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2Addicts | BMW 2-Series forum Technical Topics B58 (M240i) Engine, Transmission, Exhaust, Tuning M140i v M2 dyno

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      12-22-2016, 01:14 AM   #1
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M140i v M2 dyno

From Evolve - Wheel Power




Taken from this thread

http://www.babybmw.net/forum/viewtopic.php?f=74&t=93627
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      12-22-2016, 10:08 AM   #2
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My M240i made 310hp and 330ft/lbs on the dynojet stock. I haven't seen many other dyno results.
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      12-22-2016, 01:10 PM   #3
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Thanks for this. So with drive train loss at 15% this would be 352 HP and 423 TQ?

Wow!

Pat
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      12-22-2016, 04:41 PM   #4
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Quote:
Originally Posted by jettison View Post
My M240i made 310hp and 330ft/lbs on the dynojet stock. I haven't seen many other dyno results.
That's interesting because I've seen many Dynojets of M235's making 305-310whp and 320-330wtq stock.
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      12-22-2016, 08:37 PM   #5
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Comparing dynos of cars from different days, on different dynos is pointless. Unless the dynos were back to back on the same day on the same dyno you're pissing up a rope.

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Originally Posted by XutvJet View Post
That's interesting because I've seen many Dynojets of M235's making 305-310whp and 320-330wtq stock.
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      12-22-2016, 10:45 PM   #6
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Sure, but I've been dynoing cars since the late 1990s and have found that Dynojets are pretty dang consistent across models. I
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      12-23-2016, 02:40 AM   #7
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Quote:
Originally Posted by Fasteddy1 View Post
Thanks for this. So with drive train loss at 15% this would be 352 HP and 423 TQ?

Wow!

Pat
Flywheel



368BHP and ~400-420lbft - not bad straight out of the box
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      12-23-2016, 01:28 PM   #8
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Quote:
Originally Posted by WolfGTI View Post
Comparing dynos of cars from different days, on different dynos is pointless. Unless the dynos were back to back on the same day on the same dyno you're pissing up a rope.
+1
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      12-28-2016, 01:08 PM   #9
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Anyone dyno a JB4 on the 240 yet?
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      12-31-2016, 10:27 AM   #10
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Quote:
Originally Posted by DS_BMW View Post
Anyone dyno a JB4 on the 240 yet?
A few but a chap here in the UK has vboxed his m140i AT on 99ron pump fuel with and without jb4 map 2

Stock m140i AT times

60-100mph - 5.2 seconds
100-200kph - 10.6 seconds

JB4 map 2

60-100mph - 4.2 seconds
100-200kph 8.1

100-200kph @ 8.1 seconds vbox graph below



Taken from this thread

http://www.babybmw.net/forum/viewtop...t=120#p1208022

Given that his stock b58 car jb4 map 2 is quicker than my fbo n55 car on map 6 says a lot for b58 potential....

BP
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