100lb = 10hp?

Scouzer

Lifer
Jun 3, 2001
10,358
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0
I've heard this before.

Thoughts?

Don't rape me, I don't know! :p

Unclear post: I was referring to shaving 100lb off a car's weight gains '10 hp' and adding 100lb loses '10hp'
 

imported_Tick

Diamond Member
Feb 17, 2005
4,682
1
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No. A HP is measured as the ability of a horse to lift a given weight on a cart up a given slope.
 

mugs

Lifer
Apr 29, 2003
48,920
46
91
That sounds overly optimistic

Edit: Obviously you're not talking about an actual change in horsepower, but rather an equivalent gain in performance... I don't think you could simplify it that much.
 

lozina

Lifer
Sep 10, 2001
11,711
8
81
So a 250 lb. man has 25 hit points? doesn't sound like he can take much damage...
 

TheSlamma

Diamond Member
Sep 6, 2005
7,625
5
81
Go down the 1/4 mile in a civic, then put a 100lb sandbag in the back.

Then do the same thing with a F-350 powerstroke.

I don't know how there can be a set weight of lbs = hp
 

Fenixgoon

Lifer
Jun 30, 2003
33,400
13,005
136
HP = power = work/time

lb = weight = measure of gravitational pull

or if you're thinking lb-ft, that's a unit of force (about an axis)
 

Heisenberg

Lifer
Dec 21, 2001
10,621
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The rule of thumb I've always heard is that every 100 lbs lighter you make the car you pick up 0.1 seconds in the 1/4 mile.
 

Howard

Lifer
Oct 14, 1999
47,982
11
81
No. It's possible that at a certain period that relationship would work, but lower weight does nothing for top speed.
 

Mutilator

Diamond Member
Aug 22, 2000
3,513
10
81
Originally posted by: Heisenberg
The rule of thumb I've always heard is that every 100 lbs lighter you make the car you pick up 0.1 seconds in the 1/4 mile.
That's what I've heard too. No way lighter weight would increase horsepower, it would just change the HP:Weight ratio slightly.
 

MikeMike

Lifer
Feb 6, 2000
45,885
66
91
Originally posted by: Mutilator
Originally posted by: Heisenberg
The rule of thumb I've always heard is that every 100 lbs lighter you make the car you pick up 0.1 seconds in the 1/4 mile.
That's what I've heard too. No way lighter weight would increase horsepower, it would just change the HP:Weight ratio slightly.

thats what ive heard, and i know 100hp wont ONLY net you .1s in the 1/4.