Weight reduction lb/hp
Thread Starter
11 Second Club
Joined: Jan 2010
Posts: 1,707
Likes: 13
From: New Orleans, LA
Weight reduction lb/hp This is some good info thought I'd share http://www.camaro-transam.com/foro/s...ad.php?t=16871
Last edited by NewOrleansLT1; Dec 27, 2012 at 10:55 AM.
You know a well respected member here that I met at the track once, told me he didn't believe weight was really all that big a deal. Probably felt that way because his 600+lbs lighter car was slower in the quarter though.
Thread Starter
11 Second Club
Joined: Jan 2010
Posts: 1,707
Likes: 13
From: New Orleans, LA
Weight is everything. 100 percent reliable. The only thing that sucks is the price for the strut/spindle setups and the light wieght brake packages. My motor is nothing special, just a mild 396 I daily drove in a convertible. In my drag car it runs 9.6@136 my mph is low compared to the heavier cars, but I'm not pushing my motor much.
depends on where its located as well......
if you have a 3200# car at 60/40 and a 2700 lb car at 46/54
These things can get very complex and many rules are not set in stone, lots of variables.
if you have a 3200# car at 60/40 and a 2700 lb car at 46/54
These things can get very complex and many rules are not set in stone, lots of variables.
.Drag racing 101!
Trending Topics
hopefully next year ill be near the actual weight limit for my class was 3275 this year hoping to be at 3175 next year running alot faster
also......not to try to be a dick but the math in that thread does not work correctly.......the weight/hp thing is not linear math due to the weight variable changing.......ie at 3000lbs and 300hp theory in that thread says 10lbs is worth 1hp........well ok pull out 100lbs now your at 2900 and 300hp.......now 1hp is worth 9.6lbs....follow me?
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
also......not to try to be a dick but the math in that thread does not work correctly.......the weight/hp thing is not linear math due to the weight variable changing.......ie at 3000lbs and 300hp theory in that thread says 10lbs is worth 1hp........well ok pull out 100lbs now your at 2900 and 300hp.......now 1hp is worth 9.6lbs....follow me?
Joined: Nov 2001
Posts: 10,023
Likes: 6
From: LT1 land...the "409" of the 90s!
Weight is everything. 100 percent reliable. The only thing that sucks is the price for the strut/spindle setups and the light wieght brake packages. My motor is nothing special, just a mild 396 I daily drove in a convertible. In my drag car it runs 9.6@136 my mph is low compared to the heavier cars, but I'm not pushing my motor much.
i got more mph than that but i cant run that fast 
lol
ehhh......it is when they are running slower down in that 12-14 sec range, the faster you go the less that works....100lbs out of my car is worth about .07 now from what i gander
lolehhh......it is when they are running slower down in that 12-14 sec range, the faster you go the less that works....100lbs out of my car is worth about .07 now from what i gander
i got more mph than that but i cant run that fast lol
I'd love to borrow your motor and see what it would do in my junk.
ehhh......it is when they are running slower down in that 12-14 sec range, the faster you go the less that works....100lbs out of my car is worth about .07 now from what i gander
lolI'd love to borrow your motor and see what it would do in my junk.
ehhh......it is when they are running slower down in that 12-14 sec range, the faster you go the less that works....100lbs out of my car is worth about .07 now from what i gander
The faster your times the more this fall off.
and then within rotating weight the further that weight is from center or the faster it spins matters.
IMO this is where a nice bit of the gains from a good 9.5" converter comes from, they are a lot lighter than a stocker and the weight a lot further from center than something like a driveshaft AND they are spinning faster than the crank at least until locked up in third.
Without going and weighing them let's say a 9.5" converter is 10lbs lighter(I believe this a lowball number) that 10 lbs was also 5"-6" from crank centerline and had to accelerate with the engine in every gear. Think about the amount of energy used to take that 10lbs to go from 2000 to 7000 in a couple seconds or whatever you spend in first gear and then 5000-7000 in each of 2nd and third.
IMO this is where a nice bit of the gains from a good 9.5" converter comes from, they are a lot lighter than a stocker and the weight a lot further from center than something like a driveshaft AND they are spinning faster than the crank at least until locked up in third.
Without going and weighing them let's say a 9.5" converter is 10lbs lighter(I believe this a lowball number) that 10 lbs was also 5"-6" from crank centerline and had to accelerate with the engine in every gear. Think about the amount of energy used to take that 10lbs to go from 2000 to 7000 in a couple seconds or whatever you spend in first gear and then 5000-7000 in each of 2nd and third.