BB-GT

To all those guys that have draged heaps can you please give me some info and explain what all the numbers mean.
I had my first drag day on Sunday and just wanted someone to tell me if my car could run faster with a good launch or are the numbers all ok?

I ran R/T .700 60' 2.117 330' 5.842 660' 8.913 mph 81.79 1000' 11.456
ET 13.622 mph 107.36

2nd run R/T .607 60' 2.355 330' 6.140 660' 9.160 mph 82.39 1000' 11.688
ET 13.846 mph 107.59

I don't understand what all these numbers mean? My second run was slower but my mph was faster?

Xtreme F6

K well your Reaction time is obviously just that. A helpful hit is to actually leave on the last yellow not when you see the green.

As for your 60 foot time ect, the first one was obviously alot better then the second and that is showen in your Quater mile time. Your MPH is if you could use the power off the line good for a 12.95. You would prolly never see that without doing slicks ect. Saying that you should be able to do a low 13 if u can get it off the line.

Hope that helps.

galaxy xr8

Don't worry about your reaction time as much, as the qrt mile time is what your after 1stly,your time won't start untill your vehicle move's or break's the beam, once you have run a few time's and learn't how to launch the vehicle proberly to get a good time/mph, then you can learn to fastend your reaction time, just imagine 2 vehicle's lined up on the line, the light's go green and one vehicle leave's the trap's straight away and get's a good reaction time and a (let's say) 13.8 pass, and the other sit's there for 3-4 sec's, ready to launch, does this great and get's a time off (let's say) 13.3, he's still the winner,only his reaction time is shit, so worry about launching 1st, then learn to master the X-mas tree.

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AU II XR8
Herrod mod's,mmmn.
XW Wagon 221-2V,
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Rodderz

The 2.11 60 foot time isnt that bad, what sort of car and tyres are you racing?

The key to all of it is the 60 foot time, stuff the start and you've stuffed the run. Anything under 2secs for the 60' is very good on street tyres and if the rest of the run is good you will be heading towards a very low 13 1/4 mile, you have good mph at the end too.

Something I have experienced is that generally a quick 60 footer makes a better ET (elapsed time) but slower MPH (miles per hour) probably due to getting good grip and lower revs at the start, while a slower 60 foot with a bit of wheelspin will result in a higher mph but slower ET

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BAXR8 Ute 5M- 13.51@106.03
zorst, SS Cai,240rwkw

Cobra

As Rodderz said, it helps when we know what car and tyres you have.

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O.F.R #12
1999 AU XR8
14.594 @ 94.40mph
152.2RWKW (APS dyno)
Switchable Shift Kit, K&N panel filter, Lukey straight thru mufflers, momo gear and steer,
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BB-GT

Hi thanks for the help so far,
My car is 2004 FPV GT The tyres are street tyres Falken Azenis ST115.
The only mods I've done are no rear muffler and a SS cold air intake with BMC filter. On both these runs I did no burnout and had wheelspin for about 5-10 meters. I tried to take off like I would on the street but would always get wheelspin, when on the street the same launch would only get a chirp, I thought the track was suppoosed to be grippier?

bossxr8

Did you drive through the water before the start line, cause if you did and you didn't do a burnout to clean and warm the tyres it would explain the wheelspin.

Rodderz

Try warming up the tyres....start off in 2nd if a manual and let them smoke a bit

You will notice the extra traction as the rubber both on the tyres and the track will be warmer- better grip. Do it too much though and you'll notice the extra wear on the tyres too though

__________________
BAXR8 Ute 5M- 13.51@106.03
zorst, SS Cai,240rwkw