went to the track yesterday and my best run was.
60 time 2.237
14.788 @ 94.496

corrected 14.34 at 97.33.
intake, custom exhaust are my only "fast going" mods.
the track was dusty as usual, i was spinning a lot even when shifting 3rd.

 

You're not giving yourself enough credit because you're not calculating the density altitude.

http://wahiduddin.net/calc/calc_da.htm

Conditions last night in Palmdale were upper 50s, upper 30s dew point, 2,700' altitude, and 29.95 baro pressure. The calcuated DA was ~3,400'. Multiply ET by .9588 and MPH by 1.0437. The corrected ET/MPH is 14.178@99.03mph. Keep in mind all this is not an exact science though. It just a good estimate.

 

^nice I didn't even know that.

 

Dave can u calculate this time to normal condition at the same track same day.
This is my cousin's slip with his IS350, but my friend (who actually knows how to drive auto) was driving it with the traction control fully off.
60 time 2.162
1/4 mile 14.175 @96.722mph.

 

13.59@100.5mph.

 

That's a sick launch to hit a 13.5 at only 100mph.

Klubbheads - modulardepot has some pretty good correction utilities, available here.

 

ya man that IS is very fast. I was at the dragstrip earlier than he was. He came with 3 people in the car including him and did a 14.9 at 93.xx without launch or anything. I was shocked when i saw that. Then with the tires at 28psi, right driver and a good launch that is the time that my friend got with my cousin's IS350.

 

Yeah, this is why doing all these corrections to ET/MPH is far from an exact science.

 

^^^ Exactly. Going off of trap speeds, the correction from 96.722 to 100.5 is a factor of roughly 3.8%.

To reach a 14.1@96mph, I'd guess that's a mid to high 1.9 sixty foot; *purely* a guess. For the sake of argument, lets assume a 1.95. When you apply a 3.8% factor, that results in a sixty foor of 1.875.

I don't care if this is LACR or not, but he didn't pull a high 1.8 just because of altitude correction.

 

Actually the IS350 pulled a 2.16 60' which means the car has the potential to pull an upper 2.0 60 foot which is purely possible seeing that a few IS350s have seen upper 2.0 60 foots. The IS seems to behave like the 5AT G in that it's a bit doggy coming off the line and then it takes off at about 20-30mph.

 

That IS didn't pull a 2.16 sixty foot, not for a 14.1. My last time out, I pulled something like a 2.0 flat, and hit 14.1@101. It was a clean run, no misshifts, and not any particularly slow shifts either. 5mph difference in trap, but the same ET, does not a 2.16 60' make.

 

BTW - on my last trip out, I mentioned that I met a former coupe owner with an is350. He pulled a 14.2@97 with a mid 2.1

 

I doubt Klubbheads is lying. He specifically said the IS350 pulled a 14.17@96mph with a 2.16 60 foot. The 3500' DA really isn't going to impact 60 foot near as much as the rest of the run. Think about for a second, you're talking about the first 60 feet of a 1,320' run. It's going to take time and distance to see the difference between a run at sea level and at 3,500'. The car was about 10% down on power therefore the deficit in power is hardly going to make much difference in the first 60 feet. It is entirely plausible for this particular IS350 to be running 13.7-13.8@100-101mph in sea level air with a high 2.0/low 2.1 60 foot.

 

Oh I don't disagree with you; in fact, my point was that the corrections won't affect the 60' to a great deal.

I missed where he posted a 2.16' sixty foot. I still can't reconcile that sixty foot with a 14.1@96.

 

i will post all the slips as soon as get them scanned.