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This thing is so cool. I always use it to dream what my car can accomplish. I'm just picking what I want to test.
Power to Weight Ratio
Example:
C7- 3347lbs divided by 460hp=7.27 PWR
Z06- 3524lbs divided by 650hp=5.42 PWR
14 gt500- 3845lbs divided by 663hp=5.79 PWR
14 BMW 650ix- 4650lbs divided by 552hp=8.42 PWR
(BMW AWD = high elevens opps!
Z06 w/ Z07 package - 3484lbs divided by 650 hp = 5.36 PWR
What's cool is if you want to power add as a fastness goal,
you get to keep an eye on the weight of your power modd to TRUE hp gains to bring that PWR down.
This thing is so cool. I always use it to dream what my car can accomplish. I'm just picking what I want to test.
Power to Weight Ratio
Example:
C7- 3347lbs divided by 460hp=7.27 PWR
Z06- 3524lbs divided by 650hp=5.42 PWR
14 gt500- 3845lbs divided by 663hp=5.79 PWR
14 BMW 650ix- 4650lbs divided by 552hp=8.42 PWR
(BMW AWD = high elevens opps!)
What's cool is if you want to power add as a fastness goal,
you get to keep an eye on the weight of your power modd to TRUE hp gains to bring that PWR down.
Z06 w/ Z07 package - 3484lbs divided by 650 hp = 5.36 PWR
This thing is so cool. I always use it to dream what my car can accomplish. I'm just picking what I want to test.
Power to Weight Ratio
Example:
C7- 3347lbs divided by 460hp=7.27 PWR
Z06- 3524lbs divided by 650hp=5.42 PWR
14 gt500- 3845lbs divided by 663hp=5.79 PWR
14 BMW 650ix- 4650lbs divided by 552hp=8.42 PWR
(BMW AWD = high elevens opps!
Z06 w/ Z07 package - 3484lbs divided by 650 hp = 5.36 PWR
What's cool is if you want to power add as a fastness goal,
you get to keep an eye on the weight of your power modd to TRUE hp gains to bring that PWR down.
Weight divided by power = weight to power ratio...
Power divided by weight = power to weight ratio...
If we're posting cool power to weight ratio ...
How about the 2017 Ducati 1299 Superleggera
215hp (chassis dyno number)
368.2 lbs wet curb weight
1hp-1.712lbs
Carbon fiber frame, swing arm, wheels.
Titanium racing exhaust, Titanium bolts
Estimated Price $80k
500 to be built, less then half coming to USA
Weight divided by power = weight to power ratio...
Power divided by weight = power to weight ratio...
Like Hp/lb
Y'know, I was thinking the same thing. I'd always read Power to Weight ratio. But, it always seemed to discus the number of pounds of weight per 1 chp. So, how many pounds was this car per 1 chp, versus another heavier car with a few more chp was the statement.
In which case, I guess 2fast's numbers follow common practice.
Make sure you are using weight with rider/driver and rwhp. On a bike that weighs less than 400 lbs but has a 150-200 lb rider the weight is way more than 400 lbs and the effecton power to weight ratio is enormous because the rider is 33% the weight of the rider and bike combo. It isn't as significant in the car because the driver is less than 5% the weight of the car driver combo. Loss of hp from crank to wheel on a bike should be much less than on a car for a variety of engineering reasons having to do with weight, friction, change of direction of rotation and other things that I am not smart enough to fully understand.
Make sure you are using weight with rider/driver and rwhp. On a bike that weighs less than 400 lbs but has a 150-200 lb rider the weight is way more than 400 lbs and the effecton power to weight ratio is enormous because the rider is 33% the weight of the rider and bike combo. It isn't as significant in the car because the driver is less than 5% the weight of the car driver combo. Loss of hp from crank to wheel on a bike should be much less than on a car for a variety of engineering reasons having to do with weight, friction, change of direction of rotation and other things that I am not smart enough to fully understand.
If we're posting cool power to weight ratio ...
How about the 2017 Ducati 1299 Superleggera
215hp (chassis dyno number)
368.2 lbs wet curb weight
1hp-1.712lbs
Carbon fiber frame, swing arm, wheels.
Titanium racing exhaust, Titanium bolts
Estimated Price $80k
500 to be built, less then half coming to USA
Let's see what my previous bikes were: 07 R1, 08 ZX-10r, 10 S1000rr, and 11 ZX-10r. California super bike school level 4 grad. I know bikes don't have differentials. I was/am talking cars. This is a car message board after all.
Let's see what my previous bikes were: 07 R1, 08 ZX-10r, 10 S1000rr, and 11 ZX-10r. California super bike school level 4 grad. I know bikes don't have differentials. I was/am talking cars. This is a car message board after all.
Ah, you weren't specific, in fact your post followed the motorcycle post. Hard to tell whether this is a car or motorcycle forum at this point judging by the number of motorcycle posts.
I'll play along....lets see what my previous cars were:
1967 Malibu 454/400
1978 Monte Carlo
1980 Malibu
1997 Anniversary Z28 LT4 conversion
2004 CTS-V
2005 CTS-V
2006 300C SRT8 (black)
2006 300C SRT8 (silver) 625rwhp 10.73@128.5mph
2010 CTS-V sedan
2013 ZL1
2012 CTS-V coupe
2016 Z06 SC757
I know bikes aren't cars. Solo qualified blue/white group VIR HPDE, 5,000 miles logged.
As for 4.65lbs/hp won't get you much......it gets you over 200mph at Mojave.
12-02-2016, 06:42 PM
Power to weight ratio...a way of life
