Right, Just got back from a good practise session at our local track. Had a chance to run through a load of settings, and also ran two different classes in the same evening (5cell mod and 10.5/LiPo). Thankfully, given the track was only laid this evening, there was plenty of grip from the off. We normally spend a good hour skidding around before the grip comes up.
Started out with the 5cell, as I still had it mounted in the car from last weekend. Kept a similar setup too (slightly lower roll centres, and added anti-dive to the front), and the car felt good, although still struggling a little for steering.
Decided to see what Viktor Wilcks setup from the DHI was like (Here
, although I used Much More 450 and 550 oils, instead of the Losi oil). I'll admit, I was really suspect about how that setup worked, as every time I've taken the bars off the car, it's felt, well, shite... how wrong was I!
Simply put, the car was very good, loads more steering, and just felt like it was carrying speed really well. I guess that reducing the amount of droop helped compensate for the lack of bars. If anything, it was a little sliddy if I chucked the car in. Not snappy, but a progressive slide. Maybe slightly lighter rear oil (say 500wt) might do the trick to stop that, but if I nailed the line right it was awesome.... sufice to say, I'm a little hooked on modified currently
So, happy with how the car was in mod, thought it was about time to throw in my 10.5 and LiPo, and get ready for tomorrow. Also brought made sure the car was up to class legal weight (1500g, rather than 1400ish)... and this is where it gets interesting.
It seems that with the extra weight on board, the car starts to wag/wave it's front wheels in the air when accelerating hard whilst turning.... not quick. Car also felt a little odd, snapping round if changing direction quickly, like it was hitting the bump stops on occasion. Pretty much, I put this down to the reduced amount of droop all round.
So came in, and adjusted the droop back to the previous level (5F, 4R on gauge), and went back out. No more wheel wagging... but urgh. Car lacked response, and just seemed to be rolling over on itself, like I had experienced before.
Cue next change, putting the bars back on
. Went to medium f/r... now we're talking. Much better, carrying good corner speed, and felt much like with the 5cell pack in...
Makes me think that with a lighter car, you can get away without running the bars, and use less droop to compensate. Figures, as a car with a lower amount of weight is going to roll less.
When going to 6 cell... it's better to use the bars, with a little more droop.
I'm going to make up a pair of shocks with 500wt for tomorrow, and try them on the back of the car. Also going to run through the front shock mountings, see if I can see any difference between holes 1 and 2 on the arms.
Still, good thing is, I know how well that will translate to my stock setup next weekend (3 classes in 3 weekends, with the same car... is that wise??
). I'll keep it as is, just whack the roll centres right up, and throw in a one way... easy
I would also like to try some front arm sweep in preperation for next weekend as well, but if I want to do that, I've got to switch to C/B on the front, and I wonder if that might be too narrow. Althoughm, having said that, have heard good things about that combo on the front end... right Nathan?
I've got a Serpent 3.0 block for the S400 on the way, which is the same width (near as dammit) as a C block, so next weekend I'll play with D/C and C/C if I need more steering on a big track.