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
 
BPM
Post Reply
 
Thread Tools Search this Thread
      09-12-2019, 08:26 AM   #1
Nisfro98
Private
Nisfro98's Avatar
10
Rep
52
Posts

Drives: Mazda3
Join Date: Aug 2019
Location: KY

iTrader: (0)

How to identify a tune

Im looking at this e92 for sale and just learned from the PPI it has a aftermarket race headers and cat delete with stock muffler so rear o2 senors are still there. Also the inspector said the faults are being blocked which I suspect is some aftermarket tune. Im not familiar with tunes on these e9xs but is there some way to find out what is has? The guy said it bogs down until higher rpm and then gets going. Not sure if thats by design or something not done right with the modifications. I only test drove one of these (there are not many e9x m3s around here. Sadly EAG owns them all) and it was a DCT but I didnt notice any bogging.
Appreciate 0
      09-12-2019, 01:19 PM   #2
ohmygodzirra
Enlisted Member
ohmygodzirra's Avatar
United_States
6
Rep
46
Posts

Drives: BMW E92 M3, Honda S2000
Join Date: Jun 2019
Location: Long Beach, CA

iTrader: (0)

no possible way. most tuners require proof of purchase from original owner before they can re-tune. which seems like you wont be able to get. so you'll either pass on the car and find something else. or get a new tune yourself and enjoy it and deal with the headaches that might come up later.
__________________
Pray to god of Bomex, I hope your speed over the rival !!
Appreciate 0
      09-12-2019, 02:54 PM   #3
dparm
World's greatest HPDE driver
dparm's Avatar
United_States
2287
Rep
7,285
Posts

Drives: C7 Corvette Grand Sport
Join Date: Jun 2013
Location: Dallas, TX

iTrader: (1)

Post up the car, if you can. Maybe someone on here will recognize it.
__________________
Now: 2017 Corvette Grand Sport
Past: 2011.5 M3 sedan ZCP
Appreciate 0
      09-13-2019, 05:51 AM   #4
randrews15
First Lieutenant
randrews15's Avatar
United_States
168
Rep
325
Posts

Drives: 2012 E93 M3 Le Mans Blue
Join Date: Nov 2012
Location: Parrish, FL

iTrader: (1)

It really shouldn't bog down in the lower RPMs until it gets going. Most tunes bring life to the motor especially in the lower RPMs. These cars stock are known to not hit peak torque until further up in the RPM range, but all the mods should make it more responsive. I'd talk to him and see about a burble tune being part of the aftermarket tune he purchased. A burble dumps raw fuel into the combustion chamber at certain times to make the sound and maybe coating the plugs with carbon, which maybe affecting their performance. Just a thought to consider. Burbles can burn up O2 sensors which can affect performance, but that's assuming he has a burble tune.
Appreciate 0
      09-13-2019, 07:41 AM   #5
Nisfro98
Private
Nisfro98's Avatar
10
Rep
52
Posts

Drives: Mazda3
Join Date: Aug 2019
Location: KY

iTrader: (0)

Quote:
Originally Posted by randrews15 View Post
It really shouldn't bog down in the lower RPMs until it gets going. Most tunes bring life to the motor especially in the lower RPMs. These cars stock are known to not hit peak torque until further up in the RPM range, but all the mods should make it more responsive. I'd talk to him and see about a burble tune being part of the aftermarket tune he purchased. A burble dumps raw fuel into the combustion chamber at certain times to make the sound and maybe coating the plugs with carbon, which maybe affecting their performance. Just a thought to consider. Burbles can burn up O2 sensors which can affect performance, but that's assuming he has a burble tune.
I thought it might have burble but I dont think the dealer would know that.
Appreciate 0
      09-13-2019, 01:34 PM   #6
yidgyi
///M
yidgyi's Avatar
United_States
209
Rep
702
Posts

Drives: 2013 E92 M3 ZCP
Join Date: Oct 2015
Location: Northern VA

iTrader: (0)

Email all the big tuners your VIN and see if it pops up in their system.
__________________
Follow me on IG: dre.pt
Appreciate 0
      09-13-2019, 02:29 PM   #7
randrews15
First Lieutenant
randrews15's Avatar
United_States
168
Rep
325
Posts

Drives: 2012 E93 M3 Le Mans Blue
Join Date: Nov 2012
Location: Parrish, FL

iTrader: (1)

Quote:
Originally Posted by Nisfro98 View Post
Quote:
Originally Posted by randrews15 View Post
It really shouldn't bog down in the lower RPMs until it gets going. Most tunes bring life to the motor especially in the lower RPMs. These cars stock are known to not hit peak torque until further up in the RPM range, but all the mods should make it more responsive. I'd talk to him and see about a burble tune being part of the aftermarket tune he purchased. A burble dumps raw fuel into the combustion chamber at certain times to make the sound and maybe coating the plugs with carbon, which maybe affecting their performance. Just a thought to consider. Burbles can burn up O2 sensors which can affect performance, but that's assuming he has a burble tune.
I thought it might have burble but I dont think the dealer would know that.
Take the car out and rev it past 4K and let off the gas and see if it burbles is a fun way to do it.
Appreciate 0
      09-13-2019, 05:13 PM   #8
R-35
Enlisted Member
26
Rep
38
Posts

Drives: 2011 BMW M3
Join Date: Jul 2017
Location: Ontario, Canada

iTrader: (0)

I don't know about engine tunes but you can tell if it has a GTS DCT tune because when you start the car it will always start in the automatic Drive (D) mode, instead of the paddle shifter mode.

Also engine tunes usually get rid of the bogging issue that happens at low RPMs, so if the car you drove bogs at low RPMs, chances are that it has no engine tune or maybe something else is wrong.
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 07:49 AM.




m3post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, 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