Originally Posted by
Italboy
Hi there
2 questions.
1. droop values
When looking at the std setup sheet, they say 2.5mm front and rear. Ohter set up sheets are also saying aroung 2.4 front and 2.2 rear. I find these values a bit strange. Chassis sitting flat on setup board and measurements have been done from setup board ground to the lowest point of the hub. With thes values I find the downstop travel a bit long. Or what do you think about?
2. setup for carpet
for other brands a lot of carpet std setup sheets are available, especially on petitrc site. For X20 '21 there almost sheets available for asphalt tracks. I know there are not a lot pro drivers who are racing this chassis. Maybe anyone can tell me a starting point for the X20 on carpet (alu flex, medium traction)?
Thank you all!
1. I need to review my setup sheet (unfortunately, haven’t been able to race this year), but I’m pretty sure I started around there. I’m also dead certain that I increased the droop up front to 2.0mm to get more weight transfer (and hence more bite) on corner exit. So although it may seem different compared to other cars, it works.
2. Hmm, I took a look at the default setup, and it seems that although Serpent has a separate Aluminum kit for the X20 ‘21, they didn’t really update the manual/setup sheet to reflect preferred carpet settings. I’m not sure why that is. I don’t have carpet tracks around me, but right off the bat, you will want to flip the steering hub insert to the raised position vs. the default lower position. Likewise, I suspect that you’ll want the hardest springs anti-roll bars - heck, I used those on a high bite asphalt surface that I last ran on. Because of the axle RC adjustment, I think some people have even experimented with using the front upper arms and steering hubs in the rear to have the same RC adjustments back there.
Anyway, I suggest that you look up “Serpent X20 ETS” on YouTube, where Felix Law went over some of Yugo Nagashima’s setup that he used at an ETS carpet event that they went to last year with the original X20.