 The Courage LC75's rear end. |
 | While
seemingly identical to the Courage LC75 (left), much was changed on the Acura ARX-01a's rear end (bottom). The
primary difference was that the bodywork on the -01a was shortened by
150 mm, but the rear wing stayed in the original Courage position.
The primary identifying feature of this change is the much
shortened legality cheese wedge on the Acura as compared to the
Courage. Naturally the mounting tab for the
endplate stabilizer strut has been shifted forward on the ARX-01 to
accommodate the shortened cheese wedge. |
|
 The
original ARX-01a's rear end at the car's Sebring debut. Note
the exhausts exiting out above the top of the diffuser trailing edge.
The openings just behind each rear wheel are larger than on the
Courage LC75 given the trim line for the trailing edge of the bodyworks
is 150 mm forward and thus through a larger cross section of fender trailing edge at that
point; Wirth Research didn't alter the shape of the Courage LC75's rear
fenders but simply trimmed the bodywork forward. |
 On the -01a the engine cover sweeps up at the trailing edge, effectively
forming a spoiler. This element was detachable and could be
changed to suit car setup. The bulges in the center cover the
suspension linkage to the anti-roll bar.
|
 By
Petit 2007 the exhaust exit on the -01a had changed from exiting at the
trailing edge of the diffuser to now exiting over the top of the rear
bodywork. This detail carried over on the -01b.
|
 With
the introduction of the AX-01b in 2008, a number of details were
changed throughout the car and on the rear end. The bulge
covering the suspension anti-roll bar has obviously been redesigned.
On the -01b the rear trailing edge was now a removalable section
(note the parting line and latches). This allowed different
trailing edge shapes, in combination with endplates and rear fender
shapes, to
be tried as setup required. |
 There
were at least two different options available for the rear fender
trailing edge shape. This "trumpet" rear fender trailing edge
shape (Sebring 2008)... |
 ...And the original "plain" shape (Petit '08). |
 Different
engine cover trailing edge options, in combination with the rear fender
options, were available as well. The option shown here peaks at
the rear wing pylon. |
 Here's the same option but with a large variable height trailing edge gurney. |
 The "standard" tail and constant height engine cover trailing edge. |
 The ARX-01c's rear fender trailing edge bodywork is similar to the original
Courage LC75 and extends back further than the -a or -b's rear bodywork, terminating in
line
with
the rear wing. Note also that the rear legality structure is
different
with a convex leading edge ramp as compared back to the -01b. The rear brake intake has moved from the lower
position
up to
on top of the side pod ahead of the rear fender leading edge as similar
to the ARX-02a. |
