Juts_Camaro

Im trying to figure out how important 60' are in total with your 1/4 mile time

I have a good Trap speed of 106.04 but im only getting a 13.498 quarter mile with a 2.1 60'.. Now I was look at other peoples time slips from 60' to 330 - 1/8 mile and I found one that is so close to mine.. but then his end 1/4 is 13.090.. heres the differences.

HIS 60 foot 2.030 330 foot 5.570 1/8 mile 8.460 @ 85.470 1000 foot 10.960 1/4 mile 13.090 @ 106.130 MPH so from what I get from the 2 is that from the 60' made all the difference from every marker. Im just trying to figure out why my Trap speed is decent but my 1/4 mile time is weaker in comparasion. Help me understand this! thx!

matt94z

iTrader: (49)

Ive always been told that every .1 loss in the 60ft means a .15 in the 1/4.

Ben R

60' and 330' mark incremental times are how a chassis setup is measured. They are the most important incrementals on the track.

CAT3

iTrader: (9)

Looks like your both still spinning well after 60', you probably worse then him, thus the difference as well as overall combo, he may have a cam that pulls a lil harder up top or something, but bottom line, you get your 60' under control, suspension and tires, and you have a 12sec car.

black02-z28

iTrader: (8)

60 ft is the key to running well at the drag strip. It is all about acceleration.

Race Car Driver

They are the #1 determinant of ETs.

Villain281H

iTrader: (5)

As mentioned above 60 and 330 foot times are very important to determining how well your car hooks and uses the power/torque it's making in the beginning of the run. I've seen a .2 drop in ET after dropping 60 foot times down by .1, but each car and situation is different. Basically if you have 2 exact runs (engine, trans and rear end temperature, DA outside temp and humidity, wind, etc) but one run you spin by .02 to the 60 foot (say 1.98 compared to 2.00), it will continue to add up in the run to around .04-.07 by the end of the run (13.47 to 13.51). It's the case of once you are at a slower et at one point in the run, it will continue to add up.
You can have a car that is set-up more for top end speed (or lower numerically geared), and thus the trap speed will be higher than the et and/or early incremental numbers will indicate.

I agree that working your 60 foot times down into the 2.0 or high 1.9's could net you a 12 second pass.

Good luck!

Derek

next

iTrader: (9)

Here's a link to an old thread that might help -

https://ls1tech.com/forums/showthrea...highlight=math

Little G

The 60' has been my #1 concentration. Best is a 1.823. I did all my suspension mods before power mods.

smokeum99ta

iTrader: (15)

Thats want I tried explaining to my friend. That you spend 1/3 of your time in the first 1/4 of the track, thats why it important to get good 60'. Thanks for the break down I'm gonna show him that thread.

Shon Herron

iTrader: (25)

the race is won or lost in the first 60' in my opinion.

Getav8

Dont tell that to any Supra guys.

smokeum99ta

iTrader: (15)

Who cares 12.00's @ 135 will will never beat 11.99 @ 119 in the quarter!!!!!