Arias Pistons 12.5:1 Compression 82mm Bore Honda B-series on 2040-parts.com

Audi RS5 TDI Concept gets electric turbo and 380bhp

The Audi RS5 TDI Concept (pictured) gets an electric turbo It’s two years since Audi revealed it was working on an electric turbo to be used in a twin-turbo setup, with the electric turbo able to offer boost pressure from much lower down the rev range than a normal turbo. That has turned in to the Audi RS5 TDI Concept, where Audi has replaced the normal RS5‘s V8 with a 3.0 litre TDI engine with a small electric turbo for low rev work and a bigger turbo to do the higher rev stuff. The electric turbo works from the off to provide maximum torque of 553lb/ft from just 1250rpm, before the bigger normal turbo takes over at 3,000rpm to continue the boost.

Rumor mill: Porsche 928 successor on the way?

Porsche is reportedly planning a spiritual successor to the front-engine, rear-drive 928 coupe, according to U.K. magazine Autocar. The new grand tourer, which could wear the 929 nameplate, will be based on a shortened version of the Porsche Panamera platform and will be offered in both coupe and convertible body styles.

Mercedes AMG GT gets new 503 bhp Twin-Turbo 4.0 litre V8 (video)

The new Mercedes AMG GT (pictured) gets the new 503 bhp Twin-Turbo 4.0 litre V8 We’ve speculated that the new Mercedes AMG GT – and, for that matter, futures ’63′ AMGs – will get a new twin-turbo V8 to provide the power as Mercedes look to move away from the naturally aspirated 6.2 litre V8 in cars like the SLS. And this is it. A new 4.0 litre twin-turbo V8 – the M178 engine – has been developed to replace the 6.2 litre V8 and, in initial tune, develops 503 bhp at 6250 rpm and 479lb/ft of torque from just 1750 rpm.