2 Time Slips - What's the difference
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E55
2 Time Slips - What's the difference
This has been bothering me all weekend. I went to the track on Friday and ran a 11.54. My best thus far has been a 11.515. What is troubing me is that my trap speed is higher yet it doesn't look like my car picked up much speed in the 1/4 mile. If you look at the 60 ft. time it is .029 higher than my best and the 1/4 mile is .025 higher. Strange given the increase in trap speed in my opinion. Any thoughts?
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From: Hollywood CA
2011 twin turboed prius
This has been bothering me all weekend. I went to the track on Friday and ran a 11.54. My best thus far has been a 11.515. What is troubing me is that my trap speed is higher yet it doesn't look like my car picked up much speed in the 1/4 mile. If you look at the 60 ft. time it is .029 higher than my best and the 1/4 mile is .025 higher. Strange given the increase in trap speed in my opinion. Any thoughts?
Wow,
You are going to be amazed at this.
Your car produced more power in June, your run was faster. Your March run was at a highly negative DA producing faster times than normal. Like if you had a tail wind etc. Your cars times throughout the slip in June are better than your March times.
The closest weather results for 06/15/2007 at 09:43 pm
Time recorded 9:35 PM
Temperature °F 60.8Dew Point °F 48.2
Altimeter Setting 30.07 in Mercury
Density Altitude: 208.3 feet
Track Elelvation: 86 feet
UnCorrected ET:
11.54 (sec) @ 123.69 (MPH)
Corrected ET to Sea Level:
11.515 (sec) @ 123.967 (MPH)
Your run in marcch was actually slightly slower when correcting to standard condition.
Your car was producing more power in June due to more favorable air temp. Although the car seemed faster in March when looking at the slip it was actually slower because of the DA of negative -959. Here is the corrected slip in MArch
The closest weather results for 03/31/2007 at 01:01 pm
Time recorded 12:55 PM
Temperature °F 48.2
Dew Point °F 19.4
Altimeter Setting 30.27 in Mercury
Density Altitude: -959 feet
Track Elelvation: 86 feet
UnCorrected ET:
11.515 (sec) @ 121.91 (MPH)
Corrected ET to Sea Level:
11.631 (sec) @ 120.653 (MPH)
Had you had your car from the June run run at negetive DA you would have run 11.315@125.7
Your run in June without a question was faster so your car produced power more effectively
Last edited by juicee63; Jun 17, 2007 at 05:49 PM.
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From: Mia
2005 E 55
This has been bothering me all weekend. I went to the track on Friday and ran a 11.54. My best thus far has been a 11.515. What is troubing me is that my trap speed is higher yet it doesn't look like my car picked up much speed in the 1/4 mile. If you look at the 60 ft. time it is .029 higher than my best and the 1/4 mile is .025 higher. Strange given the increase in trap speed in my opinion. Any thoughts?
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E55
Wow,
You are going to be amazed at this.
Your car produced more power in June, your run was faster. Your March run was at a highly negative DA producing faster times than normal. Like if you had a tail wind etc. Your cars times throughout the slip in June are better than your March times.
The closest weather results for 06/15/2007 at 09:43 pm
Time recorded 9:35 PM
Temperature °F 60.8Dew Point °F 48.2
Altimeter Setting 30.07 in Mercury
Density Altitude: 208.3 feet
Track Elelvation: 86 feet
UnCorrected ET:
11.54 (sec) @ 123.69 (MPH)
Corrected ET to Sea Level:
11.515 (sec) @ 123.967 (MPH)
Your run in marcch was actually slightly slower when correcting to standard condition.
Your car was producing more power in June due to more favorable air temp. Although the car seemed faster in March when looking at the slip it was actually slower because of the DA of negative -959. Here is the corrected slip in MArch
The closest weather results for 03/31/2007 at 01:01 pm
Time recorded 12:55 PM
Temperature °F 48.2
Dew Point °F 19.4
Altimeter Setting 30.27 in Mercury
Density Altitude: -959 feet
Track Elelvation: 86 feet
UnCorrected ET:
11.515 (sec) @ 121.91 (MPH)
Corrected ET to Sea Level:
11.631 (sec) @ 120.653 (MPH)
Had you had your car from the June run run at negetive DA you would have run 11.315@125.7
Your run in June without a question was faster so your car produced power more effectively
You are going to be amazed at this.
Your car produced more power in June, your run was faster. Your March run was at a highly negative DA producing faster times than normal. Like if you had a tail wind etc. Your cars times throughout the slip in June are better than your March times.
The closest weather results for 06/15/2007 at 09:43 pm
Time recorded 9:35 PM
Temperature °F 60.8Dew Point °F 48.2
Altimeter Setting 30.07 in Mercury
Density Altitude: 208.3 feet
Track Elelvation: 86 feet
UnCorrected ET:
11.54 (sec) @ 123.69 (MPH)
Corrected ET to Sea Level:
11.515 (sec) @ 123.967 (MPH)
Your run in marcch was actually slightly slower when correcting to standard condition.
Your car was producing more power in June due to more favorable air temp. Although the car seemed faster in March when looking at the slip it was actually slower because of the DA of negative -959. Here is the corrected slip in MArch
The closest weather results for 03/31/2007 at 01:01 pm
Time recorded 12:55 PM
Temperature °F 48.2
Dew Point °F 19.4
Altimeter Setting 30.27 in Mercury
Density Altitude: -959 feet
Track Elelvation: 86 feet
UnCorrected ET:
11.515 (sec) @ 121.91 (MPH)
Corrected ET to Sea Level:
11.631 (sec) @ 120.653 (MPH)
Had you had your car from the June run run at negetive DA you would have run 11.315@125.7
Your run in June without a question was faster so your car produced power more effectively
Thread Starter
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E55
Juicee63,
This is very helpful. What is the difference between the March and June run? About 80 pounds in unsprung weight, or about 320 pounds in static weight. Most people say that reducing 320 pounds in static weight is equivalent to adding 32 hp which can add 3.2 mph to your trap speed. I think that is what we are seeing here.
This is very helpful. What is the difference between the March and June run? About 80 pounds in unsprung weight, or about 320 pounds in static weight. Most people say that reducing 320 pounds in static weight is equivalent to adding 32 hp which can add 3.2 mph to your trap speed. I think that is what we are seeing here.
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300ce
...........I agree that it is all in your 60ft time. For the same et, the run with the slower 60ft time will have the higher trapspeed. The idea is that your car has more distance to cover allowing it to get to a higher speed at the end of the 1/4 mile.
Ted
Ted
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From: Hollywood CA
2011 twin turboed prius
Juicee63,
This is very helpful. What is the difference between the March and June run? About 80 pounds in unsprung weight, or about 320 pounds in static weight. Most people say that reducing 320 pounds in static weight is equivalent to adding 32 hp which can add 3.2 mph to your trap speed. I think that is what we are seeing here.
This is very helpful. What is the difference between the March and June run? About 80 pounds in unsprung weight, or about 320 pounds in static weight. Most people say that reducing 320 pounds in static weight is equivalent to adding 32 hp which can add 3.2 mph to your trap speed. I think that is what we are seeing here.
Awesome runs BTW. Wicked fast ride you have
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MBWorld Fanatic!
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From: Hollywood CA
2011 twin turboed prius
Very true..
we agree again LOL
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Drives Slowly
Sleeper, nice run bud. It sounds like the Evo rotors and light weight wheels are making a difference.
Try this experiment the next time you are at the track. Instead of attempting to come out of the hole hard to get the best 60ft time. Attempt to shoot for your best trap speed. I'd be interested to see what happens if you don't rocket out of the gate so hard.
Juicee, nice post my friend........a lot of good information there.
Try this experiment the next time you are at the track. Instead of attempting to come out of the hole hard to get the best 60ft time. Attempt to shoot for your best trap speed. I'd be interested to see what happens if you don't rocket out of the gate so hard.
Juicee, nice post my friend........a lot of good information there.
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E55
Sleeper, nice run bud. It sounds like the Evo rotors and light weight wheels are making a difference.
Try this experiment the next time you are at the track. Instead of attempting to come out of the hole hard to get the best 60ft time. Attempt to shoot for your best trap speed. I'd be interested to see what happens if you don't rocket out of the gate so hard.
Juicee, nice post my friend........a lot of good information there.
Try this experiment the next time you are at the track. Instead of attempting to come out of the hole hard to get the best 60ft time. Attempt to shoot for your best trap speed. I'd be interested to see what happens if you don't rocket out of the gate so hard.
Juicee, nice post my friend........a lot of good information there.
Last edited by SleeperX; Jun 17, 2007 at 09:14 PM.
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E55
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new balance
wow very impressive, yeah put some real rubber on there and see what it will do
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From: NYC
E 63,E55 (gone) E46 ///M ,B5 stage 3 S4 ,E36 ///M , 03 EVO (800 WHP)
Im sure with some drags you can get your et down a tenth or 2. your trap speed may have increased but that doesnt change the fact that our cars are limited to how hard we can get out of the hole. 60 is the key in low et's. if these cars were able to stall speed at a higher rpm with some slicks we would see alot of 10 sec passes. thats why Nitrous is the only other way to make up for it once your out or the whole.
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'03 E55, Range Rover Sport Supercharged, Ducati 748R
i think we'll see a few non n2o 10 second passes once we get a reliable i/c cooling set-up.
Last edited by chiromikey; Jun 18, 2007 at 03:26 AM.
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E55
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E55K
What mods do you have aqnd what size tyres do you run, pressure etc ???
Do you do burn outs ???
Do you lower the tyre pressure ???
ESP on or OFF ???
At which RPMS and how do you launch ???
Thanks
Do you do burn outs ???
Do you lower the tyre pressure ???
ESP on or OFF ???
At which RPMS and how do you launch ???
Thanks
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300ce
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E55
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E55
What mods do you have aqnd what size tyres do you run, pressure etc ???
245/40/18 in the front
275/35/18 in the rear.
Notes: These tires do not come in 19s.
Do you do burn outs ???
Yes
Do you lower the tyre pressure ???
Sometimes, but typically I don't. DJE55, achieved a 1.61 60' with more air pressure in his tires than I use in normal everyday driving.
ESP on or OFF ???On
At which RPMS and how do you launch ???Idle. Enzom's launch technique. No pre-loading.
Thanks
245/40/18 in the front
275/35/18 in the rear.
Notes: These tires do not come in 19s.
Do you do burn outs ???
Yes
Do you lower the tyre pressure ???
Sometimes, but typically I don't. DJE55, achieved a 1.61 60' with more air pressure in his tires than I use in normal everyday driving.
ESP on or OFF ???On
At which RPMS and how do you launch ???Idle. Enzom's launch technique. No pre-loading.
Thanks
