1089LikesTeam Associated B6.1 & B6.1D thread
03-24-2020, 06:21 PM - Wikipost
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Welcome to the B6.1 and B6.1D Wiki page.   Features: Easy-access gear differential Differential height adjustment with 0, 1, 2, and 3mm inserts included New slipper assembly for better weight balance and shock clearance 3-gear Laydown Stealth(r) transmission for lower and forward CG Heavy-duty V2 routed graphite front shock tower with tower guard Heavy-duty V2 routed graphite rear tower, standard height Heavy-duty V2 rear axle with 67mm bones V2 springs for a more reactive and nimble feel Innovative rear arm with molded inserts for ultra-fine lower shock mount adjustment Molded spur gear guard to help protect body from damage Front and rear anti-roll bars limit chassis roll for increased corner speed Battery strap allows the use of optional turnbuckle-based braces Machined pistons included for better fit and smoother operation Aluminum rear clamping hex and front axle with laser etching Rear hubs feature large bearings and the easy-insert system to adjust camber link position and rear axle height One-piece shock bushing to make assembly easier Aluminum C and D arm mounts included for large range of anti-squat and toe adjustment Lightweight aluminum top shaft Factory Team upgraded ball bearing kit included (now oiled instead of greased for less drag) JConcepts(r) B6 clear body and wing included Steel chassis weight Shortened, 7075 aluminum chassis   Features: Easy-access ball differential Differential height adjustment with 0, 1, 2, and 3mm inserts included New slipper assembly for better weight balance and shock clearance 3-gear Lay Back Stealth(r) transmission for lower and rearward CG Heavy-duty V2 routed graphite front shock tower with tower guard Heavy-duty V2 routed graphite rear tower, long Heavy-duty V2 rear axle with 67mm bones V2 springs for a more reactive and nimble feel Innovative rear arm with molded inserts for ultra-fine lower shock mount adjustment Molded spur gear guard to help protect body from damage +1 steering block arms optimize feel on dirt tracks Battery strap allows the use of optional turnbuckle-based braces Machined pistons included for better fit and smoother operation Aluminum rear clamping hex and front axle with laser etching Rear hubs feature large bearings and the easy-insert system to adjust camber link position and rear axle height One-piece shock bushing to make assembly easier Aluminum C and D arm mounts included for large range of anti-squat and toe adjustment Lightweight aluminum top shaft Factory Team upgraded ball bearing kit included (now oiled instead of greased for less drag) JConcepts(r) B6 clear body and wing included Shortened, 7075 aluminum chassis Setup Sheets and other documentation Setup sheets for both cars: Piston Drills:
Aftermarket Upgrades: Parts List: Reference Guides (courtesy of Ray Munday and Roger M.): 
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05-25-2018, 07:58 PM
#1202
Tech Apprentice
There is only one class that we race here which is a hand out 19T brushed motor (with a juststock ESC) and i don't have any idea where it falls on brushless motor
Some people say it falls between 13.5 and 17.5 but some say it falls around 10.5T brushless
Anyone have any idea about this?
05-25-2018, 08:14 PM
#1203
Tech Apprentice
05-25-2018, 08:22 PM
#1204
Tech Apprentice
To donnie_p's question, is the 4-gear standup an option any longer on the 6.1? It was on the 6, but that ship may have sailed.
I will disagree with adding weight in the rear. I think that has always been more about ft/rr balance than adding grip (we've argued that point, too..) and in this case, it's just as likely to create a pendulum effect on the loose surface. Guys are running full laydown successfully on decidedly medium grip these days, after all.
I would also steer clear of efforts to lighten the drive-line. A little flywheel effect is probably not a bad thing, and also counteracts the questionable need for adding weight in the back.
Finally, I'd explore softer suspension to slow down the car's reactions.
I will disagree with adding weight in the rear. I think that has always been more about ft/rr balance than adding grip (we've argued that point, too..) and in this case, it's just as likely to create a pendulum effect on the loose surface. Guys are running full laydown successfully on decidedly medium grip these days, after all.
I would also steer clear of efforts to lighten the drive-line. A little flywheel effect is probably not a bad thing, and also counteracts the questionable need for adding weight in the back.
Finally, I'd explore softer suspension to slow down the car's reactions.
Lightened up the front end would give the effect as adding a rear weight although it may not as much. Is that what you mean? or I got it wrong?
05-25-2018, 11:20 PM
#1206
To donnie_p's question, is the 4-gear standup an option any longer on the 6.1? It was on the 6, but that ship may have sailed.
I will disagree with adding weight in the rear. I think that has always been more about ft/rr balance than adding grip (we've argued that point, too..) and in this case, it's just as likely to create a pendulum effect on the loose surface. Guys are running full laydown successfully on decidedly medium grip these days, after all.
I would also steer clear of efforts to lighten the drive-line. A little flywheel effect is probably not a bad thing, and also counteracts the questionable need for adding weight in the back.
Finally, I'd explore softer suspension to slow down the car's reactions.
I will disagree with adding weight in the rear. I think that has always been more about ft/rr balance than adding grip (we've argued that point, too..) and in this case, it's just as likely to create a pendulum effect on the loose surface. Guys are running full laydown successfully on decidedly medium grip these days, after all.
I would also steer clear of efforts to lighten the drive-line. A little flywheel effect is probably not a bad thing, and also counteracts the questionable need for adding weight in the back.
Finally, I'd explore softer suspension to slow down the car's reactions.
05-25-2018, 11:24 PM
#1207
You need to allow the car to transfer weight to the rear end. I accomplished this with V1 springs, and lighter shock oils all the way around. I think I ended up at 27.5 front, 25 rear with white V1 fronts, and green V2 rears. Probably could have gone all the way down to black rears, but it was good enough to get through a 7 minute main reasonably well.
05-27-2018, 11:47 AM
#1208
Tech Regular
iTrader: (18)
Has there been issues with the diff catching inside the trans case? I haven’t had time to read through everything to see if it’s been brought up yet. I just built my B6.1 and everything spins freely with the diff out. But when I install the diff it starts to bind up. Its in about two spots. I think it may be the diff screw heads?, but not sure. Issue with the idler gear teeth? I’ve pulled the diff out several times and flipped it around trying to find where it’s catching. But I cannot find anything. Any help or suggestions?
05-27-2018, 02:05 PM
#1209
Has there been issues with the diff catching inside the trans case? I haven’t had time to read through everything to see if it’s been brought up yet. I just built my B6.1 and everything spins freely with the diff out. But when I install the diff it starts to bind up. Its in about two spots. I think it may be the diff screw heads?, but not sure. Issue with the idler gear teeth? I’ve pulled the diff out several times and flipped it around trying to find where it’s catching. But I cannot find anything. Any help or suggestions?
05-27-2018, 06:13 PM
#1211
Tech Adept
Okay, cool. Yeah, I've been hearing good things about the Racing Performer series orange springs...will give those a try in the rear. Thanks man!
05-27-2018, 07:06 PM
#1212
I am ready to build my B6.1D kit and i am going to run strictly on these type of tracks
1. Outdoor, medium size, loose, low grip, dry, dusty and bumpy
2. Outdoor, small size, big jumps, hardpack, dry/damp, medium grip, dusty, bumpy
No indoor high bite clay, no carpet or turf
I need suggestions on what options are a MUST in terms of performance and or handling wise?
Any suggestions given are greatly appreciated
1. Outdoor, medium size, loose, low grip, dry, dusty and bumpy
2. Outdoor, small size, big jumps, hardpack, dry/damp, medium grip, dusty, bumpy
No indoor high bite clay, no carpet or turf
I need suggestions on what options are a MUST in terms of performance and or handling wise?
Any suggestions given are greatly appreciated
Some good advice already given, I would recommend:
- standup transmission (there is a 3 gear option for the B6.1D which needs a new topshaft and motor plate (the gear cover comes in the kit). You can also drop a B6D 4 gear on, but you need the B6 rear camber plate, shock tower, layshaft etc.
- brass C block - even with standup we use to help with forward bite in bumpy / dusty tracks. Brass D as well if you run layback. For faster / flowing / higher grip take the brass C out.
- V1 springs seem to generate more grip in lower traction / bumpy conditions, but don't land as well. I run green front / black rear in low grip, white / green as grip comes up a bit or the track is faster.
- for durability, I recommend the alloy servo horn.
Standup typical setup:
http://site.petitrc.com/setup/associ...andup4gear.pdf
Layback setup:
http://site.petitrc.com/setup/associ...kShockRear.pdf
Ray
Last edited by ray_munday; 05-28-2018 at 05:19 PM.
05-28-2018, 07:05 AM
#1213
For running on indoor clay should I use the 6.1 or the 6.1d? The track we run slicks on, and cars can traction roll. I am getting both kits, and would run the ball diff regardless for the track. I am just trying to figure out what rear end package to use (I don't have the electronics at the moment to just set-up both cars). I am thinking I will just start with the "carpet" car
05-28-2018, 10:18 AM
#1214
6.1D = dirt 6.1 = carpet
05-28-2018, 10:31 AM
#1215
For running on indoor clay should I use the 6.1 or the 6.1d? The track we run slicks on, and cars can traction roll. I am getting both kits, and would run the ball diff regardless for the track. I am just trying to figure out what rear end package to use (I don't have the electronics at the moment to just set-up both cars). I am thinking I will just start with the "carpet" car