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Future Vehicles Modern Muscle with Classic Names
175 messages, Last post on Nov 10, 2008 at 11:35 AM
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| One of my fave bits of the movie is when Bo was trying to get away from Atlanta PD and he drifted the roundabout. He did manage to get away from them in the end (as always!). | |
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Replying to: z28convertible (Feb 26, 2006 7:59 pm)
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i personnally do not like dodges 'new' lineup, because the avenger, looks very similar to the caliber, and the charger is a magnum without the hatch, thats just my 2 censts tho, but i do like the 06 gt stang, but i dislike how ford stuk tht nasty tiny hood scoop onto the o7 gt's, and i looove the new camaro
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Replying to: 4bangeralero (Mar 23, 2007 10:05 pm) It's an options package...Ford brought back the old "California Special" designation. And before it was available, I saw plenty of Mustangs with added aftermarket scoops etc. Funny how despite the fairly common press about buyers liking the new Mustang design because it is less cluttered, style-wise, than the 99-04s, there are apparently enough people out there who *want* the added gingerbread... 
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Replying to: toddbinfla (Feb 21, 2006 7:04 am) Is this possibly true? Or were speedometers WILDLY optimistic back then? That would mean the car is geared for 250 mph in 3rd gear at 6500 rpm. And in 4th gear maybe 350 mph or so? (Was this guy just blowing hot air?)
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Replying to: zr1zora (Mar 09, 2007 8:44 pm) |
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Replying to: joe131 (May 13, 2007 1:26 pm) Well, I think a Mopar with a torqueflite and a 2.76:1 rear would be pulling around 3500 rpm  roughly 100-110 mph. At least, I had a buddy with a '66 Charger 383-4bbl, and it pulled 250075 mph. So extrapolating that out, that would come out to 3333100 mph. But 3rd gear in a 4-speed transmission is going to be a quicker ratio than the 1:1 top gear of a Torqueflite. And a Roadrunner is most likely going to be geared quicker than a 2.76:1! So I'm sure that at 100 it would be running quicker than 3500 rpm, let alone 135! Also, those old Mopar engines, even the hairier big-blocks, tended to get their peak hp around 4800 rpm, and would redline around 5500 or so IIRC. In 1972, the 440 six-pack had something like 285 hp, according to the net rating that became the norm that year. It would've been around 370-380 gross. Still, a '72 Roadrunner with a 440-6pack was one of the fastest domestics around by that time. Ford pretty much gave up on performance by then. About the most power you could get was maybe 224 hp out of a 460, but you'd have to buy a T-bird or Lincoln to do it. I think the cheaper Fords and Mercurys were toned down from that. You could still get a 300 hp Pontiac/Olds 455, or a Buick 455 with around 270 hp. Or a Chevy 454 with 270 hp. There was also a 440 option at Dodge that put out 330 hp! Maybe that was a dual quad, and not a 6-pack?
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Replying to: andre1969 (May 14, 2007 6:42 pm) Or is that manual transmission GTX geared for 250 MPH in 3rd gear and 350 MPH at redline in 4th gear?
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Replying to: joe131 (May 14, 2007 8:12 pm)  Now 4th gear is going to be 1:00:1. Top speed is going to be determined mainly by the axle ratio. I'd imagine that about the hairiest axle ratio you could get by then would be around a 4.11:1. Put some fairly meaty 255/70/R15's on that sucker, which according to www.tirerack.com, turn about 720 revs per mile (also 720 rpm 60 mph, and that means your engine would be revving at about 2960 rpm 60. That engine would probably hit its peak hp around 4800 rpm, which would mean about 97 mph. And it would hit its redline of around 5500 rpm at around 111 mph. Now on the flip side of that, I think you could special order a tall ratio axle of around 2.06:1. When you figure that's about half of a 4.11:1, that means you'd hit peak hp at a theoretical 194 mph, and top out at 222 mph! Of course, it doesn't take into account wind resistance, which is going to be fierce once you get up over 100 mph or so. And IIRC, for every doubling of speed, wind resistance is actually squared? I'd say that with a moderate gear ratio, and in tip-top shape, that '72 GTX might, *might* top out at around 145-150 mph. IIRC, some of the fiercest police cars of all time were 1969 Polaras running 440's and 3.23:1 axles, and that's about what they'd top out at. As for turning 3500 rpm 135 mph in 3rd gear? Well, doing the math, I'd take a wild guess and say that would be a 2.45:1 axle? And again, that's not taking into account aerodynamic drag. And I seriously doubt that anybody would put a 2.45:1 axle in a '72 GTX. And you sure as hell don't want to rev something like that up to 6500 rpm! There are many modern DOHC engines that redline around there...some big monster of a 440 that's better at pulling out stumps and flattening mountains isn't going to want to rev that fast without scattering parts for a wide, wide radius! Maybe that '72 GTX came out of Canada, and had a metric speedo! I know a guy in one of my Mopar clubs with a '66 Fury that came from Canada, and it set up that way. |
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