NSX2NV

I finally took the 55 to the 1/4 mile track this past Friday. I'm fully stock except for sprint booster and K&N drop in filters. The first run I let off before the finish line cause I didn't know where it was. The second run I laid on the throttle to much off the line and got sideways, let off for a second to get traction, and then got back on it. For people that know how to read the times and trap speed let me know what time I could be running if I got a good run in.

1st Run
Reaction 1.3833
60 ft 1.9084
330 ft 5.2817
1/8 et 8.0498
1/8 mph 88.81
1000 et 10.4267
1000 mph 102.74
1/4 et 12.3357
1/4 mph 103.93 Let off to soon

2nd Run
Reaction 1.1750
60 ft 2.3225
330 ft 5.8459
1/8 et 8.6564
1/8 mph 87.28
1000 et 11.0705
1000 mph 101.28
1/4 et 12.9664
1/4 mph 112.14

Going to go again this Friday, any bets on what I might get

NXtremeJeep

You sure have a fast E55 once you learn to drive it. On your first run, you probably would've broke into the 11's if you didn't let off too early. On the second run, you lost a bunch of time in your ET because of the bad launch completely. Sounds like you have a very healthy E55 though.

How did you launch?

My first time ever with the E, I had ESP off and went completely sideways just after the launch and ran a 13.8.

NSX2NV

I had it in comfort mode with the car raised. The transmission was in Sport. The rear tires were at 21psi. Did a 2 second burnout. I got to the stage lights and held the brake and gave it a little gas to bring the rpms to about 12-1300. Once the light turned green I let off the brake and rolled onto the throttle taking about 1/2 second to get to full throttle and just held on. I really wish I didn't let off Looking at the time differences between the runs and mph what do you think I could have got? Does anybody know what the fastest 1/4 with a stock E55 is? I was racing my two friends that have 04' E55's and the fastest they ran that night was mid 13's and they don't have Pano roofs like I do.

TMC M5

I respectfully diagree. Let's look at both runs...in the 2nd run he has a pick up of about 11mph from 1000' to the end of the 1/4 mile. Now look at the 1000' time and mph in the 1st run. He is running 10.4267 @ 102.74mph through 1000'. For argument sakes lets say he would have hit 118mph (a huge15.26mph increase from the 1000' trap) had he not lifted off. Lets now say that he AVERAGED 118mph over the entire remaining 320ft (1320' less 1000'). That would equate to 173.0667ft per second. So it would take a car, travelling a constant 118mph, 1.849 seconds (320'/173.0667ft/s) to cover that ground. The 1.849s + the 10.4267seconds to the 1000' mark would equal a 1/4 mile time of 12.28 seconds. Now factor in that his car is probably averaging below 118mph over the remaining 320' and you will probably agree that his overall elapsed time was affected by less than 1/10 of a second and that he is still a good .3 seconds away from the 11's. That is why ET is all in the launch...

Tom

SilverArrow_AMG

dude..... you just blew my mind

moparrbust

Your trap speed on your second pass is what I trapped two weeks ago. The 60' time is what deturmins how good a run you will have. Here's my real world example:

You ran a 12.96 @112.14 with a 2.32 60'


I ran a 12.40 @ 112.10 with a 1.85 60'


Find yourself an extra set of wheels and put some drag radials on them and your traction issues will be less prevelant.

acb3nz

I Like Soup

Better than my first runs. :kicksrock:

NXtremeJeep

Tom,

Impressive analysis, however, you assumed that he was under full throttle as he passed the 1000' foot mark. We don't at what point he let off. Either way, I may have slightly miscalculated he's estimated ET had he not let off.

Good to have a number cruncher around here...

TMC M5

LOL...hey you have to give the guy some credit that he didn't let off a full 1/4 of the track before the finish.

And btw the 1000' trap was a pretty good speed for a stock E55. Also look at the trap speeds for the two runs...it seems reasonable that he was carrying a higher trap by 1+mph at the 1/8 mile and 1000' marks than the second run.

Tom

NSX2NV

I just made a post to vote on what I'll run. I'm going back to the track this next Friday the 3rd. Vote and see if you're right

Hammer Down

If you are talking trap speed.....1st Enzom 118.69 , 2nd Housclass 118.35 , 3rd Hammer Down 117.73 but if you're talking about et.... 1st Enzom @ 11.77, 2nd Housclass @ 11.849 , 3rd Chicago X @ 11.90

NSX2NV

Whoa those times were stock? I hope to hit 12.1 if I'm lucky. Did they do that on street tires, drag radials, or slicks? Stock wheels or aftermarket?

rflow306

Good luck at the track next time out.

I like the fact the track gives you the 1000 foot trap, not many tracks do.

I bet it has to do with the NHRA reducing the race distance for the Top classes.

TMC M5

There are so many variables that will affect your future runs compared to the previous two. You may devise a better launching technique and gain a good 1/10 from that. Better air (i.e. temp, humidity) stickier track conditions, tire inflation, etc. What pressure were you running in your rears? What were the weather conditions on the previous runs? Given all conditins and technique the same (except for the premature lifting of the right foot) I would say 12.3 @ 116.8mph. You improve the 60' time by .1...then I would say 12.2 @ 116.5mph.

Tom

Hammer Down

Enzom & Housclass were on factory wheels with street tires and I was on aftermarket 19's with street tires.

Max.H

impressive numbers! did you make your runs at sac or infenion raceway?

Hammer Down

I made my runs at Sac and had they prepped the track I would have run high 11's along with Jesse (SLK55R) as well. We were limited by traction.