Originally posted by Peter1998
220 km / near 8000rpm limited by my 3.91 diff.. i dont want to go higher lol coz my engine will blow..
I was doing some math here, if you're on the stock 225/50/16 tires, have a 3.91 diff, and are reading 220km/h off the stock speedometer, then you're more then likely doing like 205km/h or so (7% error on the stock speedo, when I govern at 206km/h my speedo almost reads 220kmh), then you should be at like 6750rpm @ the true 205km/h, and 7250rpm @ 220km/h.
I'm with Pat on this one, to just get to 7400rpm you need some decent valvetrain strengthening (springs.....etc).
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