• Welcome to RCTalk! 🚀

    Join the #1 RC community where hobbyists connect, share, and get expert advice on RC cars, trucks, boats, drones, and more!

    • Friendly & passionate RC enthusiasts
    • RC tips & troubleshooting
    • Buy, sell & trade RC gear
    • Share builds & upgrades

Lst2 shocks and diff oil

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, and others.

Coach Z

RCTalk Addict
Messages
754
Reaction score
11
Points
123
Location
Newport, ri (mostly)
RC Driving Style
  1. Bashing
So I managed to drive me lst2 into a fence post at full pace this weekend and I've got some fixin to do :sick: ...... among other things i need to replace a shock shaft so I was wondering what weight oil to fill the shocks with on this truck. stock or change it to improve? I did a search but couldn't find a guide for rebuilding lst2 shocks. I also figured while I was at it to maybe swap out the fluid in the diffs but there seems to be conflicting info as to what weight oil to run, any suggestions for just bashing? Thanks in adavnce!
 
in my muggy i run:

shocks: stock springs and perch height, Losi 30w silicone.. going to upgrade to 35 or 40

diffs: front and rear 10,000w and center 5000.


when i rebuild my lst2, ill try the same less the trans. its a good setup but the lst's are a few pounds heavier.
 
I'll have to try that lighter weight, I've been running 50 and not really happy with it right now.

Any suggestions how to improve on power steering?
 
Zip-tie the battery to the front tower, and try 30k in the front diff and 10k in the rear.
 
30 wt in the shocks is a bit plush. 35 should be the ideal. maybe its me but won't heavier in the front decrease steering response?? 10k in both is plenty snappy. but when your flipping over backwards at launch more hookup is bad. :doh:
 
take out one of your servos and find out all of the numbers on it, mainly what your looking for is the strength of the servo and if its a high speed/torque. then go to your lhs or wherever you get your stuff and get two (because it has dual steering servos) identical servos that are more powerful and equal to or quicker than the stock ones. i highly reccomend a waterproof (youcan do that on your own if need be) METAL GEAR servo, you dont want stronger servos so you can just strip them on their first run.
 
Well the stockers are JR 590's:

Type: High-Speed Analog Race Servo
Torque: 70 oz/in @ 4.8V, 85 oz/in @ 6V
Speed: .18 sec/60° @ 4.8V, .15 sec/60° @ 6V
Dimensions (WxLxH): 0.73" x 1.55" x 1.46"
Weight: 1.6 oz
Motor Type: 3-pole ferrite
Gears: Metal

I'm thinking about JR 650's:

Type: High-Speed Analog Race Servo
Torque: 123 oz/in @ 4.8V, 142 oz/in @ 6V
Speed: .20 sec/60° @ 4.8V, .17 sec/60° @ 6V
Dimensions (WxLxH): 0.73" x 1.55" x 1.46" (39.4 x 18.5 x 37.1mm)
Weight: 1.6 oz (45.4 g)
Bearing: Single
Motor Type: Cored
Gears: Metal

Seem like a pretty good deal at about $45 each... Anybody have experience with these or a different / better setup?
 
I'm running a pair of jr 650's in my Aftershock.....Yes you will notice a difference in steering. With the truck just sitting there it will turn the tires lock to lock with no problem. The you can move one of the 590's to the throttle/brake position.

I can't wait to see how much better the steering gets when I get rid of the stock servo savers for a pair of Kimbrough hd's.
 
Last edited:
Sweet! just ordered up the 650's....so now what servo savers should I be running? Do you have a part # for those? Or are all servos the same siameter / spline pattern?
I know some of these questions are border line retarded but thanks for everyone's input.
Cheers:bow:
 
So I managed to drive me lst2 into a fence post at full pace this weekend and I've got some fixin to do :sick: ...... among other things i need to replace a shocks shaft so I was wondering what weight oil to fill the shocks with on this truck. stock or change it to improve? I did a search but couldn't find a guide for rebuilding lst2 shocks. I also figured while I was at it to maybe swap out the fluid in the diffs but there seems to be conflicting info as to what weight oil to run, any suggestions for just bashing? Thanks in adavnce!

And I still see some guys taking them to shops to have it done. I've got a pair of 76K 1302 "D"-Special Koni. I think this page will help you out, blindchickenracing.com/How_to/shockrebuild/shockrebuild.htm
 
Back
Top