Anth? 460 ci, you mean? Ford didn’t make a 454 that I know of. And a Chevy>Ford swap in a Mustang is relatively uncommon. F1 or F100, yeah, but not a Mustang… Also, IIRC, the numbers weren’t so much made up as they were gained from using incorrect testing and measuring techniques.
Gunslinger: Ahh, the Superbird! Dad had one. Had a Road Runner, too, the death of that car is a nice thread story.
As for personal experience, I’ve had a 1988 Escort Pony, and it would get flighty as heck around 90. I’ve also had a 1987 Escort GT with a largish wing (for a car of that size) on the rear, it didn’t get floaty until about 120. IIRC, they had the same IFS and IRS suspension setups, and body style (save decklid).
300 HP USED to be alot, but now when you can get just about any car with a 200-220 HP V6 in it, or most stock V8s putting out 250-300, perhaps we should up it to 400 being defined as a LOT. Heck, I’ve seen an Escort GT just like the one I had hopped up to 350 hp for less than $1500 worth of work. You can buy a Talon TSI AWD or Eclipse GSX that’ll make 300 with a MBC, 320 with a EBC, plus a new downpipe and wastegate. 400 is easy to hit if you upgrade to a 16G.
It’s getting easier and easier to make more and more HP and torque, down lower, with lesser emissions, using today’s CAD and engine design software. Heck, Ford doesn’t use domed pistons anymore because their CAD program showed them that the domes disrupt the burn dynamics of the chamber, increasing emissions.
My 90 Z24 has a luggage rack/spoiler on the back, but I’m looking for a 92-94 totaled Z24 with a good decklid so I can have the ‘real’ spoiler. My 89 Z24 doesn’t even have a luggage rack spoiler, but it’s not up and running yet, so I can’t take it out and test to see if there’s a difference. They both come with a front chin spoiler, and the 89 has a front air splitter too, I’m going to have to put it on the 90 and see if it makes a difference.
A good rule of thumb is that a factory spoiler will provide limited downforce at speed, on a sports car or sports coupe, and they also are somewhat effective for minivans and the like (the lips at the top of the rear hatch). Don’t expect much from those surfboard shaped spoilers they put on the egg Tauruses, though. An aftermarket spoiler is going to provide negative downforce if it provides anything, since it’s not built or designed for the application, so if you see some gaudy three tiered thing on a Civic, he’s hurting himself. And making it easier to laugh at him. Also, even if it is designed right and provides positive downforce, if it’s a FWD car, how helpful is it? FWD cars would ideally have a spoiler on the hood.
Correct me if I’m wrong, please.