Manhart Racing puts a 5.0-liter V10 engine in the Bmw Z4

Article by Christian Andrei, on August 26, 2010

While the BMW Z4’s M variant already had enough power at its hand, Gunther Manhart saw it fit to create a new engine that’s custom-made for the roadster. The new engine replaced the 10-cylinder engine that came as a standard to the BMW Z4.

Manhart, who has gained popularity for rebuilding existing BMW engines to give out additional power for 25 years, managed to squeeze in a 5.0 liter V10 engine into the engine bay of the Z4. Because the Z4’s engine bay is inherently narrow, it took quite a lot of time to put in the new engine in place of the old 343-horsepower engine that initially powered the BMW Z4 M model.

With the 5.0-liter V10 engine under the hood, the Manhart Z4 now delivers an impressive 550 horsepower! Because the original engine is powerful in its own right and could blaze through regulated speed limits, the Z4, as a standard, had a V-Max restriction that keeps the top speed at 250 km/h.

However, Manhart removed that for the Manhart Racing version of the BMW Z4, adding in a catalytic converter and a DME electronic unit as well. The engine is also mated to an M5 E60 6-speed manual transmission. The clutch is by Fichtel & Sachs, and includes an M5 E60 differential.

The engine’s exhaust system is comprised of four muffler tips with HJS racing catalytic converters. With the V-Max restricter removed, the Manhart Z4’s V10 engine can be brought to heel through the Bilstein B16 PSS10 coilovers.

Power is transferred from the engine to the car’s Black BBS Challenge wheels, which are mated to 8.5Jx19 ET35 235/35ZR19 at the front, and 10Jx19 ET20 285/30ZR19 in the rear.

As for performance, the V10 engine’s power allows the Z4 to zip from 0 to 100 kilometers in only 3.9 seconds! The Manhart Z4 also features an excellent power-to-weight ratio of 2.6 kg per HP, translating into a kerb weight of 1450 kilograms.

Press Release

Manhart Racing – BMW Z4 V10

The M version of the BMW Z4 is famously known by nature for being anything but underpowered, since the chassis of the sports convertible already has a heck of a lot of work with the 343 HP and the forward thrust in the lower gears could last forever. As is generally known however, the sport oriented motorist can never have enough power at his command. Sufficient cause for Gunther Manhart, who by now has over 25 years experience in rebuilding BMW engines - a first for Europe -- to transplant a brand new, much stronger heart into the Z4. The transplantation of the ten cylinder engine from the current M5 generation into the narrow engine bay of the roadster was anything but a walk in the park and it earned the Manhart Racing engineers quite a few grey hairs.

Nevertheless: everything fitted in the end and now the fire of a 5.0 litre V10 engine with an impressive output of 550 HP blazes above the front axle of the Z4. A catalytic converter, a modified DME electronic control unit and the removal of the factory-set V-Max restriction up to 250 km/h are part of the rebuild. Consistent to the M5 V10 engine Manhart Racing has treated the Z4 to an original M5 E60 6 gear manual transmission which includes a Fichtel & Sachs clutch and a M5 E60 differential. An AC Schnitzer stainless steel exhaust system with four muffler tips which was fitted with HJS racing catalytic converters caters for a perfect V10 sound at the rear.

The Manhart Z4 M V10 goes like hell and thanks to the perfectly tuned Bilstein B16 PSS10 coilovers, the virtually unrestrained power of 550 HP can be brought under control to the tarmac. Black BBS Challenge wheels rotate in the wheel arches of the Manhart Z4 M V10 with 8.5Jx19 ET35 235/35ZR19 front tyres and 10Jx19 ET20 285/30ZR19 back tyres. Conclusion: 550 HP ten cylinders, an acceleration from 0 to 100 km/h in 3.9 seconds, kerb weight 1450kg, 2.6kg per HP... who could guess that these impressive figures belong to a Z4? Hardly anyone, however Manhart Racing turns dreams into reality and does this with 25 years experience.

Topics: bmw, bmw z4, sports car

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