SHOCK APPEAL • Up front you will see a standard Team Associated T4
suspension setup. Long-stroke, aluminum bodied shocks are on all four
corners, and their extra "truck" travel helps the J82 take on more of
the rough stuff on the track.
TRANSMIT POWER • Team Associated's widely used Stealth transmission is
left intact at the rear of the chassis. 48-pitch gears and a standard
slipper clutch keep the power moving from the motor to the tires.
REAR END • The J82's rear end is all T4 as well, but JConcepts includes
extra offset ball cups that you can install to keep the wheels from
rubbing across the upper links during suspension travel. With no
modification to the axles themselves (both front and rear), you can
easily switch back to truck mode if you decide to run in the truck
class just by reinstalling the front truck body mounts and swapping
back to truck-dimension tires.
• Bigger Shoes: JConcepts 1/9-sized Groovy tires are up front.
• Middle Weight: Center battery position balances weight.
• Trucker Arms: Longer arms of the T4 give the J82 a wider stance.
• Brushless: Novak GTB brushless ESC fits easily on the raised sides of the molded chassis.
• Clear Downforce: Rear wing looks like a standard truck piece, but is actually included in the conversion.
Testing
Lately the sun seemed to coordinate its appearance on the days I wanted
to go track testing. Sure enough, when I went out to Pegasus Hobbies in
Montclair, CA it was one of those hotter days we don't enjoy. The track
was being prepped for the JBRL series, so it was on the loose side, but
the layout offered a host of different jumps and berms and traction
levels. Luckily the track was watered down in between runs, so I wasn't
kicking up that much loose dirt.
Acceleration and Speed • With the 6.5R bolted in, the J82 had some
traction breaking power. Acceleration was great when it hooked up, even
if the slipper clutch was a tad on the loose side. In fact, when the
track was fresh from
watering, I could pull a wheelie on the straightaway—and this is a
buggy! Top speed was good for the track size, and I'm sure that if I
had been going for a top speed run, a switch to a bigger pinion would
easily have raised the limit.
Rating: 9/9
Braking • I had to fiddle with the brake high point on my radio to
compensate for the loose dirt on the surface of the track, but once I
got it set right, I had some smooth braking. The J82 reacted to trigger
pushes like a truck would, the front end dipping slightly as the buggy
came to a stop. Most of the course didn't require much braking anyways,
but when I needed it, it was there. The Double Dee rear tires did a
decent job when slowing down, and the chassis itself stayed straight
when I had to slow down fast.
Rating: 8
Low-Speed • Low speed handling was—again—truck-like. The wider stance
of the front end gave the J82 understeer through the tighter corners.
On the other hand, when off-power the rear end of the buggy swung out
slightly. The buggy switched directions fairly quick at low speeds, but
I would have liked a little more on-power steering for the hairpins. It
wasn't as precise as a standard 1/10-scale 4WD buggy, but it was very
easy to drive.
Rating: 8
High-Speed Handling • High speed handling was great. The understeer
during low-speed driving made the J82 easy to control when I punched
the trigger. Down the uneven straightaway I did have to watch my
trigger input carefully, because if I gave her too much power, it felt
like the front tires barely touched the dirt. I was able to drift the
buggy through the big sweeper around the squared corner at speed.
Switching directions through the faster parts of the track felt stable
and controlled; the truck stance helped here, as wider tracks usually
translate to easier driving. If I let off at the right time, I could
take a corner tight, as the rear end of the J82 would slowly swing
around a tad faster than the front.
Rating: 8
Rough-Track Handling • This portion of the test showed the benefits of
running a truck suspension. With the longer arms, more shock stroke,
and larger tires, the J82 took the rough stuff like candy. The buggy
rarely lost its trajectory, and even when it did, all I had to do was
move the steering wheel slightly to correct the direction. The soft
JConcepts tires absorbed a lot of the bumps and dirt clods that were
scattered across the track surface. It also stayed level over bumps and
ruts that would usually flip a standard width 1/10-scaler.
Rating: 9
Jumping • Just like in the rough-track test, the J82 jumped nice and
smooth, thanks to the truck-spec suspension. Though it didn't feel like
a standard buggy on lift-off, the landings were soft and stable. Even
when I landed at an awkward angle, the J82 corrected itself during
suspension compression. It was fun, and easy, to jump! Just don't hit
the brake too much in mid air, or you'll nose dive it into the dirt.
Rating: 8
Wrenching
Maintenance • Maintaining the truck—er, buggy is standard issue here.
The 3-gear transmission comes out with a few screws, and the chassis
layout is nice and open. With only two driven wheels,
working on any 2WD electric is pretty simple, and since the J82 is
based on the easy to work on T4 platform, there's nothing weird to talk
about here when it comes to garage work. Just make sure you have a full
set of SAE tools, not metric.
Rating: 9
Wear and Tear • As much as I try, off-road and James Revilla are a
difficult combination. It's mainly the jumping that gets to me, and
sure enough it's also the jumping that can kill weaker platforms. The
J82 survived, however, even as I did my standard gymnastics twirl
across the hard-packed surface after the double, which is pretty much
automatic when I hit the dirt. The wing had dirt chunks on it, and the
front bumper did too, but the chassis was OK. Some of the impact was
absorbed by the J82's soft setup and soft tires, but then again, if you
haven't seen a "Revilla twirl" you have no idea how much I put off-road
vehicles through when attempting something as elementary to off-road as
jumping!
Rating: 8
Tuning • The J82 benefits from starting with an already proven platform
in the T4. Team Associated has had years and years of testing,
development, and race experience—and all of that has been refined over
the years, from the first 10T to the current T4. Seeing as the J82 is
basically a T4 with buggy looks, tuning the J82 is almost the same as
tuning a T4. With that in mind, you know that if Associated offers a
chassis adjustment, it's for fine-tuning for a track, not to correct a
design error.
Rating: 9
Conclusion
"The ease of driving a truck with the feel of a buggy;" that tag line
pretty much sums up the J82. I saw a buggy, I was driving a buggy, but
it was easy like a truck. JConcepts' idea of bringing the buggy look
back is novel; even a novice-level driver can get the hang of driving
the J82 quick. Of course, once you get used to how it drives, you can
also take advantage of its racing heritage as your skills progress.
Although 1/9 in "scale," the J82 works perfect on 1/10-sized tracks.
The $80 you spend on the conversion kit is reasonable, considering a
new set of tires and wheels cost almost the same. So if you've got a T4
laying around but you're a buggy fan and want something a little bigger
and a little easier to run, take a look at JConcepts and their J82
conversion.
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Manufacturer: J Concepts
Phone:
Address: 590 E. Minnehaha, Clermont, FL 34711
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