your last two sentances were very sarcastic to say the least. I do not appreciate people talking sarcasticly or whatever about me espically when they are not fully knowledagable on what they are talking about. I find that childish. I would never lay down info and make it sarcastic about FI information because i dont know jack about it just the basics. However i will add in my .02 about FI but never will i put in any sarcastic remarks unless in 90%+ sure.

I personally want to know what i would have gotten given the same setting but just at sea level. Im sure you would want to know what you got too at a sea level condition. Afterall, at sea level is suppose to be your real/idea time/setting anyways.

 

14.766 @ 94.73mph
2.254 - 60ft
bone stock, < 700 miles on the odo at the time.


| Hawaii International Race School | Formula Hawaii | Drift Session | Mid Pac Road Racing Association |

 

Dude, your real time is the time shown on the slip.

Any other time is a fake time.

Not accepting a toke on the peace pipe is bad karma.



2004 G35C 6MT Black. Killer.

 

Xenon,

Relax, no one is out to offend you. Neff was just being funny...don't read too far into it. Work on your launch and 60' time and you'll run as good of a time as possible for the conditions.

2 G or NOT 2 G, there is no question!

Injen SES, Kinetix cats, K&N Typhoon, 19" PIAA Super Rozza's (19x9 & 19x10)

 

For Proof:

Hawaii Raceway Park isnt the best track. Cracks on the tarmac and untreated. People say we're about 0.5 seconds slower than guys on the mainland. My friend brought over his 8sec Twin Turbo Small Block Chevy powered Grand National. It's capable of mid 9s on our Drag Strip with crazy wheel spin on the top end of the track. I'd probably have a lower time on a track where there's less humidity. Hawaii's Humidity averages 75%

| Hawaii International Race School | Formula Hawaii | Drift Session | Mid Pac Road Racing Association |

 

<blockquote><font class="small">In reply to:</font><hr>

your last two sentances were very sarcastic to say the least.

<hr></blockquote>
…and my last two sentences were…


<blockquote><font class="small">In reply to:</font><hr>

That would be just too funny.

And I realize that the above variances make people get different times, but how could an equation take into consideration enough of the variables to be believable?

<hr></blockquote>
You call that sarcastic? On my worst day if I was trying to be sarcastic I could do much better than that. Now I’m insulted!!! Anyway…If I offended you I'm truly sorry. That was definitely not the intent.

Just for the record I followed the 3 links that -fish posted. I registered for smokemup.com, entered my time, trap speed, then went to the weather.com website to find today’s temp, relative humidity, dew point, pressure, etc... (Today was similar to the day I ran at the track), I then e-mailed Orlando Speedway to find out that the starting line is 66 feet above sea level (hey I'm in FL and the hills are like mountains) then I let the computer do the “magical” calculation. My time translated into 0.1 seconds faster or 14.4 sec at about the same mph. I changed the altitude to 5000 feet and my time went down to something like 13.2 seconds. I really don’t believe that I could run a ¼ mile in a slightly modified G35 in that time, then again the humidity today was ~71% and the dew point was 75 degrees Fahrenheit and the pressure was .44 in-Hg (or 44). I doubt that if I was at 5000 feet the humidity and pressure readings would be the same so who knows?

Maybe there is something to this "corrected time". If so, I haven’t figured it out yet…

Another cool fact, I entered the Central Florida Dyno Day Temp, Pressure, Relative Humidity, etc… into one of the links that –fish posted and it gave me a correction factor for the dyno, which was 0.99. That was the EXACT correction factor that the Dyno Jet spit out. I thought that was neat!

<font color=blue>The above statements are only my take on the issue. If you disagree with anything I typed then you are 100% right!</font color=blue>

 

14.105 @ 100.02. My 60 foot were mostly in the 2.1-2.2 range.

G35 Coupe, Z-Tube and K&N drop-in, that's it!

Temps were in the 75-80 degrees range and humidity was pretty high. Track elevation is probably a few hundred feet.

 

damn...you guys got some awesome times and trap speeds. your 60' time is also hella good.

my first night dragging at LACR and my best was 15.052 @ 94.090 mph. No 60' times cause the right lane sensor was out. my best 60' time in the left lane was 2.371 with a 1/4 time of 15.323 @ 93.054 mph

z-tube, popcharger, fujitsubo y-pipe and exhaust, lowered on eibach pro-kit. stocl 18" tires were at 35 psi all around with a little over 1/4 tank of gas. don't know the temp.

Golden Gate G35 Club

 

Here's my slip from back in March.



317529-chops_et.jpg

 

Here's my slip from back in March.



317529-chops_et.jpg

 

and here's a pic of that same race!



317530-chops_drag.jpg

 

and here's a pic of that same race!



317530-chops_drag.jpg

 

ATCO from April 58 degrees mid 50's humidity. Not the best track as a bike blew up before the G/Z runs and there was some oil clean up for 45 minutes. Launch was good tho.





2003.5 DP 5AT Sedan
14.2 @ 97.18
Z-Tube
K&N Drop In & Airbox Mod
10 Wire Hyper-Ground
Crawford Plenum (V4)
UR Crank Pulley
Hotchkis Sways (M/M)
Polk EX-3500 Tweeters/Shock Sensor/H-Liner

 

PS had the injen intake then and am faster now )

2003.5 DP 5AT Sedan
14.2 @ 97.18
Z-Tube
K&N Drop In & Airbox Mod
10 Wire Hyper-Ground
Crawford Plenum (V4)
UR Crank Pulley
Hotchkis Sways (M/M)
Polk EX-3500 Tweeters/Shock Sensor/H-Liner

 

Neff,
Sarcasm on this board? Nahhhh...never seen it. People must be imagining things.

Denver can have the same "relative" humidity that Florida does. Air at any altitude can hold only so much water, and the hotter it gets, the more water air can hold before precipitating. What's really being measured is the dew point/temperature spread. It is one input that is required to calculate what's called, Density Altitude. It is a must know in aviation to know the following, or you may die: Altitude, outside temperature, barometric pressure (29.92 is standard in aviation, but not in SAE), humidity (or better yet dew point). These things are all calculated to determine one's Density Altitude.

Density Altitude is simply the air, and what altitude your engine thinks it's at.... or more accurately, how dense is the air where you're at. Denver can have a barometer reading of 29.92 just like Miami can. The two can also have the same dew point/temperature spread. These are just two of many factors that will affect the density of the air.

These equations I've posted take all of that into account and calculate a "standard" that aviators call Density Altitude. You are correct that one cannot, for all practical purposes, factor in every variable. For instance the stickiness of the track, or the slope of the track (actually you could calculate all this but now we're in differential equation land, right?).

Some things we have to just assume, like tire pressure, wind, track stickiness, wind shear, turbulence, smoothness of the road, shape of your tires, and many other variables.

But by simply recording temp, altitude, dew point, barometric pressure (this is a whole different chapter how pressure works), we can at least control for the condition of the air when calculating 1/4 mile times and HP ratings. Can you imagine the poor souls in the Smokies with their G Techs logging their 1/4 mile times at 2500 feet, 88 degrees, 29.0 inches of mercury on a 90% humidty day? Poor souls think they somehow got stuck with a stock Maxima engine.

As far as winds go, that too can be factored if one wants to really get precise, but simply isn't practical for the comparisons we're all wanting to do. Knowing your headwind component, front surface area, and coefficient of drag can even tell you how much "HP is being sapped". Go to the GTech home page and they provide a page where it will tell you what drag is doing to your car as well. Remember, the faster you're going, the more pronounced drag is. If I remember correctly one has to cube their HP to double their speed due to drag alone, but maybe someone can correct me on this one.

http://www.gtechprosupport.com/support/


2004.5 Coupe/5AT/Ivory/Everything but front spoiler/Nismo CAI/Crawford V5/Crawford Cats