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1/8 mile conversion tables.
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Posted by: 99FRC

The track was running 1/8 mile last night

But I managed my best run, does anyone know of conversion tables for 1/8th to 1/4 times?

Posted by: EvilLS1

Well no one conversion will be accurate for all cars since some launch harder than others and some pull harder on the big end.. But this will put you in the ballpark:

1/8 mile ET X 1.565 = 1/4 Mile ET
1/8 MPH X 1.25 = 1/4 MPH

Posted by: 99FRC

Thanks, My Corvette launches easy, but then runs out the back door, so my main goal has been the first part of the run. I managed three 1.95 60' runs, but due to rain the track was shortened to 1/8 mile

, so I am curious about the theoretical results.

Posted by: EvilLS1

What did it run in the 1/8?

Posted by: 99FRC

8.481@86.6mph... 60' of 2.1x

Posted by: EvilLS1

C5s pull pretty hard on the big end so I'd guesstimate 13.0-13.1 in the 1/4.

Posted by: 99FRC

Thanks for the input Evil. I have pulled 20 time slips (all 1/4 mile runs) and divided the 1/4ET by the 1/8ET and developed an average for me. The ET average is 1.529, I rounded to 1.53. I believe that with this should be fairly accurate. Thoughts anyone?

I have a 13.1 slip that reads
2.134---60'
5.720 ---330'
8.059---594'
8.581---1/8 ET
86.19---1/8 MPH
13.112---1/4 ET
108.39---1/4 MPH

So you are correct the C5 does pull at the end.

Posted by: VETTKLR

Yeah, I have a thought...

That C-5's a fast sumbitch!!!

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