Blue 72 Posted January 20 Posted January 20 Mine is a stock 72 with the 175 net hp four barrel, the TH350 that I presume all the small blocks came with, and a 2.73 positraction highway rear. Bench with column and no vinyl top. It is pretty close to completely stock, by which I mean my grandfather machined some air holes in the air cleaner for more flow, and put a Corvette specced distributor weights and springs kit in it. 88k original miles. I run the oem steel rims and have, I believe, 225/75/15 radial BFGs on it. It has never been down a drag strip in its life and may never will. I have a beef with my friend that her '84 Olds H/O powered by the rather unimpressive Olds 307 and a 200r4 and a respectable rear about which of these two cars would quarter mile the fastest. I am of the opinion that a BBC Monte would beat it handily, the SBC with a reasonable rear would do a good race, but my highway gear would probably put me in the 17s to her 15s. I have no intentions of modifying this car at all as it's been with me a long time, and I have other old cars with several hundred more horsepower to hoon around in, but I wanted the opinion of the experts to tell me "yeah, she's right, you'd lose." 1 Quote
Blue 72 Posted January 20 Author Posted January 20 Picture for your entertainment of car under discussion. 8 Quote
DragCat Posted January 21 Posted January 21 Since nobody responded, I'll give you some thoughts. I'm sure the manufacturers or old magazines ( hot rod car craft etc) have done some kind of documentation for factory performance. If you know the horsepower then you can use the below link for your answers Since you said you'll probably never see a track, if you find an empty stitch of road 1/8 or 1/4 time yourself. 1320 divided by MPH = 1/4 ET, 660 divided by MPH = 1/8. I do not condone this activity and will NOT be responsible for tickets, seizures, or any other legal action 🤣 But in reality, there is only 1 true way to prove or disprove your discussion. Go to the track . Since you're not in a controlled environment the "factory" numbers don't matter. Cold crisp days car will run faster, hot humid slower. My old Yukon XL (yea it's shaped like a brick) ran 15.1 quarter mile at Bristol in the summer, in April in the 1/8 people thought I had a chip or some other upgrades. https://robrobinette.com/et.htm 1 Quote
Scott S. Posted January 22 Posted January 22 It's all in the gearing and torque converter..... Even though the Olds/Pontiac 307 wasn't much of a powerhouse, the deep first gear and 2400 rpm stall in the 200R4 made up for that. There isn't much difference between the two regarding weight or wheelbase, so getting your RPM's to the ground makes all the difference. If I remember right, they too came with a 3.42 rear gear. And don't forget that the cam in the H.O. helps the Hurst breathe a lot better as well. As for a 454 Monte....... Well the torque alone speaks for itself. 1 Quote
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