Nissan’s variable-compression turbo (VC-Turbo) is a unique engine capable of variable compression adjustment. Unlike traditional engines, which have a fixed compression ratio, the VC-Turbo engine ...

After decades of development, Nissan's VC-Turbo promised to revolutionize engines. But can it compete with Toyota's hybrids?

Engineers have been trying to perfect variable-compression engines for almost as long as engines have existed. So far, though, only Nissan has succeeded in bringing one to production. Its Variable ...

Harry Ricardo built the first known variable compression ratio engine as a test engine in the 1920s to study knock in aircraft engines. Variable compression ratio was achieved by raising or lowering ...

Analysis by automotive technology specialist Prodrive has demonstrated the ability of the Gomecsys GoEngine variable compression ratio concept to deliver a 40% improvement in fuel economy without the ...

Nissan brought the first, and only, variable-compression engine to market. But its future doesn't look bright. Complexity in ...

Despite the turbulence Nissan has faced over the past few years, some of its technology is undeniably impressive. Perhaps the crowning jewel of this engineering power is its variable compression ...

Something I've been kicking around for a while, and wanted to get opinions on: Is there a reason we can't use variable intake valve timing to "optimize" engine operation for E85 operation, while still ...