Originally posted by Cartman
how can i loose wieght my mtx3 is 1890 grams (rubber tyres and futaba s9494 sevo's
Ugh! more than 180 grams of difference.... Your problem is focused on two very precise points of your car: Rubber tyres and front differential (no pun intended, but this is your main weight problem).
Let's see how can overcome this weight difference:
- Square hollow main and center shaft.
- 3Racing lightweight pulley adaptors.
- Square titanium screw set (>30 grams less only with this).
- Lightweight 1st and 2nd gear housings.
- Mugen titanium Pillowballs (lighter but softer, some break, not bend on crashes).
- Kawahara delring knuckle (comes with delrin screws if you're freaky with suspended weight).
- Titanium turnbuckles (I'm using some Yokomo that had lying on mine toolbox).
If not remember bad you installed some kind of plastic box for your receiver instead of the cover that came from stock. Bag your receiver in a rubber ballon (tamiya have some nifty ones) and put a little bag of silicagel with your receiver to absorb moisture than can be trapped (in rainy situations, put a second rubber ballon, but between first and second put some WD40). Don't know Futaba 9494 servos, so I assume that are of the same size as 9402/9450/9550 type (standard size servos).
You can shave some grams putting different servos, something like the 9250 model (rubbers don't put the same havoc to the servo as foams), so much probably will be happy with them (5Kg but shave about 15 grams only on one servo).
Forget anything form of aluminium that substitutes plastic (weights more and in some cases are harmful - pulleys that self sharpen and cut belts).
You can shave some grams too on the servo horns. Aluminium ones are nifty, but weight a lot. I use some from Du-bro (tough as hell, haven't broke one in years) if aren't available, you can source some good quality servo horns from Serpent.
Other forms of shaving weight in a cheap form is to eliminate battery switch and connect and disconnect with a battery connector like the old Multiplex ones.
Last but not least.... what kind of tyres/inserts/rims you use? choose some like the Team Sorex ones (very light and real stiff). This is one place where you can shave grams that roll (and this counts twice). But the best is to switch to foam series....
Just read my signature.
BTW: How was the weekend?