weather and how it affects performance
07-20-2010, 01:45 PM
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weather and how it affects performance i went to the track the other day with some friends and we all ran horrible times. my friend in the 335i has ran 8.5 at 87.9 mph with a passenger and full tank in the 1/8th and he could only get a 8.97 at 83mph, friend in a cammed 5.3 truck runs consistent 8.6-8.7s at 81 and was only running 9.3s at 75mph. All the good times were on a 70 degree day and the bad times were on 92degree with alot of humidity, i didnt know weather could slow you down that much....can it??
07-20-2010, 01:48 PM
#2
i went to the track the other day with some friends and we all ran horrible times. my friend in the 335i has ran 8.5 at 87.9 mph with a passenger and full tank in the 1/8th and he could only get a 8.97 at 83mph, friend in a cammed 5.3 truck runs consistent 8.6-8.7s at 81 and was only running 9.3s at 75mph. All the good times were on a 70 degree day and the bad times were on 92degree with alot of humidity, i didnt know weather could slow you down that much....can it??
07-20-2010, 01:49 PM
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i went to the track the other day with some friends and we all ran horrible times. my friend in the 335i has ran 8.5 at 87.9 mph with a passenger and full tank in the 1/8th and he could only get a 8.97 at 83mph, friend in a cammed 5.3 truck runs consistent 8.6-8.7s at 81 and was only running 9.3s at 75mph. All the good times were on a 70 degree day and the bad times were on 92degree with alot of humidity, i didnt know weather could slow you down that much....can it??
07-20-2010, 01:50 PM
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07-20-2010, 01:51 PM
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DA definitely hurts the cars performance. Once I found out how much of a difference DA makes I stopped going. Will start going again maybe in the fall when its cooler....
07-20-2010, 01:54 PM
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Did you end up getting a 6.0 or a 5.7?
07-20-2010, 02:00 PM
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07-20-2010, 02:57 PM
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07-20-2010, 03:03 PM
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http://www.dragtimes.com/da-density-...calculator.php
I ran a 13.5 in the 1/4 but should have been more like 13.3
I ran a 13.5 in the 1/4 but should have been more like 13.3
07-20-2010, 09:01 PM
#13
Density altitude (temp, humidity/dewpoint, altitude/elevation) makes all the difference in the world. Alot of us run the numbers and figures and adjust for it. You should look into it a little bit more; you can find several sites were you can plug in the variables, and you'll see your times and trap speeds from hot humid days coincide with the ones from better days.
I've ran 12.6 at 112 in the 1/4 on a 60 degree with mild humidity, and I only managed a 13.7 in 95 degree weather 90% humidity. ... It's the ugly truth... It's hurt NA mod/tuned cars most. The bigger cubes and forced induction suffer less.
I've ran 12.6 at 112 in the 1/4 on a 60 degree with mild humidity, and I only managed a 13.7 in 95 degree weather 90% humidity. ... It's the ugly truth... It's hurt NA mod/tuned cars most. The bigger cubes and forced induction suffer less.
07-20-2010, 11:34 PM
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you can play with my 5.7 it went 8.07@90 with headers,u/d pulley,cai and tune.
of course it should be faster in a month or two ahhhaaa
of course it should be faster in a month or two ahhhaaa
07-20-2010, 11:36 PM
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07-20-2010, 11:41 PM
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well the 50extra hp helps....and for the low income i make would take me forever to get a 5.7 where i want it to be, full exhuast,intake and tune 385+whp 5.7 would only do like 350 maybe?
07-20-2010, 11:43 PM
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Density altitude (temp, humidity/dewpoint, altitude/elevation) makes all the difference in the world. Alot of us run the numbers and figures and adjust for it. You should look into it a little bit more; you can find several sites were you can plug in the variables, and you'll see your times and trap speeds from hot humid days coincide with the ones from better days.
I've ran 12.6 at 112 in the 1/4 on a 60 degree with mild humidity, and I only managed a 13.7 in 95 degree weather 90% humidity. ... It's the ugly truth... It's hurt NA mod/tuned cars most. The bigger cubes and forced induction suffer less.
I've ran 12.6 at 112 in the 1/4 on a 60 degree with mild humidity, and I only managed a 13.7 in 95 degree weather 90% humidity. ... It's the ugly truth... It's hurt NA mod/tuned cars most. The bigger cubes and forced induction suffer less.
07-21-2010, 10:57 AM
#20
Use the quote symbol to your right with that has the + sign on it....once you clicked on all the post you wanna quote scrowl down and on the left side hit the post reply button. It should load all the comments you want to reply to.