Click on each image below...
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2003 Pilbeam MP91 Specifications
| Layout: |
Mid-engine, rear-wheel
drive |
| Monocoque: |
Aluminum honeycomb monocoque
with steel roll hoops |
| Engine: |
Willman 6 (JPX/IEX) 6
cylinder, 120 cylinder angle, 4 valves/cylinder, breathing through one
41.7 mm restrictor |
| Displacement: |
3397 cc |
| Gearbox: |
Hewland NMT
6-speed sequential |
| Suspension: |
(f&r),
Unequal length wishbones, pushrod actuated, inboard rocker arms |
| Dampners: |
Koni 2812 2-way adjustable
and Eibach springs |
| Brakes: |
(f&r),
AP aluminum 4-piston calipers, carbon metallic pads, with AP ventilated
cast iron discs |
| Wheels: |
O.Z.
cast magnesium alloy |
| Tires: |
Dunlop |
| Length: |
4455 mm |
| Width: |
1900
mm |
| Wheelbase: |
2550 mm |
| Front Track: |
1500 mm |
| Rear Track: |
1600 mm |
| Weight: |
690 kgs. |
| Tank capacity: |
60
liters |
|
The
2003 Pilbeam MP91 is a development of the MP84. The Pilbeam chassis
was originally conceived for the FIA SR2 category which mandated an aluminum
honeycomb monocoque and ran at a minimum weight of 740 kilograms.
While the MP91 claims substantial aero gains over the -84 (40% more downforce
for 4% less drag), it is still dogged by its aluminum monocoque in attempting
to pare down to the ALMS class minimum of 675 kgs. While a valiant
effort for a small chassis constructor, the MP91 is still not a purpose
built -675 car and suffers performance-wise when compared to its MG
and DBA4-03
class competitors. 