ZeeFlyingBrick

I just know I'm going to go home pop on the stock springs and get the measurement your getting and then feel like a total goof.

moparSRT

anyone adding shims between the pin and bearing ?? I had some play (more then I like) and added a 0.10mm shim on each corner.

pejota

iTrader: (12)

@moparSRT

Can I ask what are the advantages of running shocks like that? I have to admit my ignorance that I've never seen shocks built that way.

moparSRT

drilled cap + rsd bladder gives you zero rebound, you dont get trapped air getting compressed above the bladder.
shim under piston eliminate the play/slop, smoother shock
green slime helps lube and seal the o-ring

pejota

iTrader: (12)

Thanks!

That's what I was thinking. I guess the bladder prevents any leakage out of the top?

Did you place any foam above the bladder? I think I've some some AE shocks built that way but didn't realize they let air escape out of the top of the cap.

MD

iTrader: (136)

It might be a good idea. Traxxas makes a teflon washer or shim that is used in the Slash and other vehicles.

moparSRT

yes the bladder seals the top.
no foam above the bladder, all that does is increase rebound which you dont want.

moparSRT

the traxxas shim is 0.81mm, thats way to much, I used the 3Racing shim kit, a 0.20mm had zero play so I went with 0.10mm all the way around.

MD

iTrader: (136)

That's good to know. Thanks.

coderzone77

Hi all
I always did airplanes and helicopters and now my first try with a rc car.
I have the Sakura XI Sport and I installed stabilizer roll bars and ordered a xcar 120A esc and turnigy 7.5t motor.
Now, what pinion ? how many teeth ?
I am newbie so don't want a "monster"
thanks for any advice.

moparSRT

start with a 24t, that will give you 7.08fdr, check your temps and go from there.

CustomPC

What would be the best pinion size with a 21.5T motor for racing in the novice class?

Thanks

(0000000000)

iTrader: (2)

I typically run a FDR of 4.0 with a 21.5 Reedy Sonic. It's achieved through a 66t spur and a 33t pinion.

If you are starting out in novice class with the stock 81t spur, then I'd recommend throwing a 28t pinion to achieve a 5.8 FDR. Once you can handle the car, you can begin to gear lower.

Nego

iTrader: (107)

what about for 17.5? what can i start out with?

(0000000000)

iTrader: (2)

I also run my reedy Sonic in 17.5 with the same FDR of 4.0. Timing on both my 21.5 and 17.5 is between 30' and 40', depending on track conditions.

I do have a tornado fan on both. It's the pink versions.

Gotta love these Sakuras. Two cars, for under $200.