top speed of a 72' 240z

[Zs-ondabrain]

140 MPH on I=5 near Everett, Washington. Certified by the State Trooper that clocked me and gave me one hell of a ticket.

My 70' has a Stage two cam, 6 into 1 header, 2.5" exhaust, lowered, 16" wheel, 205x50 r16's, front spoiler, 4speed out of a 72 240Z. and thats all

[280zgod]

i have a 75 280 but with just headers and exhaust and a zx 5 speed i got it up to 151 on I-5 heading back to college at 2am a few weeks ago... the radar machines the chp have out on the roads here in stockton verified my speed took me probably 5 minutes to get it up there from 85 mph all ion 5th gear. i was pushing 5700 in fifth. no power left, which was weird the car just wouldnt go any faster. this led me to put in the stage 3 cam last weekend, but i botched that job and now my car wont run oh well. it was fun while it lasted

[That Ozzy Guy]

140 mph (225kph) is an insane speed in a 30+ year old car. Hope your brakes are up to the task if you need them.

[Zs-ondabrain]

My 70' 240Z is 99% rust free, my whole suspension has been rebuilt (urathane) and I have brand new toyota 4-piston calipers and Green Stuff pads in the front, 280zx rotors and 240sx calipers in the rear and Earls S.S. braided brake lines in all 4 corners. YUP, I can stop if I really want to. Besides, the doctor said it is'nt too habit forming.

Dave.

[That Ozzy Guy]

Doctor was wrong

[Airjockie]

with my setup...3rd gear, 6500 rpm's tapped 100 mph...I was to scared to push it into 4th....

bored/polished/cam/fuel injected L28, with the 4 speed.

[Alfadog]

I'd like to know how accurate 30 year old speedos are at such high speeds.

[280zgod]

my speedometers is accurate to about plus or minus 3 mph according to those radar guns the cops have

[Murph]

I've had my zed to 170kmh once....gotta say that was rather scary! But fun none the less. After I did it I decided I wont be doing it again in any hurry and haven't since. I've seen about 240kmh in my mates R32 skyline before....but 170 in the zed was still the more scary!