If you redline a real road car, does it suddenly splutter and loose power?
Well if it did then my ex, a carburetted 1400 would've been 6 feet under by the time I'd driven it for 3 months.
I redlined that car broken (it had no torque so to get it to go anywhere, it needed to be ripped... and I was 18).
No rev limiter, and I took that car (stupidly) to well over 7000RPM.
Official "red-line" started at 6000RPM for that car.
Still to this day, its got all the power it ever had.