M5POST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   M5POST - BMW M5 Forum > F10 M5 Forum > M5 versus...

Post Reply
 
Thread Tools Search this Thread
      08-04-2018, 05:08 PM   #1
Madvillain
First Lieutenant
152
Rep
331
Posts

Drives: lada
Join Date: Aug 2017
Location: Ontario

iTrader: (0)

Red face bms stage 1 m5 vs m4

i did a few runs last night with my brother and another friend (both f8x stage 1 cars) and the results were surprising lol....when my m5 was stock it was identical to my friends bms stage 1 m3 from 100 to 200kph. have since installed bms stage 1 on m5 and last night decided to test it against the m4 and m3. long story short the 2 of them were identical (surprise surprise) but what was shocking was they were somehow identical(or there abouts depending on who stepped on gas first) to the m5.... so what gives anyone else experience anything similar?

i have footage with gopro but its at night. i can run it again tomorrow if anyone curious about proof of this.
Appreciate 0
      08-05-2018, 07:50 PM   #2
Pikey Motorsports
First Lieutenant
Pikey Motorsports's Avatar
United Kingdom
75
Rep
375
Posts

Drives: M5
Join Date: Apr 2018
Location: Bristol

iTrader: (0)

Something not right

My stock m5 is identical to stage 2 m4 done many runs
Appreciate 1
      08-06-2018, 10:42 PM   #3
Madvillain
First Lieutenant
152
Rep
331
Posts

Drives: lada
Join Date: Aug 2017
Location: Ontario

iTrader: (0)

Quote:
Originally Posted by Pikey Motorsports View Post
Something not right

My stock m5 is identical to stage 2 m4 done many runs
exactly ive done that same friends m3 (bms stage 1,res delete, intake) and was identical to the m5 stock (no surprise there). but this is really weird. i did a 4th gear pull with brother in m4(bms stag 1) otw home and the m4 pulled. i contacted bms to see if the unit could be faulty but i think the culprit is the heat. i think s63tu has some serious issues with heatsoak. we have like 20-35 degree weather here so i think that plays a roll. how i came to this theory (yet to be proven) is on a fun run brother stomped on gas and i reeled him in from pre dam far back starting way later than he did. wanted to see if anyone on forum was experiencing this inconsistency with f10 m5 tuned.
Appreciate 0
      08-13-2018, 09:32 AM   #4
TrevorM3
Major General
1193
Rep
5,751
Posts

Drives: 6.3 AMG
Join Date: Apr 2013
Location: Florida

iTrader: (0)

Why are you doing 4th gear pulls?

I had an AA piggyback, with downpipes, had no issues handling jb4 m3's/m4's with downpipes.
Appreciate 1
      08-14-2018, 08:31 PM   #5
ZachP51
Second Lieutenant
ZachP51's Avatar
United_States
16
Rep
286
Posts

Drives: F10 M5
Join Date: Oct 2012
Location: Orlando, Fl

iTrader: (4)

I'm running an ESS tune and DP and have no issue walking tune and DP M3/4. Something must be wrong.
__________________
F10 M5//F30 328i //E92 M3 C/P (Retired)//E82 135is (Retired)//E92 335i (Retired)
Appreciate 0
      12-20-2018, 02:28 PM   #6
Madvillain
First Lieutenant
152
Rep
331
Posts

Drives: lada
Join Date: Aug 2017
Location: Ontario

iTrader: (0)

Quote:
Originally Posted by ZachP51 View Post
I'm running an ESS tune and DP and have no issue walking tune and DP M3/4. Something must be wrong.
clearly... lol i think it could be that clutch is otw out, so its affecting how much power is being transferred from engine to wheels. i know when i put it in reverse on incline itll jitter so obv there is no question its pre much toast but idk how much that could affect power to ground. the tune is def functioning correctly if i take it off there is def a reduction in power (really all it does is hold more boost its bms stage 1 nothing fancy). just wondering if it can be down to heavy heat soak or who knows? the m4 does sometimes feel abnormally fast though.... it is individual frozen red with individual white interior and every option and mod done to it from bmw like mpe all the carbon bs and w.e. perhaps it has comp tuned ecu and now since the bms stage 1 is on its stacked??
the inconsistency of the m5 i think is due to clutch and heat soak. Either way i wanted to hear some input from people on the forum.
Appreciate 0
      12-21-2018, 09:08 AM   #7
Pikey Motorsports
First Lieutenant
Pikey Motorsports's Avatar
United Kingdom
75
Rep
375
Posts

Drives: M5
Join Date: Apr 2018
Location: Bristol

iTrader: (0)

Does the clutch slip? And what fuel you run best thing to do is log the car see what the timing is
Appreciate 0
      12-22-2018, 10:24 AM   #8
kong24680
Captain
United_States
231
Rep
945
Posts

Drives: Silverstone Metallic F06 M6 Gr
Join Date: Feb 2014
Location: Bay Area

iTrader: (5)

You should just get rid of the bms and get a real flash tune
Appreciate 0
      02-16-2019, 03:37 PM   #9
Madvillain
First Lieutenant
152
Rep
331
Posts

Drives: lada
Join Date: Aug 2017
Location: Ontario

iTrader: (0)

Quote:
Originally Posted by kong24680 View Post
You should just get rid of the bms and get a real flash tune
i put it up for sale because ill be doing more power mods to the car but still an odd result that day. is bootmod3 nice and reliable as a tune? i think big issue with f10 m5 is heat soak. m3/4 def has better cooling. most liekly best option wouldbe meth to help it stay cooler.
Appreciate 0
      02-19-2019, 04:06 PM   #10
Chiraq M5
Private First Class
Chiraq M5's Avatar
United_States
27
Rep
122
Posts

Drives: 2015 M5 CP
Join Date: Feb 2019
Location: Chicago

iTrader: (0)

Quote:
Originally Posted by Madvillain View Post
i put it up for sale because ill be doing more power mods to the car but still an odd result that day. is bootmod3 nice and reliable as a tune? i think big issue with f10 m5 is heat soak. m3/4 def has better cooling. most liekly best option wouldbe meth to help it stay cooler.

I have bm3 stage 1 93 octane. all stock. no issues so far
Appreciate 0
      02-22-2019, 01:43 PM   #11
Madvillain
First Lieutenant
152
Rep
331
Posts

Drives: lada
Join Date: Aug 2017
Location: Ontario

iTrader: (0)

Quote:
Originally Posted by Chiraq M5 View Post
I have bm3 stage 1 93 octane. all stock. no issues so far
how is bm3 stage 1 compared to bms stage 1 performance wise? only point i really see of doing the change is if and when i do downpipes...
Appreciate 0
      02-22-2019, 01:49 PM   #12
Madvillain
First Lieutenant
152
Rep
331
Posts

Drives: lada
Join Date: Aug 2017
Location: Ontario

iTrader: (0)

Quote:
Originally Posted by Pikey Motorsports View Post
Does the clutch slip? And what fuel you run best thing to do is log the car see what the timing is
there is slip when creeping in first and reverse is where its felt most. felt it when test driving it long time ago but didnt care much but over this past year of abuse i guess shes done bud haha. i think this is affecting how much power is transferred to the ground for sure. rear right feels a lil soft too. if youre casual driver you wouldnt notice but if youre one of us youd know instantly. so i think these 2 are culperats.
Appreciate 0
      02-22-2019, 06:52 PM   #13
Chiraq M5
Private First Class
Chiraq M5's Avatar
United_States
27
Rep
122
Posts

Drives: 2015 M5 CP
Join Date: Feb 2019
Location: Chicago

iTrader: (0)

Quote:
Originally Posted by Madvillain View Post
how is bm3 stage 1 compared to bms stage 1 performance wise? only point i really see of doing the change is if and when i do downpipes...


Not really sure about bms but bm3 stage 1 for me was pretty nice. Car response better and feels it's more awake overall. No sound difference.

If you're gonna do downpipes & air intake you can get stage 2 it will make a huge difference & sound better. bm3 will also burble with stage 2 and downpipes
Appreciate 0
      02-22-2019, 08:21 PM   #14
Madvillain
First Lieutenant
152
Rep
331
Posts

Drives: lada
Join Date: Aug 2017
Location: Ontario

iTrader: (0)

Quote:
Originally Posted by Chiraq M5 View Post
Not really sure about bms but bm3 stage 1 for me was pretty nice. Car response better and feels it's more awake overall. No sound difference.

If you're gonna do downpipes & air intake you can get stage 2 it will make a huge difference & sound better. bm3 will also burble with stage 2 and downpipes
ya i figured that was the case with the stage 1. i have res delete so hopefully its not too loud on the exterior when i go with catless downpipes haha.
Appreciate 0
      02-24-2019, 10:37 PM   #15
Chiraq M5
Private First Class
Chiraq M5's Avatar
United_States
27
Rep
122
Posts

Drives: 2015 M5 CP
Join Date: Feb 2019
Location: Chicago

iTrader: (0)

Quote:
Originally Posted by Madvillain View Post
ya i figured that was the case with the stage 1. i have res delete so hopefully its not too loud on the exterior when i go with catless downpipes haha.


Catless downpipes are gonna be loud for sure lots of horspower gain

I wish we didn't have such strict emission test in IL I would've gone catless longgg time ago
Appreciate 0
      02-25-2019, 07:59 AM   #16
mister2d
Lieutenant
134
Rep
598
Posts

Drives: F10 M5
Join Date: Dec 2013
Location: USA

iTrader: (1)

Quote:
Originally Posted by Chiraq M5 View Post
Catless downpipes are gonna be loud for sure lots of horspower gain

I wish we didn't have such strict emission test in IL I would've gone catless longgg time ago
You could go catted (high flow cats) and still likely pass.
Appreciate 0
      02-25-2019, 12:19 PM   #17
Chiraq M5
Private First Class
Chiraq M5's Avatar
United_States
27
Rep
122
Posts

Drives: 2015 M5 CP
Join Date: Feb 2019
Location: Chicago

iTrader: (0)

Quote:
Originally Posted by mister2d View Post
You could go catted (high flow cats) and still likely pass.


Yea I saw couple of them but I wasn't sure about the quality... will have to look into it deeper
Appreciate 0
      02-26-2019, 12:47 AM   #18
M6-Coupe
Major General
M6-Coupe's Avatar
755
Rep
5,788
Posts

Drives: F80 M3 CP
Join Date: Feb 2014
Location: Bay area

iTrader: (0)

Quote:
Originally Posted by TrevorM3 View Post
Why are you doing 4th gear pulls?

I had an AA piggyback, with downpipes, had no issues handling jb4 m3's/m4's with downpipes.
Hi Trevor... long time no see
__________________
Current : 2018 Mineral Gray M3 6MT
Gone : 2016 Austin Yellow M4 6MT
Gone: 2013 Sakhir Orange M6 -7DCT
Gone: 2013 Alpine White 650i -ZF8
Gone: 2012 Black Sapphire 650i - ZF8
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 02:22 PM.




m5post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, 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