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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > JB4 autotune dyno (02/21 firmware)



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      02-28-2011, 01:27 AM   #1
Rotary Rasp
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JB4 autotune dyno (02/21 firmware)

91 octane, DCI and gutted secondary cats. 325whp and 363wtq

did a baseline of 270hp right after these two pulls. (JB4 Map 0)
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      02-28-2011, 01:33 AM   #2
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Good numbers, should change the smoothing to 5 to make a cleaner chart.. What temp was it out?
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      02-28-2011, 01:37 AM   #3
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68 degrees in the shop
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      02-28-2011, 01:58 AM   #4
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Great numbers!
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      02-28-2011, 04:11 AM   #5
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Good #'s for our shitty 91 octane
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      02-28-2011, 05:38 AM   #6
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Quote:
Originally Posted by mazdaspeed6 View Post
Good numbers, should change the smoothing to 5 to make a cleaner chart.. What temp was it out?
Smoothing is at 5....but im not even going to get into it.
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      02-28-2011, 06:04 AM   #7
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Quote:
Originally Posted by mazdaspeed6 View Post
Good numbers, should change the smoothing to 5 to make a cleaner chart.. What temp was it out?
Increase the smoothing? Why so you can make it look better than it is? That is not a smooth curve. Draw your own conclusions from that

I'm personally a little shocked to see a 16+ afr....
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      02-28-2011, 09:44 AM   #8
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Why do people keep mentioning autotuning with JB4....what exactly is it "autotuning?"
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      02-28-2011, 11:24 AM   #9
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The autoPID system hadn't quite smoothed out the boost curve yet, or perhaps autoPID reacts differently on the dyno, but overall output is about what you'd expect for 91.

Mike
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      02-28-2011, 05:39 PM   #10
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well, the car drives great.... 2nd gear is a tire melter.
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      02-28-2011, 07:36 PM   #11
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Quote:
Originally Posted by Rotary Rasp View Post
well, the car drives great.... 2nd gear is a tire melter.

good

im personally more interested in seat of the pants feel as long as the data shows the car is happy as well.
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      02-28-2011, 08:01 PM   #12
Rotary Rasp
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correction, this was with 2/21 firmware.
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      02-28-2011, 08:03 PM   #13
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NIce #s
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      02-28-2011, 08:18 PM   #14
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Very nice numbers, congrats.. 55WHP gain on 91 octane is nice.

Map5 autotuning might not be dyno glory maps, but it feels really good on the road after letting it adapt with a few WOT.
I went from Map2 to Map5 and after a while you realize that on the road, its smoother, more useful/powerful and alot more consistent!
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      03-02-2011, 04:26 PM   #15
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Added better pics and a baseline dyno.
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      03-03-2011, 06:48 PM   #16
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awesome numbers rodger, can't wait for this saturday.
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