mbenzCL55

When I get a chance to speed lets say I'm doing 110MPH the RPM meter if I saw correctly was at 5000RPM in 5th gear? maybe below 5000RPM slightly, how would it be possible for me to do 150MPH if I redline at 6000RPM? Wouldn't the transmission be at its peak or, blow up? at 6000RPM I would guess I'd be at 120MPH or so, someone fill me in on this I'm not too knowledgeable in this field, thanks.

PS
I don't ever plan on doing 150MPH I just want to know what my car is capable of.

mbenzCL55

bump

BlownV8

ECU limited to 155 MPH.

mbenzCL55

I'm talking about the transmission itself, at 110MPH im at 5,000RPM or so, how can I achieve 155 with only 1,000RPM remaining?

BlownV8

You need to look at your RPM/gear again. What you are saying is incorrect unless your tranny is slipping.

BlownV8

See chart. I had to search for the gear ratios so I hope this is correct.

mbenzCL55

what are the symptoms of a slipping transmission? I would've never guessed my transmission was slipping, seems really solid.

mbenzCL55

I actually tested it again today and what was happening was when I floor it the rpm flys up to 5 even at 80mph its just going back to 4th I think that's what I was seeing because all autos do this, I learned this when I was doing 100mph earlier at 3000rpm

momentum59

I've hit 171 in my CL60. I would imagine the 55 to be capable of 180+ very easily if the governor is removed in the ecu

BlownV8

His is not a kompressor engine but the 2003+ should be able to hit that mark.