View Single Post
nippy nippy is offline
Registered User
 
nippy's Avatar
 
Join Date: Jun 2010
Posts: 1,498
Garage
So a buddy of mine just got the Ferrari 812 Superfast. He has all the toys including a Carrera GT and GT2RS. Anyway, it got me thinking about power to weight ratio. I looked his Ferrari 812 up on google for specs and it says the car has 788HP/529 lb-ft TQ. It weighs 3593 lbs. Am I correct in dividing the weight by the HP/Tq.? 3593 lbs. divided by 788 HP is 4.56. So that's 4.56 HP per pound correct?

So it got me thinking about my latest blue car. My first black lightweight 911SC track car (with sunroof) but on a diet ended up at 2319 lbs. The current Miami blue car in this thread was built the same EXACT way with the same parts, however we deleted the sunroof and it has a few more lightweight goodies. However its a wide body with larger wheels and tires. (my black car had Fikse 17x8/9s) (my blue car has Fikse 17x9/11s). So lets say my blue car for fun is heavier at 2400lbs. I think its gonna come in lighter then 2400, but lets call it 2400lbs for fun. The new motor set up by Mike Bruns made 375HP/300TQ. So 2400 lbs divided by 375 is 6.4HP per lb.

What the hell? Does that mean its potentially faster?? It cant be right? His car has more then twice the HP then my car.The torque on my motor is right at 300 lb-ft. The 812 Ferrari has 529 lb-ft.

So If I divide the weight by torque I get for the Ferrari 6.79 lb-ft per pound. For my car at 2400 lbs. divided by 300TQ, I get 8 lb-ft per pound. Is this possible? Im terrible at math and calculations but just a fun thought.

Ferrari 812 3593 lbs. (4.56HP per lb and 6.79 tq. per lb)
Porsche 911SC lightweight 2400 lbs estimated (6.4HP per lb and 8 lb-ft per lb)

Sound right?







__________________
82 911 Wide body/Miami blue/Mike Bruns built 3.6
80 911SC Black/tan (sold)
87 930 Turbo 505 slant GP white/black (sold)
95 993 C2 GP white/tan (sold)
82 911SC Hot Rod lightweight Black/black (sold)

Last edited by nippy; 04-08-2019 at 03:09 PM..
Old 04-08-2019, 02:46 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #757 (permalink)