R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 10-20-2002, 12:19 PM   #1
ttr
Tech Apprentice
 
ttr's Avatar
 
Join Date: Mar 2002
Location: Budapest
Posts: 66
Default HPI Micro RS4 question

HI,
my car was well planted on asphalt, but now on carpet it's impossible to drive. Entering the turn the car begins to turn a little than spins out (180 deg) abruptly even at slow speed. Diffs are good the car runs very good and predictible on asphalt.

Car is basicly stock BMW with HPI mod motor,
5 cell 1000mhA,
HPI rear ball diff,
HPI soft wide rear tires (with standard foam inserts)
HPI front steel universals.
The chassis in the rear is slotted to make it softer and the standard rear spring is removed.

What should I change to make this car at least driveable on carpet?

I have already put some spacers below the front springs to make it a more harder and this helped a little but not enough. (My LHS has no micro parts on stock, I have to order and wait a month, so I need some home made solutions)

I don't race the micro, it's just for fun. I race 1/10 since 3 years, but we don't have a category for micros.

Thanks
Tamas
ttr is offline   Reply With Quote
Old 10-20-2002, 05:31 PM   #2
Tech Master
 
Im2lazy's Avatar
 
Join Date: Oct 2002
Location: Hawaii!
Posts: 1,967
Default

I don't really run my car on carpet, but I would suggest that you get the carpet rear tires offered by HPI, and also put a rear spring back on. All cars run on carpet need stiffer set ups. Sometimes, when your settings are too soft, there could be problems. I think that the soft tires are gripping so much that the flex in the chassis is getting to be so great that it upsets the tires grip.
Just my thoughts, but do try a rear spring because I have found that the lack of a rear spring in my micro makes it unpredictable. Also you might want to slightly lossen your rear diff which will increase the rear's mechanical grip. i hope this may help.
I love my micro.
Im2lazy is offline   Reply With Quote
Old 10-20-2002, 10:48 PM   #3
Tech Master
 
newracer's Avatar
R/C Tech Charter Subscriber
 
Join Date: Oct 2001
Location: Timnath, Colorado
Posts: 1,523
Default

the soft tires are not very good for carpet, that's your problem, medium fronts work well on the rear
newracer is offline   Reply With Quote
Old 10-21-2002, 01:14 AM   #4
Tech Master
 
Im2lazy's Avatar
 
Join Date: Oct 2002
Location: Hawaii!
Posts: 1,967
Default

Medium fronts?!?
On the rear?
Does it really get that much grip on the rear tires with even standard rear tires!
Oh well, whatever works.
Im2lazy is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
HPI rs4 micro question maximebeauvais Micro and Mini Scales 2 11-10-2007 10:54 AM
micro T battery question swannco Electric Off-Road 5 12-14-2006 08:28 AM
Micro Heli Question Chris08527 RC Flight 8 07-10-2006 08:28 PM
Micro RS4-Brushless question macnkitty2002 Electric Off-Road 2 09-24-2004 02:19 PM
Micro Question NeO-pRo-3 Rookie Zone 3 02-04-2003 03:34 PM



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 05:51 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net