Tony Lockhart
Avoiding Stress, at Every Opportunity
Of course - so many engines are also just pretty horrid/ offer little more for being stretched like that: esp small, highly-boosted engines past 4k5 or so. And modern diesels, pretty much at all, past about 1/2-2/3rds the red line ( ...however far they have come with engine management in last 20yrs)
That’s down to the small turbochargers that are fitted to many engines, not just the one litre jobbies. With my 1.5 TSI engine it’s out of puff before 6k rpm, rev limiter comes in at 6250.