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Old 10-16-2014, 09:23 PM   #3376
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Quote:
Originally Posted by big al View Post
Are those steering blocks an actual tamiya product? Or aftermarket?
Aftermarket.
These are the ones that I bought:

http://www.tqrcracing.com/shop/produ....asp?p_id=2731
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Old 10-20-2014, 05:07 PM   #3377
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???? It is spec-r....
I'm a bit confused. The chassis is from Spec-R but comes in an ID Products bag? Hmmm.
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Old 10-20-2014, 06:36 PM   #3378
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Just another data point... my S2 diff o-rings swelled up into donuts too. It felt fine when I assembled it initially, but the car had pretty severe understeer, so I tore the diff down to check. It wasn't so much that they were squeezing the outdrive axles, but they were coming out of their grooves and pressing on the 5x14 shims and causing a godawful amount of friction. Someone said TRF 5mm o-rings worked so those are on order...

Also the SPR010-SC screws do work on the HD Diff. As I mentioned before, the phillips head kit screws were falling apart almost instantly.
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Old 10-20-2014, 11:35 PM   #3379
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Originally Posted by DBM View Post
I'm a bit confused. The chassis is from Spec-R but comes in an ID Products bag? Hmmm.
Thats because its NOT a Spec-R made part. People just assumed :-)
Even on the Spec-R site it states ID Products as the manufacturer.
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Old 10-22-2014, 03:34 PM   #3380
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Originally Posted by 1101 View Post
Thats because its NOT a Spec-R made part. People just assumed :-)
Even on the Spec-R site it states ID Products as the manufacturer.
To me, it looked like an aftermarket item since it was listed under "iD products" on the specR site, but Jorge T said that it was a specR part. Unless iD products is a division of specR.

Oh well, it doesn't really matter.

I installed the chassis last night. All of the holes lined up perfectly. No additional shimming/removing of shims was required. A pleasant surprise is that this chassis is ~5mm narrower than the pro spec chassis (not including the servo mount protrusion on the pro spec chassis). The finish isn't as shiny on the new chassis, but that shouldn't affect the performance anyways.
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Old 10-22-2014, 07:02 PM   #3381
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What's the best web site to order parts? Thanks
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Old 10-22-2014, 07:15 PM   #3382
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Originally Posted by Infamous 1ER View Post
What's the best web site to order parts? Thanks
tqrcracing.com
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Old 10-23-2014, 09:20 AM   #3383
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Quote:
Originally Posted by funked1 View Post
Just another data point... my S2 diff o-rings swelled up into donuts too. It felt fine when I assembled it initially, but the car had pretty severe understeer, so I tore the diff down to check. It wasn't so much that they were squeezing the outdrive axles, but they were coming out of their grooves and pressing on the 5x14 shims and causing a godawful amount of friction. Someone said TRF 5mm o-rings worked so those are on order...

Also the SPR010-SC screws do work on the HD Diff. As I mentioned before, the phillips head kit screws were falling apart almost instantly.
I've had no problem with the screws, but I bought an additional diff for my 2 cars and it cam with hex drive screws.
The O rings were a big issue I just bought the x-ray ones.
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Old 10-23-2014, 02:17 PM   #3384
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Quote:
Originally Posted by Syxxstring View Post
I've had no problem with the screws, but I bought an additional diff for my 2 cars and it cam with hex drive screws.
The O rings were a big issue I just bought the x-ray ones.
Which gear diff did you get? (the S1 gear diff has different internal gears, seals, etc than the S2 gear diff).

Has anybody tried putting the S1 gear diff in the S2? Or vice versa? Were any advantages found? Any comments on which gear diff you thought was superior (in terms of drive ratio or not leaking or something else?

Also, tqrcracing only has internals for the S1 gear diff. Has anybody found a US source for S2 gear diff parts?
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Old 10-23-2014, 02:26 PM   #3385
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Default S1 center pulley and metal motor mount

Has anybody found a perfect way to install the center pulley in the S2 metal motor mount so there is no friction when the screws are tightened fully? The pulley shaft is longer than the width of the motor mount and the plastic bushings have flanges on them that can make a lot of drag.
Photos of your installation would be appreciated if you have them.
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Old 10-23-2014, 03:00 PM   #3386
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Either gear diff will fit either car.

Here's how I resolved the friction problem when the screws are fully tightened.

.
.
.
.
.
.
.
.
.
.
Wait for it...
.
.
.
.
.
.
.
.
.

I didn't tighten them fully.

For realz...

That and I mix and match the bushings. One white, one black. Or I sand down one bushing.

BTW, the flanges should be on the outside of the mount and will not touch the bearing inside the center pulley.

Last edited by .crispy; 10-23-2014 at 03:50 PM.
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Old 10-23-2014, 04:47 PM   #3387
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Here's how I did it. I used POM bushings but it works the same with the black kit bushings.
Flanges go on the outside with a couple of 7mm x .3mm shims. You want to be able to tighten the screw all the way without compressing the bushings and bulkheads. Done up this way my spur assembly has only .1mm of axial play and nothing rubs.
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Spec-R R1-20141023_154218.jpg   Spec-R R1-20141023_153830.jpg  
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Old 10-23-2014, 05:03 PM   #3388
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Quote:
Originally Posted by funked1 View Post
Here's how I did it. I used POM bushings but it works the same with the black kit bushings.
Flanges go on the outside with a couple of 7mm x .3mm shims. You want to be able to tighten the screw all the way without compressing the bushings and bulkheads. Done up this way my spur assembly has only .1mm of axial play and nothing rubs.
THANKS SO MUCH FOR THE FEEDBACK!
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Old 10-23-2014, 05:04 PM   #3389
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Quote:
Originally Posted by .crispy View Post
Either gear diff will fit either car.

Here's how I resolved the friction problem when the screws are fully tightened.

.
.
.
.
.
.
.
.
.
.
Wait for it...
.
.
.
.
.
.
.
.
.

I didn't tighten them fully.

For realz...

That and I mix and match the bushings. One white, one black. Or I sand down one bushing.

BTW, the flanges should be on the outside of the mount and will not touch the bearing inside the center pulley.
THANKS! I WILL PUT A LITTLE THREADLOCK ON ALSO.
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Old 10-25-2014, 03:22 PM   #3390
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Also, my pic is with a Kimbrough spur gear. If you have a wider spur, you might need to sand the bushings. With a narrow spur you might want shims between the bearings and the bushings.
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