Restomod BMW M3 E30: Turbo upgrade from Redux Leichtbau

Restomod BMW M3 E30
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W o is there a company that calls itself Redux Leichtbau? In London, that's clear! The German influence certainly has something to do with the company's boss Simon Lord's preference for street cars and racing cars from BMW. He was particularly fond of the first M3, the E30 series. At first he wanted to build the perfect original M3 for himself, but now the project is getting bigger. In a series of 30 cars, Redux Leichtbau is bringing the M3 E30 onto the market as a restomod.

S14 engine with more displacement and forced ventilation

Lord was completely different from the former DTM racing cars Inspire on an M3 basis. For example with the engine. The naturally aspirated engines of the DTM racing cars are said to have reached a good 380 hp at 10,000 revs at the time - a value that Redux absolutely wanted to achieve in its M3. Exchanging the engine for a straight-six, V8 or V10 engine was not an option - that would be too common. Just classic tuning of the original engine with the internal identifier S14 was also out of the question; that would have scratched the reserves of the four-cylinder too much, which would then have had to be constantly overhauled.

Ultimately, it was clear: the base engine needs a little more meat than the standard M3 power unit. So Redux completely dismantled the existing engine and brought it from 2.3 to 2.5 liter displacement, as in the M3 Sport Evolution and in the later DTM versions. In addition to new pistons and connecting rods, a crankshaft from BMW Motorsport is moving in. A turbocharger including intercooler and the new engine electronics take care of the rest: With one bar of boost pressure, the engine now produces 395 hp and a maximum torque of 529 Newton meters. The engine should be able to withstand it, after all, it is derived directly from the block that BMW used in Formula 1 in the eighties - there with power values ​​of up to 1,400 hp.

Redux adapts the components to the additional power an

The approach to the engine, which, by the way, can also be ordered in a suction version, sets the tone for the rest of the car: Redux optimizes the components and adapts everything to the increased power, but remains so close as possible on the original M3. This is also evident in the drive train: the transmission - just like the differential - is overhauled and adapted to the increased torque. The flywheel and the two-disc clutch are new, as are the drive and cardan shafts. Customers can determine the sound of the specially made exhaust themselves; the owner of the first work shown here, who lives in California, opted foran acoustically more subtle variant with two catalytic converters.

Of course, the chassis and brakes will also be adapted. The three- or four-way adjustable dampers come from the British motorsport supplier EXE-TC, the brake system from AP Racing. On the number 1 of 30, it works with 330-millimeter discs and six-piston calipers at the front, while 304-millimeter and four-piston counterparts are used at the rear. Later Redux wants to upgrade to 355 discs in the front and 330 discs in the rear and even bring the whole thing onto the market in a carbon-ceramic version. The brake lives in Cinel wheels in the classic cross-spoke design of the DTM BMWs of the time. Redux uses Michelin Sport rounds as standard tires. Only first-time customers prefer to rely on Hoosier slick tires. You can do that even if the car is mainly used on your own private racetrack.

Leather and Alcantara in every corner

Redux lightweight construction
Brown leather shells and otherwise a lot of Alcantara: the interior of the BMW M3 E30 by Redux.

Speaking of the race track: You can do without the roll bar of the first Restomod-M3 E30. In general, almost anything is possible here. The BMW shown presents brown, leather-covered Recaro bucket seats, which contrast wonderfully with the dark Alcantara on the dashboard, steering wheel, A, B and C-pillars, door panels and roof. The trunk is also lined with Alcantara. The original rear seats give way to a removable rear seat, Redux replaces the gear knob with one in the style of a golf ball - but not that of the first Golf GTI, the British value that. Finally, the inmates' feet are bedded on fluffy wool carpets. Or, in the case of the driver, aluminum pedals. In addition to the engine and exhaust, an audio system from Alpine provides the sound. The series instruments give way to a large digital display.

The body also does not remain completely in series condition. Front and rear bumpers, the front fenders and the side skirts and, if desired, the roof, are made of soft carbon fiber; later the bonnet will also be replaced in this way. Before the body was spruced up andis painted, the M3 E30 has already undergone a full restoration, including dismantling, derusting and so on. Redux even takes care of the right restoration base, if desired, and draws on its Europe-wide network.

All of this is done by hand, which is why the British build the car between 6 and 24 Months. This will also affect the price. However, company boss Simon Lord does not reveal how exactly. At least not us. Anyone who “applies” for one of the 30 Redux M3 - original sound - will certainly be given a number.

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