Out of interest and this is just aimed at sparking a debate and hearing tuners views
the 550-650bhp usually quoted as the limit for the rods, where does this come from?
Have tuners tested to destruction, I know its hard finding on different specs with reliability over a certain amount of miles.
or is it a threshold just over rs500 btcc power that is just assume to be near the limit.
Has anyone ever gone to 700 on standard rods reliably?