Wheel HP vs. track performance?
Thansk guys, keep it coming. It's updated again.
Looks like there's a pretty big deviation at about .12 hp/lb or 8.2lb/hp with that low point being 109mph and that high one at 118. Anyway, keep it coming. That trend line equation still says that a 400rwhp 3600lb car should go 115.03. Seems right.
Looks like there's a pretty big deviation at about .12 hp/lb or 8.2lb/hp with that low point being 109mph and that high one at 118. Anyway, keep it coming. That trend line equation still says that a 400rwhp 3600lb car should go 115.03. Seems right.
SOB! Somthings gotta be wrong.. I checked and I have 0 degrees of KR. What am I doing wrong.. I'm power shifting the 1-2 and the 3-4.. On the street I can race a car puttin down the same amount of power as me and be right beside em or pull em by a car.. so somthing is going on just at the track... what else could it be. My clutch has been a POS since I had it installed.. it shakes the whole damn car and makes the torque arm come loose, could it be causing the BS? Thanks for any info!
hrmm.. chart seems flawed??? i plan on being around 800 RWHP with a 2900 lb race weight.. that comes out at a .25 power/weight ratio.... which is a 150 trap speed... :X dont think ill be anywhere near that fast..
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Launching!
Joined: Feb 2005
Posts: 273
Likes: 0
From: Wichita Falls, TX
Originally Posted by LostCauseZ06
hrmm.. chart seems flawed??? i plan on being around 800 RWHP with a 2900 lb race weight.. that comes out at a .25 power/weight ratio.... which is a 150 trap speed... :X dont think ill be anywhere near that fast..
I was actually thinking about graphing some higher end cars. I know a couple guys in Omaha that have made 1100rwhp and go 8.0s @ 170ish. There is definitely something to the law of diminishing returns though, so yeah it will have to lay down, but I think from 100-130mph it should be pretty close. 8000hp fuel car would have to go over 1000mph for my stuff to fit, definitely not right. I may be able to fit a pro-stocker on the curve if I knew some actual info.
LostCause, a friend of mine from Bowling Green KY made just 701 at the wheels in a 3000lb 4-link camaro that's been 9.30s @ 145mph. I don't think it's flawed where you think you are going. Also, think about the 185hp Hyabusas that go 150mph at 750ish pounds (480lbs dry + fuel + 200lb rider and leathers). .25hp/lb = 150mph.
LostCause, a friend of mine from Bowling Green KY made just 701 at the wheels in a 3000lb 4-link camaro that's been 9.30s @ 145mph. I don't think it's flawed where you think you are going. Also, think about the 185hp Hyabusas that go 150mph at 750ish pounds (480lbs dry + fuel + 200lb rider and leathers). .25hp/lb = 150mph.
Originally Posted by NOS327
Thansk guys, keep it coming. It's updated again.
Looks like there's a pretty big deviation at about .12 hp/lb or 8.2lb/hp with that low point being 109mph and that high one at 118. Anyway, keep it coming. That trend line equation still says that a 400rwhp 3600lb car should go 115.03. Seems right.
Looks like there's a pretty big deviation at about .12 hp/lb or 8.2lb/hp with that low point being 109mph and that high one at 118. Anyway, keep it coming. That trend line equation still says that a 400rwhp 3600lb car should go 115.03. Seems right.
you just described my car!
12.18 @ 113.41
Mods in sig.
The car made 364 rwhp on a Dynojet and weighs about 3600 lbs.
Corrected from the nasty DA to 11.64 @ 118.68 using the NHRA correction factors.. for comparsion only.
Mods in sig.
The car made 364 rwhp on a Dynojet and weighs about 3600 lbs.
Corrected from the nasty DA to 11.64 @ 118.68 using the NHRA correction factors.. for comparsion only.
Originally Posted by RyneZ06
approx. 3500 lb vette, 550 rwhp 501 rwtq, 10.85 @ 129.45 DA 2100 ft.
mine weighed in at 3275 on the scale with me in it
Originally Posted by NOS327
..guys in Omaha that have made 1100rwhp and go 8.0s @ 170ish.
Here's a clip of his car. Yeah, it's a mustang, but it sure spanks my azz, so I'll let him in my data pool.
http://inductionweb.com/UndrPrsr2.mpg
Originally Posted by LostCauseZ06
how in the hell is your car that heavy? stereo?? wheels??
mine weighed in at 3275 on the scale with me in it
mine weighed in at 3275 on the scale with me in it
it might weigh less, but thats what i figured.
Originally Posted by RyneZ06
me 220 lbs, stereo around 100 lbs, 5 point roll bar 80 lbs, Iron block around an extra 100 lbs.
it might weigh less, but thats what i figured.
it might weigh less, but thats what i figured.
oh i see
iron block extra 100 lbs??? my entire assembled shortblock with engine shipping stand only weighed 375 lbs.. that is exact weight based on the shipping statement. i dunno how much an aluminum LS1 shortblock weighs?? 
Black8Banger, what does your car weigh? I stuck you in at the usual 3600lbs since you didn't specify and you are by far the most deviant from the trendline. See that one sticking way up at .13HP/lb, that's you. Hopefully (for my graph's sake) that thing weighs somewhere down around 3300lbs. On the other hand, you'd really be putting a hurting on these guys if you went 129.8mph at 3600lbs and only 476whp.