MG-Lola EX257

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Dyson Racing's MG-Lola EX257 at the 2005 Petit Le Mans.

The MG-Lola EX257 (sometimes referred to as simply MG EX257) is a

MG car company for their attempt to compete again at the 24 Hours of Le Mans in 2001
. The car has had many years of mixed success since its introduction, even in privateer hands.

It was Lola's only car built specifically to

LMP675 regulations, and was known by their designation as the Lola B01/60. The last EX257 in original specification was retired from racing in 2007.[1]

Development

Following a resurgence for the MG brand in the beginnings of the 21st century, the decision was made to expand the brand into motorsports including touring car and sports car racing. MG had previously had success at the 24 Hours of Le Mans many decades ago, yet had never scored an overall win. At approximately the same time, the Automobile Club de l'Ouest (ACO) had changed the Le Mans Prototype regulations for Le Mans, making it possible for two different classes of prototype to be capable of taking an overall win. This class, known as LMP675, would use smaller turbocharged engines yet would be lighter and more nimble, making it possible for them to compete with the larger, more powerful LMP900 class.

Seeing an opportunity to use a production-based engine in an LMP675 instead of a custom-built engine that would be larger than anything MG had in their production cars at the time, MG decided to enter into this new class in agreement with

Audi R8
, a single rollbar was used behind the driver, instead of a long rollbar that covered the entire width of the cockpit. In the rear, the wing was mounted low on the chassis in order to increase overall top speed. In the end, the EX257 was very light at approximately 690 kg at its launch (675 kg being the minimum allowed by the rules).

For an engine, MG turned to Advanced Engine Research (AER) for construction of their engine and Garrett for turbocharging it. Using some elements of MG's production engines, the new 2.0 Litre turbocharged Inline-4 known as the MG XP20 (AER designation P07) came to approximately 500 hp, limited by air restrictors put in place by the ACO to equalize cars.

Modifications

In 2003, the Intersport Racing team considered that the MG engine was lacking the power necessary for tracks used in the American Le Mans Series. The team transplanted a Judd KV675 naturally aspirated V8 engine in place of the MG XP20. This required the removal of the large turbo inlet, replacing it with an air inlet mounted behind the cockpit. This car, referred to by its Lola designation only due to the loss of the MG engine, had a short career with some success.

Racing history

The new MG-Lola EX257 made its competition debut at the

MG
Sport & Racing Ltd. The new cars showed their pace, qualifying 14th and 17th overall, the fastest two times amongst LMP675. The problems with the LMP675 formula showed their signs early in the race. Although quick even with their small engines, these engines were highly stressed and lacked the capabilities to survive long distances. Following a mere 30 laps, one MG was forced to retire due to exhaust failure. A few hours later, the second MG succumb to an oil leak, leaving MG retired from the event at a very early stage.

For 2002, the EX257s were offered to customers for the first time. Two American teams, KnightHawk Racing and Intersport Racing, would seize the opportunity and purchase one chassis each, for competition throughout the American Le Mans Series season. Improvements to the EX257 provided greater durability, shown at Sebring with Intersport taking the LMP675 win and seventh overall, while KnightHawk took third in LMP675. Over the rest of the season, the pair of EX257s dominated the series, taking four more wins. KnightHawk took the LMP675 championship by a single point over Intersport. Also, for the final four races of the season, a third EX257 joined the series, in the hands of Dyson Racing, who managed fifth in the championship although taking part in just a handful of races. Back at Le Mans, the factory MG team again returned with their two EX257s. Their reliability was improved, as both cars survived further than they had the previous year. Gearbox problems eliminated one car after 129 laps. The second car was running strong until the final few hours of the race, when the engine let go. The American KnightHawk team also participated, but their car succumbed to fire during the night.

After two years of being unable to finish at Le Mans and financial strain on the

Lola continued selling the cars to customers, offering continued technical support along with Advanced Engine Research. In the American Le Mans Series, KnightHawk Racing left; its place was taken by a second Dyson Racing EX257. Both Dyson and Intersport traded wins off during the entire season, with the EX257 winning every race that year to give Dyson the championship. Notably, the #16 Dyson entry, piloted by James Weaver and Butch Leitzinger, took an overall victory at the Infineon Raceway round, the first time an LMP675 car had pulled off the upset. However, Intersport made an unusual decision for the final round at Petit Le Mans, deciding to replace the turbocharged MG engine with a new naturally aspirated Judd
KV675 V8. This forced the team to make some mechanical changes to their car (now referred to as B01/60), but it was successful and the team managed to take the LMP675 win. Even with this perfect season for the EX257, Le Mans still saw problems. A single entry from Intersport failed to finish yet again, due to an engine failure after a mere 102 laps.

The ACO decided to alter the Le Mans Prototype rules due to the inherent problems of the LMP675 class. The classes were restructured into LMP1 and LMP2, and the MG's found themselves moved into the top LMP1 class. Over in Europe,

Mosport
, the team had to settle for second in the championship. Intersport's hybrid car failed to perform, managing to score points in only two races. For Le Mans, both Ray Mallock, Ltd. and Intersport participated, but once again neither car finished. Intersport's car was taken out in an accident, while RML's entry blew an engine in the closing hours of the race.

Autocon Motorsport's EX257 in 2006.

Following the dismal performance of Intersport's hybrid B01/60, the car was retired for 2005. This left only the two-car Dyson team in the

Le Mans Endurance Series. However, RML had made extensive modifications to their car during the off-season, including the addition of a Judd XV675 V8 similar to Intersport's modification, leading to the new car being renamed the MG-Lola EX264. The car was now transferred to the LMP2 class, while Dyson's unmodified cars remained in LMP1. Dyson once again suffered against the R8s, although it did manage to take two wins over the season, coming second in the LMP1 championship. In Europe, RML saw better performance against their LMP2 competition, including their first class victory at Istanbul Park. RML managed to finish second in the LMP2 championship behind Chamberlain-Synergy Motorsport. However the MG's greatest success came at Le Mans, with RML managing to not only score the car's first finish in the race, but also taking the LMP2 class victory by a mere four laps over a pair of Paul Belmondo Racing Courages
.

For 2006, Dyson Racing decided that the old EX257 was no longer competitive, and purchased newer

Audi R10
.

2007 began to see the end of the EX257. The final original car still in competition, Autocon Motorsport's entry, began the

Grand Prix of Long Beach
.

Chassis history

The following is a list of the owners of each EX257 or B01/60 chassis. Intersport's #HU-01 and RML's #HU-03 were the chassis modified to fit a Judd engine. #HU-05 was planned but never built.

#HU-01:

  • MG
    Sport & Racing, Ltd. (2001)
  • Intersport Racing (2002–2004)

#HU-02:

  • MG
    Sport & Racing, Ltd. (2001–2002)
  • Ray Mallock Ltd.
    (2003–2011)

#HU-03:

#HU-04:

  • KnightHawk Racing (2002)
  • Dyson Racing (2003–2005)
  • Autocon Motorsports (2006–2007)

#HU-06:

References

  1. ^ "Mulsanne's Corner: 2001-2004 Lola B01/60 (MG EX257)".

External links

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