1/4 passes

32valves · 03-29-2015, 06:59 PM

went to the track today at m.i.r.
i was hoping for a quicker time.
but it did the same as last year
13.4@103 and the jbd on same setting but i am on h&r springs
and on 275 tires instead of 255 on the rears.

Hoooper · 03-29-2015, 08:16 PM

13.4 on just jbd is probably about right depending on conditions. Is it 100% or something lower?

32valves · 03-30-2015, 02:47 AM

about 80%, if i go 100% it will start throwing c.e.l.'s.

32valves · 03-30-2015, 02:50 AM

last time i was at the track the ambient was twice as warm. i was just hoping for a 10th or two quicker.

command_liner · 03-30-2015, 03:39 PM

Quote:

Originally Posted by 32valves

last time i was at the track the ambient was twice as warm. i was just hoping for a 10th or two quicker.

Mass airflow work is done in Kelvins, not in F or C. So twice as warm would mean last time was about 1000F. That seems unlikely.

Recalculate the temp change in K, then note how times change.

32valves · 03-31-2015, 04:12 AM

i meant the temp at the track was 40'f compared to the 86'f from the last time i was at the track.

03-29-2015, 06:59 PM	#1
32valves Captain 114 Rep 934 Posts Drives: 2011 335d sport Join Date: Mar 2014 Location: DC area iTrader: (0)	1/4 passes went to the track today at m.i.r. i was hoping for a quicker time. but it did the same as last year 13.4@103 and the jbd on same setting but i am on h&r springs and on 275 tires instead of 255 on the rears.
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03-29-2015, 08:16 PM	#2
Hoooper Colonel 213 Rep 2,210 Posts Drives: 335D Join Date: Jun 2013 Location: Petaluma, CA iTrader: (0)	13.4 on just jbd is probably about right depending on conditions. Is it 100% or something lower?
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03-30-2015, 02:47 AM	#3
32valves Captain 114 Rep 934 Posts Drives: 2011 335d sport Join Date: Mar 2014 Location: DC area iTrader: (0)	about 80%, if i go 100% it will start throwing c.e.l.'s.
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03-30-2015, 02:50 AM	#4
32valves Captain 114 Rep 934 Posts Drives: 2011 335d sport Join Date: Mar 2014 Location: DC area iTrader: (0)	last time i was at the track the ambient was twice as warm. i was just hoping for a 10th or two quicker.
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03-31-2015, 04:12 AM	#6
32valves Captain 114 Rep 934 Posts Drives: 2011 335d sport Join Date: Mar 2014 Location: DC area iTrader: (0)	i meant the temp at the track was 40'f compared to the 86'f from the last time i was at the track.
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