Purists may have balked when Porsche switched from naturally aspirated to turbocharged flat-sixes in the 911 Carrera, but tuners likely didn't. The gains made by English tuner Litchfield with the new 992-generation Porsche 911 Carrera S show the tuning potential that comes with going turbo. Litchfield claims that with an ECU remap, it was able to boost the 3.0-liter flat-six in the 992 Carrera S to 572 horsepower.

This story was updated on 8/28/19 with comment from Iain Litchfield.

Litchfield

Litchfield Motors head Iain Litchfield told R&T over email that the company measured the 992 Carrera S as generating 475 crank horsepower (Porsche's official figure is a likely conservative 444 hp). That means the tune is good for nearly 100 horsepower, and torque rises from 390 to 480 lb-ft. Yes, that's 911 Turbo S territory.

No hardware changes need to be made to achieve these gains, and smoothness and drivability apparently haven't been impacted. He told us the significant power bump comes from a less-restrictive turbo manifold than the one used in the old 911 Carrera S and GTS.

Amazingly, Litchfield thinks he can get the same power and torque figures out of a base 992 Carrera. The engine in that car is broadly similar to the one in the 992 Carrera S, but it's worth noting that the Carrera uses smaller turbine and compressor wheels in its turbochargers, and runs lower boost pressure. Litchfield told us he hasn't had a base Carrera in the shop yet, so we'll have to wait for definitive results.

The shop is also developing new exhaust systems with Remus and Akrapovic for the 992, which should help boost power even further.

The price for all this is £1194.00 including tax, which at the time of writing, is equivalent to $1467. Unfortunately, this isn't available for those in the US, since the tune requires bringing the car to Litchfield's facility. Still, it gets us excited to see what other tuners can do with the new 911.

via Motor1

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