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Old 07-22-2013 | 11:57 AM
  #8035  
rythby
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Joined: Jan 2011
Posts: 437
From: Pennsylvania
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Originally Posted by Blown up
The track we raced this weekend had a fun layout w/a couple mogul/burm obstacles that thru a twist into things. It was grooved in some sections and totally blown out w/powder and craters in others.
Anyway, only changes I made prior to the race were
-center diff from 10k to 7k
-front arm sweep from swept back to neutral 'middle of pills"
It seemed to gain a ton of initial turn in! Like way to much. I tried to tune it out w/expo, dual rate and finally turned down servo speed to 70% but nothing felt right.
I see all the other brand buggies running lt.blue rears, way heavier rear springs than I feel I can use on this because I will lose even more rear traction. I went back to lt.blue front/kyo yellow rear to try and gain rear traction and lose turn in.
That last sentence made me question my thinking about turn in... If I run real soft rear and real stiff front, would initial turn in get even more aggressive? like running a really stiff front sway bar does. It makes for twitchy aggressive steering but will add a push mid to exit. I couldn't tell if my car had a mid corner push because the initial was so aggressive, I could oversteer from the wind blowing.
I'm beginning to question the CSI pistons... I'm up to 45/37.5 in the heat,from the 27.5/20 recommended, it feels good by pushing down but if I drop it from 10 inches of the bench, it bottoms hard. Front and rear. I have AE 8x1.3's, are they any different than the KYO one's?
I want to apologize for the long a$$ post and being all over the place but I want to make this buggy work. Need some expert advise. BTW, I have 1.5 r block and +2mm hex's coming w/a bunch of other goodies.
1) what csi pistons are you running? I am running vport blues with 27 front and 25 rear. kyosho lt blue up front and kyosho orange in the back. car does not bottom out if I drop it at that height. I tried lt blue in the back but the car bounces too much in rough sections. I try to record the car so I can look and see if the rear tires are leaving the ground. Lt blues and it definitely was .

2) the front +2mm hubs work well, I like them

3) I wouldn't put anything lower than 7 in the middle diff. Unloads on the front tires too much.
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