just going through some older videos this morning... even better mod for those who'd missed it.. the cup on the bottom of the shock body is threaded on. cut the small center tube section out of 2 round neoprene/rubber servo grommets, makes the seals to install, flat side up, and thread the lower cup back in place just "finger snug" (do a little wet with oil of course). rear shocks 30wt, front shocks 80wt because they're shorter with much stiffer springs. while you're at it, use rotary tool to cut 1.5 turns off each spring, then needle nose pliers (2 pair?) to re-flatten the new ends. this softens the suspension so the buggy sits about 1/16 to 3/32" lower than fully stood stock (too stiff and bouncy, a little negative suspension travel and softness is GOOD!). no harm done, because you can spin the threaded spring stop collars down 1/8" anytime too.
12-5-18 went further with the Virhuck V-01 (thank you!), moved the steering arm down the servo output arm for more torque from stock servo, gave front lower A-arms the heat and twist so kingpin caster is closer to vertical, also replaced the plastic steering rods with ball ends + threaded rod. the ball ends have longer =O= tube sections on them, was a surprise they eliminated about all of the bump steer! still stock 390 motor, went 10t pinion, and 100mm tires instead of the stock 92mm. tires have slightly undersized foam in them so they're softer to about 1/8" depth. basically a 390 powered 12428 clone, all ball bearings and has the metal diffs, aluminum body panels. was a STEAL when they were just 42 bucks on fleabay. now they're about 140? all I got into it is 42+13 for set of tires/rims, another 5 for the 10t pinion, and a little time with simple cheap mods. the shocks after giving seals and oil, drop it a foot, no bounce, 18" just 1/4" bounce up front for being a little extra soft and bottoming TO bounce, is about right, accelerating the rear always squats a little and the front goes lighter anyway. it goes full flex travel pretty easily too with the spring cut mod (almost as much flex as Doomsday?!). with 10t pinion top speed is only about 9 mph (not much faster than the Doomsday Bug), but does it in 10-12 feet seems about right for trail crawling bouncing and climbing challenges, lots of torque at the wheels, enough wheel speed for some momentum to climb or hop. comparing Doomsday for it also being a little 1/12 390 powered crawler beast.
Clicky pen springs! Take cap off shock, extend shaft all the way down, drop in spring and snip off any the sticks above the shock body. Replace cap. Replace shock. Amazing difference.
I've got 3 of these q39's at the moment. Looking to upgrade the suspension on all for cheap ;) I have a tube of permatex dielectric grease laying around.. think that would be thick enough not to leak out? I was just gonna be lazy.. open the top of the shock, squirt a glob of grease in, and close it back up.
@@ShenRC thanks for the reply man! And I think I see what you're saying. I've been inside the shocks once before and it's just a Philips head screw where the Piston would be. My brother in law has some extremely thick (paste-like) grease he's saving for me to use in differentials. I'll give that a shot
Those WHEELS there the same as what's on the Coyote but in black. But will be interesting to see how the grease works but this is the problem with friction shocks.
Great job, man, thank you for the video just one question - I cannot find metal spare parts for my q39 will it work if I order the same parts designed for fy03 eagle-3 or wltoys 12428? did you have such experience?
i don't know if you know this but im goona ask the JJRC Q39 has a 40A esc FY-01 also have a 40A esc so do you know if the wltoys 12428 has a 40A esc too? a 540 (wltoys motor) uses 34a at max throttle
😊👍Hi thanks for stopping by, I am not sure on the amp rating of the esc on the wltoys 12428 to me they look the same but they may use higher amp rated parts in the esc in the wltoys to run the 540 motor.
@@leaflux_gaming5668 You need a lipo charger and a lipo buzzer alarm so you can run 2s lipo if you dont have any of those and never used lipo batteries then I would just run it with the stock battery.
thanks !! Get 10% off any order with coupon code SALE10
just going through some older videos this morning... even better mod for those who'd missed it.. the cup on the bottom of the shock body is threaded on. cut the small center tube section out of 2 round neoprene/rubber servo grommets, makes the seals to install, flat side up, and thread the lower cup back in place just "finger snug" (do a little wet with oil of course). rear shocks 30wt, front shocks 80wt because they're shorter with much stiffer springs. while you're at it, use rotary tool to cut 1.5 turns off each spring, then needle nose pliers (2 pair?) to re-flatten the new ends. this softens the suspension so the buggy sits about 1/16 to 3/32" lower than fully stood stock (too stiff and bouncy, a little negative suspension travel and softness is GOOD!). no harm done, because you can spin the threaded spring stop collars down 1/8" anytime too.
12-5-18 went further with the Virhuck V-01 (thank you!), moved the steering arm down the servo output arm for more torque from stock servo, gave front lower A-arms the heat and twist so kingpin caster is closer to vertical, also replaced the plastic steering rods with ball ends + threaded rod. the ball ends have longer =O= tube sections on them, was a surprise they eliminated about all of the bump steer! still stock 390 motor, went 10t pinion, and 100mm tires instead of the stock 92mm. tires have slightly undersized foam in them so they're softer to about 1/8" depth. basically a 390 powered 12428 clone, all ball bearings and has the metal diffs, aluminum body panels. was a STEAL when they were just 42 bucks on fleabay. now they're about 140? all I got into it is 42+13 for set of tires/rims, another 5 for the 10t pinion, and a little time with simple cheap mods.
the shocks after giving seals and oil, drop it a foot, no bounce, 18" just 1/4" bounce up front for being a little extra soft and bottoming TO bounce, is about right, accelerating the rear always squats a little and the front goes lighter anyway. it goes full flex travel pretty easily too with the spring cut mod (almost as much flex as Doomsday?!). with 10t pinion top speed is only about 9 mph (not much faster than the Doomsday Bug), but does it in 10-12 feet seems about right for trail crawling bouncing and climbing challenges, lots of torque at the wheels, enough wheel speed for some momentum to climb or hop. comparing Doomsday for it also being a little 1/12 390 powered crawler beast.
Nice looking truck Steve! Good Job on the shocks👍
Thanks I ran it and it did wonders to it! =)
Clicky pen springs! Take cap off shock, extend shaft all the way down, drop in spring and snip off any the sticks above the shock body. Replace cap. Replace shock. Amazing difference.
Great job man
thanks =)
Definitely better than before but still a little bit bouncy :)
Yea cant stop all the bounce but you can tame it a bit! =)
Nice work~
Good job~
"12" Like~
Thanks bro!
Great video steve
Thanks man!
Excellent work , nice video !!
thank you =)
Good work bud. Unless it's a Tamiya fun car, it shouldn't be bouncy lol.
Thanks =) yea tamiya bounce = fun!
Nice video well done😉😉
Thanks for watching.
I've got 3 of these q39's at the moment. Looking to upgrade the suspension on all for cheap ;) I have a tube of permatex dielectric grease laying around.. think that would be thick enough not to leak out? I was just gonna be lazy.. open the top of the shock, squirt a glob of grease in, and close it back up.
Hi the shocks don't hold grease but a little in them should make it a bit better... the more sticky the better.
@@ShenRC thanks for the reply man! And I think I see what you're saying. I've been inside the shocks once before and it's just a Philips head screw where the Piston would be. My brother in law has some extremely thick (paste-like) grease he's saving for me to use in differentials. I'll give that a shot
great mod! should work ;)
Thanks =)
Good job brother 👍 👍 👍 👍 👍 👍 👍
Thanks man!
Those WHEELS there the same as what's on the Coyote but in black. But will be interesting to see how the grease works but this is the problem with friction shocks.
That's funny they do look the same but these are fake bead lock wheels.
Great job, man, thank you for the video
just one question - I cannot find metal spare parts for my q39
will it work if I order the same parts designed for fy03 eagle-3 or wltoys 12428?
did you have such experience?
Hi the fy03 eagle is the same so it should work. Thanks for watching.
There is any difference between gear and gear material which is use in both the cars
i don't know if you know this but im goona ask
the JJRC Q39 has a 40A esc
FY-01 also have a 40A esc
so do you know if the wltoys 12428 has a 40A esc too?
a 540 (wltoys motor) uses 34a at max throttle
😊👍Hi thanks for stopping by, I am not sure on the amp rating of the esc on the wltoys 12428 to me they look the same but they may use higher amp rated parts in the esc in the wltoys to run the 540 motor.
ty
my a979 esc overheats Fasts
Don't know how old is the motor maybe it's time for a new one?
Is there some way you can make the battery last more or no?
Hi yes you can get a higher capacity like a 2000 to 23000 2S lipo for like a traxxas 1/16 scale size RC and that should fit in.
Shen RC so you can make the rc car battery last longer by useing a bigger battery from traxxas ? and will it cause damage to the car?
@@leaflux_gaming5668 You need a lipo charger and a lipo buzzer alarm so you can run 2s lipo if you dont have any of those and never used lipo batteries then I would just run it with the stock battery.
ok thank you
How much grease did you put inside? I mean, how many tamiya AW grease should I buy? Thanks
Hi one jar will be plenty enough but If I was you I would just buy the hop up shocks they are very cheap for this thing now a days.
Shen RC which one is compatible with Q39 ? A good one.
Hi I think these will work
ruclips.net/video/LktOjksVAC0/видео.html
Which one shold i buy
Add a video of upgrade with brushless motor for jjrc q39
Not worth upgrading to brushless...fy07 is brushless i believe.
What is difference between fy03 and jjrc q39
Hi they are almost the same but I believe the fy03 has ball bearings.