As most tuners know, in interference motors timing belts/timing chains hold the fate of your tune and motor’s well being within their grasp. Over time during normal operation factory chains are known to stretch modifying a motor’s timing . This issue is greatly exacerbated with the use of aftermarket camshafts and aggressive tunes. Several timing chain tensioners have been released to help maintain the slack of the chain. Toda has increased reliability even further with the introduction of their heavy duty timing chains. The chain has been engineer to “reduce chain stretching by as much as 35%”.

[source: toda]