Originally Posted by kidDynomite
Ace is good and get some good deals on their tires while your at it.
Jim at www.rcnitronation.com
is awesome to deal with too. He has a great selection of Kawahara stuff that isn't updated on their site yet. But he just had some stuff shot so they should be up soon. But I would suggest calling him and he'll update you personally.
has good stock on Mugen spares and options. Plus I believe all MTX-4 parts are 20% off.
Richey at Team Taylor I hear has great service and carries some harder to find stuff too.
RC Infos will be present at the championships of Europe 1/10 thermics
200mm, with Arnaud Buffat as a pilot and a your servant as a mechanic
and to defer.
For this occasion, we decided to make you discover a part of the
preparation of Mugen MTX3 of Arnaud Buffat. It is not a question of a
special preparation for the championship of Europe, because all that
we show you today was carried out in April, and thus was tested and
validated successfully in Suisse championship notament.
Important: all the work of reduction was completed in an "artisanal"
way: with a simple drilling machine, Dremel, some files, sandpaper, a
cutter, much of patience, a good amount of courage, a minimum of drink
containing Coke and cola of which we will conceal the name, a little
music, the smile, and the kindness of the neighbors for the noise.
The car was reduced considerably, on the one hand in order to gain in
acceleration, and on the other hand in way has to be able to have the
ballast where we want of it (lowering of the center of gravity
With this intention, we replaced the totality of the screws of the kit
by screws and bolts aluminium and titanium (according to the efforts
necessary). We also used nylon straps (colier Rylsan) in the place of
the parts and fastening screws of the servos. The rods were replaced
by the equivalent out of titanium, and certain parts were abandoned
(arch, for example).
Lightening of the masses in rotation:
The most important work was completed on the masses in rotation, of
which here details:
The wheel was bored (under the quatres runners), considerably reduced
in thickness. The runners were reduced (hole slightly larger than the
reduced runners option). The clutch disk (runner a part) was bored
same manner as the quatres masselotes.
Runners of limps speed:
The runners of gear box reduced in thickness, and were reduced
considerably with the cutter, in order to keep only surfaces of
contact on both sides screws of centering.
This reduction of the runners was a little a "gamble", we did not know
what that would give to the level reliability and endurance. After 7
races carried out with these reduced runners, we are completely
convinced to have reduced them without harming in anything the
performances or the Supports reliability of crowns:
The supports of crowns were bored (as you see it on the right), and
reduced in thickness on the level of the plates.
The support of crown which acts as cage of limps speed was also
slightly tiny room in external diameter.
The crowns were bored. They are fixed on their supports by 3 aluminium
Pulleys of belts:
The plastic pulleys were reduced: reduced in thickness, and flask
openings between each tooth (on the right)). The support of plastic
pulleys were tiny room in diamêtre on the level of fixing by screw
imbus, shortened, and their quatres facets was bored.
Support of disc of brake:
The original parts were replaced by a support-pulley 3Racing, which
was to him even tiny room in diameter and racourci.
The spacer of discs of brake was also reduced to him.
Easy way: we install the spacer ("ventilator") of disc in the opposite
direction of what is indicated by the note. According to the note, it
"draws" the air towards the interior of the discs of brake, and as the
two discs are not bored, the air cannot escape. It thus creates a
pressure on the two discs, and draws aside them... slightly making
them rub against the plates. By reversing the direction of the spacer,
the air is thorough towards outside... creating a depression having
for effect to plate the discs against the spacer.
Axes of transmission:
The two axes of transmission were reduced, notament the front axis as
you see it on the photograph (length, diameter).
The back axis (not of photo) has simply shortened him.
The body aluminium was tiny room in diameter.
Crowns of differential and wheel-free:
The crowns were reduced (bored), and the flasks were bored between
The back differential was reduced considerably by simple withdrawal of
an axis and its two bevel pinions. Only one axis with two satelittes
is more than sufficient on the level solidity and reliability.
Profit on the masses in rotation:
Center limps speed (complete, with brake, pulleys of belts etc): 11
grams. Back differential: 7 grams. Free wheel before: 3 grams. Center
intermediaire before: 6 grams. Clutch: 8 grams. We thus gained on the
whole 35 grams on the masses in rotation.
A very detailed attention was paid to the general freedom of the
transmission. Thus the ball bearings (changed before the last race of
Swiss championship) were dismounted, empty of any lubricant (grease)
and were oiled with a special fine grease. After each race, they are
cavity redémontés and cleaned (flask removed, cleaned with powerful
cleaning bio which will be probably marketed from here September by
The MTX3 of Arnaud Buffat, prète for the championships of Europe in
The MTX3 of Arnaud Buffat was reduced considerably, especially on the
level of the masses in rotation. As explained précédement, this
reduction was carried out without tools private individual and is thus
with the range of all. We now have 35 grams of ballast which we can
place where we want it: generally 25 grams on the frame, on the left
of the accumulator of reception, under the tank, in order to balance
perfectly the MTX3 which is of heavier origin on the right than on the
left. The last 10 grams are sometimes placed at before (under foam),
to improve directivity of the car.