Just had a run with my 417 yesterday, and thought I'd share it all
First of all, all throughout the night, I kept improving. I was running a 13.5 while the others were on 10.5 and I managed to keep up. I finished 3rd in the A main ahead of the regular guys driving a boostedd 10.5.
(All this even though my motor would go up to temps of 250degrees farenheit
! thats about 110 celcius ! It was crazy hot but ran fine
Anyway, I was running the softer springs, Blue front and Yellow rear and It worked much better then White/blue. That combination made the car slide more had harder to drive. The track is slightly tight and medium grip.
I had enough off-power steering, mid corner the car would stay stable even at high speeds, but one place where it could have improved a tiny bit was on corner exit. I guess changing the rear springs to blue (making it Blue all round) would have helped.
One thing which I noticed with the ball diff is that during a race if would loosen up a tad. So I would tighten it before the heat but at the end, it felt quite loose. Having the diff looser actually helped on corner entry and into chicanes, but as soon as I gave it the beans, the car was tail happy. (But that wasn't much of an issue because ther was only one corner where i could give it the beans. On the other hand, if it was on a bigger track, i might have had more sliding.
Saying all this, I didn't notice any slipping
The good thing is that the diff wouldn't loosen itself anymore after a certain stage, so it was ok.
So in the end I was extremely happy with the car. I actually used the Hot Bodies steering knuckles because my 417's knuckles were kaput, and it worked like a charm.
Next thing I'd like to try is the gear diff as people have been saying it's really good, and blue springs all round. I will also put some Xray C-hub/Knuckles because they seem to last longer apparently
I had one question though, I was wondering if I should cut the top deck link at the rear. I mean, I have a 417 top deck on which I cut the front bit (like 417X) but thats it. Should I cut the rear bit aswell (like on the 417X) ? In what conditions should I consider cutting it?
(I also run the cut motor mount, and since then, been feeling great improvement