What should I get for the best lauch?

Tien S
0.7 Front | 0.6 in the Rear
Spring rate: 386lbs/inch front
402lbs/inch rear

Tien H
0.3 Front | 0.2 Rear
Spring rate: 358lbs/inch front
375lbs/inch rear


RS-R Downsprings
0.6" Front | 0.6" Rear
Spring Rate: 345lbs/inch front
417lbs/inch rear

 

you want a soft rear

so that the car squats when you launch

which allows it to get better traction

 

but.....
The shock must have enough rebound dampening to keep the rear "squated". Otherwise you get a pogo effect w/ a soft spring and little rebound.

The idea is a quick, aka soft, compression stroke to help weight transfer towards the rear. Then a slower, aka stiff, rebound stroke to allow the car to slowly return to height once the car has overcome interia vs available traction.

Ideally you would like to run a setup that allow seperate compression and rebound adjustments. However very few are available, and the few that are out are expensive.

I don't think anyone has done any testing to determine the idea drag setup for the Z, yet...

 

any guesses on how i should set my edfc.

0 front 14 rear??

i usually drive on 0 front 0 rear