Mugen Seiki MRX-5

Mugen Seiki MRX-5

Robert Pietsch is very satisfied with the testing of the new Mugen Seiki MRX5

(28.05.2010) The new Mugen MRX-5 is straining at the leash. Successful testing in both Europe and Japan has been completed on the development of the MRX-5 and Mugen Seiki Japan has given the go-ahead to go into full production effective immediately! Robert Pietsch, Mugen factory driver and chief designer of the MRX-5 was more than satisfied with the in intensive test program. His final conclusion: The new MRX-5 offers very high traction and lots of steering. The car is really easy to drive and above all is faster than its predecessor!

MSE: Robert, where have to done your testing?

Robert Pietsch: Shortly after I received the first prototype of the MRX-5 I completed one day of testing on my home track at Rosenheim, Germany. Afterwards I traveled to Italy to continue the test program under perfect conditions at Fiorano for two more days.

MSE: How does such a test program of a new car like the MRX-5 proceed?

Pietsch: First I started with the MRX-4X to get lap times as a reference. Then I did a shake down run with the MRX-5 to check whether the car was trimmed out and working properly. After the initial run I made some changes to the car and immediately I was faster in comparison to the MRX-4X. I was very happy with this result. My testing in Fiorano was proceeding very well. Step by step I changed the setting of the MRX-5: roll bars, spring, roll centre and other usual adjustments. I work systematically though all the steps in my program for testing and I was already fast on the first day in Fiorano then I have ever been.

MSE: What is your general impression, your conclusion of testing?

Pietsch: Very satisfying, absolutely. The MRX-5 worked flawlessly and reacted precisely to all the set up changes. Turning into corners is extremely good with extremely high traction. I did ongoing testing and the results where very clear all the time.

MSE: What else have you noticed?

Pietsch: Well from the very first lap I had the impression that the MRX-5 offer better acceleration. This have be verified in back to back tests between the MRX-4X and the MRX-5 using the same engine and gear ratios. Acceleration and the top speed of the MRX-5 are definitely better. Everything runs very free and smooth.

MSE: Which handling characteristics will the racer enjoy the most from the MRX-5?

Pietsch: I am very convinced that the racers will have great accomplishments with the MRX-5. the rear end is very stable, there is plenty of steering, the car is very efficient which creates lots of speed thought the whole corner. The well known quality of the MRX-4X has remained constant but at the end of the lap the racer will be faster with the new MRX-5!

MSE: Which preferences have you focused on while designing this car?

Pietsch: The MRX-5 offers many innovations. I took special care to focus on certain aspects. For example, the front and rear belt can be changed with just a little time effort. Changes to the roll centre can be done without any disassembly. Furthermore it is much more practical that the fuel tank be removed upwards and most notably the whole radio tray including the receiver box can be taken off easily by loosening only three screws. Not to forget the highly effective brake on the rear axle. All aspects of this car gain you time on maintenance.

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