R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro Off-Road

Reply
 
Thread Tools Search this Thread
Old 09-10-2011, 10:47 AM   #1
Tech Adept
 
ctozzi's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2011
Posts: 105
Trader Rating: 28 (100%+)
Default Losi 8 2.0 B rtr Starter box issue

I have a rtr losi 8 2.0 buggy that runs great but the starter box takes forever to turn over the motor and sometimes cannot turn the flywheel, i have to take a flathead and manually un-stick the flywheel so the 2 NIMH batteries can then turn it over. Then i repeat the process till i can get it started. A PITA to say the least. My question is if I get the Losi 14.8v Lipo like this:

http://www.ebay.com/itm/Losi-LOSB982...item4cf9a7c05f

Will it have a major increase in turning power ?

2nd question is the bottom of the starter box has 2 tamiya style connectors that share the load. Both have to be connected to run the motor, since the Losi Lipo only has 1 connector how do I plug the 1 connector into the 2 slots ? Probably a very easy answer but I'm a novice at this stuff. Thanks for the help
Chris
__________________
RC Tracks Of Las Vegas
Kyosho MP9 TKi3 Kyosho STRR EVO
Associated RC 10GT & Tamiya Lunchbox Restored
ctozzi is offline   Reply With Quote
Old 09-10-2011, 10:54 AM   #2
Tech Initiate
 
Join Date: Aug 2011
Posts: 35
Trader Rating: 8 (100%+)
Default

I am assuming the engine is still new. Pre heating the engine with a heat gun or hair dryer helps.

I had similar problems with my 8t 2.0 starter box, even with the 4s lipo. though I am sure it does generate more power and may solve your problem all together.

Once i starter pre-heating the engine those issues went away.

As for wiring. I just removed the dual tamiya connectors and soldered in a single deans plug.
Milk50 is offline   Reply With Quote
Old 09-10-2011, 11:14 AM   #3
Tech Adept
 
ctozzi's Avatar
R/C Tech Elite Subscriber
 
Join Date: Aug 2011
Posts: 105
Trader Rating: 28 (100%+)
Default

exactly what i needed to know, thanks
__________________
RC Tracks Of Las Vegas
Kyosho MP9 TKi3 Kyosho STRR EVO
Associated RC 10GT & Tamiya Lunchbox Restored
ctozzi is offline   Reply With Quote
Old 09-11-2011, 03:55 AM   #4
Tech Regular
 
Trugsta's Avatar
 
Join Date: Sep 2010
Location: sunshine coast australia
Posts: 468
Trader Rating: 10 (100%+)
Send a message via MSN to Trugsta
Default

heat is always a goodthing when starting your engine new or old.

If you make the jump to lipo you will not look back.
you'll have tonns more torque,power and battery life.

I went to lipo in my starter boxes a few months ago and compaired to nimh the difference is night and day...

all I can say is DO IT....
__________________
Proud Member of S.C.O.R.C.
Losi 8T2- Novarossi P5/Novarossi and GRP pipes.
spektrum DX3S. SAVOX servos. "Race till it MHZ"
A huge thanks to.
www.motorsaver.com (the absolute best filters and savers on the plannet).
Trugsta is offline   Reply With Quote
Old 09-12-2011, 01:38 PM   #5
Tech Master
 
Littlejohn Dsgn's Avatar
 
Join Date: May 2011
Posts: 1,332
Trader Rating: 47 (98%+)
Default

Make sure to get a low voltage indicator of some sort, over dishcharging a lipo = bad news. My brother and I share a box, figured no big deal charge before each race no need for an indicator, well at the last race we both had engine issues so the starter box had a lot more use then normal, start of the main, the box wouldnt turn over the engine or great dead battery.... open the box, and the battery was darn near 1.5 times its normal size.

Got it out and in a lipo bag, away from everything, never caught fire but learned a good leason. New indicator going in this week
__________________
Scott Littlejohn - Owner of Littlejohn Design
Fleet - FT B4.1(FS) - FT T4.1(FS) - Emaxx - Micro T's (4)
Littlejohn Dsgn is offline   Reply With Quote
Old 09-19-2011, 04:19 AM   #6
Tech Apprentice
 
Join Date: Apr 2011
Location: Shepparton, Victoria, Australia
Posts: 80
Trader Rating: 3 (100%+)
Default losi rtr starter box

have converted my box to 4S 35C lipos as well but so far have shredded two drive belts and two sets of cogs.

Have given up and installed OFNA motor and is a lot better.
EJ Harvs is offline   Reply With Quote
Old 09-19-2011, 08:49 AM   #7
Tech Master
 
alexrckid's Avatar
 
Join Date: Jul 2006
Location: south carolina
Posts: 1,555
Default

also, make double sure that the contact switch on the box is adjusted so that the flywheel can spin for a split seconf before it actually contacts the flywheel..............this gives the motors and rubber wheel a chance to get up to speed(and provide enough torque) to hit the flywheel with authority...and, like mentioned....PREHEAT THE BLOCK........giant difference and much easier on the engines internals................
__________________
2008/2009 northeast super series Production MT champion
8T-2.0, werks B5, 2013, hitec's.
gallimods hobbies and raceway, barn/wolcott.
living in north myrtle beach. race at badlands
alexrckid 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 01:34 AM.


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