Originally Posted by
Jerm13
So I pick up a used 4.2 about a month ago. As Im still deployed, I have been trolling the forums for hop-ups and set-ups and the like. I would like some input on a couple parts and also possibly a starting point for set up.
Track is medium to high traction and lap times are about 15-17 seconds. I will be running a Tekin RS Pro and 10.5 motor. Tires start at a bar style and wind up running slicks by the mains.
I am looking at the Avid Centering Motor mount spacer and the ESC center deck.
Being as the buggy is narrow already, putting some ballast weight on the RX side has always been the thing to do. I like the idea of centering everything as much as possible so that is why I am looking at these in particular.
For set up, my b4 was very low on rear traction so here is what I did.
Inner hole on ball studs with 3 washers, outer or middle hole on hubs, 2*toe with 1* AS in the rear.
Just wondering where I should start with the new kit as far as set up and advantages of the above parts?
For medium/high traction smallish indoor clay track I would start with the Cav Portland Spring Shootout setup --
http://www.petitrc.com/setup/associa...Hobby20130519/
What it doesn't say on that sheet is to run the carbon front arms, caster blocks, top plate and shaved u-brace -- stiffens things up considerably.
After getting the right tires/inserts, I would get that carbon, then go ESC deck. Last thing I would do is motor centering -- I have that mod, my son does not. Otherwise our cars are very close to identical and I can't notice that mine is more balanced.
Before springing for the AE shelf, etc, take a look at Vision RC's stuff -- very well thought out and executed carbon shelf, battery strap, chassis stiffener and steering rack. Prices are not bad either.
We raced the chassis stiffeners for the first time last week. I'm still half a second off the fastest guys in 17.5 but my son and I had our best night of racing in memory and it was because we were far more consistent than usual -- the cars seemed very predictable and were easier to drive. TQ went to a B4.2 with the stiffeners. So the stiffeners are staying in our rigs for the indoor season ...