Rating: 33 (100%+)
Default

John,

It's like its owner, dirty.

The Lipo is a LRP 4600 30C. These are not cheap. I got one to try and have been happy with it, although the IP3800 is very popular and will be the next batteries I get for mini.

I don't balance my packs and I don't touch them after racing. Just leave them until the next week and top up when i get to the track.

My batteries get a workout as I practice normally once a week and race twice a week when I'm home. Other than that they get left for periods of up to a month were they stay in the Lipo sack.

I have only had problems with swelling packs in Touring Car and the old 4000 IP Lipo packs. I must add that I thoroughly abused those packs and still have a couple I use for practice. These I would run to cutoff, which I had set at 3.8 volts per cell. This certainly hurts the batteries as they do not last as long. They are soon destined for greenier pastures.

BTW,

I have cleaned the car, ready for tomorrow night, providing the rain disappears and the sun comes out.

Later,

Calvin.
caltek1 is offline   Reply With Quote
Old 09-25-2011, 09:02 AM   #15825
Tech Elite
 
YankeeFan123's Avatar
 
Join Date: Jun 2010
Location: California, USA
Posts: 2,554
Trader Rating: 30 (100%+)
Default

If anyone has a body that will go on a m03 that has the longer wheelbase, already painted or not and they would sellit,as long as itdoesnt have any cracksplease PM me
__________________
Brenden Edwards
B5M| T5M
YankeeFan123 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 07:13 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