I picked up my 300 yesterday and was racing my mate in his Renault 19, I got upto about 4,000 rpm in 4th gear and the car wouldn't go anymore ! He nearly beat me ! What does the speed limit restriction feel like and could this be the cause ?

 

speed limiter is 148mph in the n/a and 155mph in the TT. You likely have a sick Z without more symptoms I have no idea what the problem could be.

 

It is a Japanese Import and I thought some of them had a speed restriction around the 180kph mark. Maybe wrong ! If someone could enlighten me I would be grateful !

 

TT or NA?

'91 300ZX NA 2+2
'89 240SX Coupe