60 foot times and estimate 0-60mph times
02-13-2002, 10:13 PM
#1
Launching!
Thread Starter
Join Date: Nov 2001
Location: Round Rock Texas
Posts: 287
Likes: 0
Received 0 Likes
on
0 Posts
60 foot times and estimate 0-60mph times What mph do you think a 1.6 60 foot time will give you at the 60ft mark? I know our cars have are rated around 4.9 seconds stock on street tires. That puts our cars around the 1/16 mile point of the track. Is there a way we can at least use out 60ft times, 1/8 times with MPH to calculate our 0-60mph times? Or has anyone already figured this out?
Thanks
Thanks
02-13-2002, 10:21 PM
#2
Wheels up Director
iTrader: (11)
Join Date: Nov 2001
Location: Mantua, NJ
Posts: 886
Likes: 0
Received 0 Likes
on
0 Posts
Re: 60 foot times and estimate 0-60mph times Here's a cool little calculator I found a while ago, don't know how good it is but it you give you somewhat of an idea
http://www.prestage.com/carmath/calc_60.asp
LAter <img src="gr_grin.gif" border="0">
http://www.prestage.com/carmath/calc_60.asp
LAter <img src="gr_grin.gif" border="0">
02-13-2002, 10:34 PM
#3
TECH Fanatic
Join Date: Nov 2001
Location: Freeland, MD
Posts: 1,347
Likes: 0
Received 0 Likes
on
0 Posts
Re: 60 foot times and estimate 0-60mph times 
02-14-2002, 01:37 PM
#5
TECH Fanatic
Join Date: Nov 2001
Location: Freeland, MD
Posts: 1,347
Likes: 0
Received 0 Likes
on
0 Posts
Re: 60 foot times and estimate 0-60mph times [quote]Originally posted by Kevin Winstead:
<strong>Desktop Dragstrip has the 60' mph listed. Just to punch in some numbers, I punched in my best drag radial pass (see sig.) With a 1.50 sixty foot, it predicted a 2.69 0-60 mph. The 60 foot mph was predicted to be 44. Quarter mile was predicted to be 10.58.
Weatherguy, I think your mathematics are correct, but I don't think you can assume a constant rate of acceleration. The beginning of that run was 1.75 Gs, at the end of 60' it was around .8 Gs.
Kevin</strong><hr></blockquote>
You know, that might be entirely right. Which is why I posted this because I wanted to get some idea if I was in the right ballpark or not.
What does it assume, if anything, for an acceleration curve? I think this controls everything. Also, was that desktop dragstrip assuming a torque convertor, gearing, etc.?
Probably the only way to get the best handle on this is to hook up that annoying "third wheel" that some of the car mags use. I would love to see what that acceleration curve looks like.
<strong>Desktop Dragstrip has the 60' mph listed. Just to punch in some numbers, I punched in my best drag radial pass (see sig.) With a 1.50 sixty foot, it predicted a 2.69 0-60 mph. The 60 foot mph was predicted to be 44. Quarter mile was predicted to be 10.58.
Weatherguy, I think your mathematics are correct, but I don't think you can assume a constant rate of acceleration. The beginning of that run was 1.75 Gs, at the end of 60' it was around .8 Gs.
Kevin</strong><hr></blockquote>
You know, that might be entirely right. Which is why I posted this because I wanted to get some idea if I was in the right ballpark or not.
What does it assume, if anything, for an acceleration curve? I think this controls everything. Also, was that desktop dragstrip assuming a torque convertor, gearing, etc.?
Probably the only way to get the best handle on this is to hook up that annoying "third wheel" that some of the car mags use. I would love to see what that acceleration curve looks like.
02-15-2002, 12:51 AM
#6
FormerVendor
Join Date: Feb 2002
Location: Falkner, MS
Posts: 430
Likes: 0
Received 0 Likes
on
0 Posts
Re: 60 foot times and estimate 0-60mph times Desktop Dragstrip has the 60' mph listed. Just to punch in some numbers, I punched in my best drag radial pass (see sig.) With a 1.50 sixty foot, it predicted a 2.69 0-60 mph. The 60 foot mph was predicted to be 44. Quarter mile was predicted to be 10.58.
Weatherguy, I think your mathematics are correct, but I don't think you can assume a constant rate of acceleration. The beginning of that run was 1.75 Gs, at the end of 60' it was around .8 Gs.
Kevin
Weatherguy, I think your mathematics are correct, but I don't think you can assume a constant rate of acceleration. The beginning of that run was 1.75 Gs, at the end of 60' it was around .8 Gs.
Kevin
02-15-2002, 09:31 AM
#7
FormerVendor
Join Date: Feb 2002
Location: Falkner, MS
Posts: 430
Likes: 0
Received 0 Likes
on
0 Posts
Re: 60 foot times and estimate 0-60mph times Weatherguy,
Back in college we had to write a program which calculated ET and MPH through the quarter. This was based on engine hp and torque curves, vehicle weight, aerodynamics, trans and rear gearing etc. I don't recall exactly how the acc. curve was determined, but I do recall that it was an iterative process. Check out this acc. curve from the Desktop Dragstrip.
Desktop Dragstrip
Back in college we had to write a program which calculated ET and MPH through the quarter. This was based on engine hp and torque curves, vehicle weight, aerodynamics, trans and rear gearing etc. I don't recall exactly how the acc. curve was determined, but I do recall that it was an iterative process. Check out this acc. curve from the Desktop Dragstrip.
Desktop Dragstrip
