HPI Sprint 2 Mods
#496
Tech Addict
how many of you guys used exotek chassis? what is the weight of it with the bulk heads & gearing.
how are the ball difs ? is their any dif upgrades or the stock ones work good?
how are the ball difs ? is their any dif upgrades or the stock ones work good?
#497
Marv, we are going to use 2 sprint flux cars today to narrow down what happened to mine, thanks man!
#498
Tech Regular
iTrader: (4)
I have not added ball diffs. I'm still using the stock gear diffs. The only mods I did to the diffs were to add ball bearings in place of the shaft bushings and shim the shafts to reduce slop. I have a one way diff that I might try but it probably isn't recommended for racing. You give up front brakes with it.
#501
I'm running OEM diffs (out drives shimmed to remove slop)
I have a spring & shims in my front diff to tighten it some
No spring in the rear
I've tried a one way in the front =
You give up having brakes (most of them anyway)
Not really good (IMAO) on a small, tight, technical track
Not good for a noob (IMAO)
#502
Tech Addict
ya out track is small and low grip carpet and very technical , race no drift. never new the dif had bushings, never taken it apart yet. what size of bearing for the dif?
thanks
thanks
#503
2 - 5x8x2mm Bearings - IF you chose to upgrade the B070 bushings to bearings
LINK = http://www.rctech.net/forum/11400616-post149.html
NOTE:
The rear distances from inside the axle cup to inside the diff cup are shorter in the rear of the car than the front of the car=
After the shim mod =
Using CVD's in the rear could be an issue -
TESTING A BEARING UPGRADE IN PROGRESS
Last edited by Marv; 04-30-2013 at 03:01 PM. Reason: "Any girl can be glamorous. All you have to do is stand still and look stupid." Hedy Lamarr
#504
Tried another ESC from Marks car and everything worked so i have a new one coming.
I had moved the ESC on top of the battery claw holder and the last few times we ran real hard and my batteries got super hot and my ESC was right there on top of it so i think the heat took out the ESC so time to find a better spot for it.
I am going to re-route the wiring, I noticed the way they did it when i first got it and didnt like it, That was one of the first things i checked due to being so close to the belt.
Thanks for the help guys!
I had moved the ESC on top of the battery claw holder and the last few times we ran real hard and my batteries got super hot and my ESC was right there on top of it so i think the heat took out the ESC so time to find a better spot for it.
I am going to re-route the wiring, I noticed the way they did it when i first got it and didnt like it, That was one of the first things i checked due to being so close to the belt.
Thanks for the help guys!
#505
TENNIS COURT & B-BALL COURT
Lucky me has a b-ball court & a tennis court not far from my front door -
Surfaces are not the best
But not the worst either
Tennis court is definitely the better of the two
I just have to get jump on the future tax payers -
Or wait until they're all in school -
Surfaces are not the best
But not the worst either
Tennis court is definitely the better of the two
I just have to get jump on the future tax payers -
Or wait until they're all in school -
Last edited by Marv; 04-29-2013 at 01:12 AM. Reason: Shane Falco: "Danny! Remember what I said about red shirts in practice?"
#506
The tennis court looks good, put out a few cones and go through a few batteries
#507
May I say a big thank you to you Marv, this thread has been invaluable to me on many occasions.
#508
Tech Master
iTrader: (2)
I noticed on my 4tec that the rod ends are the same as i tried them and if ne1 want they can use the rod ends that come on the 4tec to compleatly remove all slop in the fron as my 4tec has almost 0 slop will try n let every1 know need to get the parts n screws but the ones i have used compeatly removed slop in the are i need
#509
New ESC did the trick, old one did all the right things with the led lights (green red yellow) but was not running the motor, Back on the road again, Hope to run in the parking lot after work tonight.
#510
Thanks WaftyCrank -
Scionara05 = Do you have some part numbers?
Max = GLAD you're up & running again!
See if HPI will warranty that ESC for you.
Scionara05 = Do you have some part numbers?
Max = GLAD you're up & running again!
See if HPI will warranty that ESC for you.
Last edited by Marv; 05-01-2013 at 02:42 PM. Reason: “You only live once, but if you do it right, once is enough.” ― Mae West