Like Tree1Likes

Spec R S2

Old 06-10-2014, 07:41 AM
  #61  
Tech Master
iTrader: (36)
 
slakr's Avatar
 
Join Date: Jan 2007
Location: NC
Posts: 1,818
Trader Rating: 36 (100%+)
Default

Have one of these on the way for 17.5 Blinky TC.
Can anyone recommend a spur (manufacturer and number of teeth) and pinion (number of teeth) to help get me started?
Will be running on a medium sized outdoor asphalt track.
https://www.youtube.com/watch?v=0a9hI8BFbxo
slakr is offline  
Old 06-11-2014, 02:32 PM
  #62  
Tech Rookie
iTrader: (2)
 
Join Date: Aug 2007
Location: Orange, NJ
Posts: 15
Trader Rating: 2 (100%+)
Default Diff Problems

Confirmed ! Those orange o-rings in the diff swell up and make it tight
and notchy. I'm going to try the Spec-R X-Ring seals from the S1
diff.
jfle98 is offline  
Old 10-04-2014, 04:23 AM
  #63  
Tech Regular
iTrader: (2)
 
miles514's Avatar
 
Join Date: Nov 2012
Location: East of Manila, Philippines
Posts: 497
Trader Rating: 2 (100%+)
Default

what is the ideal spur/pinion (48P) set up for this on a large indoor track? TIA!
miles514 is offline  
Old 10-19-2014, 11:15 PM
  #64  
Tech Elite
iTrader: (29)
 
R3VoLuTiOn's Avatar
 
Join Date: Jan 2004
Location: Vancouver, Canada
Posts: 2,771
Trader Rating: 29 (100%+)
Default

Im using associated orange O rings now.

they leak really well, but diff performs awesome, and can last a few races before it needs to be refilled.

Been running the car in VTA / GT (Scale Spec) in Seattle, and its doing pretty well!
R3VoLuTiOn is offline  
Old 10-19-2014, 11:22 PM
  #65  
Tech Elite
iTrader: (29)
 
R3VoLuTiOn's Avatar
 
Join Date: Jan 2004
Location: Vancouver, Canada
Posts: 2,771
Trader Rating: 29 (100%+)
Default

Originally Posted by miles514
what is the ideal spur/pinion (48P) set up for this on a large indoor track? TIA!
I'd change it to 64 pitch to smooth it out.

Depends what class you're running?
R3VoLuTiOn is offline  
Old 10-19-2014, 11:57 PM
  #66  
Tech Fanatic
 
Join Date: Jul 2010
Location: Antwerp, Belgium
Posts: 877
Default

I'm using the tamiya TRF gear diff O-rings and my geardiff isn't leaking.
Very pleased about the car too.
addicted2blue is offline  
Old 10-20-2014, 07:05 AM
  #67  
DBM
Tech Fanatic
 
Join Date: Feb 2014
Location: Saskatoon, Canada
Posts: 911
Default

Originally Posted by slakr
Have one of these on the way for 17.5 Blinky TC.
Can anyone recommend a spur (manufacturer and number of teeth) and pinion (number of teeth) to help get me started?
Will be running on a medium sized outdoor asphalt track.
https://www.youtube.com/watch?v=0a9hI8BFbxo
Assuming the S2 uses the same center pulley/layshaft setup as the S1 and R1, I've had the best luck using 3racing spur gears. I run a 96t 64p in my R1 f I r 17.5 blinky, and 72t 48p in my S1 vta car. The 96t 64p in my 17.5 car allows me to run a good variety of ratios. I bought a Yeah Racing pinion set that has 41-46t pinions, and combined with the 86t spur, has been good for tiny to larg-ish indoor carpet tracks.
If you want to stick with 48p for outdoors, a 34t pinion will give you a 4.0 fdr which is a decent starting point.

Edit: I've also used Kimbrough spurs with ok results. They are a bit thicker than the 3racing ones so might have to pay with shims and spacers a bit. I also used tamiya ones and found them to fit much like the kimbrough, although the tamiya plastic seems a bit harder.
DBM is offline  
Old 10-20-2014, 02:14 PM
  #68  
Tech Adept
 
poeee's Avatar
 
Join Date: Sep 2004
Location: Geelong, Australia
Posts: 186
Default

Best spur I've used in my S1 is an Associated. It's a little thicker than the kit spur and takes up the play in the lay shaft.
poeee is offline  
Old 10-20-2014, 11:00 PM
  #69  
Tech Elite
iTrader: (29)
 
R3VoLuTiOn's Avatar
 
Join Date: Jan 2004
Location: Vancouver, Canada
Posts: 2,771
Trader Rating: 29 (100%+)
Default

Using a panaracer spur.

its about 8-10% of the cars value

The associated ones are really good also, bought a few cheap ones to run outdoors.
R3VoLuTiOn is offline  
Old 10-24-2014, 01:39 AM
  #70  
Tech Fanatic
 
Join Date: Jul 2010
Location: Antwerp, Belgium
Posts: 877
Default

Been testing my S2 on carpet with a 17.5T and the car was very fast.
I was only able to pull out an extra 0.2s on my fastest laptime cause the car was already very stable and carried a lot of corner speed at the start of testing.
I started with a FDR of 5.75 with a motor timing of 15° on my speedpassion V3 MMM and i ended my testing with the motortiming set at 10° and an FDR of 5.45.
Still searching for another 0.2seconds to hit my target, but i'm sure it's doable.
Need to upload the propper software to my reventon pro esc, still using a modified software and i need the stock1 software.
So far the car is a blast to drive.
addicted2blue is offline  
Old 11-17-2014, 02:52 AM
  #71  
Tech Rookie
 
Join Date: Nov 2014
Posts: 5
Default

Hello,

I got the s2 for my daughter racing car and it's running very well exept for the rear diff. The o-ring are way too big and give to much pressure inside the gears. Can somebody give me a link or references with suitables o-ring to solve the problem ?

Thanks.
TheRealBigJim is offline  
Old 11-17-2014, 04:10 AM
  #72  
Tech Master
iTrader: (3)
 
Join Date: May 2010
Location: Chi-Town West Burbs
Posts: 1,804
Trader Rating: 3 (100%+)
Default

Originally Posted by TheRealBigJim
Hello,

I got the s2 for my daughter racing car and it's running very well exept for the rear diff. The o-ring are way too big and give to much pressure inside the gears. Can somebody give me a link or references with suitables o-ring to solve the problem ?

Thanks.
I replaced the orange o-ring with the Spec-R X Rings. They seem a little small but have yet to leak (1 full race day).
mooby64 is offline  
Old 11-17-2014, 06:51 AM
  #73  
Tech Adept
 
Join Date: Jan 2011
Location: Switzerland
Posts: 192
Default

Originally Posted by TheRealBigJim
Hello,

I got the s2 for my daughter racing car and it's running very well exept for the rear diff. The o-ring are way too big and give to much pressure inside the gears. Can somebody give me a link or references with suitables o-ring to solve the problem ?

Thanks.
you can fix the problem with Tamiya TRF Diff Sealing O-Ring (red o-rings)
suits perfectly and no leaking problem at all.
Italboy is offline  
Old 11-18-2014, 12:06 AM
  #74  
Tech Rookie
 
Join Date: Nov 2014
Posts: 5
Default

Originally Posted by mooby64
I replaced the orange o-ring with the Spec-R X Rings. They seem a little small but have yet to leak (1 full race day).
Thank you i ordered some to test
TheRealBigJim is offline  
Old 11-18-2014, 12:09 AM
  #75  
Tech Rookie
 
Join Date: Nov 2014
Posts: 5
Default

Originally Posted by Italboy
you can fix the problem with Tamiya TRF Diff Sealing O-Ring (red o-rings)
suits perfectly and no leaking problem at all.
Hello,

thank you for your advice.

Are you talking about these one's :

rc-5mm-gear-diff-o-rings-42259
TheRealBigJim is offline  

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.