10-12-2021, 01:32 AM | #1 |
Enlisted Member
6
Rep 34
Posts |
burble and pop on m50i
Hi guys, does anyone know how to create pops and cracks on the 21 x6m50i? The car has some good cracks and pops during revs on sport plus. However, I do not hear any during the drive.
On the gle53 I noticed I could get pops and cracks by accelerating to a high rpm and just press the brake a little. I tried the same on x6m50i which is a v8(praise on bmw) compared to a straight 6 on the gle53 but it didn't work. Is there something I should try? I am also thinking of tuning the car to create more obvious burbles as I do enjoy the sound. However I am just worried of it voiding the warranty. Any suggestions would be highly appreciated! Thank you! |
10-13-2021, 07:09 PM | #3 | ||
Private
56
Rep 65
Posts |
Quote:
Quote:
|
||
Appreciate
1
MissVito217.50 |
10-14-2021, 02:33 AM | #4 |
Enlisted Member
6
Rep 34
Posts |
sick! what color is that?
BTW I have experimented with setting the engine sound into sporty and putting on sport plus. I would press the gas relatively hard to 3000rpm and upon release I can hear the pops but not very loud. Then if I keep tapping the gas I would also hear it. It is not loud tho. I will change to a catless downpipe in hope to fix that. I hope people can provide easier ways for the pop to occur so I don't have to excessively tap the gas. |
Appreciate
0
|
10-14-2021, 10:03 PM | #5 |
Private First Class
91
Rep 159
Posts |
I don't know if it applies to the G05, but on my F90 M5C, you had to be in sports plus with the exhaust setting on (the latter is not a function on the G05) and then you would hear pops and burbles between 2500-4500rpm upon deceleration, and possibly only from 2-4th gear.
So if I was cruising slow in 2nd gear, and at 4400rpm lifted off the gas, it would pop/burble instantly, every time. I don't know if the G05 has similar parameters that must be met, but I'm betting that being in Sports or Sports Plus is probably one of them. |
Appreciate
0
|
10-17-2021, 06:22 PM | #6 |
Second Lieutenant
226
Rep 262
Posts |
New Exhaust or potentially modify it. . . see below post.
Many people don't like the overly stimulated AMG - sounds like it's trying to hard to stroke egos. It's a fine balance between sounding mean vs. cheesy. Resonator delate below - sounds like a good balance https://g05.bimmerpost.com/forums/sh....php?t=1714383 |
Appreciate
0
|
10-20-2021, 04:14 AM | #7 |
Major
1356
Rep 1,244
Posts |
Burbles and pops need to be coded into the ECU. I've already asked my tuner about it. They can do it, but do not recommend it on a car that has factory catalytic converters.
Noise regulations have caused many manufacturers to make their cars quieter, compared to (essentially) the same car from a few years earlier.
__________________
2020 X5 M50i, Alpine, B&W, Air Susp, anthracite, coffee, **CD player**:
15+ PAGE BUILD THREAD:https://g05.bimmerpost.com/forums/sh....php?t=1694019 690HP / 928nM Dynotune:https://g05.bimmerpost.com/forums/sh....php?t=1729813 6-Piston/4-piston BBK:https://g05.bimmerpost.com/forums/sh....php?t=2097342 |
Appreciate
0
|
10-22-2021, 02:24 PM | #8 | |
Enlisted Member
6
Rep 34
Posts |
Quote:
|
|
Appreciate
0
|
10-30-2021, 11:44 AM | #9 |
Major General
4713
Rep 8,775
Posts
Drives: eVeRyOnE mAD!
Join Date: Dec 2020
Location: neither here nor there...
|
whether you tune the ECU or use lower octane fuel, burbles and pops are essentially 'controlled' misfires.
unburnt fuel makes it past the combustion chamber into the cats where it ignites which decreases their life especially when subjecting OEM vehicle components to a situation that's designed to a limited tolerance. |
Appreciate
0
|
11-02-2021, 02:22 PM | #10 |
Captain
302
Rep 913
Posts |
The afterfire that causes the pops is abusive to the cats. It's "afterfire" because the unburnt fuel ignites after the combustion process and proceeds on out the exhaust. Backfires ignite in the combustion process and flame out the intake--one of the reasons they're so destructive.
You're basically popping a temporary rich condition to overload the combustion chamber's programmed ability to burn fuel so that it passes on through to be ignited in the exhaust, causing the tiny explosion down stream where the cats are
__________________
2020 bmw xHippo, v8tt edition
|
Appreciate
0
|
11-02-2021, 11:48 PM | #11 | |
Enlisted Member
6
Rep 34
Posts |
Quote:
Thanks |
|
Appreciate
0
|
11-03-2021, 10:26 AM | #12 |
Captain
302
Rep 913
Posts |
Yeah, and everything would become a little raspier, but there is absolutely no reason to take the cats off a street car, at all, anymore.
__________________
2020 bmw xHippo, v8tt edition
|
Appreciate
0
|
11-05-2021, 03:39 PM | #13 | |
New Member
13
Rep 20
Posts |
Quote:
I did have the new Supra for 3 years with pops on burbles at max with factory cat, no issues. It's tested that way. If your cat goes bad one day after years, you'll just have to replace it... If you're way too environmentally conscious, well you'd better look for ev, fuel cell, etc. anyhow. |
|
Appreciate
0
|
11-05-2021, 04:03 PM | #15 | |
Enlisted Member
6
Rep 34
Posts |
Quote:
I personally already ordered a cattled downpipe, I guess it's too late to change. However I am open to hear any concerns. |
|
Appreciate
0
|
11-06-2021, 11:47 AM | #16 |
Private First Class
65
Rep 118
Posts |
My understanding is it used to be removing cats would help performance. Removing modern cats doesn’t help anymore, other than additional pollution with the benefit of sounding a little cooler.
|
Appreciate
0
|
11-07-2021, 12:29 AM | #17 | |
Captain
302
Rep 913
Posts |
Quote:
__________________
2020 bmw xHippo, v8tt edition
|
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|