taking it to the limiter in a STRAIGHT LINE can be totally pointless in some cars.
not talking about that, neither is porkie.
the Auris I race has a diesel engine with peak power well under 4k (3600 IIRC). in a straight line you are best off changing between 4 and 4.5k to get in the best powerband for the next gear and the best acceleration, trust me, ive timed it with the datron gear to check.
BUT on the track its a different story, and at some points ive taken it to the 5.5k limiter, even tho its WAY past the powerband, as changing up halfway round a corner or just before you need to change down is a waste of time and would make a slower lap.
Talking about taking cars with a low peak power to the rev limiter in a straight line is gay. Cars with a high peak power fair enough, but on a "normal" car its not straight lines where its useful to use all the revs.