The home of the UK's greatest sportscar
29/07/2008
Racing Green TVR has just finalised a timing chain and gear upgrade for the TVR Speed 6 engine. Following very careful design and machining the TVR Speed 6 timing gear has been heavily modified to remove weight as well as provide better lubrication. This modification has removed more than 1kg of weight from the primary and secondary timing gear lowering the inertia of this system significantly aiding engine pickup. This weight reduction reduces loads on all bearings in the system hence increasing bearing and chain life. To further increase life of the halftime sprocket bearings Racing Green TVR has redesigned the oil feed to supply an oil feed internally to these 2 bearings. This additional oil feed then further lubricates the entire timing chain system through splash from these now pressure fed bearings. The lifetime of these bearings is very dependant on timing chain tension and this must be correctly set during all engine services. This upgrade is only available during a full engine rebuild due to the engineering required. This upgraded oil feed to these bearings is designed to be fully internal to the timing chain cover so there is no likelihood that unneccessary external oil leaks can occur. Please contact Martin at Racing Green TVR for further information on this upgrade.