mr_bock

Just after having the SC installed I had to do a research test.... M030 suspension, engine cover on... got up to 180 mph rock steady with about 1000 rpm till redline in sixth gear. With the speedo pegged, there was no need to go any faster!!! Test results... all positive!!!!!!!!!!!!!!!!!!

I am a happy TPC customer

993inNC

160....PSS9's, low and no tray. Backed out of it, may have had a mile or two an hour more to go but.......the road wasn't up to the challange

'95 993

I hit an indicated 175 mph in my non varioram c2 with billet heads at Elvington airfield (where Richard Hammond crashed) it was still creeping up the speedo but I ran out of runway.

Boy it really focusses the mind when you have very large earth bank and farmers field ~ 200 yrds in front of you and you are doing an indicated 175mph and the braking point is behind you!

Glad I had big reds and cup sports on :-)

I didn't try again for vmax after that

John

AtlJimK

Not 2 b a noob but...

Did the test this week. Today FL SR471 = 150 ~4 or there abouts, felt solid, stock susp., cooker on, on-coming traffic forced slow-down. Cruised @ 140+ for 1.5 minutes. Looking forward to the PSS9's. I can see the addictive nature of these cars now.

http://maps.google.com/maps?f=q&hl=e...wloc=addr&om=1

Prior speed tests>'03 Audi TT Quattro = 127 Camp mack rd, not safe.

http://maps.google.com/maps?f=q&hl=e...wloc=addr&om=1

2Many Cars

Here's how you can do it legally:

http://www.silverstateclassic.com/31...escription.htm

dcdude

+1. Actually, there was more than one poster wth this result. I was gonna say- time to dig your engine tray out of the landfill for those top speed runs. I'm no aerodynamic engineer, but the engine tray does flatten out the bottom. That has to reduce drag, but does it add downforce? Any experts? Chis Walrod?

WHB Porsche

Somebody said in a thread that they'd found in the workshop manual something about not testing the car above 95mph w/out the tray.

993MAN

280kmph in my Turbo 3.6. For anyone that has travelled NZ, it was in between the town of Murupara and Rotorua on the back roads. Pure flat straits and as smooth as with no pot holes. Probably the best road in the North Island.
The car was not done either, I chickened out.
That was a rush. Engine drip tray was off dammit. Might have got more had it been on.

Marco69

A flat bottom will help reduce turbulence and lift under the car. Depending on the configuration of the front and rear bumpers, down-force is possible at those speeds. This is how cars achieve down-force without using airfoils or wings today! Removing the engine tray may help with cooling, but will have a negative effect aerodynamically speaking!

quasr

Nice to live vicariously through you guys while reading this thread. I admit that I have had my 993 over the speed limit, but never at the top speeds you guys mention. Great to imagine that mine will maybe do somewhere near the speeds you indicate. Fun posting! Be careful out there. Thanks.

95FL993CAB

[QUOTE=AtlJimK;4938923]Not 2 b a noob but...

Did the test this week. Today FL SR471 = 150 ~4 or there abouts, felt solid, stock susp. on-coming traffic forced slow-down. Cruised @ 140+ for 1.5 minutes. Looking forward to the PSS9's. I can see the addictive nature of these cars now.

Were you going to the Seminole War recreation by any chance??? I wanted to go but was side tracked.
Fastest I have been is 145 and there was MUCH more left It felt very stable as well.
Ron

Amfab

About 13 years go coming through Nevada in my '84 Targa, with no spoilers, with my then wife, and a fully packed car I hit 147 mph (owners manual said top speed was 146 mph).
Those last 5 mph took forever because I hit the aerodynamic limit of that car with that HP.
The chin spoiler—that I did not have—on the '84 Carrera is a definite must after 120-130. The front gets scary light. . . I had so much crap in the back seats that I think that helped the rear stay down.

I swore I wouldn't do that again.

Images of a small bulge in the tire, causing a blow out at that speed are haunting. My mind goes back to parking on that one hill and turning the wheel to the curb, then getting out and seeing the tire mashed against the curb. . .
At about 125 mph my mind goes back to that picture and it unnerves me.

I am still amazed at modern tire design— although a friend of mine and his wife spent the better part of a year recovering from a Explorer/Firestone Rollover at 65 Mph on a skiing trip in Utah.

These are the types of images that come into my head in these situations and I am far from an adrenaline junkie, I get enough of that in daily life.

There is a lyric of a Police song "Synchronicity 2" that I remember when Im in situations like flying through the hills trying to break the back end lose or making a high speed run—even though that is not what the song is about—it goes:

"Daddy grips the wheel and stares alone into the distance,
He knows that something somewhere has to break."


The foregoing not withstanding, coming back across the U.S after buying my 993 Targa last year, I thought Id never go faster than 120 mph again, but 135mph was so stable feeling and so easily attainable it lulled me into safety at that speed, I swear I thought the car could come down safely if there were a blow out.
But 160mph? I don't think my over-active imagination would let me do it.
Put me in a GT-40 or something with a cage maybe, but 135mph in a rolling greenhouse is fine for me. . . as long as it is making those wonderful noises. . .

Marco69

I was keeping quite, but based on your statement, now I have to say it:

I haven't taken my 993 to its limits, but I have taken the car to 145mph in the rain!!! It wasn't a downpour, buit it had been raining for a couple of days so it was really wet with a light rain coming down at the moment. Car felt planted, but rear tires seemed to dance a bit, perhaps not enough tread left to clear the water at that speed - it was fun if only for a moment.

HJK

170 mph on the speedo, on expressways outbound from Bangkok, BUT..... Garmin then only gives 155 so I wonder about the big difference. Trust the garmin more then the speedo so should be able to find a few more miles per hour...
Henk

melman911

I use to have one of those. G60 or VR6?