Exhaust burrbles/gurggles on our platform compared to N55 w/ PPK

BQTuning · 03-11-2016, 12:16 AM

Quote:

Originally Posted by J. Dub

Don't fuckin play with my emotions Dimitri. I saw your video (up a couple of posts) my N54 actually has more gurggle and pops than yours does in that video. However, I'm no where NEAR the level of the N55 guys.

I'd pay for this ppk "feature" on the N54. And I truly don't think it's a single turbo thing. I think it's literally just a waist of fuel. And I'm ok with this.

LOL ! Im serious, I'll play with it a bit see how it turns out, no codes etc before I putting out a beta. Don't complain that the power feels like stock cause it will be hahaha

PNWN54 · 03-11-2016, 12:34 AM

Quote:

Originally Posted by BuraQ

Once I'm done with couple of projects I'll look into it. If it turns out good on my end Ill put out some beta for exhaust sound only nothing with power. All goes well I'll hand it over to Martial to implement into an option in MHD

That would be so freaking awesome! Thanks Dimitri!

NightStalker · 03-11-2016, 02:29 AM

Quote:

Originally Posted by BuraQ

LOL ! Im serious, I'll play with it a bit see how it turns out, no codes etc before I putting out a beta. Don't complain that the power feels like stock cause it will be hahaha

LOL WHAT????
would this help on a stock exhaust setup as well? 335xi coupe

mikenazz · 03-11-2016, 03:06 AM

Quote:

Originally Posted by BuraQ

Once I'm done with couple of projects I'll look into it. If it turns out good on my end Ill put out some beta for exhaust sound only nothing with power. All goes well I'll hand it over to Martial to implement into an option in MHD

that will be awesome!

F36Vader · 03-11-2016, 04:10 AM

Hi
I shot this the video about a year ago. Mods in my signature + gold Tee

I do hear cracks and burbles when watching the video, however almost never when actually driving and listening from inside the cabin.
Seems it just isn't as pronounced as the n55

BQTuning · 03-11-2016, 07:48 AM

Quote:

Originally Posted by RVS 8

LOL WHAT????
would this help on a stock exhaust setup as well? 335xi coupe

Well I still have stock exhaust with catless downpipes and that's what it will be tested on first. If I cant do it on that then it will be a wash.

madmantwo · 03-11-2016, 11:36 AM

Man I got rid of all my cats, added a Vibrant 1792 resonator in place of both secondary cats, and threw on the PE mufflers last week. Every time I let off the throttle I get tons of gurgles and pops. Sounds like my old CBR when I go WOT too

I know the goal here is to get the same effect without spending $$$ on hardware but damn I'm pleased

expressfish · 03-11-2016, 11:56 AM

Quote:

Originally Posted by Fred_Boosted

I think it some how can be achieved by go fully cat-less and as they say make tuning do the job.

Personally, I hate the raspy crack and pop sound. They are obnoxious to me.

I agree, back in the day I'd be quite embarressed if my exhaust popped/backfired. It meant that you had an exhaust leak somewhere and or pos.

J. Dub · 03-11-2016, 04:38 PM

Quote:

Originally Posted by expressfish

I agree, back in the day I'd be quite embarressed if my exhaust popped/backfired. It meant that you had an exhaust leak somewhere and or pos.

Look at the video of the white 135i in the OP. Notice how when he STOPs revving all you hear is burrble / gurggle noises? That is MOSTLY what I am talking about. I don't care much about pops as much as the Jaguar F type burbbles and lamborghini hurracan sport exhaust gurggles.

I agree too many pops can be silly but the burrbble / gurggle is what I mean. And I get it ALL DAY LONG on my straight pipe from turbo's back with no x-connect or h-pipe, no cats, and no resonators nor muffles. My exhaust is loud. Probably the loudest on this forum. And I get the gurggles and burbbles on off throttle acceleration all day long ONLY if I keep my foot on the accelerator w/ a slight tip in. And it's so hard to keep it right there at the perfect 1% throttle push-in with my right foot. The N55 guys don't have to keep their foot on the throttle slightly tipped in. They're able to use that foot to brake the vehicle and the car STILL gurggles/burbbles.

BuraQ this is my best explanation. Also, upon a cold start in the morning my car naturally sounds like a PPK N55 but only for about 2 minutes then it's gone and I have to hold the throttle down at a 1% tip in.

BQTuning · 03-11-2016, 04:50 PM

I need to disable my flap...lol, loaded up the map, it wants to roar. My neighbors are not going to like me and then I will have to hate you guys for it.

SlimE92 · 03-11-2016, 05:11 PM

Quote:

Originally Posted by BuraQ

Once I'm done with couple of projects I'll look into it. If it turns out good on my end Ill put out some beta for exhaust sound only nothing with power. All goes well I'll hand it over to Martial to implement into an option in MHD

PNWN54 · 03-11-2016, 08:08 PM

Quote:

Originally Posted by BuraQ

I need to disable my flap...lol, loaded up the map, it wants to roar. My neighbors are not going to like me and then I will have to hate you guys for it.

This is awesome and I hope Martial can put this in affect soon. Would gladly throw a tip in a jar to help with the heat.

PNWN54 · 03-11-2016, 08:10 PM

Quote:

Originally Posted by SlimE92

+1

BQTuning · 03-11-2016, 08:25 PM

Ok finished with map, disabled flap, midcats and stock exhaust still suppressing much of the sound but I can hear tons of gurgles and pops within the exhaust line, unless I'm hearing things...lol

Waiting for adaptations to settle then I'll send out the test map for those who have upgraded exhaust or axle backs. Mine ain't cutting much.

Send email request to BuraQ@mybmw335is.com

I need your VIN# and mods and if you are on I8A0S, IJE0S, or INA0S and fuel type. I will select 3 people only. Maps will be snail maps by the way ...lol

Jozy · 03-11-2016, 08:35 PM

Yay! Hope Jdub gets his dream come true.

bpdef29 · 03-11-2016, 08:49 PM

Lol this is so stupid...and I am absolutely going to do it if it works

PNWN54 · 03-11-2016, 09:18 PM

Quote:

Originally Posted by BuraQ

Ok finished with map, disabled flap, midcats and stock exhaust still suppressing much of the sound but I can hear tons of gurgles and pops within the exhaust line, unless I'm hearing things...lol

Waiting for adaptations to settle then I'll send out the test map for those who have upgraded exhaust or axle backs. Mine ain't cutting much.

Send email request to BuraQ@mybmw335is.com

I need your VIN# and mods and if you are on I8A0S, IJE0S, or INA0S and fuel type. I will select 3 people only. Maps will be snail maps by the way ...lol

Dimitri, I really would like to get a test map but would this alter my current custom PTF tune?

BQTuning · 03-11-2016, 09:26 PM

Quote:

Originally Posted by PNWN54

Dimitri, I really would like to get a test map but would this alter my current custom PTF tune?

No, your just flashing a map. When you're done checking it out flash back to the PTF map.

BTW this is only for MHD not COBB if you're still on that side.

There will be no high boost or load or timing. Everything pretty much will be closer to stock performance.

PNWN54 · 03-11-2016, 09:33 PM

Quote:

Originally Posted by BuraQ

No, your just flashing a map. When you're done checking it out flash back to the PTF map.

BTW this is only for MHD not COBB if you're still on that side.

There will be no high boost or load or timing. Everything pretty much will be closer to stock performance.

Got it. Thanks! I'm on MHD and already sent you an email.

J. Dub · 03-11-2016, 10:04 PM

Quote:

Originally Posted by BuraQ

Ok finished with map, disabled flap, midcats and stock exhaust still suppressing much of the sound but I can hear tons of gurgles and pops within the exhaust line, unless I'm hearing things...lol

Waiting for adaptations to settle then I'll send out the test map for those who have upgraded exhaust or axle backs. Mine ain't cutting much.

Send email request to BuraQ@mybmw335is.com

I need your VIN# and mods and if you are on I8A0S, IJE0S, or INA0S and fuel type. I will select 3 people only. Maps will be snail maps by the way ...lol

Email sent

psmitty95 · 03-11-2016, 10:47 PM

Quote:

Originally Posted by PNWN54

Got it. Thanks! I'm on MHD and already sent you an email.

Quote:

Originally Posted by J. Dub

Email sent

Keep us posted on how it goes

J. Dub · 03-11-2016, 10:50 PM

Originally Posted by einserM View Post
It's doable, but the lowest load column is 13, which the car is under when on full decel (also turns injectors off on decel so no added fuel). Playing around I set the target AFR to 9.99 and the timing to -10.00 in the 13 load column from 7000 down to 2000 (these cells are not touched during normal driving). On very light throttle application on decel it runs down this column and sounds much more prominent than stock, but not like the PPK tune I've heard.

Do you need to press the throttle lightly to make it do it on the PPK tune? If not they must not be shutting off the injectors on decel. Usually there are injector shutoff timers you can increase to achieve this (eg after lift off delay injector closing for 5000msec will give you crackles/pops for that time), but with so few tables available in the roms we have very little control (no injector control, no launch maps or 2-step launch boost control, no VE tables, no ECU controlled flex fuel, the list goes on). Many other cars have fully unlocked ECU tables and even custom roms with tables the stock ECU never even had allowing things like this and more but BMW aftermarket tuning support and table definitions is sadly years behind at the moment.

EINSER M posted the above. Adding him in here

03-11-2016, 04:10 AM	#27
F36Vader Second Lieutenant 238 Rep 279 Posts Drives: 435i Gran Coupe Join Date: Jun 2014 Location: Toronto iTrader: (1)	Hi I shot this the video about a year ago. Mods in my signature + gold Tee I do hear cracks and burbles when watching the video, however almost never when actually driving and listening from inside the cabin. Seems it just isn't as pronounced as the n55 __________________ 2015 435i xDrive Gran Coupe - Black Sapphire, M Sport, MPPK, MPE RIP; 2015 C63 AMG Coupe - Obsidian Black, 507 Edition RIP; 2009 335i Sedan - Titanium Silver, Sport pkg, Premium pkg, FBO
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03-11-2016, 11:36 AM	#29
madmantwo Second Lieutenant 94 Rep 233 Posts Drives: 2010 e92 335i Join Date: Nov 2015 Location: Seattle iTrader: (1)	Man I got rid of all my cats, added a Vibrant 1792 resonator in place of both secondary cats, and threw on the PE mufflers last week. Every time I let off the throttle I get tons of gurgles and pops. Sounds like my old CBR when I go WOT too I know the goal here is to get the same effect without spending $$$ on hardware but damn I'm pleased __________________ 2010 BSM 335i 6MT M-Sport w/ MMP Stage 3 Turbos
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03-11-2016, 04:50 PM	#32
BQTuning Banned 469 Rep 4,392 Posts Drives: 2012 Z4 sDrive35i M Sport 6MT Join Date: Nov 2010 Location: bq@bqtuning.com iTrader: (0)	I need to disable my flap...lol, loaded up the map, it wants to roar. My neighbors are not going to like me and then I will have to hate you guys for it.
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03-11-2016, 08:25 PM	#36
BQTuning Banned 469 Rep 4,392 Posts Drives: 2012 Z4 sDrive35i M Sport 6MT Join Date: Nov 2010 Location: bq@bqtuning.com iTrader: (0)	Ok finished with map, disabled flap, midcats and stock exhaust still suppressing much of the sound but I can hear tons of gurgles and pops within the exhaust line, unless I'm hearing things...lol Waiting for adaptations to settle then I'll send out the test map for those who have upgraded exhaust or axle backs. Mine ain't cutting much. Send email request to BuraQ@mybmw335is.com I need your VIN# and mods and if you are on I8A0S, IJE0S, or INA0S and fuel type. I will select 3 people only. Maps will be snail maps by the way ...lol Last edited by BQTuning; 03-11-2016 at 08:43 PM..
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03-11-2016, 08:35 PM	#37
Jozy ¯\_(ツ)_/¯ 170 Rep 425 Posts Drives: R32 GTR Join Date: Aug 2015 Location: Hong Kong iTrader: (1)	Yay! Hope Jdub gets his dream come true.
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03-11-2016, 08:49 PM	#38
bpdef29 Private First Class 90 Rep 115 Posts Drives: '09 E92 335i Join Date: Dec 2013 Location: OC iTrader: (0)	Lol this is so stupid...and I am absolutely going to do it if it works
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03-11-2016, 10:50 PM	#44
J. Dub Bob Saget 355 Rep 2,229 Posts Drives: 2010 335i e92 N54 A/T Join Date: Jun 2010 Location: AR - 501 iTrader: (15)	Originally Posted by einserM View Post It's doable, but the lowest load column is 13, which the car is under when on full decel (also turns injectors off on decel so no added fuel). Playing around I set the target AFR to 9.99 and the timing to -10.00 in the 13 load column from 7000 down to 2000 (these cells are not touched during normal driving). On very light throttle application on decel it runs down this column and sounds much more prominent than stock, but not like the PPK tune I've heard. Do you need to press the throttle lightly to make it do it on the PPK tune? If not they must not be shutting off the injectors on decel. Usually there are injector shutoff timers you can increase to achieve this (eg after lift off delay injector closing for 5000msec will give you crackles/pops for that time), but with so few tables available in the roms we have very little control (no injector control, no launch maps or 2-step launch boost control, no VE tables, no ECU controlled flex fuel, the list goes on). Many other cars have fully unlocked ECU tables and even custom roms with tables the stock ECU never even had allowing things like this and more but BMW aftermarket tuning support and table definitions is sadly years behind at the moment. EINSER M posted the above. Adding him in here __________________ In memory of Robert E. Flynn (AR)
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