Just a quick question guys, Last time I was at the strip my best 60ft was 2.37 sec (crap I know!). My best trap was 116.88mph, If i could get my 60ft down to 2.0/2.1 do you think this would effect my trap speed much??

Thanks.

 

I would like to see 2.0 seconds on street tires. Do not know what this will do to trap speed. but but but assume this will decrease ET by 0.37 seconds.

 

I'd imagine that you may gain a MPH or so with a lower 60ft as you probably will have traction sooner

 

I don't think there is a direct correlation with trap speed and 60' times. Some guys say when you spin off the line you get a higher mph and some guys would argue that a lower 60' time should land a higher mph. My guess is that your MPH will remain the same, provided you are consistent at shifting.
What will definitely improve is your ET. Something like for every .10 in your 60' time expect .15 off your ET.

 

for every tenth in the 60ft u gain 2tenths in the 1/4 mile granted u shift the same on every run, traction in other gears are the same etc..... y r u worried about trap speed? should be on the time elapsed....

 

Some people feel that with a worse 60ft (spinning) that you can trap higher than if you hooked.

Maybe when talking about 150whp Civics where some spin will actually help them from bogging, that's the case, but in my experience with the Z, especially on slicks and with FI, the better the 60ft, the better my trap.

If you can hook up, then you are making more use of the track and putting down the power sooner. This will help you trap higher.

With my TN setup, when I 60ft'd at 1.96 I would trap 114mph. When I hit low 1.8's I would trap 115-116mph, same day, back to back runs/conditions.

On my original Greddy build when I spun like a **** on new slicks and cut a terrible 2.0 60ft I trapped 122mph, when I cut a 1.6 60ft, I trapped 126mph and that was with me letting off slightly.

edit-to answer your question about YOUR trap, well that is tricky, because I know you are already bumping limiter in 4th before crossing the line, so if you hook and have to shift to 5th, it may kill or help your run depending on how fast you shift. I avoid shifting into 5th like the plague, and so should you.

 

i never saw much correlation. I could blow my launch and maybe trap 1-2 mph slower. thats why trap is a good indication of hp. hard launch/soft launch, they only thing that changes alot is your ET.

 

your trap speed wont get higher with a better 60ft time. only your et will show some difference.

more traction = lower mph/faster et

 

+1

Think about it... a slower ET gives you more time to accelerate to a higher trap.

 

A faster ET from a car laying its power down will trap higher than a guy sitting there spinning not accelerating in a Fi VQ platform.

We had a thread like this long ago, myself and IIRC Briguymax agreed, better 60ft, better trap.

Take it for what its worth.

 

I agree with that

 

Disagree. More traction (particularly early) results in greater acceleration (higher resulting trap). I always trapped higher as my 60' dropped. Having more initial traction>than the resulting loss from friction IMO.

 

i agree, when i had a 1.64 60' i trapped 91 in 1/8th
when u had 1.62 60' i trapped 93
my 1/4 mph stayed pretty close to being the same.

 

Theoretically, more traction should yield a higher trap, but that doesn't always happen in the real world.

 

so if that's the case I am going to pour a bunch of oil all over the track next time and see if I can trap 200mph because I'll have more time to accelerate! Awesome.




p.s. you're completely and utterly wrong.

 

All from one night at the 1/4 mile track a few years ago...

2.092=98.45

2.107=97.98

2.129=98.98

2.205=98.39

2.053=98.47

2.077=98.28

 

Looking over some of my times, quicker 60ft usually gives a higher 1/8 mile trap speed.

 

Better 60ft = you're traveling faster at the 60ft mark = you're traveling faster at the 1/4 mark.

 

I'll be sure to use this as an example next time it comes up around me.

 

This does not make sense

I'm no expert but my logic says....you don't have time, you need acceleration because the distance stays the same.

If you took longer, you spent more time not accelerating at full potential. Every split second lost due to traction, slow shifting etc leaves you with less momentum and distance to gain speed in.
So how can you reach a higher speed over the same distance if your car spent less time accelerating at full potential?