 The
ARX-01a's suspension design was ultimately limited by the layout of the
donor Courage LC75. That is, it would have been difficult to
design anything more sophisticated than conventional pushrod/coilover
(i.e., torsion bars). But with that said, the -01a did start 2007 with
new Acura/Wirth Research designed upper and lower A-arms as well as
pushrods. In addition, new uprights replaced the Courage versions. |
 For 2008 a third spring element was added and the bellcranks revised on the -01b. |
 The Acura's brakes and upright are covered in a carbon shroud to help focus and direct cooling flow. Fronts here: |
 Rears here. |
| Acura ARX-01a front suspension bellcrank. |  | | Acura ARX-01b bellcrank. |  |
|
 The
Acura ARX-01a's rear end reveals upper and lower A-arms actuated by
pushrods pivoting on bell cranks tied to coil over springs and
anti-roll bars. The ARB is actuated via a pushrod and are mounted
at the rear of the gearbox. Here was can see the separate cast
aluminum bellhousing that is sandwiched between the LM-V8 and the
Hewland gearbox. |
 The
obvious difference between the above and the -01b here is the location
and routing of the exhausts, though this detail appeared in late 2007
on the -01a and wasn't unique to the -01b. Notice that the pickup point for
the structural brace connecting the rear of the tub to the -01b's new
integral cast magnesium bellhousing/gearbox is higher. |
 In 2008 a third spring element was added at the rear as part of the -01b package. |
| Changes were also made to the rear bell cranks. 2007 here. |  | | 2008 |  |
|
 The
ARX-01b was redesigned to allow the entire rear end to be changed as
one unit. Here was can see an entire rear assembly consisting of
the rear undertray and attached legality side structures, gearbox
mounting structure that the entire assembly mounts to, rear wing mounts
and wing, as well as engine cover trailing edge. |
 The rear mounting structure attaches to the back of the gearbox via these mushroom pins. |
 The
pins locate into the four receptacles on the end of the gearbox and
secure not all too dissimilarly to how a piece of IKEA furniture fastens together. |
