September 09, 2010, 12:16:11 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Search Calendar Login Register  
Pages: [1]   Go Down
  Print  
Author Topic: Indoor Astro-track BRCC  (Read 564 times)
Lowie
Sr. Member
****

Karma: +4/-0
Posts: 294


ldglap@hotmail.com
View Profile
« on: December 24, 2009, 12:02:52 PM »

Setup for Indoor Astroturf Offroadtrack of BRCC (Charleroi, Belgium)

High grip mainly but some less, what makes it difficult where the grip changes. Some major jumps but also, and important, also a series of short, steep bumps.

MODS:
pushrod-mod,
stickpack
droopmod: rear: new drilled holes in the shocktowers: +2mm, shockshafts showing 17mm
              front: added 3mm washer in the shock, 2,5mm cut off ball end and shaft only 14mm showing
Anti-rollbar: extra medium hole drilled on all A-arms.

FRONT:
height: 16mm
shocks:
   piston 2 holes
   Precompression + blue
   35wt (losi)
A-Rbar: medium
Tires: Schum MiniSpikes Yellow (worn out!!) with cut 2 outer and 1 inner row of spikes.
Toe-out: 1 - 2mm
20grams of lead under shocks
Caster: full back
Camber: 2°

REAR:
height: 23mm
Tower middle hole
Shocks:
   piston 2 holes
   precompression + yellow
   30 wt (losi)
A-Rbarr: stiffest.
tires: Schum MiniSpikes (worn), cut 2 outer and 1 inner row of spikes
Toe-in: 3°
Camber: 2°
Hub high (lower hole)

GENERAL:
Spektrum
MRT personal transponder
Rear wing 17cm, 1cm gurney
Front wing: 2mm washers under rear part.
Lipo CS 5200mAh (30C?)
Tekin RS Pro
motor CS 6.5 sensored.

!! all this with very worn Shum MiniSpikes Yellow. When i tried some new ones, even cutting away several rows of spikes, the car still had some griproll.
I might want to try some Schum Minispikes blue (which i had not when training).
I also tried Schum Staggered ribbs in the front (what a lot of 2WD AND strangely, also lots of 4WD-drivers use on the Schum Cat and B44) but that made the car twitchy and nervous.
Spikes are the way to go with a Pred.


! Also I found the car a bit better with the modded front hubs (lowered); smoother in the turns.


[edit]
last minutes changes, after yesterdays training:
higher in the front: from 16 to 18mm
made the car go easier on the bumps, but lost some traction and steering.
I then removed both rollbars (which i usually never do ?! ) .. and I gained some traction again + even better on the bumps + easier to drive on the changing-grip-section of the track. Don't know why, but it helped. (Can someone explain?)
I do want to test out with some Schum MiniSpikes Blue in the front though.

And I also want to try out with more lead in the car, making it heavier.
« Last Edit: December 25, 2009, 10:36:07 PM by Lowie » Logged

listen, learn, think  ... before you say, write
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC
AF316 theme by Fedhog
Valid XHTML 1.0! Valid CSS!
Page created in 0.109 seconds with 20 queries.
 
website owned and operated by Kev Lee / InsideLine Racing

MKPortal ©2003-2006 mkportal.it