R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 02-24-2003, 06:28 PM   #5491
Tech Regular
 
Join Date: Sep 2001
Posts: 396
Default

O.k. I ended up running the losi low roll centres on the weekend with 4 degrees kickup AND 6 degree carriers, giving me 10 deg caster total (whoops). But it actually worked really well on the tight carpet track we were running on.

From my understanding, the standard MF carpet setup uses the equivalent of the losi mounts anyhow, as it says "low roll centre shimmed up 0.060" What I don't get is how a 4 degree kickup block gives you 3 deg anti dive, even if upside down in the 0 deg position. I assume maybe the aluminium pivot blocks are different.
sleek the elite is offline   Reply With Quote
Old 02-24-2003, 06:32 PM   #5492
Tech Elite
 
jjmudd's Avatar
 
Join Date: Dec 2001
Location: Edmonton, Canada
Posts: 2,396
Trader Rating: 5 (100%+)
Default

Could someone please explain what the forward ackerman with the bell-cranks fliped is supposed to do in the G+.
jjmudd is offline   Reply With Quote
Old 02-24-2003, 06:49 PM   #5493
Tech Elite
 
Join Date: Sep 2001
Location: Newville,Pa
Posts: 2,152
Trader Rating: 7 (100%+)
Default

Sleek- your equasion is cute.....but it's wrong!!!!!!!....LOL

When you use the Losi low roll center blocks 0 deg fronts give -2 deg kick-up, 0 mounts are 0 deg kick-up, and 4 blocks = 2 deg kick-up
__________________
G's RC Raceway- Best off-road track on the east coast...period!!!

Pitman for Team Dallas Austin...
IMPACTPLAYR is offline   Reply With Quote
Old 02-24-2003, 07:07 PM   #5494
Tech Regular
 
Join Date: Sep 2001
Posts: 396
Default

yeah I know, I just remembered that and was going to edit my post, but you beat me to it.... DOH!
sleek the elite is offline   Reply With Quote
Old 02-24-2003, 07:11 PM   #5495
Tech Regular
 
Join Date: Sep 2001
Posts: 396
Default

still, that means that that I still have to shim the losi lrc blocks up slightly to get the same anti-dive (3 deg), and unless matts aluminium pivot blocks are different, that would give me the correct roll centre.

In any case, the setup I used was sweet, so I've got a base setup now anyhow...
sleek the elite is offline   Reply With Quote
Old 02-24-2003, 08:09 PM   #5496
Tech Addict
 
Join Date: Aug 2001
Location: Kenyon, MN
Posts: 633
Trader Rating: 1 (100%+)
Default

I'm pretty sure the Losi LRC blocks are .060 higher than the MF LRC blocks. I never owned the original xxxs, just the g+. But didn't you have to cut the sides of the chassis down or something to make the MF blocks fit??? You don't need to do this on the G+. That tells me the MF blocks are lower......

So, as I understand it
MF LRC blocks= Low Roll Center
MF LRC blocks shimmed .060 = Mid Roll Center
Losi LRC blocks= Mid Roll Center
Losi HRC blocks= High Roll Center
JeffC is offline   Reply With Quote
Old 02-24-2003, 08:31 PM   #5497
Gus
Tech Initiate
 
Join Date: Jan 2003
Location: CA
Posts: 31
PRP shock tower question

On the rear PRP shock tower... after installing this, the camber links seems to be crooked when i have the arms in the middle setting. Meaning when looking from the top, the links seem to angle backwards... (the inside pivot on the shock tower is much more forward compared to the pivot on the hub / \ ). Will this affect the handling of the car? Any fix or mod for this?

Thanks in advance

Last edited by Gus; 02-25-2003 at 08:49 AM.
Gus is offline   Reply With Quote
Old 02-24-2003, 09:15 PM   #5498
Tech Regular
 
Join Date: Sep 2001
Posts: 396
Default

JeffC - Thanks for that, other people have been getting at that, and I'd kind of already figured it out, but that is the clearest way i've seen it explained.

Any ideas about the 3 deg anti dive ?
sleek the elite is offline   Reply With Quote
Old 02-25-2003, 05:27 AM   #5499
Tech Elite
 
Join Date: Sep 2002
Location: Northern VA
Posts: 3,538
Trader Rating: 4 (100%+)
Send a message via AIM to munrath
Default

Quote:
Originally posted by jjmudd
Could someone please explain what the forward ackerman with the bell-cranks fliped is supposed to do in the G+.
It allows for smoother steering, but more aggressive. I've tried moving the arms and bell cranks up and flipping the bell cranks, however, it was just to hard for me to drive. IMO

Mark
__________________
Tekno RC (RTM) / RadioPost / Tekin / Pro-Match Racing / AKA / PT Racing Oils/Diff Lube

Races for 2015:
PNB, AMS, E-Nats Warm-up, E-Nats, LCRC North East Challenge, RAC, LCRC Halloween, Badlands, ROAR Region 2 Series, and Local Club Racing
munrath is offline   Reply With Quote
Old 02-25-2003, 07:56 AM   #5500
Tech Master
 
ChristopherKee's Avatar
 
Join Date: Feb 2002
Location: Northern Virginia
Posts: 1,005
Trader Rating: 28 (100%+)
Default

I have to agree with Unrath on the flipping, moving the bell cranks. I drive the XXX-S for the smoothness. Moving the bell's for ward and flipping them makes it feel more like my TC3 giving it, for me, no advantage.


tufferwilde -

Measure your G+ front block. It is HIGHER than the MF and LOWER than the high roll block. Yes it's plastic, but it is a MID roll block for the front. The rear block is the same size as my MF real low roll center block. So, I'm not mistaken.
__________________
***
ChristopherKee is offline   Reply With Quote
Old 02-25-2003, 08:01 AM   #5501
Tech Master
 
ChristopherKee's Avatar
 
Join Date: Feb 2002
Location: Northern Virginia
Posts: 1,005
Trader Rating: 28 (100%+)
Default Quote from Todd Hodge

Todd Hodge says:

"The low front roll center is pretty much a mid roll center so there is no need to put the washers under it"

Here is a link to his post
__________________
***
ChristopherKee is offline   Reply With Quote
Old 02-25-2003, 08:51 AM   #5502
Regional Moderator
R/C Tech Charter Subscriber
 
Join Date: Nov 2001
Location: IRT #122
Posts: 3,364
Default

KEE..... where did you get your shock mounts? the quickie ones
Ko Racer is offline   Reply With Quote
Old 02-25-2003, 09:00 AM   #5503
Tech Addict
 
tufferwilde's Avatar
 
Join Date: Sep 2001
Location: Whereabouts Unknown
Posts: 530
Default Crow tastes good!!!

ChristopherKee -

It would appear that you are correct!! Looks as though I had better go and measure them next time I have the car apart! Gee.... good thing I took the time to copy my Cleveland setup on to the new car.... now that the car pretty much has high roll center up front! DOH.... I guess that would explain the amount of steering that the car has!

I do find it interesting though that Losi packages the parts as LRC... and that the manual has none of the info on them!

As for flipping the bell cranks - you guys are exactly correct... this will smooth the steering out some.... but I have found that the car felt better on the track with the cranks in the forward ackerman hole in standard direction.


Wilde
__________________
Trackside Hobbies and Raceway: www.tracksideraceway.com
Novak Electronics: www.teamnovak.com

Last edited by tufferwilde; 02-25-2003 at 09:09 AM.
tufferwilde is offline   Reply With Quote
Old 02-25-2003, 10:05 AM   #5504
Tech Elite
 
Join Date: Sep 2001
Location: Norman AR.
Posts: 1,954
Send a message via AIM to ZER01
Default Re: PRP shock tower question

Quote:
Originally posted by Gus
On the rear PRP shock tower... after installing this, the camber links seems to be crooked when i have the arms in the middle setting. Meaning when looking from the top, the links seem to angle backwards... (the inside pivot on the shock tower is much more forward compared to the pivot on the hub / \ ). Will this affect the handling of the car? Any fix or mod for this?

Thanks in advance
You can help alleviate that problem by using the shortest ball stud on the tower, I noticed that with my PRP towers when I used titanium robinson-racing ball studs(they were longer than the stock chrome ones). The only other option to help straighten that link out is by mounting the rear arms full-forward. As far as how it will affect the handling, I can't find any documentation on how angling the upper-camber link horizontally in either direction will alter the handling of the car. That was a good question Gus.
ZER01 is offline   Reply With Quote
Old 02-26-2003, 01:39 AM   #5505
Gus
Tech Initiate
 
Join Date: Jan 2003
Location: CA
Posts: 31
Default PRP shock tower

Proudwinner: thanks for the suggestion on the shock tower. I tested the car today with the camber link at that angle. It didnt affect the car. Im glad I bought this set.... it has alot of tuning options!!!
Gus is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
2007 / 08 1/8th MNL Buggy and Truggy National Series Race Danny Teh Malaysian R/C Racers 856 01-04-2009 08:04 PM
Losi xxx 2wd connyw R/C Items: Wanted to Buy 10 10-31-2008 04:31 PM
NITRO SELLOUT!!! CRT.5**XXX-NT AD1**XTM XCELLORATOR** Novak GTX with BATT duneordie R/C Items: For Sale/Trade 12 06-27-2008 07:28 PM
XXX Parts, B4 jelly Australia For Sale/Trade 10 06-22-2006 07:13 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 01:21 AM.


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

SEO by vBSEO 3.5.0