Pandora Car Alarm System
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   BMW M3 and BMW M4 Forum > BMW F80 M3 / F82 M4 Technical Topics > Track / Autocross / Dragstrip / Driving Techniques

Post Reply
 
Thread Tools Search this Thread
      01-16-2022, 09:38 PM   #89
D_SheerDrivingPleasure
Major
D_SheerDrivingPleasure's Avatar
United_States
1291
Rep
1,038
Posts

Drives: F80
Join Date: Aug 2020
Location: NYC

iTrader: (0)

from this month's Grassroots Motorsports Mag...
Attached Images
 
Appreciate 2
SYT_Shadow11928.50
sly1types457.50
      01-19-2022, 09:53 AM   #90
SYT_Shadow
///M Powered for Life
SYT_Shadow's Avatar
11929
Rep
10,525
Posts

Drives: E90M/E92M/M4GTS/M4GT4/X5M
Join Date: Sep 2010
Location: Greenwich, CT

iTrader: (2)

The aero in the GTMore is incredible. We saw the car in person not long ago. That thing is going to be a monster
Appreciate 0
      01-24-2022, 07:43 PM   #91
stevehifi
Captain
532
Rep
853
Posts

Drives: 17 F80 M3 ZCP
Join Date: May 2008
Location: Irvine,CA

iTrader: (5)

any idea on when BW will officially announce the kit that you can buy for this build?
Appreciate 0
      01-28-2022, 02:21 AM   #92
Tomclassy
Registered
0
Rep
4
Posts

Drives: Bmw m4
Join Date: Jan 2022
Location: Dfw

iTrader: (0)

swan neck wings are the future it seems
Appreciate 0
      01-28-2022, 09:29 AM   #93
biofluke
Private First Class
106
Rep
115
Posts

Drives: 2017 M3 Competition
Join Date: May 2019
Location: Fairfield County, CT

iTrader: (0)

Quote:
Originally Posted by D_SheerDrivingPleasure View Post
from this month's Grassroots Motorsports Mag...
Awesome!

I did a little digging and found that grassroots motorsports magazine website had another video of the GTmore project. Not sure if this was shared already, so I apologize if it has been.

https://grassrootsmotorsports.com/vi...ace-car-video/

I'm following this very closely.

With a custom track tune on 93 octane, I am getting a ton of timing being pulled and loss of power at the track. I am getting seriously tempted to get those Mitsubishi oem+ turbo upgrades, to give the power boost of a tune while keeping temperatures down. Cranking the boost up on the stock turbos puts you well outside of its optimal temperature operating range. I have a hard time spending a fortune on upgraded cooling for only 10% gain. Running the larger turbo at near stock boost levels should give the same performance but better temperature management.
Appreciate 2
fanatic11018.50
Suds1627.00
      02-05-2022, 10:43 AM   #94
///Mobbin
Colonel
///Mobbin's Avatar
1488
Rep
2,676
Posts

Drives: m3
Join Date: Jul 2011
Location: Houston

iTrader: (3)

Really excited about this project, thank you SYT_Shadow for turning me on to it!
__________________
2020 Cayenne Turbo | 4.0L
2014 Cayman S | 3.4L | 6MT
Looking to add a DCT F80 M3
Appreciate 1
SYT_Shadow11928.50
      12-02-2022, 05:45 PM   #95
Pwurz
New Member
69
Rep
12
Posts

Drives: SpecE46, GTMore, BimmerBus
Join Date: Jan 2016
Location: VA

iTrader: (0)

Well this thread has tapered off but I assure you, the fun with the GTMore hasn't. I've had the pleasure of piloting the car at a number of events since the last update, including its most recent stint out at the SEMA show in Vegas for the OPTIMA Ultimate Street Car Invitational event. So as we head towards the end of the year, and just threw up a new video yesterday, it seems appropriate to revive this thread. The latest episode hit's the GTMore exhaust which is not only an absolute screamer, but a useful screamer with proven power and torque gains - check it out.

Appreciate 3
SYT_Shadow11928.50
JimmyS71.00
ZAPDDY88.50
      12-02-2022, 09:12 PM   #96
JamesClay
Second Lieutenant
JamesClay's Avatar
145
Rep
270
Posts

Drives: BMW 3
Join Date: May 2005
Location: Virginia

iTrader: (0)

Garage List
1996 320iT  [0.00]
2003 M3  [0.00]
2006 325i  [0.00]
2008 M3  [0.00]
Quote:
Originally Posted by SYT_Shadow View Post
I've always been told the same thing regarding oem diffs and trannys: only OEM fluids.

With the DCT, I use redline as the M4 GT4 DCT and the regular M one is the same.

With the diff, based on their feedback here I'll start running redline in my ediff

I've been running redline oils for a while
This car still has the factory differential and Red Line is the proper choice for us. Absolutely not a risk.
Appreciate 2
      12-03-2022, 04:22 AM   #97
SYT_Shadow
///M Powered for Life
SYT_Shadow's Avatar
11929
Rep
10,525
Posts

Drives: E90M/E92M/M4GTS/M4GT4/X5M
Join Date: Sep 2010
Location: Greenwich, CT

iTrader: (2)

Quote:
Originally Posted by JamesClay View Post
This car still has the factory differential and Red Line is the proper choice for us. Absolutely not a risk.
After the video we swapped both gts to the redline! Working great so far!
Appreciate 0
      12-05-2022, 11:22 PM   #98
RugbyBro
Brigadier General
RugbyBro's Avatar
7715
Rep
3,663
Posts

Drives: M3
Join Date: Jun 2019
Location: SF

iTrader: (0)

Updated the first post with all the recent vids! Sorry been following along but only just got to this.

Pwurz Got the GTMore sway bar set on Black Friday - what's your recommendation when pairing with the OE CS damping (hardware + tune)?
__________________
Current: E92, E46
Prior: F80, F82, F32
Appreciate 0
      12-06-2022, 09:48 AM   #99
Pwurz
New Member
69
Rep
12
Posts

Drives: SpecE46, GTMore, BimmerBus
Join Date: Jan 2016
Location: VA

iTrader: (0)

Quote:
Originally Posted by RugbyBro View Post
Updated the first post with all the recent vids! Sorry been following along but only just got to this.

Pwurz Got the GTMore sway bar set on Black Friday - what's your recommendation when pairing with the OE CS damping (hardware + tune)?
Thanks for getting the first post updated!

As a baseline I'd back up the recommendation that Wyatt sent you a couple of weeks ago. Closer to stiff in the front and in the middle in the rear to start with as a baseline. And of course we call it a baseline as there are a lot more layers here as to track grip level, other car setup, tires, driving style, etc - but that should be a good start. Then feel free to reach out with car behaviors/what it's doing - from there we can help evaluate if a change is warranted and what that should be.
Appreciate 1
RugbyBro7715.00
      12-06-2022, 11:54 AM   #100
RugbyBro
Brigadier General
RugbyBro's Avatar
7715
Rep
3,663
Posts

Drives: M3
Join Date: Jun 2019
Location: SF

iTrader: (0)

Quote:
Originally Posted by Pwurz View Post
Thanks for getting the first post updated!

As a baseline I'd back up the recommendation that Wyatt sent you a couple of weeks ago. Closer to stiff in the front and in the middle in the rear to start with as a baseline. And of course we call it a baseline as there are a lot more layers here as to track grip level, other car setup, tires, driving style, etc - but that should be a good start. Then feel free to reach out with car behaviors/what it's doing - from there we can help evaluate if a change is warranted and what that should be.
Sweet, thanks! Will have them installed this month and hopefully have a couple winter track days in Jan / Feb to feel it out
__________________
Current: E92, E46
Prior: F80, F82, F32
Appreciate 0
      01-10-2023, 12:17 PM   #101
bracer
Mr Bill
298
Rep
545
Posts

Drives: GLC63
Join Date: Sep 2013
Location: Aliso Viejo

iTrader: (1)

So this is 45K in parts and probably 10K more in labor, so not insignificant. Figure 100K investment. With the splitter it's definitely not very streetable. How easy is it to remove?

Seems like 80% the way to a racecar without the stripped interior and full safety cage / fire/etc?

This would be a lot more interesting with close to full steering, and a splitter that was built as two pieces so the extension could be removed and or replaced.

Also not completely familiar with VIR. I see lap times from events but what does a similar caliber driver in a 991 GT3 on DH slicks run there as a comparison?
__________________
2020 X2 M35i
2023 Porsche GT4RS
Turbo Miata Racecar (sold)
1995, 2009, 2015 M3 (sold)
Appreciate 0
      01-10-2023, 12:34 PM   #102
JamesClay
Second Lieutenant
JamesClay's Avatar
145
Rep
270
Posts

Drives: BMW 3
Join Date: May 2005
Location: Virginia

iTrader: (0)

Garage List
1996 320iT  [0.00]
2003 M3  [0.00]
2006 325i  [0.00]
2008 M3  [0.00]
Quote:
Originally Posted by bracer View Post
So this is 45K in parts and probably 10K more in labor, so not insignificant. Figure 100K investment. With the splitter it's definitely not very streetable. How easy is it to remove?

Seems like 80% the way to a racecar without the stripped interior and full safety cage / fire/etc?

This would be a lot more interesting with close to full steering, and a splitter that was built as two pieces so the extension could be removed and or replaced.

Also not completely familiar with VIR. I see lap times from events but what does a similar caliber driver in a 991 GT3 on DH slicks run there as a comparison?
I don't personally choose to drive something like this on the street at all, probably more due to the steering lock limits. But a lot of our customers need to drive to and from the track. I have already done quite a bit of driving on public roads at the Sandhills event in 2021, and we are doing One Lap this year with the car, so ask me after May with 3500 street miles logged.

But the point of this car is to push the limits and show what is possible with a stock production car. Bit if you don't want to deal with aero on a street car, leave it off (I don't like a wing hanging off the trunk for something I drive regularly). And if you want standard steering lock, stick with slightly narrower wheels/tires. We break the car up into segments and realize that the GTM top spec isn't the right choice for everyone - and we have lots of other options. And few will do the whole build the way we have. Pick and choose how you want to build yours.

If you want to pay more for a Porsche and more to run one, there is no doubt they are fast cars. But a lot of our customers are BMW focused and want to do it in a BMW, and maybe the BMW they already own. A GTM F82 isn't the only way to go fast - but with the range of options to build something similar they can be extremely fast if that's what you choose to build or drive.
Appreciate 2
SYT_Shadow11928.50
RugbyBro7715.00
      01-10-2023, 12:54 PM   #103
bracer
Mr Bill
298
Rep
545
Posts

Drives: GLC63
Join Date: Sep 2013
Location: Aliso Viejo

iTrader: (1)

I can see the value of that. To and from the track is mostly what I did with my M3 and is also the direction I'm headed back to after trailering a track car for the past few years. California is just too hard to own a trailer in.

My questions really are around how drivable it is, and how often you are going to be replacing the splitter and how it compares in the marketplace.

My last m3 was similar (MCS/Alcon/etc...) to this with some big missteps on the motor side, which is the reason I sold it.
__________________
2020 X2 M35i
2023 Porsche GT4RS
Turbo Miata Racecar (sold)
1995, 2009, 2015 M3 (sold)
Appreciate 0
      01-10-2023, 02:37 PM   #104
RSXDC5
Captain
RSXDC5's Avatar
716
Rep
888
Posts

Drives: M3
Join Date: Sep 2012
Location: Scottsdale, AZ

iTrader: (0)

Quote:
Originally Posted by bracer View Post
I can see the value of that. To and from the track is mostly what I did with my M3 and is also the direction I'm headed back to after trailering a track car for the past few years. California is just too hard to own a trailer in.

My questions really are around how drivable it is, and how often you are going to be replacing the splitter and how it compares in the marketplace.

My last m3 was similar (MCS/Alcon/etc...) to this with some big missteps on the motor side, which is the reason I sold it.
The MCS dampers you sold me have definitely been put to use these last few years! They are simply incredible. Paired with the massive GTmore sways, even better than before!
__________________
2015 M3 - AW 6Spd w/ CCB
MCS 2WR Dampers, Spec Twin Disk Clutch, MaxPSI CH, F80Paul Ethanol Tune, 3.5in DPs
Appreciate 0
      01-10-2023, 03:12 PM   #105
JamesClay
Second Lieutenant
JamesClay's Avatar
145
Rep
270
Posts

Drives: BMW 3
Join Date: May 2005
Location: Virginia

iTrader: (0)

Garage List
1996 320iT  [0.00]
2003 M3  [0.00]
2006 325i  [0.00]
2008 M3  [0.00]
Quote:
Originally Posted by bracer View Post
I can see the value of that. To and from the track is mostly what I did with my M3 and is also the direction I'm headed back to after trailering a track car for the past few years. California is just too hard to own a trailer in.

My questions really are around how drivable it is, and how often you are going to be replacing the splitter and how it compares in the marketplace.

My last m3 was similar (MCS/Alcon/etc...) to this with some big missteps on the motor side, which is the reason I sold it.
I wouldn’t be driving a low car on the street with a splitter on a regular basis. You can raise the car some. And we will have full aero on the car for its One Lap journey.

If you don’t need to open a factory engine to track it, don’t. The stock reliability is hard to regain and there should be plenty of power potential (risk vs. benefit) on most BMW models with software and bolt-ons.
Appreciate 2
SYT_Shadow11928.50
      02-08-2023, 04:52 PM   #106
Pwurz
New Member
69
Rep
12
Posts

Drives: SpecE46, GTMore, BimmerBus
Join Date: Jan 2016
Location: VA

iTrader: (0)

Next GTMore video update - We threw in the KMP Dual Mount Offset Diff Bracket. Possibly not for everyone if your car is daily driven (we have other solutions if that's you), but for a track focused F8X or for someone that doesn't mind a little additional NVH, this is THE solution that checks all the boxes - dual mount, raises the diff to restore axle geometry, built in freedom to reduce peak forces, solid mounted.

Appreciate 2
DRLane4117.50
Suds1627.00
      02-08-2023, 05:27 PM   #107
ninekrpm
Captain
ninekrpm's Avatar
581
Rep
743
Posts

Drives: F80M3 (Track) / E92M3 (Street)
Join Date: Oct 2011
Location: SoCal

iTrader: (1)

Quote:
Originally Posted by Pwurz View Post
Next GTMore video update - We threw in the KMP Dual Mount Offset Diff Bracket. Possibly not for everyone if your car is daily driven (we have other solutions if that's you), but for a track focused F8X or for someone that doesn't mind a little additional NVH, this is THE solution that checks all the boxes - dual mount, raises the diff to restore axle geometry, built in freedom to reduce peak forces, solid mounted.



nice review of the product!
__________________
----------------------------------------------------------------
2015 M3 - GT4 replica
Ongoing build thread https://f80.bimmerpost.com/forums/sh....php?t=1802471
For Pics / Video's visit Instagram https://www.instagram.com/ninekrpm1/
Appreciate 0
      02-08-2023, 07:09 PM   #108
SYT_Shadow
///M Powered for Life
SYT_Shadow's Avatar
11929
Rep
10,525
Posts

Drives: E90M/E92M/M4GTS/M4GT4/X5M
Join Date: Sep 2010
Location: Greenwich, CT

iTrader: (2)

I can't believe we won't be running these in the GTS GTmores... solid diff bushings don't pair well with 10h tripa
Appreciate 0
      02-10-2023, 01:55 AM   #109
DRLane
Brigadier General
DRLane's Avatar
United_States
4118
Rep
3,510
Posts

Drives: E92 M3
Join Date: Oct 2018
Location: Colorado

iTrader: (22)

Garage List
2008 m3  [6.63]
Quote:
Originally Posted by SYT_Shadow View Post
I can't believe we won't be running these in the GTS GTmores... solid diff bushings don't pair well with 10h tripa
Headphones
__________________
Not a Doctor, those are just my initials.
Appreciate 1
SYT_Shadow11928.50
      02-10-2023, 05:44 AM   #110
SYT_Shadow
///M Powered for Life
SYT_Shadow's Avatar
11929
Rep
10,525
Posts

Drives: E90M/E92M/M4GTS/M4GT4/X5M
Join Date: Sep 2010
Location: Greenwich, CT

iTrader: (2)

Quote:
Originally Posted by DRLane View Post
Headphones
Been there done that! 10h is too far to drive with earplugs or headphones!
Appreciate 1
DRLane4117.50
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 08:11 AM.




f80post
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