Not joined yet? Register for free and enjoy features such as alerts, private messaging and viewing latest posts and topics.

35iS overboost?

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
Post Reply
Busterboo
Senior Member
Senior Member
Posts: 2798
Joined: Sun Nov 20, 2016 2:49 am

35iS overboost?

Post by Busterboo » Tue Apr 11, 2017 10:08 pm

"The BMW E89 Z4 35is comes exclusively with a computer-controlled overboost function. The boost function activates after every gear change with full throttle, and lasts for 7 seconds between 1500 and 4500rpm. During that time frame, the car will have reached 500Nm of torque for 1-2 seconds, an increase of 50Nm (37lb-ft) over the 450Nm (332lb-ft) without overboost. The full 500Nm comes in 3rd-7th gear only."

So, when you floor it, for 2 of the 7 seconds of overboost in 3rd-7th gear, it produces 500Nm?
Vidi, vici, veni

User avatar
Smartbear
Lifer
Lifer
Posts: 13685
Joined: Wed Feb 05, 2014 6:54 pm
Location: a barn in Somerset

35iS overboost?

Post by Smartbear » Tue Apr 11, 2017 11:32 pm

Yes :)
Rob
Image

e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold

User avatar
alex
Member
Member
Posts: 79
Joined: Thu Oct 07, 2010 6:39 pm
Location: Southerner in Aberdeen

35iS overboost?

Post by alex » Wed Apr 12, 2017 10:47 am

Image
Don't wish it was easier, wish you were better
Image
35iS - Space grey, red leather and 19" 326Ms - now gone to a fellow forum member

Z4M-2006
Lifer
Lifer
Posts: 7020
Joined: Fri Jun 29, 2012 7:53 am
Location: High Peak,Derbyshire.

35iS overboost?

Post by Z4M-2006 » Wed Apr 12, 2017 6:51 pm

Just get it mapped.....

600nm.... :thumbsup:

User avatar
Chris_D
Lifer
Lifer
Posts: 6615
Joined: Thu Apr 21, 2016 11:41 pm
Location: Mostly Holland. Sometimes UK.

35iS overboost?

Post by Chris_D » Wed Apr 12, 2017 7:09 pm

image.jpeg
image.jpeg (111.53 KiB) Viewed 770 times
E85 3.0i roadie (03) 'Benny'. E93 320d M-Sport Cabrio (11) 'Bob'.
Image
'Always different, always the same.' John Peel on The Fall.

User avatar
Nanu
Lifer
Lifer
Posts: 3911
Joined: Mon Dec 03, 2012 4:47 pm
Location: Sunderland

35iS overboost?

Post by Nanu » Wed Apr 12, 2017 7:52 pm

Busterboo wrote: Tue Apr 11, 2017 10:08 pm "The BMW E89 Z4 35is comes exclusively with a computer-controlled overboost function. The boost function activates after every gear change with full throttle, and lasts for 7 seconds between 1500 and 4500rpm. During that time frame, the car will have reached 500Nm of torque for 1-2 seconds, an increase of 50Nm (37lb-ft) over the 450Nm (332lb-ft) without overboost. The full 500Nm comes in 3rd-7th gear only."

So, when you floor it, for 2 of the 7 seconds of overboost in 3rd-7th gear, it produces 500Nm?
I don't understand any of that :dizzy: :scratchhead:
G29 M30i M Sport San Francisco Red

Previous
E89 35is Valencia Orange
E89 28i Crimson
E89 25i White

Busterboo
Senior Member
Senior Member
Posts: 2798
Joined: Sun Nov 20, 2016 2:49 am

35iS overboost?

Post by Busterboo » Wed Apr 12, 2017 8:39 pm

:D Neither do I, really.
Vidi, vici, veni

User avatar
Smartbear
Lifer
Lifer
Posts: 13685
Joined: Wed Feb 05, 2014 6:54 pm
Location: a barn in Somerset

35iS overboost?

Post by Smartbear » Wed Apr 12, 2017 8:55 pm

You temporarily get higher boost/power, as mentioned already-get it remapped & have even more :P
Rob
Image

e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold

Busterboo
Senior Member
Senior Member
Posts: 2798
Joined: Sun Nov 20, 2016 2:49 am

35iS overboost?

Post by Busterboo » Wed Apr 12, 2017 9:01 pm

Chris_D
Image

Double Dutch.
Vidi, vici, veni

User avatar
Nanu
Lifer
Lifer
Posts: 3911
Joined: Mon Dec 03, 2012 4:47 pm
Location: Sunderland

35iS overboost?

Post by Nanu » Thu Apr 13, 2017 7:42 pm

I think it means it sounds loud and goes quick?
G29 M30i M Sport San Francisco Red

Previous
E89 35is Valencia Orange
E89 28i Crimson
E89 25i White

Post Reply