Power to Weight Ratio

I had Buckshot weighed at the Nats.

1900 pounds with perfect 50/50 front to back distribution.

Then I got to thinking about the power to weight ratio.

The flatty should be pumping out a conservative 115 HP ???.

HP divided by weight, 115/1900 = .061 HP per pound.

Now this is not a stellar number, but is actually about the same as a base 06 Mustang, or a BMW 3 series sedan. For these cars....

HP divided by weight, 210/3345 = .062 HP per pound.

But let's go to the other side of the spectrum.

1970 Hemi Challenger 425/3154 = .135 HP per pound.

OR

2006 Corvette Z06 505/3130 = .161 HP per pound.


Care to share your numbers????

Rich

 

my fat ford weighs 3500 lbs with me in it - it dynoed at 238 RWHP - so .068- it ran high 13's

 

Sometimes it's easier to go the other way with the numbers. Do Lbs/hp..

16.5 lbs/hp for your Buckshot. 15.92 for the Mustang/BMW

7.42 for the Hemi

and 6.2 lbs per hp for the vet. Whole numbers are easier to comprehend.

 

406/3095

Gettin ready to work on one that the specs say weighs 3095 (curb wieght) haven't weighed it but the stock mill will weigh more by a couple of pounds than what we're thinking of putting in it.

The motor dynoed @ 406 that works out to .131 per pound.

That's approx because like I said 3095 is the advertised curb weight and the ride hasn't been weighed.

 

I'm aiming for 350 and 2400 lbs. That would be 6.86 lbs/hp or .145. I'm goin' HEMI huntin'!

 

Diggin' through the memory banks, but I think the usual quote is pounds per horsepower.

 

Never done the numbers but have always known that sprint cars have the largets power to weight ratio.....
830HP 1097lbs = 0.756

 

Well, my Caddy flathead weighs about 875 pounds and puts out 150 HP. That equals 5.83 pound per HP......now if I can only find a Zero weight ch***is and cab.....

 

anybody have an idea what my '37 Pontiac coupe will weigh with my 390HP 428 Pontiac in it?

 

Injun, my 38 Chevy (2 dr sedan, but close enough) with a iron BBC weighs 3200.

For what it's worth, my engine was about 450 hp in my old drag Camaro, but with smaller carb and more restrictive exhaust i am probably down to 425 hp.

 

Mine is 2190 and mild 327 Guessing 300 or so .136

 

Correct ...

My Roadster weighs 2240 pounds with 388 Horsepower at the rear wheels ... ( dyno ) so I am at 5.7 pounds per horsepower ...

 

I'll be conservative and say my A sedan weighs 2800 lbs... and the 460 thats in it....conservatively 550 horse...so 5.09, or .196 which ever way you wanna look at it.

 

My roadster weighs 2400# with 400 HP at the engine.
6.0# per horsepower.
Weighed on NHRA scales which ain't the most accurate ones in the world.

The weight includes a couple of small tool boxes, jack, extra stuff in the trunk and ready for runnin' on the street.
The top and four point roll bar add maybe 100 - 125#.

It's interesting to compare the pounds per HP of your car to a Harley or Ninja style bike.

The 31 on 32 rails project will probably come in at 460 HP and 2200#.
4.8# per horsepower.
To top it off, the 31 is running skinny rear tires....

 

Well, it's not a street rod but 480" BBC at 920hp, car weight 2000 (cl*** minimum) so 2.17lb per horsepower. (It's that thing in the little photo over to the left)

 

I dont know what the number is, but it ain't enough! it's never enough

 

38.2 Lb/HP or .026

 

my caddy weigt was 4800lbs and that olds 260 had to have 110 horses so thats .0229 wasn't quick but drove just fine.

 

Those numbers are cool, but if ya don't put it on the strip, it don't mean ****. ( I beat a guy that beat a guy that ran....Fill in the #) You guys that drag race know what I mean!!!..........OLDBEET

 

my t speedster is shakin the earth with 0.045 (1100 lbs and 50hp)

 

Well,1929 Model A Roadster Pickup, 1829lbs, 512cid caddy, 480hp, 610ft/lbs torque. 3.81 lbs per hp or 0.262 hp per lbs. What ever that does for ya !!! For me all it does is spin da tires and frighten people.