4LikesTamiya TRF417
10-24-2011, 08:03 AM
#2116
Tech Rookie
Have you tried looking at your wheelbase/ackerman settings? It looks like it starts to happen as the ackerman effect comes in.
I can't quite see in the video what spacers you are running so not sure if that might be anything to do with it?
Other than that I'm stumped.
Ade
I can't quite see in the video what spacers you are running so not sure if that might be anything to do with it?
Other than that I'm stumped.
Ade
10-24-2011, 09:59 AM
#2117
Tech Addict
iTrader: (5)
Thanks for your reply, Elliott.
I have uploaded two new videos, but I didn't manage to do one with the car on the track. The problem started between two heats, and last year's indoor season and this year's outdoor season I had no such problem. My 4th battery of this indoor season, it started with this.
I have uploaded two new videos, but I didn't manage to do one with the car on the track. The problem started between two heats, and last year's indoor season and this year's outdoor season I had no such problem. My 4th battery of this indoor season, it started with this.
does it also happen with your wheels off?
10-24-2011, 10:55 AM
#2118
Tech Addict
Some chatter will be there at full lock for sure... but given from the list of what you've changed so far (i.e. everything!) to solve it, can only reason that that is the problem.
When you say you turned the steering down, was it on the bench? or on the track?
The rims themself are round yes? Have you tried a newer set of tyres since it occured, can't remember if you mentioned it or not. I mean, if you are running on carpet, tyres tend to last a while... so could simply be them out of balance. Otherwise running out of ideas!
HiH
Ed
When you say you turned the steering down, was it on the bench? or on the track?
The rims themself are round yes? Have you tried a newer set of tyres since it occured, can't remember if you mentioned it or not. I mean, if you are running on carpet, tyres tend to last a while... so could simply be them out of balance. Otherwise running out of ideas!
HiH
Ed
The rims are not perfectly round, no, but I have tried with a completely new set of tires and a set of Sorex tires, and the problem is there with all of them.
It's hard to tell. I think I can hear it without the wheels, and the wheels then increases the "problem". But honestly I am not sure.
10-24-2011, 11:30 AM
#2119
Tech Initiate
Hope you are ok?
I think the arrowmax driveshafts are 43mm... it is a little shorter but I dont think this makes much difference
Im not sure where you can get them in this country im afraid
Elliott
10-24-2011, 11:53 AM
#2120
Tech Initiate
double post
10-24-2011, 07:45 PM
#2122
The steering was turned down on the bench. I can try to turn down the steering and try the car on the track the next time I am at the track.
The rims are not perfectly round, no, but I have tried with a completely new set of tires and a set of Sorex tires, and the problem is there with all of them.
I am running kit setup on that matter, but I can try to play around with that the next time at the track.
It's hard to tell. I think I can hear it without the wheels, and the wheels then increases the "problem". But honestly I am not sure.
The rims are not perfectly round, no, but I have tried with a completely new set of tires and a set of Sorex tires, and the problem is there with all of them.
I am running kit setup on that matter, but I can try to play around with that the next time at the track.
It's hard to tell. I think I can hear it without the wheels, and the wheels then increases the "problem". But honestly I am not sure.
I know I have some chatter on the bench when I rev my car up at full lock, but isn't noticeable on the track. Turning it down on the bench is always a little bit of an issue, as the car has no load, so is easier to create any noise.
Haven't happened to change anything else in your steering setup recently, servo, horn etc, that may have increased the lock your using?
Bolting the wheels on will for sure make the issue more apparent, due to having to turn a much larger weight, and especially if they are out of balance!
Regards
Ed
10-24-2011, 11:44 PM
#2123
Tech Addict
Ok, try turning the steering down a little on the track, see if it helps.
I know I have some chatter on the bench when I rev my car up at full lock, but isn't noticeable on the track. Turning it down on the bench is always a little bit of an issue, as the car has no load, so is easier to create any noise.
Haven't happened to change anything else in your steering setup recently, servo, horn etc, that may have increased the lock your using?
Bolting the wheels on will for sure make the issue more apparent, due to having to turn a much larger weight, and especially if they are out of balance!
Regards
Ed
I know I have some chatter on the bench when I rev my car up at full lock, but isn't noticeable on the track. Turning it down on the bench is always a little bit of an issue, as the car has no load, so is easier to create any noise.
Haven't happened to change anything else in your steering setup recently, servo, horn etc, that may have increased the lock your using?
Bolting the wheels on will for sure make the issue more apparent, due to having to turn a much larger weight, and especially if they are out of balance!
Regards
Ed
10-25-2011, 02:24 AM
#2124
Tech Apprentice
Well, I switched back to carpet setup (from my asphalt setup) for the indoor season, and renovated the car (new bearings and the like) and four batteries later, it started. It shouldn't be the setup, as I have used that before, but it might have happened during the renovation of the car.
10-25-2011, 03:24 AM
#2125
Tech Fanatic
iTrader: (22)
Well, I switched back to carpet setup (from my asphalt setup) for the indoor season, and renovated the car (new bearings and the like) and four batteries later, it started. It shouldn't be the setup, as I have used that before, but it might have happened during the renovation of the car.
Have you checked the spool cups?
A groove in the spool cups can make the chatter worse as the uni will run in the groove of the cups...
10-25-2011, 05:26 AM
#2126
Tech Addict
No hard hits - only barely touched the curb on the inside of the corner a couple of times, but not anything worse than that. The problem wasn't there at all before the 4th run. I have changed the spool cups and even tried a gear-diff.
10-26-2011, 06:38 AM
#2128
Just a thought here, if there is a grinding sound, as you clearly have, something has to be grinding. The should be some sign of wear... Anno wearing off, plastic parts shaving, small bits of metal, somewhere.
I am late to this discussion, but have you swapped out the front CVD's maybe with some from another racer at your track. So you can take your parts out of the equation. Try shorter CVD's just to see if that helps..Maybe pop the shocks off, and run the suspension through it's full stroke,without turning the wheels.. does that cause the chatter too ? Maybe pop the steering linkage off and try steering it manually. Just isolate it down to the smallest denominators.
I am late to this discussion, but have you swapped out the front CVD's maybe with some from another racer at your track. So you can take your parts out of the equation. Try shorter CVD's just to see if that helps..Maybe pop the shocks off, and run the suspension through it's full stroke,without turning the wheels.. does that cause the chatter too ? Maybe pop the steering linkage off and try steering it manually. Just isolate it down to the smallest denominators.
10-26-2011, 12:02 PM
#2129
Need a car to start racing
Should I get the 417 now or wait for the 417X? I will be racing indoor asphalt and carpet. Need a good all around car but not sure if the new chassis will help or impair me.
What should I do?
What should I do?
10-26-2011, 12:14 PM
#2130
A lot of time racing on high grip carpet vs asphalt I'd stick w/ the 417. The deep cut outs in the chassis are going to keep me from upgrading mine to an X version since I race on the rug. It just seems like it would flex too much.
If your going to spend more time on asphalt go with the 417X.