BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
M2 Technical Topics > N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > Active Autowerke | M2 Sebring Track Report Take 2

Post Reply
 
Thread Tools Search this Thread
      07-18-2016, 03:30 PM   #1
David@ActiveAutowerke
BimmerPost Supporting Vendor
United_States
813
Rep
526
Posts


Drives: M2
Join Date: Jan 2016
Location: Miami, FL

iTrader: (0)

Active Autowerke | M2 Sebring Track Report Take 2

BIMMERPOST
     Featured on BIMMERPOST.com
We had the M2 at Sebring for the second time yesterday and it was an interesting day to say the least.

See our first track day writeup at: http://f87.bimmerpost.com/forums/sho....php?t=1261307


The car setup was as follows:

Nitto NT05 275/35/18
BC Forged RZ38 18x10 square
BC Racing BR Type coilovers with camber plates
Motorsport Hardware 14x1.25 -> 14x1.5 conversion stud kit (highly recommended if you use an impact to remove and install wheels like I do)
Motorsport Hardware 12mm Traklite front spacers
Active Autowerke FMIC
Active Autowerke true 3.5" Downpipe
Active Autowerke complete 3.5" Exhaust system
Active Autowerke flash tune (15psi)
IND cosmetics
AWRON Vent Gauge
BMW Performance Rear Spoiler

The car was corner balanced and aligned by Apex Alignment two days before the event.

The Drive:

With the new suspension, alignment and wheel/tire setup I knew the car would be different, but I was honestly a bit skeptical because in stock form the car was so good! On the 2.5 hour drive up to the track I noticed that the steering sensitivity had increased quite a bit. The car reacted so quickly to steering input as if it was toe'd out (we set it at 0 toe). While this was a large improvement over stock I was now almost worried that the car was going to be too loose.

On track I quickly forgot my worries and after a few warm up laps I began to get comfortable. The turn-in was so amazingly sharp but not uncontrollable at all. I had read reviews about the M2 including one from Bill Auberlen and I remember him saying that instead of understeering, the car would just hold it's line and accelerate through the turn when you applied mid-corner throttle. I never experienced that with the stock M2 (probably because I tend to overdrive cars) but after a few laps with this new setup I realized that this was exactly what Bill was talking about. At the point where the throttle would usually just initiate a slide with the stock car, I found that now it would just make me go faster. When I did manage to get the back end out, it was always more of a throttle steer than a drift and the car would continue to accelerate through the slide instead of just roasting the tires without gaining speed.

The car was fast. During the morning sessions when temps were coolest we managed to trap 136.7mph on the back straight compared to the 129mph that the stock car did. Back in May going through Bishop's Bend wide open from Tower Turn was a little hairy, but doable. With the extra grip and power we were still able to hold it wide open out of Tower and around Bishop's and with the increased exit speed out of Tower we were now exiting Bishop's at 116mph compared to 111mph in the stock car. Unfortunately as the day went on the track got so hot that our speeds ended up being slower than the stock car at multiple points on the track, but the morning session was proof that the car really had improved.

Overall the car was better in every way. An already amazing car was now even easier to drive and even more importantly even more fun to drive. I do believe that a slightly stiffer spring rate all around would help take advantage of the NT05 tires that we were running, although it would be at the price of some street comfort. We do plan on running a set of the new BC DR dampers with stiffer swift springs the next time around.


Results:

The track was extremely hot. Track temps were 110*+ it was taking it's toll on the car. Fluid temps rose and the with the new sticky tires the brakes were working much harder to slow the car down.

Unfortunately the day didn't get any cooler and the best time we could put down was a 2:30.3. We dropped 1.9 seconds from our baseline back in early May when track temps were about 20 degrees cooler. At Sebring 1.9 seconds is about 375 feet (about 25 car lengths) going down the front straight which is a significant improvement, although I'm positive that with better conditions the car is capable of a mid 20 lap time. Looking back I should've suckered it up and pushed for a solid hot lap during the morning session yesterday while temps were somewhat normal.

I will say that I'm disappointed in the car's temperatures after only a few hot laps. I saw maximum temperatures of:

Oil: 259*
Water: 229*
EGT: 1762*

For the next track day we plan on changing oil to a thicker Mobil 1 Racing oil (we are currently running OEM BMW 5w-30). We will also be adding our methanol injection system as well as potentially a larger oil cooler.

Keep in mind that the conditions yesterday were extreme, and I admittedly was not being easy on the car at all. However, with 93 octane fuel and only 15psi we were seeing temps that I didn't feel comfortable running with. Thankfully the AWRON vent gauge we installed provided all of this numerical data because with the OEM cluster as my only source of information I probably would have kept driving

**We have a video of the track day in the works which will be posted once it's been edited.





Appreciate 10
Kr3st537.00
mookie45769.00
Bosozoku693.50
neo871142.00
      07-18-2016, 10:47 PM   #2
Oakleyguy
Resident Engineer
Oakleyguy's Avatar
United_States
135
Rep
748
Posts

Drives: Land Cruiser
Join Date: Oct 2008
Location: Denver, CO / Tulsa, OK

iTrader: (0)

Garage List
2014 Toyota URJ200  [0.00]
2017 BMW M2  [0.00]
2015 BMW M4  [10.00]
2005 Toyota UZJ100  [0.00]
So hot it melted your license plate holder.

I imagine you've pushed the M3/4 under comparable conditions, how were the temps holding up on the older siblings? Be a neat comparison with M3/4 'track' oriented cooling systems.
__________________
///M4 (SO/BLK/BLK) Exec, LED, Blk 19s, HK, 6MT <- SOLD
///M2 (LBB), Exec, 6MT <- SOLD
2014 Land Cruiser, Slee Sliders, OME Lift, ARB Onboard Air
European Delivery Journal & F8X Door Rattle Fix
Machine Shop Directory - www.mfgcenter.com
Appreciate 3
Powaup1252.00
      07-19-2016, 09:07 AM   #3
omasou
Colonel
omasou's Avatar
United_States
2080
Rep
2,999
Posts

Drives: BMWs
Join Date: Apr 2016
Location: US

iTrader: (4)

Garage List
2023 BMW S1000RR  [0.50]
2022 BMW F900XR  [3.00]
2022 BMW X6 40i  [0.50]
2020 BMW M2C  [9.50]
man that's hot, to mangled a license plate frame like that
Appreciate 1
      07-19-2016, 10:22 AM   #4
chmura
Colonel
chmura's Avatar
1557
Rep
2,504
Posts

Drives: 2019 M2 Competition
Join Date: Aug 2009
Location: Orange County, California

iTrader: (1)

Larger oil cooler would be nice to develop and produce to the M2 community. Have people upgraded their engine oil coolers on M235i vehicles?
__________________
2019 M2 Competition- October 2, 2018 ED
2011 BMW M3 Sedan Alpine White
Picked up via ED 9/27/2011 & Redelivered 11/23/2011 **SOLD**
Appreciate 0
      07-19-2016, 03:44 PM   #5
David@ActiveAutowerke
BimmerPost Supporting Vendor
United_States
813
Rep
526
Posts


Drives: M2
Join Date: Jan 2016
Location: Miami, FL

iTrader: (0)

Quote:
Originally Posted by Oakleyguy View Post
So hot it melted your license plate holder.

I imagine you've pushed the M3/4 under comparable conditions, how were the temps holding up on the older siblings? Be a neat comparison with M3/4 'track' oriented cooling systems.
To be honest I've only put down a couple true "hot laps" in a F8X so I can't accurately compare it to the M2 as far as temperatures go. I do have some seat time in the older E9X M3's and those had heat issues as well.

Quote:
Originally Posted by masou View Post
man that's hot, to mangled a license plate frame like that
Yeah it was brutal. We've managed to melt one other plate frame that was on our One Lap of America E46 M3 years ago.

Quote:
Originally Posted by chmura View Post
Larger oil cooler would be nice to develop and produce to the M2 community. Have people upgraded their engine oil coolers on M235i vehicles?
I'm not sure about upgraded coolers on the M235i but we're going to look in to it for the M2 for sure.
Appreciate 0
      07-19-2016, 04:03 PM   #6
tylere7035d
Enlisted Member
5
Rep
31
Posts

Drives: 2011 silver 35d
Join Date: Jan 2013
Location: boise

iTrader: (0)

awesome development and documenting on this car. love the new wheels, i was looking at HRE, forgeline, BBS, but now i really like the bc forged rz38. if you don't mind me asking, how much are those wheels?

i can't wait to get my M2! going to do alpine white and 6speed as well.
__________________

'04 M3 SMG Imola Red
'11 X5 35D Titanium Silver
waiting on '17 M2
Appreciate 0
      07-19-2016, 04:17 PM   #7
CosmosMpower
Brigadier General
CosmosMpower's Avatar
2049
Rep
3,714
Posts

Drives: F87c, GT3, MK7 GTI
Join Date: Apr 2011
Location: Frisco, TX

iTrader: (1)

259 isn't terrible if you're pushing higher than stock boost and it's hotter than hades outside. How long were the sessions and how long before oil temp hit 259?
Appreciate 1
      07-19-2016, 07:09 PM   #8
David@ActiveAutowerke
BimmerPost Supporting Vendor
United_States
813
Rep
526
Posts


Drives: M2
Join Date: Jan 2016
Location: Miami, FL

iTrader: (0)

Quote:
Originally Posted by tylere7035d View Post
awesome development and documenting on this car. love the new wheels, i was looking at HRE, forgeline, BBS, but now i really like the bc forged rz38. if you don't mind me asking, how much are those wheels?

i can't wait to get my M2! going to do alpine white and 6speed as well.
Alpine and 6spd is the way to go

Quote:
Originally Posted by CosmosMpower View Post
259 isn't terrible if you're pushing higher than stock boost and it's hotter than hades outside. How long were the sessions and how long before oil temp hit 259?
The oil temp would reach 250 after about 3 hot laps. I kept pushing to see if it would plateau but sure enough it kept climbing so I shut it down. I could turn the pace down and run the whole session for sure, but where's the fun in that?
Appreciate 1
amw896582.50
      07-19-2016, 10:04 PM   #9
Twix
Lieutenant Colonel
Twix's Avatar
Canada
652
Rep
1,922
Posts

Drives: 2011 e91
Join Date: Jan 2013
Location: Calgary, AB, Canada

iTrader: (0)

Garage List
David, did you check the stock water temp gauge just for shits and giggles? I'm wondering if it actually works or if it just goes from cold to warm and stays there like my Landy.
__________________
2011 E91
2016 M2 - Sold
2014 X1 - Sold
2002 Land Rover Discovery II - 3" lift & 33s
Appreciate 0
      07-20-2016, 05:04 AM   #10
Bee Pee
Brigadier General
United Kingdom
1736
Rep
4,495
Posts

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

iTrader: (3)

Quote:
Originally Posted by David@ActiveAutowerke View Post
The car setup was as follows:

Nitto NT05 275/35/18
BC Forged RZ38 18x10 square
BC Racing BR Type coilovers with camber plates
Active Autowerke true 3.5" Downpipe
Active Autowerke complete 3.5" Exhaust system

**We have a video of the track day in the works which will be posted once it's been edited.



Best looking 18" setup yet - great work.

What would be 18" F&R width/ET to get similar concavity to fit M235i ?

Looking fwd to the video to hear M2 with AA 3.5" CBE.
__________________
Fettled M135i EB AT - gone but not forgotten:
AW M2 DCT

Last edited by Bee Pee; 07-20-2016 at 08:43 AM..
Appreciate 0
      07-20-2016, 07:52 AM   #11
David@ActiveAutowerke
BimmerPost Supporting Vendor
United_States
813
Rep
526
Posts


Drives: M2
Join Date: Jan 2016
Location: Miami, FL

iTrader: (0)

Quote:
Originally Posted by Twix View Post
David, did you check the stock water temp gauge just for shits and giggles? I'm wondering if it actually works or if it just goes from cold to warm and stays there like my Landy.
I did not, but I should have! I've never been a fan of the BMW temp needles because historically they aren't linear at all.

Quote:
Originally Posted by Bee Pee View Post
Best looking 18" setup yet - great work.

What would be 18" F&R width/ET to get similar concavity to fit M235i ?

Looking fwd to the video to hear M2 with AA 3.5" CBE.
I'm not too familiar with M235i fitments. What is considered an aggressive width/et? I worked with BC when fitting these wheels to the M2 and they have multiple face options for each ET. You can opt for concave with or without the additional dish around the lug holes (our wheels as shown have the extra dish) and if you don't opt for the dish the spokes will have more concave. Hopefully that makes sense.

Appreciate 1
      07-29-2016, 02:33 PM   #12
Tonymiabmw
Colonel
Tonymiabmw's Avatar
552
Rep
2,633
Posts

Drives: Nardo F90 M5 on order
Join Date: Oct 2013
Location: In Transit

iTrader: (1)

Quote:
Originally Posted by masou
man that's hot, to mangled a license plate frame like that
I was there that day it was retarded hot.
Appreciate 1
      07-29-2016, 02:44 PM   #13
Blip Bavarian
salivator
Blip Bavarian's Avatar
United_States
38
Rep
539
Posts

Drives: 16 GT4, 14 X5 V8 & 91 E30 LS1
Join Date: Dec 2007
Location: El Paso, Texas

iTrader: (0)

Love those wheels!!! We look like twins

Quote:
Originally Posted by David@ActiveAutowerke View Post



Appreciate 2
      07-29-2016, 03:14 PM   #14
Ringtaxi
Private First Class
15
Rep
130
Posts

Drives: M3
Join Date: May 2013
Location: NY

iTrader: (2)

stock brakes?
Appreciate 0
      07-29-2016, 06:11 PM   #15
askjeeves
Captain
United_States
144
Rep
952
Posts

Drives: e92 m3/spece30
Join Date: Jun 2008
Location: Miami, FL

iTrader: (1)

Were you at the last NASA event at Sebring too? There was a white m2 booking it around the track. Looked and sounded great.
__________________
2011 e92 ///m3 zcp - jzb/fr
ED 6/29/10
Appreciate 0
      07-29-2016, 07:24 PM   #16
LemonOne
Major
LemonOne's Avatar
United_States
708
Rep
1,079
Posts

Drives: ///Most Powerful Letter
Join Date: Oct 2009
Location: East Coast

iTrader: (0)

Those wheels are so nice!!
Appreciate 0
      07-29-2016, 07:53 PM   #17
M3 Adjuster
Banned
Albania
7905
Rep
11,785
Posts

Drives: 1M, X1 M Sport, E46 325ic
Join Date: Mar 2008
Location: Dallas, Tx

iTrader: (0)

Quote:
Originally Posted by CosmosMpower
259 isn't terrible if you're pushing higher than stock boost and it's hotter than hades outside. How long were the sessions and how long before oil temp hit 259?
I agree.. IIRC BMW specs 300 before they are even remotely concerned. Engine protection kicks in after that. Turbo cars these days ...
Appreciate 0
      07-29-2016, 09:43 PM   #18
AtlantaDude
Just enjoying my time
AtlantaDude's Avatar
United_States
128
Rep
855
Posts

Drives: 2007 BMW E92 335i - Sold
Join Date: Mar 2012
Location: Atlanta

iTrader: (0)

I'm not going to lie, those wheels look perfect on this car. Fracking gorgeous. Awesome setup dude. Looking forward to the video.
__________________
Current - 2022 Rivian R1T, 2021 Ducati Streetfighter V4S, 1969 Chevy C10
Sold - 2018 Tesla Model 3 Performance
Sold - 2007 E92 335i

If speed is death, then buy a Honda and live forever
Appreciate 0
      07-30-2016, 12:02 AM   #19
okusa
Lieutenant Colonel
okusa's Avatar
826
Rep
1,674
Posts

Drives: '11 E90 M3 - SSII
Join Date: Aug 2010
Location: Los Angeles

iTrader: (7)

Makes me wonder how it would feel with a real suspension.
__________________
Appreciate 1
      07-30-2016, 05:07 AM   #20
IS3andME
Major
482
Rep
1,189
Posts

Drives: Lexus IS300
Join Date: May 2010
Location: Maryland

iTrader: (0)

Quote:
Originally Posted by okusa View Post
Makes me wonder how it would feel with a real suspension.
You mean that the suspension from the M3/M4 is not real enough?
Appreciate 0
      07-30-2016, 05:47 AM   #21
M3 Adjuster
Banned
Albania
7905
Rep
11,785
Posts

Drives: 1M, X1 M Sport, E46 325ic
Join Date: Mar 2008
Location: Dallas, Tx

iTrader: (0)

Quote:
Originally Posted by IS3andME
Quote:
Originally Posted by okusa View Post
Makes me wonder how it would feel with a real suspension.
You mean that the suspension from the M3/M4 is not real enough?
"BC Racing BR Type coilovers with camber plates"

This time around the car had been modified with an aftermarket coilover system, a tune, wider wheels on all four corners and stickier tires.

Since the car only gained about 2 seconds over its previous track day, one can understand that the OP was hoping for a lot more.

I'll have to agree with okusa regarding the suspension. I haven't personally heard of BC racing at all, (which means nothing, of course), but it's not a well known setup, which i believe was the point being made.

Apparently the OE M3/m4 setup wasn't "real enough " for the OP, seeing as he has already placed aftermarket equipment on the car. It also sounds like the OP plans to chance from BC BR to BC DR dampers, (not sure what those changes might entail... I'll have to research this product a little. )
Appreciate 1
okusa825.50
      07-30-2016, 05:47 AM   #22
su_root
Lieutenant
168
Rep
405
Posts

Drives: E92 M3
Join Date: Jan 2016
Location: CFL

iTrader: (0)

Any changes to pads or brake fluid?
Appreciate 1
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 06:05 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