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Old 08-31-2015, 05:31 PM   #6781
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hey guys im new to onroad and I was wondering what gearing to run? im running usgt(21.5) on a small carpet track. I would like to only run 48 pitch
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Old 08-31-2015, 11:36 PM   #6782
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hey guys im new to onroad and I was wondering what gearing to run? im running usgt(21.5) on a small carpet track. I would like to only run 48 pitch
I run my S411 in USGT with 48 pitch gears. I found the best gearing is 72-tooth spur with a 36-tooth pinion.
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Old 10-03-2015, 10:14 PM   #6783
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Still trudging along with my 2.0 build...
I thought I was pretty much ready for the setup station but I just noticed that I'm going to need some serious therapy before I figure out how to install the motor to the motor mount. I was planning on running 92T/46T (64P) but the spur gear gives me no wiggle room to put the two M3x8 screws for the motor. Any help is appreciated. I'm running the low traction mount BTW.

Edit: I'm reading some old posts that speak of this issue. Can someone recommend a pinion/spur combo in 64P that can give me an fdr of 3.7 to 4.2. 64P preferred but i'd consider 48P if madatory

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Old 10-03-2015, 10:46 PM   #6784
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Still trudging along with my 2.0 build...
I thought I was pretty much ready for the setup station but I just noticed that I'm going to need some serious therapy before I figure out how to install the motor to the motor mount. I was planning on running 92T/46T (64P) but the spur gear gives me no wiggle room to put the two M3x8 screws for the motor. Any help is appreciated. I'm running the low traction mount BTW.

Edit: I'm reading some old posts that speak of this issue. Can someone recommend a pinion/spur combo in 64P that can give me an fdr of 3.7 to 4.2. 64P preferred but i'd consider 48P if madatory
You'll need the v3 motormount to run that FDR. P/N 401601. Probably you'll get no less than 4.5 on the v2 mount.
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Old 10-03-2015, 11:13 PM   #6785
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You'll need the v3 motormount to run that FDR. P/N 401601. Probably you'll get no less than 4.5 on the v2 mount.
thanks dan! the help is appreciated. i plan on running 17.5 blinky. is there a certain spur gear size that will best suit me around 3.7 to 4.2 FDR. i've been looking at the serpent gear chart on the 2.0 setup page. are all those listed combinations sure to fit the v3 mount?

http://www.petitrc.com/reglages/serp...ng-Springs.pdf
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Old 10-03-2015, 11:19 PM   #6786
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thanks dan! the help is appreciated. i plan on running 17.5 blinky. is there a certain spur gear size that will best suit me around 3.7 to 4.2 FDR. i've been looking at the serpent gear chart on the 2.0 setup page. are all those listed combinations sure to fit the v3 mount?

http://www.petitrc.com/reglages/serp...ng-Springs.pdf
Yes pretty much. For 17.5 blinky you need to run a small spur. I prefer 48dp in a touring car so something like a 68/34 would be a good starting point giving an FDR of 4.0 The 411 has a 2:1 internal ratio making FDR calcs super easy!
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Old 10-03-2015, 11:54 PM   #6787
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Yes pretty much. For 17.5 blinky you need to run a small spur. I prefer 48dp in a touring car so something like a 68/34 would be a good starting point giving an FDR of 4.0 The 411 has a 2:1 internal ratio making FDR calcs super easy!
thank you for the help! i'll be ordering the v3 mount and some new gears ASAP. i cant wait to get this car on the track...
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Old 10-04-2015, 09:46 AM   #6788
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Originally Posted by swerv512 View Post
Still trudging along with my 2.0 build...
I thought I was pretty much ready for the setup station but I just noticed that I'm going to need some serious therapy before I figure out how to install the motor to the motor mount. I was planning on running 92T/46T (64P) but the spur gear gives me no wiggle room to put the two M3x8 screws for the motor. Any help is appreciated. I'm running the low traction mount BTW.

Edit: I'm reading some old posts that speak of this issue. Can someone recommend a pinion/spur combo in 64P that can give me an fdr of 3.7 to 4.2. 64P preferred but i'd consider 48P if madatory
On the early cars you had to do the screw access thru a hole in the spur gear, if the spur gears you have don't have a hole, you can simply drill one. Its a tight fit and very limited. Also in that case you may want to look at using the button head screws instead of the cap screws to hold the motor in place, reason is, generally the shaft for the wrench is a smaller diameter for the button head screw, so you can access the hole in the spur easier.
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Old 10-04-2015, 10:05 AM   #6789
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thank you for the help! i'll be ordering the v3 mount and some new gears ASAP. i cant wait to get this car on the track...
No worries. Enjoy the car it's really good. I love mine
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Old 10-04-2015, 07:25 PM   #6790
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Thanks. I have the v3 mount, 69T spur and a few pinions on order.

In regards to suspension, the 11mm recommended shock shaft length feels long. I feel the top nut pushing against the bladder when fully compressed. Is this how it's suppose to be? I'm trying to lower my rebound but I can get no less than 4mm without fluid level getting dangerously low...
BTW I drilled 1mm holes in the shock cap.
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Old 10-05-2015, 04:05 AM   #6791
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Originally Posted by swerv512 View Post
Thanks. I have the v3 mount, 69T spur and a few pinions on order.

In regards to suspension, the 11mm recommended shock shaft length feels long. I feel the top nut pushing against the bladder when fully compressed. Is this how it's suppose to be? I'm trying to lower my rebound but I can get no less than 4mm without fluid level getting dangerously low...
BTW I drilled 1mm holes in the shock cap.
Ok. I think you'll have the white membranes in the 2.0 kit. These were always an issue to get less rebound on as the membranes were quite deep and stiff. The 11mm is fine as the actually shock travel when installed and racing isn't that much and you won't find any issues. The best way to get the least amount of rebound is use a 2mm caster clip on the shock shaft, overfill the body with oil. Install the cap almost all the way tight with the shaft fully extended. Push the shaft in slowly and let the oil escape. Hold the shaft against the clip and tighten the cap. That should work.
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Old 10-06-2015, 07:34 AM   #6792
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Thanks Dan! That shock tip actually worked. Now i got a nice smooth rebound on all four shocks. Waiting for my v3 mount and gears which should come today or tomorrow.

I wound up buying some 3x8x1 durango aluminum spacers to mount my futaba servo because the 3x5x1 serpent spacers would slide inside the servo mounting holes. Then i had to dremel the durango spacers down on the lower inside mount because they were protruding out a tad and rubbing the belt.

Has anyone had issues with the belt rubbing the servo mount? This car has such low tolerances. I might end up shimming the spur gear away from the servo mount to get a tad more clearance.
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Old 10-06-2015, 07:48 AM   #6793
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Originally Posted by swerv512 View Post
Thanks Dan! That shock tip actually worked. Now i got a nice smooth rebound on all four shocks. Waiting for my v3 mount and gears which should come today or tomorrow.

I wound up buying some 3x8x1 durango aluminum spacers to mount my futaba servo because the 3x5x1 serpent spacers would slide inside the servo mounting holes. Then i had to dremel the durango spacers down on the lower inside mount because they were protruding out a tad and rubbing the belt.

Has anyone had issues with the belt rubbing the servo mount? This car has such low tolerances. I might end up shimming the spur gear away from the servo mount to get a tad more clearance.
Ive never had issues with the belt rubbing. Actually on my cars the serpent spacers go down into the holes as they are supposed to as this makes a solid mounting for the servo. You can use some facing washers to adjust the servo spacing. On my Sanwa servos I don't actually need any spacers as the servo fits perfectly with just the spacers inside the holes.
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Old 10-06-2015, 09:15 AM   #6794
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I put some little flat washers over the servo ears to help hold it down and they stick out just enough past the servo mount to rub the belt. I dremeled the washers back to flush with the servo mount and don't have any problems.
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Old 10-09-2015, 07:52 AM   #6795
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Wow. After almost two weeks my roller is finally finished. Completed my 2.0 build last night. It's scary soldering connections after almost a decade lol. Couldn't have done it without this forum (and petit lol). Thanks for all the help and tips guys. All i have left is to paint the body tonight and I'll be hitting the track for the first time in almost ten years. So much has changed but still remained the same. I'll post a pic once the body is complete.
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