1/4 and 1/8 Mile Racing Talk about track times, launch techniques, strategies, etc. Check out the "Timeslips" subforum for posted times.No discussion of street racing will be tolerated.

I'm improving

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Old May 14, 2005 | 06:11 PM
  #1  
Loe max's Avatar
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From: sarasota FL
I'm improving

Todays conditions aren't what I'd call Ideal, but I headed out anyways.

Temp 56degrees
Winds west at 28mph with 33mph gust (headwind)
Humidity 66%
Track elevation above 3,000 ft.

I finally figured out how to get a decent 60ft time with shallow staging. This time I figured I'd prepair myself better so I dropped my front tires to 25psi and removed items in my trunk. I also changed out the Bosch Platinum 4's with NGK-Vpower and there doesn't seem to be a difference running through the gears, only at lower rpms if even slightly. I only ran a total of 5 times, two runs where I actually didn't misshift unfortunately. I couldn't for the life of me find 3rd gear for some reason but on those runs I still scored similar 60ft times.

My best two runs:

Reaction .043
60ft 2.377
100ft 0.000
1/8 9.998
MPH 71.612
1000FT 12.985
1/4mile 15.497
MPH 90.114

Reaction .014
60ft 2.273
100ft 0.000
1/8mile 9.921
MPH 71.950
1/4mile 15.312
MPH 90.806

How much could that 28-33mph headwind effect my times, especially my trap? I couldn't get above 91mph like I have in the past.

Launching techniques 2,500rpm slip clutch. I shallow staged letting out the clutch to get the car moving without chirping on the last yellow light and s split second later I let out the clutch quicker, getting off the clutch at I would say 2,800-2,900rpm to get a nice squeal and went WOT without traction issues.
Old May 14, 2005 | 08:13 PM
  #2  
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From: Montreal, Qc, Canada
Nice reaction times. I need to get consistant ones in the .000-.050 range for bracket racing.

Looks like the headwind was setting you back about 1 mph. You could do 15.0-15.1 the way you drive. You second time is similar to a run I made when I was stock. 2.264 60' and a 92.05 mph trap speed resulted in a 15.07 with a sh*tty, way too low 2-3 shift. a 2.300 60' and a 91.78 mph trap speed resulted in a 15.00 with good shifts. Pull that 2.27 again and with a very high 91 or low 92 mph trap speed it would be possible to see a 14.99.

My launch technique was a 1,800 rpm granny clutch dump, which netted consistant 2.30-2.35 with the 2.26 being a fluke. It also resulted in a .022 R/T and quite a few in the .040-.080 range. I shift at redline in first and gradually lower for the rest of the shifts.
Old May 14, 2005 | 09:23 PM
  #3  
Loe max's Avatar
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From: sarasota FL
I try to land my shift points at indicated:

6,600rpm 1-2
6,300rpm 2-3
6,200rpm 3-4

It doesn't make a difference if I shift or leave it in third but I normally shift to 4th.
Old May 21, 2005 | 05:05 PM
  #4  
fmaru's Avatar
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i shift to 4th as well and I have more success that way
Old May 22, 2005 | 09:33 PM
  #5  
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From: Northfield, IL
those are your stock times? not bad at all. I dont shift into 4th, but i may try that next time
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