Car is getting slower in 1/4 - MustangForums.com


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Old 06-25-2011, 10:34 PM   #1
BraMas
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Default Car is getting slower in 1/4

Last year I managed to get a 13.19 @ 105 I made it to the track last night and I'm trapping faster now but could only manage a best of 13.53. I know DR would help but there has to be a high 12's in a car trapping 107? right
here are a couple of runs. I'll post a video in the morning
60ft 1.977
1/8 et 8.7
1/8 mph 78.68
1/4 et 13.53
1/4 mph 106.15

60ft 2.088
1/8 et 8.82
1/8 mph 81.08
1/4 et 13.55
1/4 mph 107.16
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Old 06-25-2011, 10:40 PM   #2
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Decent numbers Bramas, what are you running for gears ?
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Old 06-25-2011, 10:49 PM   #3
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not much into drag racing but i know track temps help or hurt tire grip. that could be a big reason. plus a car will probably never run the exact same numbers twice even under the same conditions, too many variables. it might help if you posted the numbers from that 13.19 from last year.
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Old 06-25-2011, 11:11 PM   #4
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Your two passes in the OP seem pretty consistent...even if the numbers leading up to the 1/4 aren't as close as the 1/4 numbers.

Are you shifting at the same rpms consistently? Was that 13.19 pass on a cooler day? Today most of MI wasn't exactly scorching hot but cooler temperatures can make a small difference.
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Old 06-25-2011, 11:48 PM   #5
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Doesn't weather play a role in performance. So temp, humidity, atmospheric pressure, etc are all variables.
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Old 06-26-2011, 12:02 AM   #6
Sxynerd
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Quote:
Originally Posted by BraMas View Post
Last year I managed to get a 13.19 @ 105 I made it to the track last night and I'm trapping faster now but could only manage a best of 13.53. I know DR would help but there has to be a high 12's in a car trapping 107? right
here are a couple of runs. I'll post a video in the morning
60ft 1.977
1/8 et 8.7
1/8 mph 78.68
1/4 et 13.53
1/4 mph 106.15

60ft 2.088
1/8 et 8.82
1/8 mph 81.08
1/4 et 13.55
1/4 mph 107.16
Changes in Humidity is your Frenemy
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Old 06-26-2011, 08:12 AM   #7
BraMas
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It was kinda cold Fri. Lower 60's if I remember right. Here is the Video and last years slip. And that gay *** music is from the track I did not put that in the video. And I was wrong earlier it wasn't last year but 2009


Last edited by BraMas; 06-26-2011 at 08:15 AM.
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Old 06-26-2011, 08:16 AM   #8
lizzyfan
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We know you love Oasis
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Old 06-26-2011, 08:28 AM   #9
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its in your 60', thats where you are losing you ET

with a better 60' youll get down into the high 12's NP
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Old 06-26-2011, 08:39 AM   #10
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what are your 330 ft times when you last went?
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