Your belt tensioner sounds a good idea as my guess is the belt on the none drive side slaps about at speed and causes the belt to jump resulting in a broken or stripped belt.
Belt doesnt jump, it fluctuates under power as there is nothing keeping the belt from moving in the gearbox other than the pulleys and those crap brass bushings which actually dont do anything. These were taken out by myself and also Jon Tucker (he qualified for the worlds with a ZXR) as they damaged the belts. The belt needs a bit of tension to stop the fluctuation as that can stretch the belt and bang it snaps whereas with a tensioner it keeps it all in place and less fluctuating means it stays pretty much perfect and lengthens the lifetime of the belt by several years, quite possibly youll get five years out of a belt if maintained correctly. Im lasting a bit longer than that on mine.
i understand what you mean with the rear end, but on the track the rear seemed rigid with not much roll and in the corners it skipped/bounced a little, in the slow corners the car wanted to hook.
ive been testing my car on high grip astro but want to mainly use it indoors at two venues with a hard rubber floor ( indoor running track ) and also carpet/polished gym floor.
I believe the back is too hard, first would go down a spring. Also would advise using a longer tie rod adjustment on the rear but not the longest setting and that way gives you more droop and also does make a difference on this car. A roll bar on high grip is needed as I only ever use it indoors. I would also set the car a bit lower so Ujs should not be level and be slightly under when on the track on the rear and also use a larger wing. Springs personally always go softer on the rear so me I would opt for trying associated silver but may go down to green on the rear with 30 weight and on piston size smaller than the front.
Front I use the top outer tie rod hole and use the blue steering with a zx steering plate as then you have zero bump steer. I know Jamie Booth preferred the ZXR angled steering plate but I couldn’t get on with it so down to you. Springs on the front start with associated blue but may go down to silver, personally I found Losi red works well on mine better than the blue or silver but my shocks are traxxas. Piston needs to be one softer than the rear which does sound weird but try it and see.
Front outer hole used on the front castor block and longer Ujs makes a huge difference so hope your using that.
ive been testing the car on astro using scumacher yellow mini spikes with medium inserts outside row cut off front and rear. Also i have medium and soft foams and soft rubber slicks which i was thinking of trying indoor.
Answer Blue inserts are what I use and on carpet and shiny floors I use mini pins but on astro yes mini spikes are fine. TBH inserts are really down to preference so go with what you feel suits you.
my set up so far is as follows....
FRONT
Option house shocks with zx5 fs piston 2-c, 35wt ae oil and original gold springs (maybe silver but i think gold as they look faded)
lower shock position is outside hole
upper shock position is 70mm apart (lots of holes to choose)
camber link on tower is top row 3rd hole in from outside.
been thinking about trying ae blue springs??
REAR
option house shocks with zx5 fs piston 2-b, 30wt ae oil and kit black springs.
lower shock position is middle hole Try outer as well
upper shock position is 75mm apart (again lots of holes to choose)
camber link on tower is top row outside hole
camber link on hub is middle hole top row.
rear brace is number 1 and position is as manual
been thinking about trying ae silver springs??
i do have the original black pistons with two holes and the red pistons with one square notch on the edge if they will be better to use?
I would like a roll bar but don't know were i could find one or if any can be made to fit from a current rc car...was thinking b44 or another one i seen which has little clips for mounting it No harm in trying, the softest one is the best to go with for this car
I will try to post some pics of my ZX on your thread this weekend so you can see my tie rod placement. Yes my car is set for carpet but youll get an idea from it. Also are you using any weight on the chassis as don’t forget the car was designed to carry roughly 220 grams more weight, so as your now using Lipos and this does change the characteristic of the cars handling. Mine ive addded 85 grams on either side but have the option of adding brass plates doen the middle between the lipos. Im testing my new chassis with these weights in two weeks time and will uipdate on it how it went with all the weight added and also without.
Where are you based again as I have forgotten.
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