Took my car to the track today ...
06-30-2001 | 05:33 AM
#1
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Retired. Not available.
Joined: Apr 2001
Posts: 2,828
Likes: 1
From: Houston, TX
Took my car to the track today ...
did 5 runs (first run was a total screwed up.)
beat: BMW 325 ( I think .. it's debadged), ITR, 01 Eclipse GT.
Lost: another ITR.
Temp: 85 Humidity 100% Car weight 3425 (rear seats, spare were stripped out. I'm working on my system.)
Best time 14.933@94.88 (is it bad?)
Worst time 22.17@82.91 ( I stopped cuz my friend in the Eclipse GT didnt take off.)
Lesson: need to learn how to launch correctly to eliminate wheel jump.
beat: BMW 325 ( I think .. it's debadged), ITR, 01 Eclipse GT.
Lost: another ITR.
Temp: 85 Humidity 100% Car weight 3425 (rear seats, spare were stripped out. I'm working on my system.)
Best time 14.933@94.88 (is it bad?)
Worst time 22.17@82.91 ( I stopped cuz my friend in the Eclipse GT didnt take off.)
Lesson: need to learn how to launch correctly to eliminate wheel jump.
06-30-2001 | 08:19 AM
#3
Three Wheelin'
Joined: Jan 2001
Posts: 1,587
Likes: 0
From: North Potomac MD
Those are really good times for your car with just a CAI. How much do you estimate the back seat weighs?
A new set of tires will def. help your launching. With my Potenzas I can floor it and really only get wheel hop on level surfaces, thus eliminating the time wasting spinning of tires.
A new set of tires will def. help your launching. With my Potenzas I can floor it and really only get wheel hop on level surfaces, thus eliminating the time wasting spinning of tires.
06-30-2001 | 01:21 PM
#7
Advanced
Joined: Jun 2001
Posts: 67
Likes: 0
From: NJ
The weather has a lot to do with your ET. With the high humidity your intake wasn't really doing anything. With your stereo stuff weighing your car down thats not bad. What kind of reaction times were you getting?
01 CLS sundance gold pearl
Zephyr CAI
Raceway Park, Englishtown NJ
May 30,2001
14.606 @ 96.04mph 76 degrees 38% humidity
01 CLS sundance gold pearl
Zephyr CAI
Raceway Park, Englishtown NJ
May 30,2001
14.606 @ 96.04mph 76 degrees 38% humidity
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06-30-2001 | 01:32 PM
#8
Suzuka Master
Joined: Nov 2000
Posts: 7,601
Likes: 0
From: Northern VA
One thing I noticed w/ the stock tires is that FLOORING is a bad way to launch the car. Instead try squeezing your throttle gently and then all the way. This way you can still keep your car in d3 (since your 1/4 mile won't go over 110) and in 1st you can still bring it up to 7000.
I know the gut instinct is to just mash the pedal when u see the green but w/ stock tires we have no traction so I reallly don't think it helps but rather hurts the times.
if u don't want to leave it in d3 and want more control like me. use 1st->2nd->d3.
I currenly have 18k on my tires w/ 2 rotations. I plant to get another 12k out of them and switch to potenza's.
I know the gut instinct is to just mash the pedal when u see the green but w/ stock tires we have no traction so I reallly don't think it helps but rather hurts the times.
if u don't want to leave it in d3 and want more control like me. use 1st->2nd->d3.
I currenly have 18k on my tires w/ 2 rotations. I plant to get another 12k out of them and switch to potenza's.
06-30-2001 | 08:23 PM
#9
Three Wheelin'
Joined: Jan 2001
Posts: 1,325
Likes: 0
From: Phoenix, AZ
Do some tracks print weather info on the timeslips? I think they all need to. I REALLY don't mean to start a flame war here, but if the temp was 85, the humidity wasn't 100%. That's physically impossible on Earth. Here's a little meteorology lesson for you all...
Humidity is determined by the dewpoint. Anything over 55 and it's generally enough humid to rain (this is a HUGE generalization). Houston typically has dewpoints in the 70s in the summer which is very humid. On very very rare occasions, the dewpoint can reach 80-82 in the tropics and even non-tropical areas like Houston. When the dewpoint equals the temperature, then you have 100% humidity. So the dewpoint would have had to have been 85 for the humidity to be 100%.
An example, at this very moment...
Phoenix 111 degrees, 42 dewpoint, 10% humidity (heat index 106)
Houston 87 degrees, 73 dewpoint, 63% humidity (heat index 95)
So it was probably 60-65% humidity when you ran. A lot less than 100%.
Sorry, but people are constantly exaggerating how hot and humid it was when they ran their car and it bugs the hell outta me!!
Humidity is determined by the dewpoint. Anything over 55 and it's generally enough humid to rain (this is a HUGE generalization). Houston typically has dewpoints in the 70s in the summer which is very humid. On very very rare occasions, the dewpoint can reach 80-82 in the tropics and even non-tropical areas like Houston. When the dewpoint equals the temperature, then you have 100% humidity. So the dewpoint would have had to have been 85 for the humidity to be 100%.
An example, at this very moment...
Phoenix 111 degrees, 42 dewpoint, 10% humidity (heat index 106)
Houston 87 degrees, 73 dewpoint, 63% humidity (heat index 95)
So it was probably 60-65% humidity when you ran. A lot less than 100%.
Sorry, but people are constantly exaggerating how hot and humid it was when they ran their car and it bugs the hell outta me!!
07-01-2001 | 10:00 PM
#10
Thread Starter
Retired. Not available.
Joined: Apr 2001
Posts: 2,828
Likes: 1
From: Houston, TX
Originally posted by GoldTypeS:
<STRONG>Do some tracks print weather info on the timeslips? I think they all need to. I REALLY don't mean to start a flame war here, but if the temp was 85, the humidity wasn't 100%. That's physically impossible on Earth. Here's a little meteorology lesson for you all...
Humidity is determined by the dewpoint. Anything over 55 and it's generally enough humid to rain (this is a HUGE generalization). Houston typically has dewpoints in the 70s in the summer which is very humid. On very very rare occasions, the dewpoint can reach 80-82 in the tropics and even non-tropical areas like Houston. When the dewpoint equals the temperature, then you have 100% humidity. So the dewpoint would have had to have been 85 for the humidity to be 100%.
An example, at this very moment...
Phoenix 111 degrees, 42 dewpoint, 10% humidity (heat index 106)
Houston 87 degrees, 73 dewpoint, 63% humidity (heat index 95)
So it was probably 60-65% humidity when you ran. A lot less than 100%.
Sorry, but people are constantly exaggerating how hot and humid it was when they ran their car and it bugs the hell outta me!!</STRONG>
<STRONG>Do some tracks print weather info on the timeslips? I think they all need to. I REALLY don't mean to start a flame war here, but if the temp was 85, the humidity wasn't 100%. That's physically impossible on Earth. Here's a little meteorology lesson for you all...
Humidity is determined by the dewpoint. Anything over 55 and it's generally enough humid to rain (this is a HUGE generalization). Houston typically has dewpoints in the 70s in the summer which is very humid. On very very rare occasions, the dewpoint can reach 80-82 in the tropics and even non-tropical areas like Houston. When the dewpoint equals the temperature, then you have 100% humidity. So the dewpoint would have had to have been 85 for the humidity to be 100%.
An example, at this very moment...
Phoenix 111 degrees, 42 dewpoint, 10% humidity (heat index 106)
Houston 87 degrees, 73 dewpoint, 63% humidity (heat index 95)
So it was probably 60-65% humidity when you ran. A lot less than 100%.
Sorry, but people are constantly exaggerating how hot and humid it was when they ran their car and it bugs the hell outta me!!
</STRONG>
About Houston weather, I think I saw way too many summer days with 100% humidity to classify 100% humidity is rare.
typical summer day from msnbc.com
Current Condition 75° WIND N 4 mph BAROMETER 30.02" HUMIDITY 81%
--------------------------------------------------------------------------------
UV 4.30 REAL FEEL 85° VISIBILITY 10.00 mi
--------------------------------------------------------------------------------
UV 4.30 REAL FEEL 85° VISIBILITY 10.00 mi
NoVa, I shifted 1->2->3 and hit the red line most of the time (but not rev limiter).
89Si, I had no system at the time .. All I had was the Head Unit and some wires My R/T were horrible anywhere from 1.014 to 1.39 (forgive me, plz, my first time at the track
)
07-01-2001 | 11:02 PM
#11
Three Wheelin'
Joined: Jan 2001
Posts: 1,325
Likes: 0
From: Phoenix, AZ
Originally posted by SilverKnight:
<STRONG>
About Houston weather, I think I saw way too many summer days with 100% humidity to classify 100% humidity is rare.
typical summer day from msnbc.com
</STRONG>
<STRONG>
About Houston weather, I think I saw way too many summer days with 100% humidity to classify 100% humidity is rare.
typical summer day from msnbc.com
</STRONG>
07-02-2001 | 12:46 AM
#12
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Retired. Not available.
Joined: Apr 2001
Posts: 2,828
Likes: 1
From: Houston, TX
Originally posted by GoldTypeS:
<STRONG>
Sorry if I came across as being a dick, but this is just what I mean. I never said the humidity doesn't reach 100%. I said the dewpoint never gets to 85 and it never does. The humidity always goes up overnight because the dewpoint usually stays fairly constant. If the dewpoint is in the 70s, and the overnight temp is in the 70s, then the humidity is near 100%, but during the day it heats up, the difference between the temperature and dewpoint is larger and the humidity drops. It's like this everywhere (even the desert).</STRONG>
<STRONG>
Sorry if I came across as being a dick, but this is just what I mean. I never said the humidity doesn't reach 100%. I said the dewpoint never gets to 85 and it never does. The humidity always goes up overnight because the dewpoint usually stays fairly constant. If the dewpoint is in the 70s, and the overnight temp is in the 70s, then the humidity is near 100%, but during the day it heats up, the difference between the temperature and dewpoint is larger and the humidity drops. It's like this everywhere (even the desert).</STRONG>
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