Sakura Testing

 

So it was test time on a track for the Sakura D6. 

About 100 different attempts at alignment got me close. It's those 1/4 turn and 0.01mm adjustments that get the front end working, but it definitely needs better bearings to prevent some lockup at angle. but over time changes in spring rate and length may result in a better performing chassis. 

Roadside RC rear suspension mounts move the shocks a little bit too low meaning that the ride height is not manageable with the stock springs.

I was trying to get by with this setup. 

I replaced the originals with D-like ultra soft and a RC-926 helper, but its not really enough as I'm maxed out on spring length to support the rear motor. therefore I couldn't get the rear soft enough for grip, so...  added about 300g of extra weight (temporary tool placement ) on the plastic chassis I started to get close to where I needed to be. 

Since then I went through my large stash of old springs and found something very good and I'm back in control of stroke / suspension travel. 

Now it's just the massive active toe change at the rear ... -5 degrees toe in ~ +6 degrees toe out . you just have to let this do it's thing, but I find on off trottle near corner entry a bit un nerving. 

Still... for a cheap chassis, OTB performance is pretty damn good. (once you replace all the things mentioned in the previous post.) 

And in the end my desired surface and the target use with a group of beginners will be just fine.  

YD-2 RX was much better, until it's plastic wheel hubs/disk brakes broke yet again. I think that's about 6 sets that I've broken now.   

It's just a design flaw between the pin placement and clamping force to secure the wheel. Scale vs performance... we all know the trade off. 

This is the test location. The track was goat track.

It's a tight track, so remember to drive slower ,initiate earlier and from your 3rd lap you'll be hitting every zone every time.   Take the wide red zone line to extend every corner.