Tech Help, Pre-B4 Buggy Setup

There would be nothing to adapt. The front wheels will use the same size bearings, and the rears from the DS will fit the 3/16 axle, and if you have CVD's it should fit without a problem.

2 On the MIP CVDs on my B3 Team kit, the small pins that go inside the CVDs keep wanting to fly out of the holes. I've tried putting some Locktite on there but they still come out.

Remove the pin and with a file a small flat area were the grub screw makes contact with the pin. (NOTE: DO NOT FILE TOO MUCH OR YOU WILL WEAKEN THE PIN).

3 I heard that it is a good idea to add weight to the front of the B3. However, I did not see a description of how to actually add it.

Use the #1596 Factory Team lead weights. They are just the right size and include sticky tape on one side so they'll stay put. Put it inside your bulkhead.

4 My drive shafts keep coming out after a jump.

1. It's likely that you have too few spacers on the axle before it goes into the hub carrier. Check that out with the manual.
2. Make sure you have the correct arm mounts on the right and left side.
3. Make sure that you don't have too much negative camber (tire leaning out) or positive camber. -2 degrees is optimum.
4. Make sure you have spacers #9276 (discontinued item) in the correct place.
5. You could add shock travel limiters #6466, one to each rear shock.
6. Some part of the rear end has not been assembled correctly; that is allowing them to come out.
7. Rear A-Arms angle leans so much to allowing the suspension to over extend the suspension.

5 I would like to know which setup you advise for me for grass track with some artificial jump?

Try this setting:
Front:
35wt oil, #1 pistons
outside hole on shock tower
inside hole on arm
camber link hole on tower: outside

Rear:
30 wt oil, #1 pistons
middle hole on shock tower
outside hole on arm
inside hole in bulkhead: camber
outside hole in hub carrier
rear hubs spaced all the way back
batteries in middle position.

6 I would really appreciate advice on how to at least keep up with these guys on the track. They beat me by at least 8/10 of a second and I can never pass them. Track conditions are dry & hard, using Holeshot tires, good grip, good steering--just no speed.

Gearing can be different for each motor You really cannot use the exact same gearing for each motor and each type of motor. You may need to work with the gearing on one particular motor. If the motor is too hot it is over geared. We really think you are over geared so try going down 2 teeth and see how it works. Also many drivers pay way too much attention to their motors and it really is mostly in the chassis. Work on your suspension setups. Pay most ot your attention to the shocks. Make sure the rebound and dampening is the same for all 4 shocks, they all have to work the same. Also it is very important to make sure the diff is working VERY smooth, if not the car will not be as fast as possible. So if you work on all of these things your buggy will go faster.

We cannot tell you how many times we hear drivers say that their motor is not fast enough and then we get to see their car and it is obvious why it is slow. The car looks bad and is set up bad so if you are not doing it now work on the chassis way more than anything else.

We also hear these types of comments when something new comes out, be it a car, a speed control or even a new battery. Racers will justify their not being as fast as another guy because they don't have the newest whatever. Don't believe that; work hard on the entire car and see if you get better results.

7 What would you suggest for a pinion to use with a 19 turn motor for the B3?

22.

8 I have inserted MIP gold shock shafts into the rear of my car. Now when the the shocks are fully extended I turn the wheel and the driveshaft fall out of the overdrives.

Add some limiters inside of the shocks and check and make sure you mounted the shocks in the same position as you had before.

9 I race on an indoor dirt track that is hard clay. The surface is hard packed and wet. The temperature inside is approx. 50 degrees. As the racing progresses the track dries a little and a light dusting starts to appear.

Traction is a little hard to find. I am running Ones and 35 wt all around silver springs M3 compound battery back. We would appreciate any help or setup ideas.
#2 piston in front with 30 wt.
#3 in rear with 30 wt.
1.5 degree of toe in/front
silver spring front
silver rear
-1.5 degree camber in the rear and –2 degrees in the front

11 I have a major problem. I cannot keep the front end of my B3 on the ground. I have already have the lead weight in front, a 1/2 ounce in the bulkhead.

Don't worry this problem is easy to fix. You can always get rid of traction but it's harder to find it.
First try using less rear toe in. Like the 2 degree suspension mounts.
Next try moving your battery forward. Another thing to try would be to move your hubs back. All of these things will put more weight over the front end of the car so always check to make sure your ride height stays the same. Try setting your slipper a little on the loose side. Just loose enough so that your front end stays on the ground. All of these things suggested can be related with the T3. Good luck in your racing.

12 Is there also a setup for the B3 for a bumpy track?

Try a T3 standard length chassis. This will make you car longer and more forgiving on the bumps at higher speeds. Try a lighter shock oil with softer springs front and rear. Finally try moving all of the car's weight to the rear of the car.

13 I have a T3 and a B3 both I like very much. How can I get more on power steering?

An easy way to get more on power steering is to install some lead into the front bulkhead. Make sure when you do this to re adjust the front ride height. This works best on both the truck and the buggy.

14 The wheel/tires are pretty much not a balanced system. The tires are slightly lop-sided.

For major races most of the Team guys will balance the wheels and tires by using lead tape on the inside of the wheels.

15 What is the right way to set up the servo saver?

You can make the servo saver work a little easier by applying a small amount of diff grease on the "V" groove of the servo saver.

16 What if I put the white spacers on the kingpin on the top or bottom?

Moving the kingpin up will increase the amount of camber change in the front tires, giving the car a more forgiving feel. Moving the kingpin down will give the car a more responsive feel and make the car slightly more difficult to drive.

17 How do you get lots of steering on the B3?

To get more steering on power you can do several things:
+ Try a stiffer rear spring or softer front spring.
+ Move your hub carrier back in the rear arm.
+ Moving your batteries forward.
+ Using less rear toe in..... going to 2 deg suspension mounts.
+ Adding weight to the front bulkhead.

To get more off power steering:
+ Raise the rear ride height and slightly lower the front ride height.
+ Use 25 deg caster blocks.
+ If your speed control has drag brake this works well.

18 How do you know if the dif is too tight?

The way I check my diff once it is in the car is by the actual motion of the diff when you spin it with the tires on. When you spin the diff the tires should spin about one and a half revolution. If the tires spin more than that tighten the diff. If they spin less than that the diff is too tight.

19 When you spin the wheels and they turn in opposite directions, what causes the wheels to both spin forward when the throttle is applied?

When you spin the tires with your hands there is enough force from the magnets of the motor to hold the diff gear in place, causing the diff to diff. When throttle is applied you are now turning the diff gear allowing both wheels to spin freely.

20 I would like to know what parts I need to convert my B3 to a T3. I want graphite and carbon part numbers.

Here are all the parts you will need to convert your B3 to a T3:
#7204 Carbon Fiber Front arms
#7219 Carbon Fiber Front shock tower
#7253 Front Tie rods
#7223 Front shock mounts
#7321 Front Body post
#7304 Carbon fiber chassis
#7331 Carbon battery strap for truck chassis
#7349 Carbon Fiber rear shock tower
#7339 Carbon Fiber Rear Arms
#7341 Rear shock mounts
#7408 Rear shock kit
#6432 Front shock kit
#7428 Front silver springs
#6480 Rear green springs

21 I am currently racing a B2 both on and off road, but seem to be suffering constantly from grip-roll on grass tracks. I am using the basic set-up, but no matter which tyres I use, the car always rolls into corners. I have increased the wheel camber to -5 degrees which has lessened the problem but not completely cured it.

Try to stiffen the car as much as possible even going to the extent of trying sway bars on the front and even the rear. You will notice a big difference just by doing that.

22 I have a problem with my b3 when i run the 25 degree front carriers. When I have the steering at full lock and compress the suspension the front camber tie rod end hits the steering turnbuckle. I am using RPM tie rod ends-- would this be the problem?

The RPM tie rods are the problem. Simply replace them using the stock ones that come in the kit and you will have no problems.

23 Please give me the skinny on taking your tires off the rims after they have been glued on to them!

The only method I still use is to boil the tires and wheels in hot water. With the early Super Glues the heat from the water made the glue crystalize so you could remove the tire. Normally whatever method you use, the tire is not reusable, only the rim.

24 I race my B3 on blacktop. Should I change it's gearing?

You can gear your car one tooth higher for racing on blacktop.

25 To me it looks like the MIP axles could be about a .050" longer. The reason I say this is, twice now the left side axle has popped out of the diff outdrive hub.

Check the shock mounting positions, the shock body lengths, and the shock shaft lengths. These can also affect the drop on the rear arms.

26 Besides weight, what will the graphite chassis for the B3 do to handling? Is it conductive (will it short out batteries)? If so, how can I protect the batts?

The graphite chassis is more rigid, so it will make the car more responsive. Yes, the graphite chassis is conductive. Use electrical tape on the chassis where the battery sits.

27 How often should I clean my bearings, and can I use any lubricator to relube them, or do I have to use a special one?

If you are running your car in dusty or sandy conditions, clean your bearings every 15 to 20 battery packs. Use a good high quality bearing oil after spraying out all the dirt.

28 I race a B3 on a loose track that is pretty smooth. I have ran it by the stock setup and it is real loose in the back. What can I do?

Try using 25wt in the rear and green springs. Make sure when you do these changes to re-adjust your rear ride height.

29 The MIP CVDs that came with the kit are about an 1/8" too short. They still work but I cannot lower the suspension and I think the outdrive hubs or dogbones are going to break or come out. I tried moving washers around but then the tire rim rubs.

If the rear shocks are mounted in the inside hole on the arm the CVD’s will not fit, because the rear suspension has too much down travel. The shock needs to be mounted in the outside hole. Check to make sure the spacing is correct on your rear axles.

30 Would it make a difference in handling if I were to use 1.5 degree suspension mounts and 3 degree hub carriers or use 3 degree suspension mounts and 1.5 degree hub carriers?

The traction will be the same, but the handling will be different. Suspension mounts with less toe in will handle better in rough conditions than ones with more toe in. If you are running on a rough track I recommend using 1.5 suspension mounts and 3 degree hub carriers.

31 What settings do I need to modify to keep the B2 buggy from nosing over on jumps.

Try a stiffer front spring with a smaller hole piston.

32 I would like a grass off road setup for the B3.

33 RC10B3. The back of the car is always sliding out when I go through the corners, causing me to spin around.

Make sure there is nothing binding in the rear suspension. Another thing that can cause this is the wrong type of tires. If you stick to the stock setting you should be okay. Having the right tires is very important.

34 What does moving the upper shock mounting position do to the B3 and 10T?

Moving the top of your shock in will increase your initial turn in steering, but won't allow the car to handle the bumps as well. Moving the top of the shock out on the tower will allow your car to go through the whole corner much smoother and it will also handle the bumps much better.

35 I notice that when I install 25 degree caster blocks on my B3 they give a small portion of bump steer. Can I fix it?

To get rid of the bump steer, put a washer under the steering ball end on the bell crank.

36 I have trouble bottoming out pretty bad.

A smaller hole piston will help this problem.

37 RC10B3. I have just one problem with it, that is the shocks. I can't seem to get the air out properly, which makes them sound and feel terrible.

Keep in mind that our shocks are emulsion shocks. This means there will always be some air in the shock. In an emulsion shock the air and oil mix in order for the shock to work the way it was designed. As you are finding out, the trick is to get the correct amount of air inside the shock. Here are our latest assembly instructions:
1) Pull the shock shaft all the way down (piston at bottom of shock).
2) Fill the shock to the top of the shock body with oil.
3) Move the piston up and down to remove any trapped air. Refill the shock with oil if necessary.
4) Thread on the shock cap.
5) Push the shaft up into the shock. In most cases the shaft will not go all the way up at this point.
6) Loosen the shock cap. push the shaft up and bleed out a small amount of oil.
7) Push the shaft up into the shock until it goes all the way in and comes out between 1/4" and 3/8" on its own.
8) Keep repeating steps 6 and 7 until you get the correct amount of shaft rebound. Also check to make sure there are no burrs on the piston. This can make the shocks feel bad.

38 I was wondering about how, when, and where to use a sway bar on my B3.

Sway bars are used to stabilize a car from excessive chassis roll. A car not using a sway bar on a high traction surface will tend to have a lot of chassis roll, which results in being less responsive. A car using sway bars on a high traction surface will tend to have less chassis roll, making the car more responsive to cornering, at the same time making the car more stable.

Sway bars are generally used on smooth, high traction conditions. If the track is very bumpy, then sway bars are not your best bet. Sway bars on a bumpy track will make your car very difficult to drive.

Knowing when to use a front or rear sway bar is fairly easy. If you are driving on a high traction track and your car wants to oversteer, this is when you would use the front sway bar only. This will stiffen the front during cornering, giving the car consistent steering throughout the corner. If your car is understeering, this is when you would want to try a rear sway bar. The rear sway will keep the rear of the car from rolling, in return, transferring more weight to the front of the car, gaining steering.

The more bumpy a track gets, the more the bars become a disadvantage. Sway bars on bumpy tracks don’t fully allow your suspension to work independently, making your truck or car difficult to drive.

39 Do you clean the PTFE sealed wheel bearings in the B3 with motor cleaner just as you clean the old style wheel bearings?

A motor cleaner works fine. But remember to always re-oil them with a good bearing oil after spraying them.

40 RC10 Graphite. Here in the upstate NY area we race on very small ovals. What degree of steering blocks offer the most steering?

For dirt oval I would recommend trying the 30° caster blocks.

41 Which setup do you advise me for my B2 for very slippery track condition (indoor)?

For slippery track conditions, it is important that the majority of your car's weight be at the rear of the car. Tire choice is extremely important too. I would start with the setup that we have posted, but move the batteries all the way back, and try Green springs on the rear. Make sure to correct your rear ride height when changing to a softer spring.

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