How does 60' time relate to MPH?
Thread Starter
Melting Slicks
Joined: Apr 2003
Posts: 2,285
Likes: 16
From: Nashville TN
How does 60' time relate to MPH?
Guys,
Does anyone know how to relate 60' time to MPH at the 60' mark. I want to determine my speed when I cross the 60' light. For example I run 1.6 60's. What speed am I running? I am wondering how soon thereafter I am shifting, because I know that with my gearing I shift from first to second at 44 mph(6600 RPMs). I thought I might be as simple as taking the distance over time in this case 60' / 1.6 seconds and converting the units but that works out to 26 mph and that seems low. There has to be some way to do this, I want to figure out where my shift points are occurring.
Thanks
Chris
Does anyone know how to relate 60' time to MPH at the 60' mark. I want to determine my speed when I cross the 60' light. For example I run 1.6 60's. What speed am I running? I am wondering how soon thereafter I am shifting, because I know that with my gearing I shift from first to second at 44 mph(6600 RPMs). I thought I might be as simple as taking the distance over time in this case 60' / 1.6 seconds and converting the units but that works out to 26 mph and that seems low. There has to be some way to do this, I want to figure out where my shift points are occurring.
Thanks
Chris
Le Mans Master
Joined: Nov 2003
Posts: 8,308
Likes: 157
From: NJ
Guys,
Does anyone know how to relate 60' time to MPH at the 60' mark. I want to determine my speed when I cross the 60' light. For example I run 1.6 60's. What speed am I running? I am wondering how soon thereafter I am shifting, because I know that with my gearing I shift from first to second at 44 mph(6600 RPMs). I thought I might be as simple as taking the distance over time in this case 60' / 1.6 seconds and converting the units but that works out to 26 mph and that seems low. There has to be some way to do this, I want to figure out where my shift points are occurring.
Thanks
Chris
Does anyone know how to relate 60' time to MPH at the 60' mark. I want to determine my speed when I cross the 60' light. For example I run 1.6 60's. What speed am I running? I am wondering how soon thereafter I am shifting, because I know that with my gearing I shift from first to second at 44 mph(6600 RPMs). I thought I might be as simple as taking the distance over time in this case 60' / 1.6 seconds and converting the units but that works out to 26 mph and that seems low. There has to be some way to do this, I want to figure out where my shift points are occurring.
Thanks
Chris
A 1.47 equated to around 2seconds on a logged run.
Thread Starter
Melting Slicks
Joined: Apr 2003
Posts: 2,285
Likes: 16
From: Nashville TN
Thread Starter
Melting Slicks
Joined: Apr 2003
Posts: 2,285
Likes: 16
From: Nashville TN
Found it.
http://www.golenengineservice.com/html/calculators.html
If this is correct for a 1.64 60' the equivalent MPH is 49.8. Which means I am shifting into second before the 60' mark. Can this be correct? If so that explains why I am not 60'ing better.
http://www.golenengineservice.com/html/calculators.html
If this is correct for a 1.64 60' the equivalent MPH is 49.8. Which means I am shifting into second before the 60' mark. Can this be correct? If so that explains why I am not 60'ing better.
Racer
Joined: Feb 2004
Posts: 455
Likes: 11
From: Roanoke VA
I monitor my runs on EFIlive and it computes I attain 60 mph around 2.9 seconds on a good (1.50) 60'.
That means it would take me another 1.5 seconds for 5 more mph.
Race Director
Joined: Mar 2000
Posts: 17,602
Likes: 20
From: Palm City Florida
Guys,
Does anyone know how to relate 60' time to MPH at the 60' mark. I want to determine my speed when I cross the 60' light. For example I run 1.6 60's. What speed am I running? I am wondering how soon thereafter I am shifting, because I know that with my gearing I shift from first to second at 44 mph(6600 RPMs). I thought I might be as simple as taking the distance over time in this case 60' / 1.6 seconds and converting the units but that works out to 26 mph and that seems low. There has to be some way to do this, I want to figure out where my shift points are occurring.
Thanks
Chris
Does anyone know how to relate 60' time to MPH at the 60' mark. I want to determine my speed when I cross the 60' light. For example I run 1.6 60's. What speed am I running? I am wondering how soon thereafter I am shifting, because I know that with my gearing I shift from first to second at 44 mph(6600 RPMs). I thought I might be as simple as taking the distance over time in this case 60' / 1.6 seconds and converting the units but that works out to 26 mph and that seems low. There has to be some way to do this, I want to figure out where my shift points are occurring.
Thanks
Chris
Wow I did the calculator on my 1.7 60" It says 48mph.. But the wierd part is.. I have 4.10 gears.. I run out of RPMs in 1st gear at 47mph...
6500rpm.. I usually shift a bit sooner like 6300.. That means my 60' contains a Shift...
so that means my 60' is not that accurate?
Race Director
Joined: Oct 1999
Posts: 13,298
Likes: 14
From: Somers NY
I can't understand how 60' can relate to MPH in the 1/4 ... Take my car for example, when I had 3.73 rear, and 3500 Vigilante converter my 60' was 1.65 my 1/4 mph was around 109 mph..
Since then after the 3.73 went bad, & I got a good deal on a 3.45 I put in 3.45 and changed my converter to 2800 ... now my 60' is 1.85 but my MPH is still 108 - 109 or in VERY BAD air my mph goes down to 106..
Point being my MPH was almost the same with 60' times of 1.65 or 1.85 There were no other changes than the rear & converter..
**************************************** *************
Forget what I posted above, I misread the original post & thought he was asking the 1/4 mile speed.. not the speed at the 60' clock...
Since then after the 3.73 went bad, & I got a good deal on a 3.45 I put in 3.45 and changed my converter to 2800 ... now my 60' is 1.85 but my MPH is still 108 - 109 or in VERY BAD air my mph goes down to 106..
Point being my MPH was almost the same with 60' times of 1.65 or 1.85 There were no other changes than the rear & converter..
**************************************** *************
Forget what I posted above, I misread the original post & thought he was asking the 1/4 mile speed.. not the speed at the 60' clock...
Last edited by jpee; Dec 1, 2007 at 06:42 PM.
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Le Mans Master
Joined: Mar 2006
Posts: 5,262
Likes: 0
From: E. Amherst NY
Doesn't make much sense to me either. You can have 1000hp, but if you don't start putting it to the ground until 330', the calculation would be flawed. 
Thread Starter
Melting Slicks
Joined: Apr 2003
Posts: 2,285
Likes: 16
From: Nashville TN
Any other thoughts?
Race Director
Joined: Jan 2003
Posts: 15,176
Likes: 87
From: State of Confusion
Cruising
Joined: Aug 2007
Posts: 12
Likes: 0
Guys,
Does anyone know how to relate 60' time to MPH at the 60' mark. I want to determine my speed when I cross the 60' light. For example I run 1.6 60's. What speed am I running? I am wondering how soon thereafter I am shifting, because I know that with my gearing I shift from first to second at 44 mph(6600 RPMs). I thought I might be as simple as taking the distance over time in this case 60' / 1.6 seconds and converting the units but that works out to 26 mph and that seems low. There has to be some way to do this, I want to figure out where my shift points are occurring.
Thanks
Chris
Does anyone know how to relate 60' time to MPH at the 60' mark. I want to determine my speed when I cross the 60' light. For example I run 1.6 60's. What speed am I running? I am wondering how soon thereafter I am shifting, because I know that with my gearing I shift from first to second at 44 mph(6600 RPMs). I thought I might be as simple as taking the distance over time in this case 60' / 1.6 seconds and converting the units but that works out to 26 mph and that seems low. There has to be some way to do this, I want to figure out where my shift points are occurring.
Thanks
Chris
http://www.wallaceracing.com/60-footmph.php
My V6 buick calculates to 55.45
I really like this 1/8 mile calc.
http://www.wallaceracing.com/0-60_equation.php
0-60 IN 2.78 SECONDS
Set this to your favorites
http://www.wallaceracing.com/Calculators.htm
HTH
BW
Le Mans Master
Joined: Nov 2005
Posts: 7,059
Likes: 366
From: Kendall Park NJ
I think you are on to something here. And you data makes more sense. Can you check one of your EFi logs and see what your MPH is at 1.5 seconds? Even though I shift from 1-2 at 44 mph, this must be occurring after the 60' mark, because I don't see me running 1.6 60's with a shift thrown in there. I come near believing my original assumption that a 1.6 60' is equivalent to 25.5 mph.
Any other thoughts?
Any other thoughts?
Thread Starter
Melting Slicks
Joined: Apr 2003
Posts: 2,285
Likes: 16
From: Nashville TN
I tried the Wallace calculators and still get similar results. 1.6 60' = 51 mph. Based on what you guys are saying, maybe this is accurate and I am shifting before the 60' mark. If this is true then I am launching the car for a much better 60', probably in the 1.5 or lower range. I would think that even a really quick shift would take .15 to .2 seconds. Nect season I am going to step up to either a 27" or 28" tire and stretch the gears out a little and elminate this concern.
Thanks for the help guys.
Thanks for the help guys.
Cruising
Joined: Aug 2007
Posts: 12
Likes: 0
If you want, i have a simple HP calc that shows what the car will do if you decide to cut down on weight or add more HP. Seems to work on my 87 turbo buick just fine. PM me your email if you want it.
PS, last month i was in spring hill TN near the saturn plant. I was driving from clarksville to spring hill a few days.
I was driving a badd **** hyundai accent that did 70 up hill and could be passed at will by a fully loaded semi toward clarksville
Just thought i would BS
BW
Racer
Joined: Feb 2004
Posts: 455
Likes: 11
From: Roanoke VA
I think you are on to something here. And your data makes more sense. Can you check one of your EFi logs and see what your MPH is at 1.5 seconds? Even though I shift from 1-2 at 44 mph, this must be occurring after the 60' mark, because I don't see me running 1.6 60's with a shift thrown in there. I come near believing my original assumption that a 1.6 60' is equivalent to 25.5 mph.
Any other thoughts?
Any other thoughts?
1/8 mile run ~ 6.8 et/100 mph ~ 1.51 short time.
60' mph = 45 mph
0 to 60 mph = 2.6 seconds
1 sec = 34mph ~ 2 sec = 52mph ~ 3 sec = 65mph ~ 4 sec = 76mph ~ 5 sec = 85mph ~ 6 sec = 93mph ~ 6.8 sec = 100mph
