slower trap speeds
#1
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slower trap speeds
Last time I went out the the 1/4 mile I was traping 116. I was on shity stock size tires coopers I think. My 60 foot suck, my best was 60 was 2.3. I was doing low to mid 13", my best was 13.3.
Last night I hit the track again, I got better tires now they are 275 nitto 555. I was traping 112-113 all night. My 60ft I got it down to 1.9-2.1. My best run was a 12.5, I was running 12.6-12.8 all night. I got 15 passes in last night.
My times are better like expected but my trap speed went down, is there something going wrong with my car. Why is my trap speed down?
Last night I hit the track again, I got better tires now they are 275 nitto 555. I was traping 112-113 all night. My 60ft I got it down to 1.9-2.1. My best run was a 12.5, I was running 12.6-12.8 all night. I got 15 passes in last night.
My times are better like expected but my trap speed went down, is there something going wrong with my car. Why is my trap speed down?
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I been to the track and I hear about DA all the time. I really didn't care since I didn't go to the track much I know it has something with the weather or elevation but what is exactly. Sorry for the noob ?
#5
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Better 60's never hurt my trap. It either stayed the same or I gained mph, so I think that's a myth.
DA = density altitude. The lower the DA (more air), the better it is for performance and vise versa. Heat, high humidity and high DA will hurt performance/mph. That's why most shoot for great DA, low humidity and cool air for best ETs and mph. Ex: 50 degree weather, 30% humidity, low or negative DA. Unfortunately, some states don't get that great weather.
DA = density altitude. The lower the DA (more air), the better it is for performance and vise versa. Heat, high humidity and high DA will hurt performance/mph. That's why most shoot for great DA, low humidity and cool air for best ETs and mph. Ex: 50 degree weather, 30% humidity, low or negative DA. Unfortunately, some states don't get that great weather.
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That was my best passes last night. As soon as I got there I started running my car, I got a bite to eat and a restroom break, let the car rest for about 30mins and that's when I got my best pass. All my 15 runs were hot runs, one after the next. I don't have my old slips sorry! I can post up the other 13 if it will help!
Yeah the DA must of been high because it was hot and humid. Where can I find the DA?
Yeah the DA must of been high because it was hot and humid. Where can I find the DA?
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as others added, its not a myth. Is it absolute...no its not. As i said DA probably played in too. Plus im guessing this is a 6spd car so yes hooking will lower the mph since its most likely bogging. dont get all hung up on trap speed, your ET vastly improved...we aint driving hondas...
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as others added, its not a myth. Is it absolute...no its not. As i said DA probably played in too. Plus im guessing this is a 6spd car so yes hooking will lower the mph since its most likely bogging. dont get all hung up on trap speed, your ET vastly improved...we aint driving hondas...
#20
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my experience showed that *slightly spinning (2.0-2.1) 60' resulted in a consistently higher trap speed. hooking the car (which meant slipping the clutch) was typically 1.5-2 mph slower, but always made it up at the big end of the track. blowing the tires off the car (2.3+) always made the car trap lower. that's one thing about m6 cars, with a bad driver (like me) the same car will trap anywhere from 103 to 109 despite the attempted same input. my automagic car basically trapped the same whether it spun or not.
one thing i did notice: my auto car would lose on the street to cars that trapped the same.
my m6 car will pull cars on the street that trap the same. weird. i guess it just goes to show that i can't drive hahaha.
one thing i did notice: my auto car would lose on the street to cars that trapped the same.
my m6 car will pull cars on the street that trap the same. weird. i guess it just goes to show that i can't drive hahaha.