Unlimited Auto
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Zerlegter Getriebesatz mit Zahnraedern, Wellen und Synchronringen

Chip tuning and performance upgrades in Weiden in der Oberpfalz

Software optimisation, turbo conversions, engine building, at Unlimited Auto.

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SERVICES

Performance upgrades: what we do

01

Chip tuning and software optimisation

How much an engine really gains from software depends on the unit itself: a forced-induction engine with headroom from the factory responds far more strongly than a naturally aspirated one. With chip tuning in Weiden in der Oberpfalz we tell you up front what your particular engine has in it. Instead of promising a percentage straight out of a catalogue.
02

Turbo conversions for naturally aspirated engines

Forced induction is more than just a turbocharger: it takes the right compression ratio, charge-air cooling, fuel supply, exhaust routing, cooling, oil supply, engine management that can carry the load, and a clutch that will actually put the power down. We plan the conversion as one complete package.
03

Engine building, engine conversions and gearbox matching

We carry out engine rebuilds and engine conversions in our own workshop. If a unit is going to see more boost, the internals have to be up to it. There is no way around that.
04

Bespoke mapping instead of off-the-shelf software

A setup gets measured and adjusted, not simply claimed. Our own E36 was documented on the dyno at 1,012 hp and 1,182 Nm with 2 bar of boost. That is the benchmark we apply to our mapping work.
Poliertes Rad an einem rot lackierten Fahrzeug, im Hintergrund gelber Lack

OVERVIEW

Getting your chip tuning registered: what the TÜV requires

A performance upgrade changes the vehicle's registered data. Which means it has to be officially approved and entered in the papers. For the brakes, suspension, tyres and emissions behaviour you have to prove that the car is safe and road-legal in its new configuration. We coordinate the inspection and registration of conversions with TÜV SÜD and prepare the vehicle so the inspector finds everything he is looking for.

Unlimited Auto tells you in advance what a conversion really needs. Even when the answer is that the brakes and suspension have to come first. Without registration you cannot drive your car legally on the road. That is exactly why we plan every conversion in Bavaria to be approvable from day one.

HOW WE WORK

Roter BMW E36 Breitbau mit Heckflügel auf dem Prüfstand bei Unlimited Auto in Weiden in der Oberpfalz

Every power figure comes off the dyno

We do not quote numbers we have not measured. For the BMW E36 with the V12 biturbo, an independent dyno recorded 1,012 hp and 1,182 Nm at 2 bar of boost. Your car goes the same way. Measure, map, measure again.

Grossaufnahme von Kipphebeln und Ventilfedern im offenen Zylinderkopf

BY THE NUMBERS

1,012 hp and 1,182 Nm: our own proof

1,012 hp

Power on an independent dyno

1,182 Nm

Torque

2 bar

Boost pressure

BMW E36 with V12 biturbo

Base vehicle

8 years

In-house build time

COMMON QUESTIONS

Frequently asked questions about chip tuning and performance upgrades

That can only be answered honestly engine by engine. Turbocharged engines with factory headroom gain noticeably, while naturally aspirated engines respond far less to software. There the route runs through hardware, and in extreme cases through forced induction. We look at your car and tell you what is realistic and what the drivetrain will take long term.

Yes. Turbo conversions on naturally aspirated engines are a speciality of Unlimited Auto in Weiden in der Oberpfalz. Our own showcase project is a BMW V12 with biturbo charging. A conversion like that covers the engine build, charge-air and cooling systems, fuel supply, exhaust system, engine management and mapping.

Yes, a performance upgrade has to be entered in the vehicle documents. Anyone wanting their chip tuning registered in Bavaria needs the right documentation: we coordinate the inspection with TÜV SÜD and make sure the brakes, suspension and tyres match the new power level.

No. Unlimited Auto is an independent master workshop in Weiden in der Oberpfalz and works on vehicles of every make. We build body kits and performance packages across all brands. The fact that many of our own builds are BMWs simply comes down to our own preference. Your base car is welcome to be something else.

GET STARTED

Plan your performance upgrade, with a master workshop behind you

Tell us about your car and your goal. We'll tell you honestly what's possible.

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