LT1driver

how do you do this, what is a 7.90?? :confused:

PRNDL

There are forumulas, which I don't know... They obviously assume that you keep accelerating past the 1/8th mile mark. I like to calculate a "lower boundary" which is how fast you would cover the second 1/8th of a mile if you simply maintained your speed you were going at the end of the first 1/8th mile.... so what was your speed? If you were going 90mph, and remained at 90, you would cover 1/8th in 5 seconds flat... If you were going 100 mph, you would cover the 1/8 mile in 4.5 secs... Nobody else looks at it that way, so don't worry about it! :lol: MJ

tnt76vette

Try smokemup.com. They MIGHT be able to help.........

69 N.O.X. RATT

1/8th X 1.54 is pretty close with a properly set up car

QuickVet

7.9s are very low 12s :yesnod:

Tom73

But cars that run the 1/8th are set up VERY differently then cars that run the quarter.

bhmyers

How are they setup differently, Im just curious?

77-C3 & 89-C4

Why? They are as different as apples and oranges. No relationship

Tom73

Basically it is the gearing. When you set up a drag car you want to be at the redline in high gear as you cross the finish line. With a car set up for running the 1/8th mile you will be at redline/high gear at the 1/8th mark, then to go on for the quarter you will keep running flat out and not increasing speed for another 4 to 5 seconds to cover the second 1/8th mile. Hope the engine can hold together that long at max rpm's. A car set up for the quarter is geared to be at the redline in high gear at the 1/4 mile mark. To do this it is giving up performance in the first 1/8th mile to enable it to run the second 1/8th mile.

The above is only looking at the gearing. The suspension set up and line launch is much more important on the 1/8th then the quarter so the setup will be different there. So you are looking at two very different set ups.

tom...

DJ Dep

Race at a 1/4 mile track :smash: :smash: :smash:
ROFL! Couldn't resist!

Dep




[Modified by Dep, 8:14 AM 9/29/2003]

69 N.O.X. RATT

They are certainly not apples and oranges. Unless you are a pro they are set up almost identical except the 1/4 guys use one more gear. Most sportsman guys run both the 1/8th and the 1/4 with the same car. In my car I have it set up to be at max rpms in 3rd at the 1/8th and max rpms in 4tht at the 1/4.

If you are able to get the car down the track without terrible traction issues 1.54 to 1.57 times your 1/8th times is pretty accurate.

Chevyguy

http://www.geocities.com/allstangs/Page.htm

DJ Dep

Of course, the initial question begs the "why race at an 1/8th mile track AT ALL" reply???
The only answer I can think of is there is no 1/4 mile track to race at.

Sorta like guys that post their times at 60 feet. Who friggin cares? The time at the END of the 1/4 mile is the one that counts. Everything else is just mental masturbation (mind games).

Dep