No. A street legal T/A won't hit 200mph without some serious tweaking. Think about this: A typical NASCAR racecar puts out between 600-700 hp. The body is very streamlined. They are using a racing transmission capable of handling all that hp and torque. The tires are special to be able to handle the centrifigal forces at those speeds. Everything about those cars is designed to handle going fast. A 1977 T/A is not. The air pressure alone at 200 would cause the front bumper cover to deform quite a bit which would affect aerodynamics. Most of the street cars capable of doing 200 mph are designed that way from the factory (such as the Ferrari F40) or are a heavily modified version of the original car. Tell the other guy to fork over the cash, he's wrong.
2007-01-15 04:41:50
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answer #1
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answered by Trackerrrr 4
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Sure, I imagine if you geared it real high you could do 200 mph stock. It may take you a couple 3 -5 miles to achieve that speed but why not.
Anyway you said "street legal" not stock. In 1978 the stock 6.6 liter Trans Am came with a 403 cubic inch Oldsmobile motor producing 220 horse power. Although 220 horsepower may seem wimpy compared the the hairy chested Ram Air III's, IV's and and SD-455's, but remember this was power achieved with little valves, low profile cast iron intake's, plain old exhaust manifolds, and the power restrictive catylitic KwikSpecs converter.
There are literally hundreds of performance modifications that could be made to this motor that could easily triple the horsepower and still retain the "street legal" aspect of the ride.
With a good set of headers, high-rise aluminum intake manifold, rejet the carb, higher compression pistons, a better degreed cam, a hotter ignition system, some head and valve train work, and why not throw in a super charger for good measure and 500 - 600 street legal horse is easily attainable.
Even on the low side, 450 horse geared for pure top end speed, she would come off the line like a 1966 VW Beetle but I would bet my paycheck she would hit 200mph....
2007-01-15 04:13:39
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answer #2
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answered by Hawk996 6
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Yes of course it can, you would not need to do any mods but depending on what rear end gear ratio that the car has might make that a bit difficult, most of the the later 70s models came with a 3.23 which is a good gear but to get to 200 the engine would be screaming, you would do better with a 3.08, but you would loose your low end tork that enables you to get to speed faster. The only way to prove to your friend that it will do 200 though is to take a T/A and try it. Just don't kill yourself.
2007-01-15 04:18:05
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answer #3
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answered by Anonymous
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Street legal means that it has all the factory safety features, and is not modified to such an extreme that it is not safe to drive on the road.
With the proper gearing and suspension changes it is quite possible that you could get to 200 MPH in such a car. You would have very slow take off, and it would take a long time to get up to speed, but with the right conditions it would be able to be done.
Top speed is a function of wind resistance vs gearing! With the right rear end and transmission gearing, and a long flat off road surface you can do it!!
2007-01-15 04:57:40
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answer #4
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answered by fire4511 7
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When I was younger my older brother had a 1978 Trans Am. I can not remember the exact engine size... I think it was a 454.
Anyhow I got it out on a straight run on the highway one nice summer day and was up to 140mph and had lots of pedal left. I chickened out and slowed down. I don't know if this car would have done 200mph, but it had a lot left in it at 140.
2007-01-16 07:23:20
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answer #5
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answered by mjwarriorfan 2
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Tops out at 164 mph in 3 miles. at 4 miles might have gone up and down a few MPH. at 6 to 7 miles might start to give out on you without some basic changes...
Engine transmission and rear end need changes then you can work your way up to 200 MPH.
Sounds like Fun. Wear a Helmet.
2007-01-15 10:12:42
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answer #6
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answered by Shattered Moon 3
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It is possible under one condition, that the engine is strong enough internally to produce the compression it would take to do it and still be considered street legal. This is why you see japanese cars so much that can easily hit 200mph and still be street legal. The engines are very tough on the inside and can be "tight" so to speak, which makes it easier to pass emissions and so on. Im not saying you see civic and sentras doing it, but Supra and Skylines, all the time. If you had the money and time to put into it, yea, its possible. But with that much money I would get a real performance car. Not a steel death rocket.
2007-01-15 07:32:31
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answer #7
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answered by sematlock77 1
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The smokey and the bandit trans am was a late model 1977 with a 455 in it. I know it says 6.6 litre on the hood but the car actually had a 455 in it. But, even with that engine, I would have to say no. Not 200. maybe 160.
2007-01-15 04:12:58
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answer #8
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answered by Anonymous
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Just about anything can be made to go 200 MPH with enough modifications and money. The world record for a bicycle is 152 MPH.
2007-01-15 04:16:05
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answer #9
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answered by maxinebootie 6
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With proper gearing and EXACTLY the right conditions, it is possible, but not probable. Mythbusters would likely say it is busted.
The vehicle can be made to go that fast, but the design of the car is such that wind dynamics and road conditions would not allow 200mph in the real world. Bonneville Salt Flats, on a windless day, maybe....
2007-01-15 04:15:07
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answer #10
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answered by J.R. 6
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