F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > B58 Turbo Engine / Drivetrain / Exhaust Modifications > 440 x-drive 6-MT bm3 stage 2+
Extreme Powerhouse
Post Reply
 
Thread Tools Search this Thread
      05-12-2020, 02:07 PM   #1
4seriesNL
Private First Class
4seriesNL's Avatar
Canada
87
Rep
121
Posts

Drives: 2017 BMW M240i
Join Date: Jan 2018
Location: St. John's, Newfoundland

iTrader: (0)

440 x-drive 6-MT bm3 stage 2+

Hey everyone
I have some questions about clutch reliability with some of my current mods and mods to come.

Important to note that I live in Newfoundland and only have access to 91octane fuel.

Current Mods:
ER Catless DP
MPE
Agency Power Intake
Bm3 stage 2

I'm looking at upgrading to the Dorche HPFP so I can run OTS Stage 2+ map.

This is the expected gains from Stage 2+
Stage 2+ 91 octane: up to 37% HP / 62% TQ
Based on stock numbers of 320hp 330tq that would leave me with 438hp and 532tq

These torque numbers kinda scare me with the stock clutch.


Whats the consesnus on clutch tq sustainability?
Is the HPFP a reasonable next upgrade?
__________________
Instagram: 709m240i
Appreciate 0
      05-12-2020, 02:16 PM   #2
yokata
Second Lieutenant
yokata's Avatar
Bulgaria
156
Rep
242
Posts

Drives: Bmw F30 340xi
Join Date: Feb 2020
Location: Bulgaria

iTrader: (0)

In my case st2+ make 53 crank hp difference from st2(452/505)...about the clutch i read here in the forum that ppl with manual is ugrading with 550i clutch.
Appreciate 1
      05-12-2020, 02:47 PM   #3
G.Newt
Major
802
Rep
1,447
Posts

Drives: CT4-V Blackwing 6MT
Join Date: Feb 2017
Location: CO -> TX

iTrader: (0)

Regular Stage 2 91 caused my clutch to start slipping after 8 months. Went with 335is/550i clutch and it holds on great even now that I'm on stage 2 E30. It's almost a guarantee that it'll start slipping. It's not the clutch, it's the pressure plate. But you don't really buy those separate.
Appreciate 1
      05-12-2020, 05:50 PM   #4
4seriesNL
Private First Class
4seriesNL's Avatar
Canada
87
Rep
121
Posts

Drives: 2017 BMW M240i
Join Date: Jan 2018
Location: St. John's, Newfoundland

iTrader: (0)

Quote:
Originally Posted by G.Newt View Post
Regular Stage 2 91 caused my clutch to start slipping after 8 months. Went with 335is/550i clutch and it holds on great even now that I'm on stage 2 E30. It's almost a guarantee that it'll start slipping. It's not the clutch, it's the pressure plate. But you don't really buy those separate.
How much did it cost you for the clutch replacement
__________________
Instagram: 709m240i
Appreciate 0
      05-12-2020, 08:24 PM   #5
G.Newt
Major
802
Rep
1,447
Posts

Drives: CT4-V Blackwing 6MT
Join Date: Feb 2017
Location: CO -> TX

iTrader: (0)

Quote:
Originally Posted by 4seriesNL View Post
How much did it cost you for the clutch replacement
https://www.realoem.com/bmw/enUS/sho...diagId=21_0227

You'll want parts: #1 (clutch kit), #4 (you need 6 of these), #5, and #6. I purchased them all on FCP Euro for around $350ish with free lifetime replacement. I paid my mechanic friend $840 for the clutch install.
Appreciate 1
      05-13-2020, 07:32 AM   #6
kern417
Cheapskate
4442
Rep
4,992
Posts

Drives: 2018 440i |2016 340i | 2010 X5
Join Date: Aug 2016
Location: Cincinnati

iTrader: (1)

550i clutch holding my E85 tune great. Upgrade if you're doing above stage 2. It'll also make sure you don't ruin your flywheel from slipping the stock clutch so you can reuse it.

Replacement here costs ~$800. The clutch itself is ~$325.
__________________
Quote:
Originally Posted by umizoomi View Post
As long as 3-pedals are an option, I will exercise my right to suffer the handicap and indignity of slower shifts and reaction times.
Youtube/Instagram/TikTok: @kern417
Appreciate 0
      05-13-2020, 07:47 AM   #7
joeyb26
Captain
276
Rep
772
Posts

Drives: 2020 M340i xDrive
Join Date: May 2013
Location: North NJ

iTrader: (1)

I'll second (third?) the last two...I replaced my clutch with the 550i clutch after going stage 2 BM3. Clutch is $$350 or so on FCP Euro (comes with everything you'll need). My install was right around $950 I believe
__________________
2016 340i xDrive 6MT (regretfully sold)
2020 M340i xDrive
Appreciate 0
      05-13-2020, 07:48 AM   #8
4seriesNL
Private First Class
4seriesNL's Avatar
Canada
87
Rep
121
Posts

Drives: 2017 BMW M240i
Join Date: Jan 2018
Location: St. John's, Newfoundland

iTrader: (0)

Thanks everyone.
Looks like I'll go that route
__________________
Instagram: 709m240i
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 01:19 PM.




f30post
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