Bootmod3 Now Available for the X3M/X4M S58

Hoonigan · 03-01-2020, 07:52 PM

Quote:

Originally Posted by AlexFL

So I loaded the stage 1 BM3 and the car feels beastly. Here is my problem. My brakes can't hold the wheels while the car is boosting during the launch control execution. They were holding before the tune. Does anybody else have this problem? Should I put new pads? Any other way to upgrade the brakes? Thanks for help!

I had this issue occasionally when stock...solution was to do a hard brake or two from any speed before doing the launch

AlexFL · 03-01-2020, 08:29 PM

Quote:

Originally Posted by Hoonigan

I had this issue occasionally when stock...solution was to do a hard brake or two from any speed before doing the launch

But that’s annoying. Are there any fitting performance brake pads that would solve this?

r33_RGSport · 03-01-2020, 08:44 PM

Quote:

Originally Posted by AlexFL

But that’s annoying. Are there any fitting performance brake pads that would solve this?

I normally just double / triple pump it before mushing the gas pedal.

M5 TT · 03-02-2020, 03:15 AM

Quote:

Originally Posted by AlexFL

So I loaded the stage 1 BM3 and the car feels beastly. Here is my problem. My brakes can’t hold the wheels while the car is boosting during the launch control execution. They were holding before the tune. Does anybody else have this problem? Should I put new pads? Any other way to upgrade the brakes? Thanks for help!

Brakes are pretty shit for the car. Basically 760i brakes. Caliper is huge pad is tiny. Need M brakes I think.

spta97 · 03-02-2020, 06:29 AM

Quote:

Originally Posted by M5 TT

Brakes are pretty shit for the car. Basically 760i brakes. Caliper is huge pad is tiny. Need M brakes I think.

Wow that’s misleading. I would have thought a much bigger pad considering the size of the caliper.

Damn you BMW!

AlexFL · 03-02-2020, 08:03 AM

Quote:

Originally Posted by moff

I've had no issues with the brakes so far, not felt any fade?

They are from a 600bhp car that weight 2.3 tonnes, so can't be that bad?

I have issues with LC after BM3 Stage 1. Brakes don’t hold the wheels anymore during the initial boosting.

M5 TT · 03-02-2020, 09:02 AM

X3m 395 x 36 mm disc, 4 Pot caliper

F10 M5 400 x 36 mm disc, 6 pot caliper with at least 50% larger pad surface area.

I think the M5 option would be an easy upgrade and not too expensive

AlexFL · 03-02-2020, 10:39 AM

Quote:

Originally Posted by M5 TT

X3m 395 x 36 mm disc, 4 Pot caliper

F10 M5 400 x 36 mm disc, 6 pot caliper with at least 50% larger pad surface area.

I think the M5 option would be an easy upgrade and not too expensive

So you think that F10 M5 brakes can be retrofitted in X3M?

M5 TT · 03-02-2020, 01:00 PM

Quote:

Originally Posted by AlexFL

So you think that F10 M5 brakes can be retrofitted in X3M?

I would need to get my hands on M5 Calipers but on the face of it looks pretty easy

onfireX5 · 03-02-2020, 03:58 PM

Quote:

Originally Posted by AlexFL

So I loaded the stage 1 BM3 and the car feels beastly. Here is my problem. My brakes can’t hold the wheels while the car is boosting during the launch control execution. They were holding before the tune. Does anybody else have this problem? Should I put new pads? Any other way to upgrade the brakes? Thanks for help!

I had the same problem with my M5. Had to burnish the pads/caliper.

Look for the procedure link in this thread.

Works great.

https://f90.bimmerpost.com/forums/sh...Launch+Control

AlexFL · 03-02-2020, 04:21 PM

Quote:

Originally Posted by onfireX5

I had the same problem with my M5. Had to burnish the pads/caliper.

Look for the procedure link in this thread.

Works great.

https://f90.bimmerpost.com/forums/sh...Launch+Control

Thanks, this is indeed super helpful. Do I need to put new pads first or should I try to burnish the current ones?

SuperSport · 03-02-2020, 05:36 PM

Quote:

Originally Posted by AlexFL

Thanks, this is indeed super helpful. Do I need to put new pads first or should I try to burnish the current ones?

AlexFL.. How many miles on the X3M? feel like I need to start shopping for pads

AlexFL · 03-02-2020, 05:52 PM

Quote:

Originally Posted by SuperSport

AlexFL.. How many miles on the X3M? feel like I need to start shopping for pads

Only 5000 miles but I ran a few laps on the PBIR and this really eats your pads. Brakes feel fine, it's just the launch control which is a problem now.

onfireX5 · 03-02-2020, 09:24 PM

Quote:

Originally Posted by AlexFL

Thanks, this is indeed super helpful. Do I need to put new pads first or should I try to burnish the current ones?

I would try the original pads first. Tough procedure because you have to know the road to be able to follow it exactly.

AlexFL · 03-02-2020, 11:23 PM

Quote:

Originally Posted by onfireX5

I would try the original pads first. Tough procedure because you have to know the road to be able to follow it exactly.

Thanks, will try!

GT500R · 03-07-2020, 09:19 AM

Quote:

Originally Posted by AlexFL

So I loaded the stage 1 BM3 and the car feels beastly. Here is my problem. My brakes can’t hold the wheels while the car is boosting during the launch control execution. They were holding before the tune. Does anybody else have this problem? Should I put new pads? Any other way to upgrade the brakes? Thanks for help!

Did you need to send out your ECU? Or you just flashed it yourself?

When did you get your X3M delivered?

I’m trying to figure out how to forgo any type of bench flash if possible...

AlexFL · 03-07-2020, 09:35 AM

Quote:

Originally Posted by GT500R

Did you need to send out your ECU? Or you just flashed it yourself?

When did you get your X3M delivered?

I’m trying to figure out how to forgo any type of bench flash if possible...

I get all the work done by a local BMW-specialized tuning shop. They are currently looking into upgrading the brakes. The advantage is that I can also do the scheduled BMW maintenance through them.

PURE340i · 03-08-2020, 09:16 PM

It would be nice to see some dyno results. I wonder if BM3 will post any up on pump and ethanol blended....

Hoonigan · 03-08-2020, 09:22 PM

Quote:

Originally Posted by PURE340i

It would be nice to see some dyno results. I wonder if BM3 will post any up on pump and ethanol blended....

I think the real-world results speak for themself..BM3 makes this car an all new beast!!!

PURE340i · 03-08-2020, 09:28 PM

Quote:

Originally Posted by Hoonigan

I think the real-world results speak for themself..BM3 makes this car an all new beast!!!

I know, but it's exciting to see results of a flashed S58 as its part of the upcoming G80 and G82!

AlexFL · 03-08-2020, 10:33 PM

Quote:

Originally Posted by PURE340i

It would be nice to see some dyno results. I wonder if BM3 will post any up on pump and ethanol blended....

it’s whp...

PURE340i · 03-08-2020, 10:54 PM

Quote:

Originally Posted by AlexFL

it’s whp...

Nice 600whp with just a stage 1 E30! Thanks for this graph.

03-02-2020, 09:02 AM	#73
M5 TT Captain 169 Rep 657 Posts Drives: F90 M5 Join Date: Sep 2008 Location: UK iTrader: (0)	X3m 395 x 36 mm disc, 4 Pot caliper F10 M5 400 x 36 mm disc, 6 pot caliper with at least 50% larger pad surface area. I think the M5 option would be an easy upgrade and not too expensive __________________ 540i GTR-R35, F90 M5, X3MC, RS3, RS7, M5, S7, S3, RS3, RS6, GTR R35, 996 Turbo, M5, RS6 V10, Cayenne Turbo S
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03-08-2020, 09:16 PM	#84
PURE340i Banned 104 Rep 231 Posts Drives: 2018 BMW 340i & 2011 335d Join Date: May 2017 Location: California iTrader: (0)	It would be nice to see some dyno results. I wonder if BM3 will post any up on pump and ethanol blended....
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