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Old 03-27-2011, 09:05 AM   #2506
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When using the spec r gear diff, where do I put the shims to stop the diff from rocking back and forth between the bearing holders, and what shims do i use? Thank you friends!
they are the same shims that HPI sells for shimming all their diffs..

z891 - Washer 10x12x0.1mm (Copper)
z892 - Washer 10x12x0.2mm
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Old 03-27-2011, 09:31 AM   #2507
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I tried it today, really good, operation and installation are perfect, no oil leak.

http://www.rctech.net/forum/attachme...1&d=1300471487

Any preparation work for the gear diff?
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Old 03-27-2011, 09:33 AM   #2508
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Its a good tuning option that works very well in lower traction conditions, makes the car more stable and slightly more steering.
Tamiya, or wait for the new HB ones

What thickness of shims shld be placed on the steering side when using the tamiya knuckles?
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Old 03-27-2011, 10:46 AM   #2509
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Any preparation work for the gear diff?
Must smooth the gears and differential cases with sandpaper.
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Old 03-27-2011, 10:53 AM   #2510
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What thickness of shims shld be placed on the steering side when using the tamiya knuckles?
None thickness, just turn one of the two steering block bushing (#75122)
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Old 03-28-2011, 12:41 AM   #2511
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anyone knowing wat spring (brand n color rate) andy was using during the last round of the ETS? I saw both front n rear are white springs....certainly not the HB springs!
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Old 03-28-2011, 12:59 AM   #2512
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anyone knowing wat spring (brand n color rate) andy was using during the last round of the ETS? I saw both front n rear are white springs....certainly not the HB springs!
Could be Yokomo's spring....they have the same diameter and fit perfect.
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Old 03-28-2011, 01:42 AM   #2513
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question for the HB lads,

I borrowed a set of springs from a local racer yesterday which he said were HB silver, which I have been trying to hunt down, but they were black with silver "dabs" of silver, I orderd some, and I see they are Hara matched "grey" springs. they worked great for me, just wondering if they are infact the same springs as the hpi/hb silver?

regards, Jack
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Old 03-28-2011, 01:51 AM   #2514
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question for the HB lads,

I borrowed a set of springs from a local racer yesterday which he said were HB silver, which I have been trying to hunt down, but they were black with silver "dabs" of silver, I orderd some, and I see they are Hara matched "grey" springs. they worked great for me, just wondering if they are infact the same springs as the hpi/hb silver?

regards, Jack
They are not the same. The newer "silver" springs are softer compared to the older silver spring
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Old 03-28-2011, 01:51 AM   #2515
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Could be Yokomo's spring....they have the same diameter and fit perfect.
Thx!
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Old 03-28-2011, 03:12 AM   #2516
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They are not the same. The newer "silver" springs are softer compared to the older silver spring
you mean the Atsushi Hara black "grey" is softer? I noticed some of the HPI springs listed were 1.2 and other 1.6
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Old 03-28-2011, 03:30 AM   #2517
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The hara grey springs are much softer than the HPI silvers, dont forget you are comparing progressive vs linear
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Old 03-28-2011, 03:50 AM   #2518
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Originally Posted by RockyMania View Post
anyone knowing wat spring (brand n color rate) andy was using during the last round of the ETS? I saw both front n rear are white springs....certainly not the HB springs!
They also could be Tamiya white-colored springs....

I think someone posted this before, a few pages back
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Old 03-28-2011, 04:14 AM   #2519
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Quote:
Originally Posted by Jack2 View Post
question for the HB lads,

I borrowed a set of springs from a local racer yesterday which he said were HB silver, which I have been trying to hunt down, but they were black with silver "dabs" of silver, I orderd some, and I see they are Hara matched "grey" springs. they worked great for me, just wondering if they are infact the same springs as the hpi/hb silver?

regards, Jack
The spring HPI/HB #5543 (Silver) are available in two colors: silver/chrome and black, but they are of the same rate(16,9 lb), it only changes the color finish.
The Hara springs have a different rate, although the identifier color is the same.

http://www.rctech.net/forum/attachme...1&d=1301310773
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Old 03-28-2011, 04:50 PM   #2520
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Default 10.5 Gearing Help

Our asphalt season is starting this weekend and I need a little help with gearing. Track size is @ 150' x 80', motor 10.5. What would be a good starting FDR?
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