BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications
 
GTB Performance
Post Reply
 
Thread Tools Search this Thread
      03-04-2013, 06:11 PM   #23
lve2xlr8
Captain
lve2xlr8's Avatar
United_States
18
Rep
854
Posts

 
Drives: '11 m3
Join Date: Aug 2008
Location: Los Angeles

iTrader: (7)

Quote:
Originally Posted by happos2 View Post
No. 30k - 37K miles. Manual says 37k.

Either drive or ride with a fellow M3 person...see if you can tell a difference. at 280 whp, you should be able to.
Just took my car in for service at 28k miles and they did the plugs and diff fluid in addition to the oil.
__________________
'11 M3
'00 M5 - Sold
Appreciate 0
      03-04-2013, 06:47 PM   #24
happos2
Dingleberries
18
Rep
1,182
Posts

 
Drives: Gray E92 M3
Join Date: May 2012
Location: Indiana

iTrader: (3)

Quote:
Originally Posted by lve2xlr8 View Post
Just took my car in for service at 28k miles and they did the plugs and diff fluid in addition to the oil.
A little early on the plugs, but it can't hurt. Listen to Sal and Andrew...very knowledgeable. Post the dyno!
Appreciate 0
      03-04-2013, 06:56 PM   #25
M3Denver
Lieutenant
M3Denver's Avatar
7
Rep
423
Posts

 
Drives: 2011 BMW M3
Join Date: Mar 2012
Location: Denver CO

iTrader: (0)

software, plugs, plus shit dyno = potential for bad numbers.
Appreciate 0
      03-04-2013, 09:22 PM   #26
kerkiraios00
Lieutenant
kerkiraios00's Avatar
United_States
9
Rep
476
Posts

 
Drives: '11 Jerez E90 M3
Join Date: Dec 2011
Location: Queens,NY

iTrader: (0)

Quote:
Originally Posted by Sal@Evolve View Post
Post the graph with the correction factor.
A dyno can give wild readings if the SAE CF is very negative and over correcting.

Why does everyone think upgrading the software will restore power? This is a myth.
done!! but i dont see any SAE on the dyno sheet.. i took a picture of it sorry hope its readable my scanner is down!!
Quote:
Originally Posted by M3Denver View Post
software, plugs, plus shit dyno = potential for bad numbers.
my boy was telling maybe his dyno could be retarted?? He told me to try another dyno?

i know it says 276 but that was the second run.. the last two where exactly 287 dont know why it didnt show it on the graph? we did a total of 4 runs bc the first time they screwed up and used 4th gear and realized to use 5th.. Thanks for your time guys!!!
__________________
11 E90 M3 Jerez BLK Metallic | EXT FOX RED NL | ZCP | MEISTERSCHAFT GT | LUX H8 V4 | HRE P43SC

07 JEEP PATRIOT LIMITED BLK- STU COILS 2.5' lift- 16' MOAB WHEELS
Appreciate 0
      03-04-2013, 09:32 PM   #27
SGMe90
tuningtechfs tuned
SGMe90's Avatar
United_States
4
Rep
302
Posts

 
Drives: 08 SGM e90 M3, 6mt
Join Date: Dec 2010
Location: MD

iTrader: (4)

They did mine in 4th gear. I don't know what I would have gotten before the update but with the update and k&n filters, I got 353. You can search for my thread. Sorry I'm using my phone to post this but search for 'got myself tuned' and you'll see the progression. And your tq just keeps dropping. Very weird
__________________
Drives: 08 M3, third pedal baby
previous: 07 e93 335i (jb4)
Appreciate 0
      03-04-2013, 10:18 PM   #28
bradleyland
TIM YOYO
United_States
21
Rep
1,776
Posts

 
Drives: 2013 M3
Join Date: Jun 2010
Location: Vero Beach, FL

iTrader: (0)

Garage List
I'd try to hit up another dyno to cross check the results. There are so many factors that can affect dyno readings, it's not worth getting to freaked out over one instance.
__________________
His: 2013 ///M3 - Interlagos Blue Black M-DCT
Hers: 2013 X3 28i - N20 Mineral Silver / Sand Beige / Premium, Tech
Past: 2010 135i - TiAg Coral Red 6MT ///M-Sport
Appreciate 0
      03-04-2013, 10:26 PM   #29
kerkiraios00
Lieutenant
kerkiraios00's Avatar
United_States
9
Rep
476
Posts

 
Drives: '11 Jerez E90 M3
Join Date: Dec 2011
Location: Queens,NY

iTrader: (0)

Quote:
Originally Posted by bradleyland View Post
I'd try to hit up another dyno to cross check the results. There are so many factors that can affect dyno readings, it's not worth getting to freaked out over one instance.
True and thats what i will do bc im starting to think theres something wrong with my car..does anyone know of another mustang dyno in ny area??
__________________
11 E90 M3 Jerez BLK Metallic | EXT FOX RED NL | ZCP | MEISTERSCHAFT GT | LUX H8 V4 | HRE P43SC

07 JEEP PATRIOT LIMITED BLK- STU COILS 2.5' lift- 16' MOAB WHEELS
Appreciate 0
      03-05-2013, 12:31 AM   #30
NikB316
Lieutenant
NikB316's Avatar
14
Rep
596
Posts

 
Drives: 2014 M5 Competition
Join Date: Aug 2007
Location: Somerset County, New Jersey

iTrader: (4)

There's a WinnFlow dyno at MaximumPSI in Linden, NJ which reads similar to the Mustang dyno. There's also a DynoJet in Garwood, NJ at Yosolo. I haven't been to their DynoJet yet but was actually planning on going this week to see how it differs from the MaximumPSI dyno.
__________________

2014 M5 Competition Alpine/Sakhir
BMS Tune. Undercover Performance Custom Downpipes & Connector. H&R 10mm Spacers. BMW CF Rear Spoiler. IND Cosmetics. ALP & BEL Radar & Laser.
2011 Space Grey E92 M3 AA Gen 2 Lvl 3 586whp 398wtq SAE (sold)
Appreciate 0
      03-05-2013, 01:10 AM   #31
M3takesNYC
Banned
8
Rep
426
Posts

 
Drives: m3
Join Date: Feb 2013
Location: NYC

iTrader: (0)

Guys look at the curve. YOu will realize its not a dyno problem, its an engine problem. Look at that torque curve take a nose dive!! My guess is loss of compression and needs a compression test.

That is just plunging in torque. It should be a flat torque line until the last 1k
Appreciate 0
      03-05-2013, 02:15 AM   #32
Sal@Evolve
BimmerPost Supporting Vendor
24
Rep
1,063
Posts


 
Drives: Slow
Join Date: Feb 2008
Location: Luton, Bedfordshire

iTrader: (0)

Quote:
Originally Posted by M3takesNYC View Post
Guys look at the curve. YOu will realize its not a dyno problem, its an engine problem. Look at that torque curve take a nose dive!! My guess is loss of compression and needs a compression test.

That is just plunging in torque. It should be a flat torque line until the last 1k
You should post more often and especially in threads like this.

Thank you.
Appreciate 0
      03-05-2013, 02:42 AM   #33
Dave07997S
Colonel
37
Rep
2,555
Posts

 
Drives: 2013 BMW M3 ZCP Coupe
Join Date: May 2009
Location: Playa del Rey, CA

iTrader: (1)

Something doesn't look right...the car only got tested to 6800rpm, also it made almost 267 ft/lbs of torque which is actually a pretty damm good number especially on a Mustang dyno, but this dyno just seems mangled.
__________________
2013 M3 Coupe-MR/BLK ZCP, ACM test pipes, BPM Stg2 dev. tune and Megan catback, AFE Stg2. with C/F elbow
Previous rides: 2011 M3 Coupe-MR/Blk
2007 Porsche 997C2S Speed Yellow/Blk sport seats
2004 BMW M3 Imola/Blk
Appreciate 0
      03-05-2013, 03:57 AM   #34
Sal@Evolve
BimmerPost Supporting Vendor
24
Rep
1,063
Posts


 
Drives: Slow
Join Date: Feb 2008
Location: Luton, Bedfordshire

iTrader: (0)

Quote:
Originally Posted by Dave07997S View Post
Something doesn't look right...the car only got tested to 6800rpm, also it made almost 267 ft/lbs of torque which is actually a pretty damm good number especially on a Mustang dyno, but this dyno just seems mangled.
Was waiting for somone to point that out.
Appreciate 0
      03-05-2013, 07:54 AM   #35
Iplayedmyself
Not fast enough if everything isnt a blurr
United_States
0
Rep
99
Posts

 
Drives: was-08 e90 335xi, now-08 e90m3
Join Date: Jun 2011
Location: NY

iTrader: (0)

I have an 08 e90 with 38xxx i havent changed plugs and im bone stock and im in queens literally 20 mins from westbury if you want to meet up so you dont have to compare to an e39 just hit me up and we will work something out.
Appreciate 0
      03-05-2013, 08:13 AM   #36
happos2
Dingleberries
18
Rep
1,182
Posts

 
Drives: Gray E92 M3
Join Date: May 2012
Location: Indiana

iTrader: (3)

Torque looks really funky...
Appreciate 0
      03-05-2013, 09:33 AM   #37
kerkiraios00
Lieutenant
kerkiraios00's Avatar
United_States
9
Rep
476
Posts

 
Drives: '11 Jerez E90 M3
Join Date: Dec 2011
Location: Queens,NY

iTrader: (0)

Quote:
Originally Posted by Iplayedmyself View Post
I have an 08 e90 with 38xxx i havent changed plugs and im bone stock and im in queens literally 20 mins from westbury if you want to meet up so you dont have to compare to an e39 just hit me up and we will work something out.
I'm not from westbury I'm from queens too fresh meadows to be exact.., I just drove out there bc that was where the dyno was. Sure if you don't mind maybe we can thanks..

Wow def missed it that he didn't rev it out all the way? WTF? The torque is a little weird.. I also noticed the a/f ratio 9.5?? I'm running to rich but that's kinda impossible would I see blk smoke out my muffler? Honestly the car feels strong doesn't feel like any missing power..

Thank you nikb316 for the dyno locations.. What's a Winn Flow dyno awd dyno also?
__________________
11 E90 M3 Jerez BLK Metallic | EXT FOX RED NL | ZCP | MEISTERSCHAFT GT | LUX H8 V4 | HRE P43SC

07 JEEP PATRIOT LIMITED BLK- STU COILS 2.5' lift- 16' MOAB WHEELS
Appreciate 0
      03-05-2013, 09:38 AM   #38
kerkiraios00
Lieutenant
kerkiraios00's Avatar
United_States
9
Rep
476
Posts

 
Drives: '11 Jerez E90 M3
Join Date: Dec 2011
Location: Queens,NY

iTrader: (0)

Quote:
Originally Posted by M3takesNYC View Post
Guys look at the curve. YOu will realize its not a dyno problem, its an engine problem. Look at that torque curve take a nose dive!! My guess is loss of compression and needs a compression test.

That is just plunging in torque. It should be a flat torque line until the last 1k
If there was a misfire or a bad O2 sensor would I get some kind of faulty code??
__________________
11 E90 M3 Jerez BLK Metallic | EXT FOX RED NL | ZCP | MEISTERSCHAFT GT | LUX H8 V4 | HRE P43SC

07 JEEP PATRIOT LIMITED BLK- STU COILS 2.5' lift- 16' MOAB WHEELS
Appreciate 0
      03-05-2013, 10:39 AM   #39
M3takesNYC
Banned
8
Rep
426
Posts

 
Drives: m3
Join Date: Feb 2013
Location: NYC

iTrader: (0)

Quote:
Originally Posted by kerkiraios00 View Post
If there was a misfire or a bad O2 sensor would I get some kind of faulty code??
Losing compression can sneak up on you by decievingly dropping power without necessarily causing problems or codes. You simply are losing energy if you lose CR.

Its also hard to say your car "feels like its strong" if you have nothing to compare it to. 300 hp is still pretty strong compared to a lot of cars but not when compared to a true 420 hp.

I hope everything is absolutely fine and it was just a total fluke. Although I really don't know how you can explain a funky torque curve SHAPE. Peak numbers or max numbers can be explained by a poorly caliberated dyno but the shape of the curve in my view should not be that deformed if its purely a dyno
Appreciate 0
      03-05-2013, 11:17 AM   #40
kerkiraios00
Lieutenant
kerkiraios00's Avatar
United_States
9
Rep
476
Posts

 
Drives: '11 Jerez E90 M3
Join Date: Dec 2011
Location: Queens,NY

iTrader: (0)

Quote:
Originally Posted by M3takesNYC View Post
Losing compression can sneak up on you by decievingly dropping power without necessarily causing problems or codes. You simply are losing energy if you lose CR.

Its also hard to say your car "feels like its strong" if you have nothing to compare it to. 300 hp is still pretty strong compared to a lot of cars but not when compared to a true 420 hp.

I hope everything is absolutely fine and it was just a total fluke. Although I really don't know how you can explain a funky torque curve SHAPE. Peak numbers or max numbers can be explained by a poorly caliberated dyno but the shape of the curve in my view should not be that deformed if its purely a dyno
What causes loss of compression?! What do you suggest?? I run another m3 or get the compression checked out?
__________________
11 E90 M3 Jerez BLK Metallic | EXT FOX RED NL | ZCP | MEISTERSCHAFT GT | LUX H8 V4 | HRE P43SC

07 JEEP PATRIOT LIMITED BLK- STU COILS 2.5' lift- 16' MOAB WHEELS
Appreciate 0
      03-05-2013, 11:34 AM   #41
j2m
Colonel
j2m's Avatar
Canada
48
Rep
2,452
Posts

 
Drives: '11 E92 M3 DCT
Join Date: Jun 2011
Location: Calgary, Ab

iTrader: (8)

Garage List
2011 BMW E92 M3  [5.00]
Quote:
Originally Posted by kerkiraios00 View Post
What causes loss of compression?! What do you suggest?? I run another m3 or get the compression checked out?
Neither
Take it to a shop that knows WTF they are doing.
__________________

11' E92 M3 Space Grey | DCT | ESS VT2- 625 | Gintani Race (valved) + Quad Res Catless X-Pipe | KW Sleeve's | GC Camber Plates|Arkym Diffuser | Vorsteiner VRS Lip | P3 Boost Guage | Stud Conversion
PHOTO's: Click Here ESS VT2 625 PHOTOS: Click Here
Appreciate 0
      03-05-2013, 12:00 PM   #42
Dave07997S
Colonel
37
Rep
2,555
Posts

 
Drives: 2013 BMW M3 ZCP Coupe
Join Date: May 2009
Location: Playa del Rey, CA

iTrader: (1)

Its the dyno...its whacked.

Everyone wants this guy to spend money to go get a compression check and what not, yet no one notices the car was only revved to 6800rpm according to the dyno. Yet it still made 267 ft/lbs. of tq on a Mustang dyno?

To the OP, if its that important to you. Go get another dyno from another shop. The dyno you did in my eyes is whacked. These cars don't make peak hp until 8k rpm.

Dave
__________________
2013 M3 Coupe-MR/BLK ZCP, ACM test pipes, BPM Stg2 dev. tune and Megan catback, AFE Stg2. with C/F elbow
Previous rides: 2011 M3 Coupe-MR/Blk
2007 Porsche 997C2S Speed Yellow/Blk sport seats
2004 BMW M3 Imola/Blk
Appreciate 0
      03-05-2013, 12:01 PM   #43
Dave07997S
Colonel
37
Rep
2,555
Posts

 
Drives: 2013 BMW M3 ZCP Coupe
Join Date: May 2009
Location: Playa del Rey, CA

iTrader: (1)

Quote:
Originally Posted by Sal@Evolve View Post
Was waiting for somone to point that out.
Why is everyone ignoring the obvious Sal?
__________________
2013 M3 Coupe-MR/BLK ZCP, ACM test pipes, BPM Stg2 dev. tune and Megan catback, AFE Stg2. with C/F elbow
Previous rides: 2011 M3 Coupe-MR/Blk
2007 Porsche 997C2S Speed Yellow/Blk sport seats
2004 BMW M3 Imola/Blk
Appreciate 0
      03-05-2013, 12:03 PM   #44
Dave07997S
Colonel
37
Rep
2,555
Posts

 
Drives: 2013 BMW M3 ZCP Coupe
Join Date: May 2009
Location: Playa del Rey, CA

iTrader: (1)

Quote:
Originally Posted by lve2xlr8 View Post
Just took my car in for service at 28k miles and they did the plugs and diff fluid in addition to the oil.
Correct this is now done at the 30k mile mark. If you are within a few thousand miles of this mark and you bring it in for another service they go ahead and do it. Mine got done at 27k miles as well.

Dave
__________________
2013 M3 Coupe-MR/BLK ZCP, ACM test pipes, BPM Stg2 dev. tune and Megan catback, AFE Stg2. with C/F elbow
Previous rides: 2011 M3 Coupe-MR/Blk
2007 Porsche 997C2S Speed Yellow/Blk sport seats
2004 BMW M3 Imola/Blk
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
Forum Jump


All times are GMT -5. The time now is 10:56 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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