Performance is all about pushing the envelope. As camshafts become more aggressive in the search for more power, these lobes make life increasingly difficult for valvesprings. This may seem like a ...

ガソリンエンジンやディーゼルエンジンにまず間違いなく装備されている吸排気バルブを電気モーターの力だけで動かす「インテリジェント・バルブ・アクチュエーション(Intelligent Valve Actuation：IVA)」システムが、イギリスのエンジニアリング企業「Camcon ...

For mild street engines, stock valve springs are more than adequate. But if you've screwed in a big bumpstick for strip-banging or banzai runnin', then pay attention. Our plan was simple: Install a ...