quarter mile time?

[jack4954]

Can anyone give me a guess on what I would convert an 1/8 mile time and mph to a 1/4 run? On my other GN I ran a 7.89 and 88 mph. This was all stock w/ your basic add on's and running 18 lbs of boost.

Thanks & Blessings,
Jack

 

[turbojimmy]

According to my not-so-big database of my own runs looks like mid-high 12s.

See here:
http://www.turbojimmy.com/drgrace.html

Jim

 

[PJ LeBlanc]

ET Times

Take your 1/8 (7.89) x 1.57 = 12.39 after rounding, thats about as close as you can get to the 1/4 ET.

 

[justabuickv6]

or

1/8 ET +.22 /.655

7.89 +. 22 = 8.11 / .655 = 12.38ET

The x 1.57 is easier to remember. I'll start using that one.

 

[TurboShane]

Using that formula all my 1/4 times are .2-.4 to slow. My 1/8 mile times suck must be my 60 foot times that suck.

 

[$1987 GN$]

1/8 to 1/4 conversion chart

Here you go this should help.
Click on the link.
1/8 to 1/4 conversion chart

AJ

 

[ghall]

Yeah----i had the just about the exact situation last thursday.

In the 1/4--it was 12.31@108

Geoff