1994 993 c2 cab.

With the top open I have done 210 kmph (131 mph). Obviously the wind noise was... well loud. Otherwise have done 240 kmph (150 mph). Generally you tend to run into other cars on the road and have to slow down. Have comfortably cruised continuously at around 180 - 190 kmph. (110 - 120 mph).

Upto 220 kmph (138 mph) you can take off anytime you want by going a gear down. I have found it difficult to zoom after that.

Cheers

Zumbera

 

147 with the top down during one of my spur of the moment 2AM Vegas runs. The aerodynamics with the top down are terrible and made the car feel skittish and light...the desert cross-winds also didn't help

 

152mph indicated (revs at 6000+) on A12 very early Sunday morning. Slowed down and found a Police car sitting at a junction a couple of miles furthe ron. By then I was doing 90 (in a 60) so no problem to scrub off speed and pass at 75...

 

Radar measured 171 at Bridgestone test track (7.8 mile oval). This was consistant for about 5 laps. After several minutes at this speed, car was confidence inspiring. However there is not much drama in an 8 mile oval with 4,000 foot radius corners. We did have a modified 993TT in our group that went 197.

 

The fastest I've ever done in my 993 was just over 150 mph. However, in my 964 C2 during my Euro Delivery period, I decided to see what it would do. I lived not far from the Ring Road around Brussels, a 6 lane divided autoroute. I got up one Saturday morning and took off before there was any traffic. I centered myself in the center lane to allow a cushion in case of any side winds. I reached an indicated 161 mph on the digital trip computer. There were probably a few mph left, but by then I decided, "What's the point?". When I arrived back in the US, I calibrated my odometer and speedometer at several speeds on the Interstate over 10 mile stretches. I detemined that my speedometer was reading 2% low. That would have put me at 165 mph in Belgium. From that I concluded that at least with Porsches, you can bank on whatever top speed Porsche publishes in the owner's manual.

PS Anything over 110 mph through the kink at Road America is one helluva lot scarier than any top speed run on the highway.

Fred R.

 

On the German autobahns, I cruise at 240 km/hour. Now and then I go up above 270 briefly. Never drive overly fast when there is traffic, just when the autobahn is practically empty.

 

I saw 145mph on the speedo, car did'nt hold me back from going higher...fear of the law did.

 

On an open hiway, I get too chicken going any faster than 20 mph over the speed limit. What do they call that - reckess op? Being the only car at night is even more scary - doesn't mean a cop can't be hiding, and you can't see others braking up ahead to give warning.

There is one spot that I have hit hi speeds when reason was in short supply. I was going to write a description, but I didn't want to expose any of my secrets. There's a perfectly tailored off-ramp transition in the area: 140 in 5th. Only in the wee hours of the morning. But with traffic the way it has been, even those hours don't guarantee privacy any more. Also, in 3 years, I once saw a cop at a perfectly disguised hiding spot near my turn-in point. So I haven't attempted it recently due to the traffic, and don't plan on doing it much in the future because of the vulnerability.

I hit 120 at Putnam with a strong headwind this spring!

 

Terry Adams -- over 6000 rpm in 6th with only 130 miles!! So much for following break-in procedures . . .

 

I think we're luckier here in Europe. Speeds in the region of 100mph are completely normal and you can easily cross most of Europe (apart from maybe Switz.) at that speed.

My max was about 270kmh = 165mph, following a 996 Turbo, which pulled away easy! He must have been travelling (ie keeping it constantly) at about 180mph.

I think the ideal crusing speed for the car would be around 135mph as it feels most stable at that speed. Unfortunately there are other people on the road...

By the way, if your car doesn't feel stable at over 110mph you may need either:
- an alignment
- replacing the suspension bushes
- checking the rear spoiler wall

 

[quote]Originally posted by Riccardo:
<strong>
By the way, if your car doesn't feel stable at over 110mph you may need either:
- an alignment
- replacing the suspension bushes
- checking the rear spoiler wall</strong><hr></blockquote>

Riccardo, here in desert planet, we also get the "insane" chance to cruise at non-recommended speeds, at 120 mph and above, my '95 C4 is quite scary, the front-end wonders and feels unstable. I have been told by local Porsche after a test drive that this is due to my new 245 Bridgestone S03s front tires and the rough pavement. My point is , tires are also a major cause for instability at high speeds. <img src="graemlins/beerchug.gif" border="0" alt="[cheers]" />

 

135 back stretch at R/A....But I'm slow!

 

[quote]Originally posted by 993PET:
<strong>145mph indicated on the back straight at Mid-Ohio,
after the kink. Throw the anchors out (pagid orange) at the 200' marker cone, into third gear for Madness!

</strong><hr></blockquote>

You must have some engine in that ride or a very optimistic speedo.
I have been in a 996 GT2 and we were barely at 150. In my race car I don't think I have seen over 135. Heck a 996GT3RS doesn't do over 155.
I calculated my speed according to the rpm I was turning at the brake zone in that particular gear.

Tell me your secret please.

 

Since I've only had the car for a short time now, reached about 125 mph on the Calif I-14 "test track" just north of Los Angeles.

 

[quote]Originally posted by sy308:
<strong>the average person with slight training can handle speeds up to about 150 without getting into trouble.</strong><hr></blockquote>

Hey man, where do you come up with this stuff? A few days ago you said that the 993 clutch was only good for 40k miles (and you never responded to that) and now you're saying that the average person can handle speeds up to about 150 without getting into trouble? Are you smoking Crack? Have you ever gone that fast? I would consider my wife an average driver (not an average person though) and I would literally JUMP out of the car at 80mph if she told me she was going to try it at 150 mph.

Most average drivers that I have instructed over the last 10 years can't handle driving at 110mph, much less 150 mph. And that's on a damn racetrack with everyone going the same way. Add in all the unknowns on the street, and I don't know any average drivers that could drive 150 mph on the street.

Maybe you should try a little <img src="graemlins/icon501.gif" border="0" alt="[icon501]" />

E. J.