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PR Racing - SB401R-T (1/10 4WD ST/Truggy)

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Old 03-31-2019, 07:55 AM   -   Wikipost
R/C Tech ForumsThread Wiki: PR Racing - SB401R-T (1/10 4WD ST/Truggy)
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Last edit by: billdelong
Please feel free to update this Wiki page to provide updates on recommended upgrades, tuning tips parts compatibility with aftermarket upgrades sources.

*** The wiki page should be short and concise, please link to a specific post with more detailed information if you need to contribute more than a few lines of text, thanks!

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Old 11-23-2019, 11:10 AM
  #106  
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Want to extend your tuning window on the 401R-T?

Consider upgrading to the rear aluminum hubs from the 401R which will allow you to reduce your roll center significantly on the rear end!

https://shop.thercproshop.com/pr-rac...rear-hubs.html







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Old 11-26-2019, 07:17 AM
  #107  
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Any carpet setup for this truck? I am building this truck for a race Friday and would like to have some pointers for carpet. No option parts. just whats in the box.
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Old 11-26-2019, 07:26 AM
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Originally Posted by JRSlash View Post
Any carpet setup for this truck? I am building this truck for a race Friday and would like to have some pointers for carpet. No option parts. just whats in the box.
about 4 posts up, I provided a setup for turf, ran that same setup at a carpet event once without having to make any changes
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Old 11-26-2019, 02:20 PM
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Originally Posted by billdelong View Post
about 4 posts up, I provided a setup for turf, ran that same setup at a carpet event once without having to make any changes
Have you had any issues? Any broken parts? Unfortunately the spare parts I ordered wont be here before raceday and Ill be heading out to the track without any spares...

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Old 11-26-2019, 02:35 PM
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Originally Posted by JRSlash View Post
Have you had any issues? Any broken parts? Unfortunately the spare parts I ordered wont be here before raceday and Ill be heading out to the track without any spares...
Knock on wood, I haven't broken anything on my 401R-T yet, taken lots of nasty tumbles and cartwheels, currently on my 2nd body and 3rd wing so far... stripped a spur gear once and recently started replacing pins the out drives and CVD barrels. Also replaced a gear diff case that I stripped out with my cordless screwdriver that I forgot to loosen the clutch. Took a while for all these maintenance issues to pop up, nothing more than normal wear and tear IMO.
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Old 12-07-2019, 12:28 PM
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Loving this PR SB401 Type R Great build, great quality. Yes I forgot the window mask. Made the best of it.










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Old 12-26-2019, 09:59 AM
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Next race day is New Years Day, just mounted up some new Rip Tides on my 401R-T and can't wait to try them out!





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Old 12-27-2019, 06:05 PM
  #113  
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Originally Posted by billdelong View Post
Want to extend your tuning window on the 401R-T?

Consider upgrading to the rear aluminum hubs from the 401R which will allow you to reduce your roll center significantly on the rear end!

https://shop.thercproshop.com/pr-rac...rear-hubs.html







in my opinion probably the best upgrade available for it at the moment. Much better tuning window all around compared to the stock rear hubs. Plus more than likely will last the lifetime of the vehicle.
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Old 12-28-2019, 10:31 AM
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Heads up that many of the dealers will soon start carrying updated "spring clips"

This is a big deal for me, because I use thread lock on the center CVD's and have to remove the clips every time I do maintenance in order to "hammer out" the internal diff pinion once the center shaft is removed from the CVD assembly... typically the thread lock still holds the parts in place even after I remove the set screw and it requires a few light taps to get it to pop free.

I have actually been using the ER-14 spring clips and they are a direct fit for those who need an alternative option.

www.pr-rc.com/pdt_view2.asp?sn=1694









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Old 01-02-2020, 02:01 PM
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Default Clay set up

Looking for high bite clay set up for truck
saw some 30k-60-20
thatís turf? No?
I have the 401 buggy n Iím at 10-100-7
should I just double for truck to start
20-250-15?
thanks
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Old 01-02-2020, 03:05 PM
  #116  
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Here's my setup for medium traction dirt, if I run 5K in the center diff the car will do wheelies on every straight... 4K in the center diff is the sweet spot for me, but the front tires tend to balloon as they unload, but it works well for my driving style:

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Old 01-03-2020, 07:41 AM
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Thank you
seems low in center tho
my last car was xray n we ran 600k or 1mil
n the tekno guys run 30-60k?
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Old 01-03-2020, 11:56 AM
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Yeah when I ran my ET410 on turf, I had 60K in my center diff, I think most guys are running around 15K in their TEKNO's on the dirt track, but the PR center diff is considerably smaller with a lot less fluid than the front/rear diffs, so I don't think it directly translates, at least not for our current track condition. Good Luck!
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Old 01-03-2020, 02:50 PM
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Originally Posted by billdelong View Post
Heads up that many of the dealers will soon start carrying updated "spring clips"

This is a big deal for me, because I use thread lock on the center CVD's and have to remove the clips every time I do maintenance in order to "hammer out" the internal diff pinion once the center shaft is removed from the CVD assembly... typically the thread lock still holds the parts in place even after I remove the set screw and it requires a few light taps to get it to pop free.

I have actually been using the ER-14 spring clips and they are a direct fit for those who need an alternative option.

www.pr-rc.com/pdt_view2.asp?sn=1694






In stock here
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Old 01-03-2020, 05:42 PM
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Originally Posted by FastPete View Post
In stock here
Awesome!

I just found the product page here... for some reason the search engine wasn't working for me so I had to manually scroll through all 9 product pages until I found it on the very last page. I think you're the first dealer in the US to get them in stock too, thanks!
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