DCT Rifle Shot... a taste of things to come for the Americans

Ha66is · 01-30-2010, 05:26 AM

as i believe they're getting DCT this year.

I am unsure about the new exhaust so went and did some runs with my video camera to see how it sounded from outside. I also wanted to see what the back-fire sounded like outside too.

As I've observed most dual clutch cars seem to make an unusual sound between shifts; i think in general i'd describe it like a 'far't' noise (Golf GTI's do it as do Audis). My new 335i was no different in stock mode. Since I had the exhaust done that 'fart' has become a rifle-shot back-fire. If the car is baby'd and allowed to chage automatically (mode 'D') then it just kinda farts. If however, the car is under laod and any revs greater than (say) 3krpm then the gearchange is like a rifle-shot. Gear changes at the top of the rev band are amazing. Given i'm travelling way from the noise, I was curious to see what it sounded like........

Seems the cicadas, wind (which I could've swore was non existent) and passing traffic have ruined my efforts to a large degree, but, hopefully you'll hear it well enough.

Look out for the FAIL when I tried a WOT launch only for the DSC to kick in and ruin things as traction was broken.

Cheers

Thommo

[u2b]<object width="560" height="340"><param name="movie" value="http://www.youtube.com/v/7bN0Igr1TRA&hl=en_US&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/7bN0Igr1TRA&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="560" height="340"></embed></object>[/u2b]

zerotohundred · 01-30-2010, 08:14 AM

Mate,that has got to be the best sound i've heard coming out of a 335. Bet you scare a few children when you're driving through town!

kgb1637 · 01-30-2010, 08:46 AM

That shifting is SOOO fast

mark325 · 01-30-2010, 09:20 AM

Not sure if I'm too keen on the drive by gun shots lol, Exhaust does sound nice though

WOPALX · 01-30-2010, 03:18 PM

It's certainly a unique 'pop'.

BTW I've been caught at that same spot by the fun police so take care.

Ha66is · 01-30-2010, 04:18 PM

Quote:

Originally Posted by WOPALX

It's certainly a unique 'pop'.

BTW I've been caught at that same spot by the fun police so take care.

Good call!!!
Need to find somewhere more discreet for this loutish behaviour!!

What ikm wondering is, would (say) the bmw perf exhaust do the same?? This is a characteristic of the car and the exhaust either muffles ( stock) or exagerates (hitech)??

Wonder what an eisenmann would sound like :-):-):-)

mmmmQuattro · 01-30-2010, 04:23 PM

Yeah, I love that pop when changing gears, kinda like a F1 car sound.
Is it now much louder and constant even when warm?
Mine, with stock exhaust does a really loud pop when cold going from 1st to 2nd and then when warm, just does a mild pop.

Ha66is · 01-30-2010, 04:41 PM

Quote:

Originally Posted by jp330Cic.au

Yeah, I love that pop when changing gears, kinda like a F1 car sound.
Is it now much louder and constant even when warm?
Mine, with stock exhaust does a really loud pop when cold going from 1st to 2nd and then when warm, just does a mild pop.

Yup, louder (actually, i'm not convinced i totally like it), and constant at the appropriate Throttle opening (i'd guess 40%-60%).

MFKN3 · 01-31-2010, 06:01 PM

Your pops sound a bit different than mine. Mine were more like backfires and extremely loud. Although the latest procede firmware seems to have almost stopped it now.

Ha66is · 02-01-2010, 05:21 PM

Quote:

Originally Posted by xsboost

Your pops sound a bit different than mine. Mine were more like backfires and extremely loud. Although the latest procede firmware seems to have almost stopped it now.

Yeah, would (perhaps) expect a difference in sound given a) the different 'states' of our cars (given you have a mod thats likely to impact the sound that I don't (yet

)and b) DCT v Steptronic/

However, the vid could be misleading as the rock-wall echo which i never thought of when I filmed it does kind make the sound diffeent.

Will try again maybe this weekend.

01-30-2010, 05:26 AM	#1
Ha66is Private First Class 8 Rep 127 Posts Drives: 911 C2 Join Date: Dec 2009 Location: Sydney iTrader: (1)	DCT Rifle Shot... a taste of things to come for the Americans as i believe they're getting DCT this year. I am unsure about the new exhaust so went and did some runs with my video camera to see how it sounded from outside. I also wanted to see what the back-fire sounded like outside too. As I've observed most dual clutch cars seem to make an unusual sound between shifts; i think in general i'd describe it like a 'far't' noise (Golf GTI's do it as do Audis). My new 335i was no different in stock mode. Since I had the exhaust done that 'fart' has become a rifle-shot back-fire. If the car is baby'd and allowed to chage automatically (mode 'D') then it just kinda farts. If however, the car is under laod and any revs greater than (say) 3krpm then the gearchange is like a rifle-shot. Gear changes at the top of the rev band are amazing. Given i'm travelling way from the noise, I was curious to see what it sounded like........ Seems the cicadas, wind (which I could've swore was non existent) and passing traffic have ruined my efforts to a large degree, but, hopefully you'll hear it well enough. Look out for the FAIL when I tried a WOT launch only for the DSC to kick in and ruin things as traction was broken. Cheers Thommo [u2b]<object width="560" height="340"><param name="movie" value="http://www.youtube.com/v/7bN0Igr1TRA&hl=en_US&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/7bN0Igr1TRA&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="560" height="340"></embed></object>[/u2b] Last edited by Ha66is; 01-30-2010 at 04:39 PM..
	Appreciate 0 Tweet Quote

01-30-2010, 08:14 AM	#2
zerotohundred New Member 5 Rep 27 Posts Drives: '11 135i DCT Join Date: Sep 2009 Location: Western Australia iTrader: (0)	Mate,that has got to be the best sound i've heard coming out of a 335. Bet you scare a few children when you're driving through town!
	Appreciate 0 Quote

01-30-2010, 08:46 AM	#3
kgb1637 Lieutenant Colonel 21 Rep 1,519 Posts Drives: RS5 Join Date: Sep 2008 Location: Baltimore, MD iTrader: (0)	That shifting is SOOO fast __________________ Retired - '08 E90 335i Sparkling Graphite/Gray Dakota Leather, ZSP, ZCW, ZPP, Navi, ipod, Sat
	Appreciate 0 Quote

01-30-2010, 09:20 AM	#4
mark325 Europhile 13 Rep 374 Posts Drives: 06 E90 325i Manual Join Date: Jan 2009 Location: Sunny Coast, QLD, AU iTrader: (0)	Not sure if I'm too keen on the drive by gun shots lol, Exhaust does sound nice though __________________ '06 E90 325i 6MT \| Full M3 Kit \| H&R Euro Race \| VMR V710 \| Colour Kidneys AusBMW :: My Tutorials
	Appreciate 0 Quote

01-30-2010, 03:18 PM	#5
WOPALX Lieutenant Colonel 86 Rep 1,993 Posts Drives: 335i Sedan Join Date: May 2007 Location: Sydney, Australia iTrader: (2)	It's certainly a unique 'pop'. BTW I've been caught at that same spot by the fun police so take care.
	Appreciate 0 Quote

01-30-2010, 04:23 PM	#7
mmmmQuattro Major 259 Rep 1,165 Posts Drives: f83 / E93 335 / E70 X5 40d Join Date: Sep 2007 Location: Adelaide, South Australia iTrader: (0) Garage List 2007 320 E91 M-Spor ... [0.00] 2009 335-E93 M-Sport [0.00]	Yeah, I love that pop when changing gears, kinda like a F1 car sound. Is it now much louder and constant even when warm? Mine, with stock exhaust does a really loud pop when cold going from 1st to 2nd and then when warm, just does a mild pop.
	Appreciate 0 Quote

01-31-2010, 06:01 PM	#9
MFKN3 Colonel 127 Rep 2,224 Posts Drives: supercharged 4.4L stroker E92 Join Date: Nov 2008 Location: Australia iTrader: (2)	Your pops sound a bit different than mine. Mine were more like backfires and extremely loud. Although the latest procede firmware seems to have almost stopped it now.
	Appreciate 0 Quote