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In Reply to: Re: Conforti chips posted by GregK on April 13, 2000 at 10:29:20:
Posted by Sean on November 19, 1999 at 13:17:22:
For those who are interested in seeing the actual Dyno numbers here they are:
Pages 1-2 is the baseline run.
Pages 2-4 is the Jim C. modified run.
You can print this post out and compare the baseline run to the modified run by holding page 1 to 3 and 2 to 4.
Quite a difference.
Again, my 850i is stock. These are the HP and Torque numbers at the wheels. You will notice for instance that at 4200RPM
the stock HP went from 214.6 to 231.4 for a net gain of 16.8HP!! This is where driving the 850i I notice the most
improvement: The Low End.
This should take care of the questions about low end power changes etc.
Again I want to thank everyone who attended the “Ultimate Tuning Session”
OK: So you will see that we started the dyno after 4200RPM and the 850I has a rev limiter set for 5700RPM where it drops
off and we stopped the dyno (it’s really cool to look down and see your car going 176MPH even if it is on the dyno without
wind resistance!!)
You will also notice that the chart shows a baseline maximum at 240.4HP and a modified maximum at 257.5HP. The actual
chart graph shows 242.4HP and 259.5HP due to the 100RPM interval that the run-time chart (below) shows.
Here are the numbers:
CALL DYNOLAB, INC (678)560 C Page 1 13 November 1999
Name: SEAN.002
Title: 92 850i
Run Date and Time: 11/13/99 5:32:26 PM
Acceleration from 3000 to 6000 RPM, interval = 100 RPM
Absolute barometric pressure : 29.05 in.Hg.
Vapor pressure : 0.37in.Hg.
Intake air temperature . 77.OF
Gear Ratio : 35.73 RPM/MPH
Correction Factor : 1.02 SAE
Column Max 240.4 269.4
RPM POWER TORQUE
3000 N/A N/A
3100 N/A N/A
3200 N/A N/A
3300 N/A N/A
3400 N/A N/A
3500 N/A N/A
3600 N/A N/A
3700 N/A N/A
3800 N/A N/A
3900 N/A N/A
4000 N/A N/A
4100 N/A N/A
4200 214.6 268.4
4300 219.2 267.8
4400 221.7 264.7
4500 230.8 269.4
4600 232.6 265.6
4700 234.5 262.1
4800 238.9 261.4
4900 240.4 257.7
5000 238.7 250.8
5100 237.0 244.0
5200 231.7 234.1
5300 229.6 227.5
5400 219.9 213.9
5500 216.5 206.7
5600 215.2 201.9
5700 126.4 116.5
5800 N/A N/A
5900 N/A N/A
6000 N/A N/A
CALL DYNOLAB, INC (678) 560 C Page 2 13 November 1999
Column Mm
126.4 116.5
Column Average
221.7 238.3
CALL DYNOLAB, INC (678) 560 C Page 3
13 November 1999
Name: SEAN.007
Title: 92 850i
Run Date and Time: 11/13/99 6:37:30 PM
Acceleration from 3000 to 6000 RPM, interval = 100 RPM
Absolute barometric pressure : 29.06 in.Hg.
Vapor pressure : 0.37in.Hg.
Intake air temperature . 75.OF
Gear Ratio : 35.89 RPM/MPH
Correction Factor : 1.02 SAE
RPM POWER TORQUE
3000 N/A N/A
3100 N/A N/A
3200 163.3 268.0
3300 171.1 272.3
3400 178.5 275.8
3500 180.3 270.6
3600 183.4 267.5
3700 189.3 268.6
3800 196.9 272.1
3900 205.1 276.2
4000 214.0 280.9
4100 223.0 285.7
4200 231.4 289.4
4300 236.2 288.5
4400 240.0 286.5
4500 244.3 285.2
4600 246.1 281.0
4700 249.4 278.7
4800 252.0 275.7
4900 254.1 272.3
5000 254.9 267.7
5100 256.5 264.1
5200 257.5 260.1
5300 255.5 253.2
5400 253.5 246.6
5500 253.0 241.6
5600 253.8 238.1
5700 166.4 153.3
5800 N/A N/A
5900 N/A N/A
6000 N/A N/A
Column Max
257.5 289.4
CALL DYNOLAB, INC (678) 560 C Page 4 13 November1999
Column Mm
163.3 153.3
Column Average
223.4 266.1
Sean
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