BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
M2 Technical Topics > N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > Max boost you're getting on a standard car

Post Reply
 
Thread Tools Search this Thread
      02-17-2017, 05:17 PM   #1
DivideBYZero
Never underestimate the Home-Bowl
DivideBYZero's Avatar
United Kingdom
484
Rep
821
Posts

Drives: F87 M2<E92 M3<E46 M3
Join Date: Jul 2011
Location: UK

iTrader: (0)

Garage List
Max boost you're getting on a standard car

So I'm getting a peak boost of 15.5psi.

Firstly, is this about right and secondly, what are you guys seeing on a stock motor?
__________________
2017 F87 M2, MG, M-DCT
2002 E36/7 Z3 2.2 Sport 5MT
2016 F22 M235i Coupe, MW, ZF8
Appreciate 0
      02-18-2017, 08:58 AM   #2
zenmaster
Brigadier General
United_States
1575
Rep
3,888
Posts

Drives: '17 M2
Join Date: Mar 2007
Location: Atlanta

iTrader: (1)

Quote:
Originally Posted by DivideBYZero View Post
So I'm getting a peak boost of 15.5psi.

Firstly, is this about right and secondly, what are you guys seeing on a stock motor?
A Pure rep mentioned where depending on altitude, temp, and octane you can see up to 19psi stock, as the DME targets load rather than boost. Your 15.5 is prob normal for sea level on 91. That's the same PSI Terry got on his 4/22 dyno testing.
Appreciate 0
      02-18-2017, 04:23 PM   #3
CommitConfirm
Lieutenant
United Kingdom
475
Rep
549
Posts

Drives: The Bus
Join Date: Oct 2016
Location: Berkshire

iTrader: (0)

Garage List
Interesting thread so I tested this over the last 24 hours and my Awron report Max boost in Sport+ of 1.16 bar (16.82 PSI).

MY17 6MT, ITG panel filter (HMP-795), running 99RON Shell V-Power Nitro+
Appreciate 0
      02-19-2017, 12:48 AM   #4
DivideBYZero
Never underestimate the Home-Bowl
DivideBYZero's Avatar
United Kingdom
484
Rep
821
Posts

Drives: F87 M2<E92 M3<E46 M3
Join Date: Jul 2011
Location: UK

iTrader: (0)

Garage List
Quote:
Originally Posted by CommitConfirm View Post
Interesting thread so I tested this over the last 24 hours and my Awron report Max boost in Sport+ of 1.16 bar (16.82 PSI).

MY17 6MT, ITG panel filter (HMP-795), running 99RON Shell V-Power Nitro+
Same fuel as you, only just had the run in service and using torque pro, so may be missing data. I'll have to go for a logging run.

I have an AFE Pro dry filter in the post, too.
Appreciate 0
      02-19-2017, 02:23 AM   #5
kiysersosae
Lieutenant
kiysersosae's Avatar
United Kingdom
425
Rep
565
Posts

Drives: 1M, M2CS, M3CS
Join Date: Jul 2013
Location: United Kingdom

iTrader: (0)

Quote:
Originally Posted by CommitConfirm View Post
Interesting thread so I tested this over the last 24 hours and my Awron report Max boost in Sport+ of 1.16 bar (16.82 PSI).

MY17 6MT, ITG panel filter (HMP-795), running 99RON Shell V-Power Nitro+
Can you remember what the environmental conditions were?

Thanks for info
Appreciate 0
      02-19-2017, 05:17 AM   #6
CommitConfirm
Lieutenant
United Kingdom
475
Rep
549
Posts

Drives: The Bus
Join Date: Oct 2016
Location: Berkshire

iTrader: (0)

Garage List
UK, South East, outside air temp 8C. on a dry crisp day. Did 100 miles in three chunks with max boost 1.15 bar in the AM, 1.16 in the afternoon. 1.16 in the evening. All in Sport+
Appreciate 0
      02-22-2017, 02:37 PM   #7
kiysersosae
Lieutenant
kiysersosae's Avatar
United Kingdom
425
Rep
565
Posts

Drives: 1M, M2CS, M3CS
Join Date: Jul 2013
Location: United Kingdom

iTrader: (0)

Quote:
Originally Posted by CommitConfirm View Post
UK, South East, outside air temp 8C. on a dry crisp day. Did 100 miles in three chunks with max boost 1.15 bar in the AM, 1.16 in the afternoon. 1.16 in the evening. All in Sport+
I was out tonight and put 2 clean pulls down in 3 - 4th gear both runs. I got 14psi max. Outside temperature was 4.5deg C
Appreciate 0
      02-22-2017, 03:55 PM   #8
CommitConfirm
Lieutenant
United Kingdom
475
Rep
549
Posts

Drives: The Bus
Join Date: Oct 2016
Location: Berkshire

iTrader: (0)

Garage List
What's your elevation above sea level? Manual or automatic?
Appreciate 0
      02-24-2017, 06:15 AM   #9
DivideBYZero
Never underestimate the Home-Bowl
DivideBYZero's Avatar
United Kingdom
484
Rep
821
Posts

Drives: F87 M2<E92 M3<E46 M3
Join Date: Jul 2011
Location: UK

iTrader: (0)

Garage List
Interesting, I went out for an early morning run last Sunday and the peak I got was 14.8psi, and I know I have the same conditions and altitude as CommitConfirm.

I just need to test more
__________________
2017 F87 M2, MG, M-DCT
2002 E36/7 Z3 2.2 Sport 5MT
2016 F22 M235i Coupe, MW, ZF8
Appreciate 0
      02-25-2017, 09:38 AM   #10
DivideBYZero
Never underestimate the Home-Bowl
DivideBYZero's Avatar
United Kingdom
484
Rep
821
Posts

Drives: F87 M2<E92 M3<E46 M3
Join Date: Jul 2011
Location: UK

iTrader: (0)

Garage List
15.4psi today after dropping in my AFE Pro Dry filter. Shitty weather so no Sport+ on greasy, muddy B roads. Need to do some proper dry weather pulls but that's proving difficult in Feb.
__________________
2017 F87 M2, MG, M-DCT
2002 E36/7 Z3 2.2 Sport 5MT
2016 F22 M235i Coupe, MW, ZF8
Appreciate 0
      02-25-2017, 08:32 PM   #11
kiysersosae
Lieutenant
kiysersosae's Avatar
United Kingdom
425
Rep
565
Posts

Drives: 1M, M2CS, M3CS
Join Date: Jul 2013
Location: United Kingdom

iTrader: (0)

Quote:
Originally Posted by CommitConfirm View Post
What's your elevation above sea level? Manual or automatic?
I'm about 100m above and auto

Check this
Attached Images
 

Last edited by kiysersosae; 02-25-2017 at 08:39 PM..
Appreciate 0
      03-08-2017, 04:46 PM   #12
kiysersosae
Lieutenant
kiysersosae's Avatar
United Kingdom
425
Rep
565
Posts

Drives: 1M, M2CS, M3CS
Join Date: Jul 2013
Location: United Kingdom

iTrader: (0)

Here is another graph showing max boost.. Outside temp was 7.5deg C and car was driven hard for about 15min when this was captured. I have installed the Fabspeed dp 200cel, forge intercooler and itg panel filter

I couldn't get intercooler above 26 or boost avouve 13.3psi
Attached Images
 
Appreciate 0
      03-17-2017, 01:19 PM   #13
CommitConfirm
Lieutenant
United Kingdom
475
Rep
549
Posts

Drives: The Bus
Join Date: Oct 2016
Location: Berkshire

iTrader: (0)

Garage List
Not sure what you 'Auto' guys are doing wrong.... I managed 1.35 bar (19.58 psi) in Sport+ in my 6MT today

EDIT: Have you tried redlining it to 7000-7500rpm?

Last edited by CommitConfirm; 03-17-2017 at 01:25 PM..
Appreciate 0
      03-17-2017, 03:09 PM   #14
wakeofdeath
Banned
Albania
71
Rep
198
Posts

Drives: X6M
Join Date: May 2016
Location: CT & GA

iTrader: (0)

All depends on weather/octane/variable, use to see folks running 15-16 in hotter climate and 12-14 in winter (as well as me).
Appreciate 0
      03-17-2017, 08:44 PM   #15
DivideBYZero
Never underestimate the Home-Bowl
DivideBYZero's Avatar
United Kingdom
484
Rep
821
Posts

Drives: F87 M2<E92 M3<E46 M3
Join Date: Jul 2011
Location: UK

iTrader: (0)

Garage List
Been out for a few evening runs the last couple of days. Nice and dry with cool ambient temps, BUT didn't hook up Torque...

It's feeling very strong now at 1800 miles and seems to be adapting to the AFE filter. It's certainly very whooshy and hissy now. Love it.
__________________
2017 F87 M2, MG, M-DCT
2002 E36/7 Z3 2.2 Sport 5MT
2016 F22 M235i Coupe, MW, ZF8
Appreciate 1
gavinsan149.00
      03-22-2017, 02:48 PM   #16
gavinsan
Second Lieutenant
149
Rep
244
Posts

Drives: F82 M4
Join Date: Oct 2014
Location: London

iTrader: (0)

Quote:
Originally Posted by DivideBYZero View Post
Been out for a few evening runs the last couple of days. Nice and dry with cool ambient temps, BUT didn't hook up Torque...

It's feeling very strong now at 1800 miles and seems to be adapting to the AFE filter. It's certainly very whooshy and hissy now. Love it.
May i ask how you find your M2 over the e92 m3 you had ?

Did you spec M2 in manual or dct ?
Appreciate 0
      03-22-2017, 05:29 PM   #17
DivideBYZero
Never underestimate the Home-Bowl
DivideBYZero's Avatar
United Kingdom
484
Rep
821
Posts

Drives: F87 M2<E92 M3<E46 M3
Join Date: Jul 2011
Location: UK

iTrader: (0)

Garage List
Quote:
Originally Posted by gavinsan View Post
May i ask how you find your M2 over the e92 m3 you had ?

Did you spec M2 in manual or dct ?
You may. I'm in a train right now so won't do a full comparison, I'll do that sometime tomorrow.

I went from a DCT to DCT. However I'll detail the differences in my comparison, because there are some key differences in the application.
__________________
2017 F87 M2, MG, M-DCT
2002 E36/7 Z3 2.2 Sport 5MT
2016 F22 M235i Coupe, MW, ZF8
Appreciate 0
      03-26-2017, 11:45 AM   #18
CommitConfirm
Lieutenant
United Kingdom
475
Rep
549
Posts

Drives: The Bus
Join Date: Oct 2016
Location: Berkshire

iTrader: (0)

Garage List
Managed 1.51 bar (21.9 psi) at a RWYB this morning.
Attached Images
 
Appreciate 0
      03-26-2017, 12:43 PM   #19
zenmaster
Brigadier General
United_States
1575
Rep
3,888
Posts

Drives: '17 M2
Join Date: Mar 2007
Location: Atlanta

iTrader: (1)

An interesting number would be the air flow rate. That's where power is made.
Appreciate 0
      03-26-2017, 10:49 PM   #20
toastie
Lieutenant
toastie's Avatar
United_States
189
Rep
386
Posts

Drives: e39 M5
Join Date: Aug 2016
Location: SoCal

iTrader: (0)

This thread got me interested, did a pull on the way home and hit 14.6PSI in 4th. 70F at night here in Texas. Bone stock.
Appreciate 0
      11-28-2017, 12:13 PM   #21
Mrt_M2
New Member
20
Rep
18
Posts

Drives: BMW M3
Join Date: Mar 2015
Location: Florida

iTrader: (0)

Quote:
Originally Posted by DivideBYZero View Post
So I'm getting a peak boost of 15.5psi.

Firstly, is this about right and secondly, what are you guys seeing on a stock motor?
I Have a Dinan boost controller, per that, my stock boost was around 17psi, 55F temp, little above sea level with 91Oct. and have AFE Drop in filter, 6MT

When I put it on Sport+, I get around 24.5 psi in the same conditions.

Last edited by Mrt_M2; 11-28-2017 at 03:17 PM..
Appreciate 0
      11-28-2017, 06:06 PM   #22
Bee Pee
Brigadier General
United Kingdom
1738
Rep
4,496
Posts

Drives: AW M2 DCT
Join Date: Jun 2010
Location: SW London

iTrader: (3)

Quote:
Originally Posted by CommitConfirm View Post
Managed 1.51 bar (21.9 psi) at a RWYB this morning.
Does Awron read boost pressure direct from TMAP or via canbus ?

Is HP at the crank or at the wheels ?
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 05:19 AM.




m2
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST