Team Associated RC8Be Thread
#6603
#6604
#6605
Joined: Jan 2011
Posts: 2,030
From: Albany, NY
Got a bit of a mechanical question for anyone:
I'm going to be tearing my car down tomorrow for a nice cleaning & diff / suspension maintenance. I have some parts I ordered to replace (bent a dog bone, some screws, etc...) nothing really major.
Although, as soon as I was done running I noticed only the front wheels were engaging and the back... nope. They were just free spinning.
I suspect a center diff. issue, but not sure yet. Any ideas what to keep an eye out for?
Thanks!
I'm going to be tearing my car down tomorrow for a nice cleaning & diff / suspension maintenance. I have some parts I ordered to replace (bent a dog bone, some screws, etc...) nothing really major.
Although, as soon as I was done running I noticed only the front wheels were engaging and the back... nope. They were just free spinning.
I suspect a center diff. issue, but not sure yet. Any ideas what to keep an eye out for?
Thanks!
#6606
Tech Adept
iTrader: (4)
Joined: Dec 2010
Posts: 125
From: SOCAL
Got a bit of a mechanical question for anyone:
I'm going to be tearing my car down tomorrow for a nice cleaning & diff / suspension maintenance. I have some parts I ordered to replace (bent a dog bone, some screws, etc...) nothing really major.
Although, as soon as I was done running I noticed only the front wheels were engaging and the back... nope. They were just free spinning.
I suspect a center diff. issue, but not sure yet. Any ideas what to keep an eye out for?
Thanks!
I'm going to be tearing my car down tomorrow for a nice cleaning & diff / suspension maintenance. I have some parts I ordered to replace (bent a dog bone, some screws, etc...) nothing really major.
Although, as soon as I was done running I noticed only the front wheels were engaging and the back... nope. They were just free spinning.
I suspect a center diff. issue, but not sure yet. Any ideas what to keep an eye out for?
Thanks!
#6607
Joined: Jan 2011
Posts: 2,030
From: Albany, NY
Good point. I'll check it out.
#6608
Hello all,
Now that the AE new towers and modified arms are out now, we have been testing our prototype conversion kits and may still release them.
Whats different about ours?
The conversion will have the same suspension geometry as the new AE kits but with some added tuning features. Firstly, it uses the stock arms with no modification. Since the old arms are so readily available, it simply makes sense. The other thing about using the stock arms, is the ability to replace them in a breakage at the track without modifying them.
The new towers also have extended shock mounting holes so you can tune for hard clay surfaces to high bit surfaces.
Pics to be posted soon once we get the pre-production units made up.
Team GRID
Now that the AE new towers and modified arms are out now, we have been testing our prototype conversion kits and may still release them.
Whats different about ours?
The conversion will have the same suspension geometry as the new AE kits but with some added tuning features. Firstly, it uses the stock arms with no modification. Since the old arms are so readily available, it simply makes sense. The other thing about using the stock arms, is the ability to replace them in a breakage at the track without modifying them.
The new towers also have extended shock mounting holes so you can tune for hard clay surfaces to high bit surfaces.
Pics to be posted soon once we get the pre-production units made up.
Team GRID
#6609
I think I know what you're talking about. The set screws on the drive axle going from the center diff to the rear diff, yes? I'll take a look at that. The front one worked lose first time I fired her up. I put some red loctite on that sucker and it was never a problem again. I'm not sure if I did the rear.
Good point. I'll check it out.
Good point. I'll check it out.
#6610
So the 2wd SC class is dwindling locally and I decided to step up and run a class that had more entrants. Still running 4wd SC, but 1/8 buggy looked fun and really competitive.
I picked up a used RC8 roller for cheap a couple of weeks ago. Received it, tore it all down, went through all diffs and bearings, cleaned it up, upgraded it to "B" specs and installed my MMP/2200kv Castle system from out of my SC8e into it.
Ran today for the first time. Need to make some changes to the setup regarding shock oil and swaybars, but I placed 2nd in the 15min A-main against some sponsored locals. I even made a fake pit stop to make it fair to the nitro guys. I'm pretty pumped up.
I used 15/46 gearing and a GensAce 5000mah 4s. I was worried I wouldn't make it the full 15mins at full race pace using this pack, but it surprisingly did. I just took it off the charger, and the pack took 5043mah back into it.
Resting voltage before the charge was 14.1. I'm guessing I was pretty close to LVC by the end of the main, which I had lowered from 3.4/cell to 3.2 volts right before the main in hopes to make it. I think I can go to a 14t pinion to give some more pack headroom, since I had power to spare and was the only guy on the track that could clear a big set of triples in a field of nitros. I was also pulling away from them pretty hard in the straights. Also, when I temped the electronics after the run, the MMP was at 126 degrees and the motor was just under 160.
Is this the type of results you other guys using similar setups are getting as far as runtime during racing?
Here is a pic of the rig right after the main
:
I picked up a used RC8 roller for cheap a couple of weeks ago. Received it, tore it all down, went through all diffs and bearings, cleaned it up, upgraded it to "B" specs and installed my MMP/2200kv Castle system from out of my SC8e into it.
Ran today for the first time. Need to make some changes to the setup regarding shock oil and swaybars, but I placed 2nd in the 15min A-main against some sponsored locals. I even made a fake pit stop to make it fair to the nitro guys. I'm pretty pumped up.
I used 15/46 gearing and a GensAce 5000mah 4s. I was worried I wouldn't make it the full 15mins at full race pace using this pack, but it surprisingly did. I just took it off the charger, and the pack took 5043mah back into it.
Resting voltage before the charge was 14.1. I'm guessing I was pretty close to LVC by the end of the main, which I had lowered from 3.4/cell to 3.2 volts right before the main in hopes to make it. I think I can go to a 14t pinion to give some more pack headroom, since I had power to spare and was the only guy on the track that could clear a big set of triples in a field of nitros. I was also pulling away from them pretty hard in the straights. Also, when I temped the electronics after the run, the MMP was at 126 degrees and the motor was just under 160.Is this the type of results you other guys using similar setups are getting as far as runtime during racing?
Here is a pic of the rig right after the main
:
#6612
20mins with a 5000mah pack? I can't imagine wringing out another 5mins? How could I go about getting more runtime without sacrificing top end speed? I feel I already have pretty smooth throttle inputs while racing.
#6613
i get about 20 on a 4500 and 20+ on a 5000.
thats geared 19/46 with tekin 1900kv.
shredded the center diff this weekend. mugen gasket fail.
i guess i'll try just sanding a little and use ae gaskets.
thats geared 19/46 with tekin 1900kv.
shredded the center diff this weekend. mugen gasket fail.
i guess i'll try just sanding a little and use ae gaskets.
#6615
I get about a min. less per tooth as I go up in pinion.



