I have only done about 180KM/h (estimated, spedo pegged at 140 plus did another 1000RPM). I was at 4500RPM in 4th gear on my Quad 4/Getrac 5 speed combo. It was night time, and the road turned into gravel.

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84 Fiero Sport Coupe #1192 :: 86 Fiero Base Coupe Quad 4 :: 84 Chevette CS 4 Door

quote Originally posted by badger: Try going north-south, Jake_Dragon. The problem is you're running out of state before you can get past 70.

I think I will run out of gas going that way

quote Originally posted by Tinton: Aaron, top speed is also limited by gearing. Unless you have a VERY tall final gear in a Fiero you'll be held back. Without wind resistance my '86 Fiero 4-speed would still be limited by gearing, it wouldn't be able to go beyond redline in 4th gear, which is at 154 mph. However, in my Camaro because of the last gear being so tall compared to the 4th gear in the Fiero, it'd stop at around 215. But, yes, you are somewhat correct because with no wind resistance you could put the tallest gearing you could to fit the engine and it'd hit 300+ mph. But what I'm saying is that on slower cars like the Fiero, calculating gear ratios can give a ballpark figure for top speed. 134 mph isn't that far off from 125 mph, which is what some people have hit. On faster cars like the Camaro, because of the increase of air resistance at higher speeds, it can't really be used because it gives a figure not even close to realistic top speed. In my 4-speed Camaro with no wind resistance my top speed (5400 rpms'ish) is around 190 mph. That's not even close to the real top speed of around 160-170 mph without the speed limiter. So, the only real way to get your top speed is to test it in the real world, and I know I don't want to lose my license for doing 155 mph (speed limiter) on the interstate.

That is my exact point, you have no idea of your true top speed if you havn't done it. There is not a stock production car on this planet that will redline its top gear. Not a VW, not a Z06, not a Bugatti Veyron.

If you disregard wind resistance, then there is no top speed. Just put bigger tires on it all day long and go indefinate MPH. The only force acting against you is the gravitational friction, and that is negligable for 4 tire patches.

quote Originally posted by Steven Snyder: Then how did you get to 5400 without hitting the 5000 rpm rev limiter? My top speed with the 3.4 DOHC 5 speed is 110. I won't take it any faster because it just rained. Not to mention my tires arent rated for it :-)

Good question, i have often wondered that myself, but many time especially in first and second gear i have excceded 5000 rpm

quote Originally posted by AaronZ34: That is my exact point, you have no idea of your true top speed if you haven't done it. There is not a stock production car on this planet that will red line its top gear. Not a VW, not a Z06, not a Bugatti Veyron.

Aaron I think you are even more of a brainless twit than I previously thought.

There are countless cars and even more so, trucks that were built with deep "drag or towing" gears. That can max out there gears before they run out of speed. One I know especially was a buddies dodge coronet. I don't know the specs on it, but it was a BB motor and a 3spd auto. It would pull to red line in top gear. 0-100mph he would eat my V6 Fiero for lunch, but given a long enough stretch on the highway I would eventually catch him and pass him.

Trucks of the 70s and 80's before overdrive tranny's were used would commonly come with 4.x gears in the back. They would simply run out of gear if you took them out on the highway.

[This message has been edited by Capt Fiero (edited 01-03-2006).]

quote ryan.hess:Nope, that definately looks like a "M"PH..

And that definately looks like the needle is below zero.

If you think that installing 195 mph face plate on your speedo will make your car be able to go that fast, I have some vinyl stickers I'm sure you'd be interested in if you have not already placed some on the exterior of your car.

[This message has been edited by 30+mpg (edited 05-07-2006).]

quote Originally posted by 30+mpg: Where's the odometer?

Isn't it in the little box above the speedo? I have a 180mph speedometer in my car, you mean I can't go 180?? Damn... Thought I had that figured out. lol Seriously though, was up to 130mph before getting to some traffic. Without a hood vent, the air pressure up there does do some fun stuff to the front end...

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Bob Williams
Multi-colored '86 Mutt, a work in progress! (3800SC running great! Fixed the bent roof, now I need an intercooler! Yeehaa!)

stock 86 GT auto-well past 120 mph. Same car with 4.9 and 4t60 was clocked at 134 mph. I have only had it to 115. I added the chin spoiler and the car doesn't get light at over 100.Some may disagree but it is a fact.

quote Originally posted by Capt Fiero: Aaron I think you are even more of a brainless twit than I previously thought. There are countless cars and even more so, trucks that were built with deep "drag or towing" gears. That can max out there gears before they run out of speed. One I know especially was a buddies dodge coronet. I don't know the specs on it, but it was a BB motor and a 3spd auto. It would pull to red line in top gear. 0-100mph he would eat my V6 Fiero for lunch, but given a long enough stretch on the highway I would eventually catch him and pass him. Trucks of the 70s and 80's before overdrive tranny's were used would commonly come with 4.x gears in the back. They would simply run out of gear if you took them out on the highway.

I have hit redline in top gear, in my 84 2.5L Fiero, I was doing 160KM/h, or about 100MPH.

130mph with a 3.2 with a comp cams h260 and it only took about a 1/2 mile.

Well when I was going one of my cross country trips coming back to California and went thru that Salt Lake area where its flat and clear as far as you can see. I had the speedometer pinned at 120mph and it felt like it was still pulling. The interesting part was that it was not difficult to control at all. Maybe it was just a good day for doing it. I had taken some short video clips with my digital camera, holding the camera in one hand and holding the wheel straight with the other. What was scary was when I passed a cop who was on the opposite side of the highway (there was some barrier,grass,ditch whatever stopping him from crossing over easily, but I soooooooo thought he would call someone in ahead of me. thankfully he didn't

Now that my yellow car has the 3.4 I need a speedometer that goes higher LOL.

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http://www.fieroracing.com

quote Originally posted by Capt Fiero: Aaron I think you are even more of a brainless twit than I previously thought. There are countless cars and even more so, trucks that were built with deep "drag or towing" gears. That can max out there gears before they run out of speed. One I know especially was a buddies dodge coronet. I don't know the specs on it, but it was a BB motor and a 3spd auto. It would pull to red line in top gear. 0-100mph he would eat my V6 Fiero for lunch, but given a long enough stretch on the highway I would eventually catch him and pass him. Trucks of the 70s and 80's before overdrive tranny's were used would commonly come with 4.x gears in the back. They would simply run out of gear if you took them out on the highway.

It is real mature of you to attack me personally because I simply disagreed with you and started a technical debate. Unfortunately so many other members on this board get away with this, despite it being clearly against the set rules, and are still here. Yet I debate using accurate technical theory, and I rack up the negs. People simply can't stand to have others disagree and must resort to personal attacks. I'm sorry, but I will not return that favor, because as much as I enjoy debating and learning, I do not feel the need to insult the other person.

If you didn't get the drift, I intended that to mean modern day vehicles. Of course the older trucks with the 3-on-the-tree trannies could do it. Powerful small blocks, the first gear being a granny gear (Where you actually start in 2nd), there is no arguing that. I am talking, for the sake of argument, newer than 1990, where highway speeds of 75mph were not uncommon, high speed mileage was important, and the 4-5-6-7 speed auto trannies got to be popular.

Peg 120 MPH speedometer, a few RPMs left. Jasper 2.8 with performance cam, 4-speed.

quote Originally posted by jscott1: 6-Speed?? What transmission?

I made that plot with the Pontiac G6 stock transmission (F40). From the research that I made I don't really have much to gain from this transmission besides lower cruising RPM and added strength.