They went to 2 tubes because 1 tube doesn't work the same in both directions. You get more damping in compression than extension. With 2 tubes 1 is always in compression.

Why not just make the breathing hole at the end of the tube larger?

It's a product of surface area. As the tube compresses, the plunger's surface area within the tube increases, and as it extends, the surface area is decreased. Hence the necessity of two tubes.

I see, actually I thought of that right after I posted. Still, the change in area isn't actually that much compared to the total area. I can see there is an effect, but was it noticeable on track if you weren't one of the top guys?

if you are getting a difference between the tubes then there is either not enough lube in a tube, or too much of an earlier different weight lube. a q-tip will remove enough of the old lube so you aren't inadvertantly mixing weights. i don't think it is too anal to have a repeatable setup.

i like to follow the instructions from speed merchant. (i find in general that anything Bruce Carbone suggests for pancars is worth considering)

Im no expert but I just clean out the tubes with spray and dry them off. Then I fill the grooves with lube and sort of screw the damper into the tube so it keeps the lube in the grooves and then wipe off the excess.

got mine all put together now.. the new crc xti

damn that is nice, what servo you use ? 94971 seems very hard to find

Thanks, Its been a while since I've ran 1/12, but I found a airtinics 94145 sittin in my box that already had the ears broken off one side.. So it worked out perfectly..

Got it wired up and ready, what kind of rollout should I start with for a 17.5?

Matt

Hi guys, anyone that knows me will know that I like messing around, designing stuff anyway trying it out. Well, here are really a couple of pics of the new car I will be trying out once I have stripped it down and got my mate to seal the edges (he does a great job). Feel free to leave any comments if you wish, cheers, Chris.

Thats very narrow will it transfer enough side to side weight?

Dunno to be honest mate, I will try it out and see!

Width of the chassis has nothing to do with side to side weight transfer. That is solely a product of weight, cg height, speed and track width (width across the tires). A more central weight placement lowers polar moment of inertia (also called yaw moment). All else being equal in theory, it should make a car looser on entry (it will change direction more quickly) and tighter on exit (it will stop yaw more quickly). Again, all else being equal, it will have no effect on weight transfer.

question: will the 12R5 complte front end will fit the older team associated 12th scale like the 12L?