R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 06-05-2007, 04:31 PM   #1
Tech Apprentice
 
RaceANissan616's Avatar
 
Join Date: Oct 2005
Location: Massachusetts, USA
Posts: 97
Send a message via AIM to RaceANissan616
Suspension Bottom Out

Along with my carburetor problem, found here, I have an issue with my suspension as well. I have a Hpi Nitro Rs4 3 18ss (that's a mouthful), and I'm not too sure why I've been having problems, I've built two hpi kits prior, but this one being the first nitro...On the highest settings, my chassis scrapes the ground. I have spent hours trying to adjust suspension but have only found out how to make it lower, which is bad right now. Any rs4 owners that have had the same issue? I still need to get the engine running so don't worry, I haven't been running it with the chassis scraping the ground
RaceANissan616 is offline   Reply With Quote
Old 06-05-2007, 04:42 PM   #2
Tech Master
 
Rapid Roy's Avatar
 
Join Date: Oct 2002
Location: L.A. (Rowland Hts)
Posts: 1,531
Default

You shouldn't be having any problem with ride height. Double check your shock lengths with the instructions. Also make sure that the shock mounting locations are correct.
Rapid Roy is offline   Reply With Quote
Old 06-05-2007, 05:14 PM   #3
Tech Apprentice
 
RaceANissan616's Avatar
 
Join Date: Oct 2005
Location: Massachusetts, USA
Posts: 97
Send a message via AIM to RaceANissan616
Default

I have excess space in the shocks where the springs do not fill up, I would need to shorten the length of the shock to make it flush with the spring...wrong size springs maybe?? I can't thnk of anything else
RaceANissan616 is offline   Reply With Quote
Old 06-05-2007, 05:25 PM   #4
Tech Regular
 
dnitro's Avatar
 
Join Date: Apr 2005
Location: Chino, CA
Posts: 311
Default

Quote:
Originally Posted by RaceANissan616 View Post
I have excess space in the shocks where the springs do not fill up, I would need to shorten the length of the shock to make it flush with the spring...wrong size springs maybe?? I can't thnk of anything else

There should be plastic shock inserts (collars) tha come with the kit. Use them and your problem shoud go away.
__________________
TM G4S
IDM Evo3
dnitro is offline   Reply With Quote
Old 06-05-2007, 05:35 PM   #5
Tech Apprentice
 
RaceANissan616's Avatar
 
Join Date: Oct 2005
Location: Massachusetts, USA
Posts: 97
Send a message via AIM to RaceANissan616
Default

Yeah I know, but there's only 1 inserted into the 2 front shocks in the manual, and I'm gonna need like 3 at least...odd?
RaceANissan616 is offline   Reply With Quote
Old 06-05-2007, 05:52 PM   #6
Tech Master
 
Rapid Roy's Avatar
 
Join Date: Oct 2002
Location: L.A. (Rowland Hts)
Posts: 1,531
Default

Check the part numbers you used in building the shocks. You can also check the part you used against the parts size reference along the margin of the manual.
Rapid Roy is offline   Reply With Quote
Old 06-05-2007, 05:54 PM   #7
Tech Apprentice
 
RaceANissan616's Avatar
 
Join Date: Oct 2005
Location: Massachusetts, USA
Posts: 97
Send a message via AIM to RaceANissan616
Default

Hmm...Alright I'll check that tomorrow, hopefully I used the wrong part haha, any other possible ideas?
RaceANissan616 is offline   Reply With Quote
Old 06-05-2007, 07:57 PM   #8
Tech Master
 
devious17's Avatar
 
Join Date: Sep 2005
Location: Kay Yell
Posts: 1,707
Trader Rating: 1 (100%+)
Default

RS4 has uneven weight distribution. the engine sits on one side and when the car takes a turn leaning towards the engine the chassis will scrape no matter what you do with the suspension to prevent that from happening,if you do managed to stop it from scratching most probably your suspension has uneven setting between both left and right in the end. Increase ride height and you will experience roll or unstable cornerin due to weight shifting.

To counter the problem I had on my RS4, I bought an MTX4
devious17 is offline   Reply With Quote
Old 06-06-2007, 05:22 AM   #9
Tech Apprentice
 
RaceANissan616's Avatar
 
Join Date: Oct 2005
Location: Massachusetts, USA
Posts: 97
Send a message via AIM to RaceANissan616
Default

haha nice solution, unfortunately that's not what I wanted to hear considering I haven't run this yet
RaceANissan616 is offline   Reply With Quote
Old 06-06-2007, 08:49 AM   #10
Tech Champion
 
asw7576's Avatar
 
Join Date: Sep 2004
Posts: 5,792
Default

Quote:
Originally Posted by RaceANissan616 View Post
haha nice solution, unfortunately that's not what I wanted to hear considering I haven't run this yet
1. Longer piston shaft. You need to open the shock and bring the shaft to hobby shop to find longer one.

or 2. use Longer boots ( the black plastic that clips to suspension arms ).
asw7576 is offline   Reply With Quote
Old 06-06-2007, 10:46 AM   #11
Tech Apprentice
 
RaceANissan616's Avatar
 
Join Date: Oct 2005
Location: Massachusetts, USA
Posts: 97
Send a message via AIM to RaceANissan616
Default

yeah I'm thinking that it is the boots, because they have longer ones in the kit than the ones I have on currently, I'll try that when I get a chance, thanks
RaceANissan616 is offline   Reply With Quote
Old 06-06-2007, 11:25 AM   #12
Tech Adept
 
Join Date: Aug 2006
Location: South Africa
Posts: 130
Default

Why didnt you use the kit ones in the first place??
Delta9 is offline   Reply With Quote
Old 06-06-2007, 08:14 PM   #13
Tech Master
 
devious17's Avatar
 
Join Date: Sep 2005
Location: Kay Yell
Posts: 1,707
Trader Rating: 1 (100%+)
Default

longer shock shaft wont solve the problem either, the pistons going to visit the shock cap very often after that
devious17 is offline   Reply With Quote
Old 06-07-2007, 04:40 PM   #14
Tech Apprentice
 
RaceANissan616's Avatar
 
Join Date: Oct 2005
Location: Massachusetts, USA
Posts: 97
Send a message via AIM to RaceANissan616
Default

They are from the kit! haha they're the part that HPI tells you to use that's why I'm confused in the first place...would the amount of oil in the shocks have anything to do with it? Cause at one point I had the o-rings in the wrong place haha and I lost oil
RaceANissan616 is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
TC5 bottom chassis loopedout R/C Items: Wanted to Buy 0 12-11-2007 06:56 PM
Bottom or Top End needle first ? nikkor Singapore R/C Racers 1 11-10-2006 11:16 AM
Tamiya lightweight suspension - trade for 415 suspension letitroll R/C Items: For Sale/Trade 3 10-19-2004 10:45 PM
last post at bottom!! donthaveaclue R/C Tech Site Forum 1 11-28-2003 06:36 AM



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 01:59 AM.


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