What's the fastest you've got your Deville up to?

I topped mine out at 110 MPH and then the computer cut the gas off to the engine. If it didn't have that cut off switch I could have easily got up to 130-140 MPH. In the owners manual it says that they cut off the engine there because the tires aren't rated for speeds over 110, I wonder if I'd be able to have that cut off switch disabled if I got better rated tires?
 
So what's the fastest you've toped your Deville out at?

Hey 420:  I see that you love speed also, had my 81 Fleetwood up to 145km the other day. Backed off because the speedo doesn't go any higher than that and i didn't want to damage the thing or the car. Yeah faster rated tires, now were talking.

taken from the FAQ on tire ratings thread:

180 kph, the limiter as car is equipped with S rated Michelins. That's fast enough.
 
The fastest I drove any car was 240, my BIL's 5.0 LX back in the day. V rated Gatorbacks on that Mustang.
Look back on that now and think how stupid it was.

But boy what fun you had!!! Great post on the tires there Katz.

GM mandates top speed will not excede speed rating of  tires car was built with. Indy Allante could run 155mph before speed limiter kicked in, I knew someone who did it on the D.C. beltway, he said it was a trip,  never lifting as engine started misfiring. I, myself, 125 mph in a 95 SLS could of gone faster I think ,but I was on a narrow 2 lane highway  in deer country at 1 am. I am courious what a euro seville would top out at. 

I'm curious about what the sls would have looked like at 1am had it hit a deer at 125mph.  Do not have disabled airbags while driving on a  Bucks County Pa. country road. 

Its just part of the things that happen when one is young and doesn't think past tommorrow, this tread relates to speed not sense.At 20 mph+ over the penalties are high.... fines, licence problems,jail, and collision and the results of it.

Agreed. As I've gotten older I have learned there is a time and place for everything. 

Hey, Ive put my 1981 Coupe Deville at 85mph would of done more but I did not want to break the speedo. And I put my cts to 100mph.

I got my 84 Sedan DeVille to where you could not even see the needle than let off so I figure 95 MPH!!!!

143mph, oh that was in my police intersepter Suburban.

Armed bank robbery just started, empty road, I couldn't resist. Was one of the first responding units too. Not that I really did anything but sit in the parking lot with a shotgun looking scary.
 
Leo

quote:

ORIGINAL: brougham1

Hey 420:  I see that you love speed also, had my 81 Fleetwood up to 145km the other day. Backed off because the speedo doesn't go any higher than that and i didn't want to damage the thing or the car. Yeah faster rated tires, now were talking.

not that i want to burst an bubbles, but that is only around 90 mph.
here in SoCa we cruise at that speed every day.

quote:

ORIGINAL: Doctor Leo

143mph, oh that was in my police intersepter Suburban.

Armed bank robbery just started, empty road, I couldn't resist. Was one of the first responding units too. Not that I really did anything but sit in the parking lot with a shotgun looking scary.

Leo

problem is that those SUVs do cartwheels when you lose traction and control at that speed.

quote:

ORIGINAL: stomper

quote:

ORIGINAL: brougham1

Hey 420:  I see that you love speed also, had my 81 Fleetwood up to 145km the other day. Backed off because the speedo doesn't go any higher than that and i didn't want to damage the thing or the car. Yeah faster rated tires, now were talking.

not that i want to burst an bubbles, but that is only around 90 mph.
here in SoCa we cruise at that speed every day.

quote:

ORIGINAL: Doctor Leo

143mph, oh that was in my police intersepter Suburban.

Armed bank robbery just started, empty road, I couldn't resist. Was one of the first responding units too. Not that I really did anything but sit in the parking lot with a shotgun looking scary.

Leo

problem is that those SUVs do cartwheels when you lose traction and control at that speed.

 
I use to think the same thing, but I have yet to spin out in it. I do drive in 4x4 a lot on wet roads. I go through tires at about 20,000miles, other guys go through motors at that rate.

quote:

ORIGINAL: Doctor Leo

I use to think the same thing, but I have yet to spin out in it. I do drive in 4x4 a lot on wet roads. I go through tires at about 20,000miles, other guys go through motors at that rate.

well yeah, but none of that applies at 143 mph !

BTW, what kind of tires do you use for the 4x4 ?

If you've got the guts and a lead foot you folks  have a great chance of the monthly or yearly "dumb ass" award on that "other" web site!

quote:

ORIGINAL: hyperion

If you've got the guts and a lead foot you folks  have a great chance of the monthly or yearly "dumb ass" award on that "other" web site!

keep in mind he is a cop chasing bad guys with that Police Interceptor Suburban !

besides, no one here can outdo the screw ups that they do over yonder ...




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quote:

ORIGINAL: hyperion

If you've got the guts and a lead foot you folks  have a great chance of the monthly or yearly "dumb ass" award on that "other" web site!

 
Hey Zin
At least on this site we have a place for it "street and strip"  over there the dumbass awards are on the problems and solutions area.

9C1 Suburbans and Tahoes are not your typical suv. They were built to fill void when the caprice/ impala went away in 1996.

quote:

ORIGINAL: G.A.R.Y.

quote:

ORIGINAL: hyperion

If you've got the guts and a lead foot you folks  have a great chance of the monthly or yearly "dumb ass" award on that "other" web site!

Hey Zin
At least on this site we have a place for it "street and strip"  over there the dumbass awards are on the problems and solutions area.

maybe they need to start a new award? 
how about the   Allante Darwin Award Program Tadpoles - ADAPT ...

Whenever I see "120, 130, and 140" posted I see something posted by someone having had at least one too many bottles of beer who is moving his car that much faster to the "crusher."
(unless they are at Bonneville or a little north of Palmdale.)  "Even there an extra beer helps a lot for top speed." (been there, dunnit.)

I was just curious, how can you take out the governor on the northstar engines ?

I had to test the DTS out and I've had it up to 117 before I scared myself and slowed down. I know it will do every bit of 140...maybe even a little bit more with the performance engine, but I'm trying to enjoy the comfort of the ride and the knowledge that I have the that extra boost there if I need it.

At this time all my Northstar PCM's that I send out run at 154 mph

My 1994 Cadillac Sedan de Ville used the 200-horsepower pushrod 4.9-liter V-8. The 1994 Cadillac Sedan de Ville Concours used the 270-horsepower twincam Northstar 4.6-liter V-8. 1994 Cadillac Sedan de Ville Concours were a pleasant surprise: smooth, quiet, and fully equipped with good car parts.