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Old 05-02-2014, 04:35 PM   #301
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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.
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Old 05-02-2014, 08:45 PM   #302
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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.

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Old 05-03-2014, 06:45 AM   #303
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@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.
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Old 05-03-2014, 07:24 AM   #304
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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
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Old 05-03-2014, 07:30 AM   #305
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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.
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Old 05-03-2014, 07:36 AM   #306
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Quote:
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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.

It might be a good idea. Traxxas makes a teflon washer or shim that is used in the Slash and other vehicles.
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Old 05-03-2014, 07:38 AM   #307
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yes the bladder seals the top.
no foam above the bladder, all that does is increase rebound which you dont want.
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Old 05-03-2014, 07:44 AM   #308
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Quote:
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It might be a good idea. Traxxas makes a teflon washer or shim that is used in the Slash and other vehicles.
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.
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Old 05-03-2014, 07:50 AM   #309
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Quote:
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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.
That's good to know. Thanks.
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Old 05-04-2014, 02:37 AM   #310
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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.
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Old 05-04-2014, 07:49 AM   #311
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start with a 24t, that will give you 7.08fdr, check your temps and go from there.
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Old 05-04-2014, 08:26 PM   #312
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What would be the best pinion size with a 21.5T motor for racing in the novice class?

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Old 05-04-2014, 11:13 PM   #313
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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.
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Old 05-05-2014, 09:15 AM   #314
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what about for 17.5? what can i start out with?
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Old 05-05-2014, 10:11 AM   #315
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Quote:
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what about for 17.5? what can i start out with?
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.

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