Quote:
Originally Posted by RunNgun
The only other potential "old wives tale" might have to due with failing to stress the components of the engine during break-in so they mold with proper load bearing capacity. I'm not a car guy, but I think it's recommended that you redline it at least once in 6th gear after a few thousand miles just to let those parts set in before they sort of conform to weaker driving conditions. Like stretching out a rubber band. Basically if you take 2 identical Z's, one used for racing and the other used for driving to work at 45mph every day, the Z who's seen some track time will outperform the cruiser who's never hit 150mph.
I dunno if any of this is true or not, so feel free to chime in.
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You break a car in like ANY OTHER piece of equipment with moving parts that interface. Gradually and with constantly varying loads/speeds until you reach maximum rpm/load over the course of 500-1000 miles.
As to needing to drive your car 157mph to get the most out of it, I call BS.