Tips and Tricks
If you choose to discharge your batteries prior to
recharge, here are some suggestions:
- Mr Holm's
In the Pits article on
batteries and battery charging.
- There is a lot of debate on Ni-Cd memory effects. Most cases can be
attributed to over charging. If you have a delta peak charger, this
should not be a problem. Here's a good article
Care and Feeding of NiCd
- NiMH and LiPo batteries do not suffer from memory effect.
- There are many ways to discharge a battery pack.
You can either buy a discharger or make your own (Here's an
- From all the research I've done, the recommendation is
to only discharge a 7.2v battery pack until it reaches between 5.4v and 6.0v.
Going beyond this actually damages the cells and you run the risk of "cell
- Allow a battery pack to cool off before recharging.
Excessive heat can damage the cells
- Develop a system to keep track of which batteries have
been used on race day. With multiple batteries, when they all look the
same, it's easy to loose track of which ones have already been used.
- Use a race set up sheet to track your vehicle's changes and how those
changes effected it's performance. There's not much to tune on a stock
TT-01 so we haven't been able to find one yet. Here's the setup sheets
for Sprint 2 and
- Between races store the body clip for your transponder in the transponder
hole. That way it's ready for the next race.
Professional Driver Advice
Tips from Paul Lemieux's club
www.rcracing.tv - You can watch videos
of championship RC racing from all over the world and driver interviews
www.hpiracing.com/faq - This
section of the HPI website has all kinds of good ideas on setups, maintenance,
www.tamiyausa.com/articles/index.php?id=7 - Those are articles from the
Tamiya website about building, racing, tires, etc.
Car assembly, repair
- You can get better traction from your stock tires by
putting either foam spacers (which are available from R/C car suppliers/hobby
stores) or use foam weather stripping. For the stock TT-01 tires, use
1/2" wide by 3/8" thick weather stripping. Figure out how long of a
piece to cut by wrapping it around the wheel hub and add a little more.
Attach the weather stripping to the inside of the tire. Then place the
tire on the hub. This will make the tire firmer and increase traction.
- If you are using rubber racing slicks, you can improve
traction by either using a commercially available Tire Traction Compounds or
several different household cleaning products like Simple Green.
Remember always wipe off the excess traction compound
before placing your car on the track.
- YouTube has a lot of helpful videos here are just a sampling.
Build and Rebuild Your Shocks
maintenance, Traxxas Slash
Set Your Gear Mesh
Glue Your Tires the Right Way
Here's how to build a custom fitting bumper for your car.
Chris Rupp has donated custom painted bodies to the club. Here's his
how to paint a body.
- During assembly, use a thread-lock product like Loctite,
on the grub screw for the pinion gear. These have a habit of coming lose
- The most common parts that break on this car are
related to the suspension and steering. Purchase spare A, B & P parts
- Team Vanderway has compiled a list of
hop ups and provided feedback on how well they work.
- The Sprint 2 has a lot of metal screws that screw into metal. Over
time many of these loosen up and might fall out if you're not inspecting the
car regularly. The most common problem I've seen is the screws that hold
the rear bulkhead. It's the area by the moto
r. In order to prevent
these screws (pointed to in picture below) from falling out, use a small
amount of Blue Locktite (thread locker available at any hardware or automotive
store) on the threads.
- With any belt driven system, debris can get stuck between the teeth of the
belt gears. It's important to occasionally clean this junk out to avoid
vibration or belt failure. You can use either a small screwdriver or
If you find you are frequently popping off the camber link
ball cap in the front of the car, it might be because the castor block is
hitting it when the suspension compresses. In order to prevent this from
happening, you can use a small section of fuel line that you can get at your
local hobby store to limit the travel of the shock. You will need a
piece that's just long enough to prevent the castor block from hitting the
ball cap, just a few millimeters. Install this piece on the exposed end
of the shock shaft.