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A Holley 750 DP will flow enough air to support 700Hp when set up correctly.Anytime I had a 750DP on something and removed it and put an 850DP on it I went quicker. And that was even back in the 70’s on my 11 second street car.
question: were any other parameters changed or only the compression ratio?8.4:1 CR, headers. it made 451 hp. When the carb was swapped for a Holley, it made 463 hp....but lost 13 ft.lbs of tq. When CR was increased to 11.9:1, it made 530 hp.
A Holley 750 DP will flow enough air to support 700Hp when set up correctly.
Air is compressible basically any carb can flow 700hp of air, questions how much hp will it lose to pumping loss.A Holley 750 DP will flow enough air to support 700Hp when set up correctly.
You did say street & track.....
When Pontiac developed the 455 SD engine for a 1973 release date, the block was extensively re-engineered, with provision for dry sump oiling [ among other mods ].
With a tight LSA version of the RA4 cam [ 105 v 113.5 ], production QJ carb, 8.4:1 CR, headers. it made 451 hp. When the carb was swapped for a Holley, it made 463 hp....but lost 13 ft.lbs of tq. When CR was increased to 11.9:1, it made 530 hp.
Interesting how he says the mystified fuel of the annular carb follows the are column better and distributes better. Also says the annular carbs tend to flows 60-65 cfm less but the power is better because of the mystified fuel that's that's easily combustible especially the low to mid range even the top end when the fuel is mystified better. Interesting stuff indeed.
He's obviously using the restriction to aid vaporization and improve combustion.You can get annular boosters that don’t restrict flow.
He's obviously using the restriction to aid vaporization and improve combustion.
Maybe not to you but he's obviously figured it out how to make more power with improved combustion. He also runs 200 psi cylinder pressures in his street engines so he has a good grasp on what happens in the cylinder and how to prevent detonation and pre ignition due to poor mixture quality.That makes zero sense. Just none.
Says the guy posting Darin Morgan vids.........Some of you guys have a video for everything. Lmao. To many video worshiper around here that probably watch a video to learn how to wipe their azz
Says the guy posting Darin Morgan vids.........
That's a shame because Darin would have given you an insight into what was happening with fuel mixture and how that changed his thinking when he saw what it was doing on the wet flow bench.Honestly I’ve never watched one. I shared it for you guys. I’m to old to learn new tricks.
That's a shame because Darin would have given you an insight into what was happening with fuel mixture and how that changed his thinking when he saw what it was doing on the wet flow bench.
This guy is saying the same thing......If you don't want to learn anything new that's fine but maybe some of the other guys do......