Quote:
Originally Posted by Texan Engineer
I got my 128i w/ ZMP up to 147 mph (GPS verified, well, at least crappy iPhone GPS speedo app verified) - car indicated a bit over 150/155-ish during ED. I ran out of road and didn't bother going out further to push it more, but it didn't seem like the 128i had too much more to give. Drank half a tank in just 30 minutes!
Anyone actually max out a 128i (N52) - not the speed limiter, but the true drag/engine max speed?
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Three months ago I was able to top-out my 128i ZSP model coupe, fully loaded as I was relocating to the west coast after working (natural gas plant build) in the east. In early-morning deserted South Dakota I was able to see 155 mph, and that was after the 151 attempt when a Rest Stop Ahead sign warned, I backed out then.
Have since fitted M3 LCA and soon the on-hand Powerflex rsfb, and aFe Stage 2 intake. Now that I know the ts, I'm good to go legal, most of the time anyway. (50k, 6mt N52, stock)