max. speed

[spark00]

Originally Posted by JAAY

my 2.5 on the dyno hit the limiter in 5th 168mph. I know it is not a S, but I thought I would share. and no dyno numbers.. way too embaressing.

I don't take mine to track nor about to race anyone out on the streets. Great looking convertible with Porsche badge that can do about 150mph is good enough for me. Only time I really speed through is at on ramps to expressways. Love that cornering!!!

To get back to the topic, fastest I've had my 99 none S was 105mph.

[JAAY]

Why am I in quotes? Just Curiouse.. I've been up to 143 on the street. Took way too long to get it up there though.

[Boxster02]

I took my 02 non S up to 145mph with the top down. Lots of turbulence and the front end felt very unstable. I was able to get my 02 Carrera coupe up to 175mph. That car felt much more stable and confident. All this done on public roads late at night. I would not recommend these speeds to anyone who does not have excellent driving skills.

[CJ_Boxster]

I've hit 136 in my non-S boxster with the top down.

150 in BMW Z3, car felt stable, glued to the road even, felt like the car weighed 10 tons. 146 in 99 boxster, quiet, very stable. I guess it helps ive got the GT3 bumper and side skirts on it. Ran out of road basically for the box, the Z3 was cooling down fast so I had to stop, didnt want it to cool the oil too much. Ummm, I think I went 90 in my 02 jeep liberty renegade... don't do that.

[Pat]

Originally Posted by boggtown

150 in BMW Z3, car felt stable, glued to the road even, felt like the car weighed 10 tons. 146 in 99 boxster, quiet, very stable. I guess it helps ive got the GT3 bumper and side skirts on it. Ran out of road basically for the box, the Z3 was cooling down fast so I had to stop, didnt want it to cool the oil too much. Ummm, I think I went 90 in my 02 jeep liberty renegade... don't do that.

Huh? The Z3 was cooling down fast so you had to stop? That seems very odd to me. Driving a car that fast puts a LOT of stress on the engine, creating a lot of heat. Regardless of ambient air speed, I can't imagine a car coolling off the faster you drive it. Hell, it seems to me it would get hotter at an accellerating rate, much like air resistance would increase at an accellerating rate.

[Adam]

Originally Posted by Pat

Huh? The Z3 was cooling down fast so you had to stop? That seems very odd to me. Driving a car that fast puts a LOT of stress on the engine, creating a lot of heat. Regardless of ambient air speed, I can't imagine a car coolling off the faster you drive it. Hell, it seems to me it would get hotter at an accellerating rate, much like air resistance would increase at an accellerating rate.

I've noticed this on my boxster. If the engine is not 100% warmed up...say 180 degrees instead of 185 and I drive fast the coolant temp actually drops 10-20 degrees sometimes.