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Ron1 · 03-10-2002, 12:16 AM

Why is it that every single professional drag racer use titanium valves, and alum. rods? Why do they use alum driveshafts..or in prostock do they use carbon fiber drive shafts? Why do they use hollow axles...get the weight out. It takes HP to spin a rotating assembly. The less HP required to spin the lighter assembly, the more hp goes to the rear wheels.
Why do big block engines not RPM quickly and small blocks do? It takes more power to move that massive rotating assembly...and it's wasted, not going to the rear wheels.
The theory of a 300 HP 289 at 3000 lbs= 10 lbs per hp, and the 300 HP 460 in a 3000 pound car is still 10 pounds per HP, but boys and girl, measure how fast the engine accelerates to peak HP on the big block vs the small. The small block will kick butt every time on the big block, because it has less rotating mass to accelerate, even though the HP is the same.

Ron

Or to simplify even more...I have 2 cars in my driveway...one is 2000 pounds and one is 3000 pounds...using 72grande as our power source to push both cars, which one to you think he will move first?

03-10-2002, 12:16 AM	#24
Ron1 Registered Member Join Date: Sep 1999 Location: Vancouver, WA USA Posts: 439	Why is it that every single professional drag racer use titanium valves, and alum. rods? Why do they use alum driveshafts..or in prostock do they use carbon fiber drive shafts? Why do they use hollow axles...get the weight out. It takes HP to spin a rotating assembly. The less HP required to spin the lighter assembly, the more hp goes to the rear wheels. Why do big block engines not RPM quickly and small blocks do? It takes more power to move that massive rotating assembly...and it's wasted, not going to the rear wheels. The theory of a 300 HP 289 at 3000 lbs= 10 lbs per hp, and the 300 HP 460 in a 3000 pound car is still 10 pounds per HP, but boys and girl, measure how fast the engine accelerates to peak HP on the big block vs the small. The small block will kick butt every time on the big block, because it has less rotating mass to accelerate, even though the HP is the same. Ron Or to simplify even more...I have 2 cars in my driveway...one is 2000 pounds and one is 3000 pounds...using 72grande as our power source to push both cars, which one to you think he will move first? Last edited by Ron1; 03-10-2002 at 01:28 AM..