I just ran a 7.91 at my local track (1/8 mile) at 90mph with a 1.8 60ft on street tires. Does anyone have an idea of what this equals in the 1/4?

 

12.41

 

12.33 and at least 112mph. improve your 60' please.

 

how are u guys finding these times? just wondering, and i plan to improve the 60ft (im running stock Torque Converter)

 

multipy the 1/8 et by 1.56.

 

I just ran an 8.065 in the 1/8 and my et was 12.73 for comparison. MPH was 83.96.

 

1/8 x 1.56 is only a close estimate but it's the one I use also. Each car is a little different but that will give you a number close enough as a guess. Some cars will run slightly faster, some slower. It depends on weather conditions and how well the car runs at top end.

 

that 1.56 is pretty damn accurate i ran a 10.000 in the 1/8'th once and quarter came out to a 15.666

 

I ran a 12.31 @ 111.93 mph 1.87 60' and the 1/8th mile was 7.92 @ 88.98 mph.

 

i ran 7.99@85.2 1/8, and a 12.45@108.1 1/4.

 

Here's an equation developed by another board member that uses the 60' time as a correction factor.

1/4 mile ET = 1.7287*(1/8 ET) - 0.7392*(60' time)

 

i like an equation that includes 60',but every timeslip i put into that equation comes up 1 tenth slow.

 

I get the same answer with both formulas.

My 10.546 run comes out to 10.56 with both formulas.

 

The 1/8 mile time * 1.56 is a good one to use.

However, if you are like me and can't floor the car until about 40mph, it means zero. Or if you use nitrous in a higher gear (as opposed to off the line).