decided to do a test today while waiting for any advice,
set the hyfire with a rev limit of 3k
took for run and did a datalog,
and im sure its not an ignition problem,
as the datalog shows the car going lean (ecu not being triggered when no ignition) when on the limiter,
where as when it hits 6k it goes mega rich, ecu still triggering yeah?
so its either a valvetrain problem (looking into this next week, stripping engine down) or a possible ecu setting problem?, anyone agree with the ignition being clear???
im going to take the top half of the engine apart next week etc to check lifters , cam etc, could the valve springs be weak after the rolling road giving valve bounce?
datalog here:
http://www.v8forum.co.uk/zip/log06.zip