want to hear my turbo better.

99.5 A4 1.8t apr 93 octane.

i know the turbo whine doesnt make a car fast, but i still like the noise. I AM NOT talking about DV noise.  just the whine.  after driving a few B6 1.8t's and a passat 1.8t i'm just wondering why you can hear their stock turbos better than mine. i swiss cheesed the airbox and with the 93 octane chip it should be a whole lot louder.................so whats the difference between my B5 and a B6 or passat and what can i do to change it.  thanks

i hear mine fine, what filter are you running?  did you upgrade exhaust

Disconnect the oil supply line to the turbo and plug it .  Run the turbo for 2 minutes.  They you will hear real loud turbo whine as your bearings go out. 

quote:

ORIGINAL: david9999

Disconnect the oil supply line to the turbo and plug it .  Run the turbo for 2 minutes.  They you will hear real loud turbo whine as your bearings go out. 

Haha, yea that's one way. Or I was thinking he could slap on a GT3071r...

get an intake

filter is k and n box filter, swiss cheesed airbox, stock exhaust.  look, i'm just trying to figure out why a bone stock B6 or passat is very noticeably louder..........there has to be some difference.

quote:

ORIGINAL: chaos92287

get an intake

 
what he said

fine. i can get an intake.  i'm sure it will help but at the same time i don't particularly like too much intake engine noise.

the point is something about a completely stock B6 or in this case the 03 passat i drive that is different than my car that makes the turbo very noticeable from inside the car.  Again i am talking about completely stock cars.  I was just wondering if anyone out there knows what is different about the stock versions of these cars that makes that turbo noticeable.  thats all.

i appreciate all help but i'm aware getting an intake will make it louder. just looking for the difference in the stock A4's.  thanks again

aren't the b6's and the passats 180/190 hp cars v the b5's 150/170 hp...... there might be more technology between models, is the b6 a fwd car, cause the passat even if it is 4motion the engine sits with turbo by firewall which would make it closer to the cabin maybe that is why
 
 
like i said, i just swissed the front of my box, not the bottom... have a k&n drop in and i hear my turbo.... hard to hear over the rice can i have on the car now, and might be when i get the new magnaflow and tp, too....... but when i had my cone filter i heard it even better than i do now and i heard my dv really well.. now no dv noise, but that is cool

front mount

exhaust would help too

i swissed the side of my box closest to the wheel.  i hear engine intake and a little more sound from the turbo...........and B6 and the passat have a slightly bigger turbo, i think they call it the k03 sport, but still my chipped turbo is pushing a lot more air than their stock turbos and their's are very noticeable from inside the car.......you know its turbocharged just riding in it with no radio. if i get on it in mine its definitely fast but you have to really listen to hear the turbo.  theres is something different in the design, turbo, intake or exhaust.  just wish i knew what it was.

for example some turbo diesel trucks i've worked on have a silencer ring before the intake side of the turbo.......take it off and it sounds like an 18 wheeler from the turbo sound.  doubt my B5 has that but there has to be something that makes it quieter than a B6.

thanks for the serious responses.

even a swiss cheese airbox won't be as loud as a cone intake. and the b6's have a dual exhaust instead of your single. i wouldn't really call a k03s "bigger" but it pushes a few more psi, but like you said, since your chipped, you should be able to hear it more than them. with a test pipe, exhaust, and intake my turbo is very audible

quote:

ORIGINAL: turbo kraut

aren't the b6's and the passats 180/190 hp cars v the b5's 150/170 hp...... there might be more technology between models, is the b6 a fwd car, cause the passat even if it is 4motion the engine sits with turbo by firewall which would make it closer to the cabin maybe that is why


like i said, i just swissed the front of my box, not the bottom... have a k&n drop in and i hear my turbo.... hard to hear over the rice can i have on the car now, and might be when i get the new magnaflow and tp, too....... but when i had my cone filter i heard it even better than i do now and i heard my dv really well.. now no dv noise, but that is cool

 
Passat is longitudinal mount, just like the A4 - so the turbo does not sit next to the firewall.

how does the test pipe do for overall sound,  engine and turbo?  good point on the dual exhaust, don't know exactly what difference that would make but it is something different.

and yes the passat is longitudinal.......i've driven jettas and lord knows my dad's 2.7twin turbo is louder, but i'm comparing the same setups.

Duals wont do anything.  The cat like the airbox muffle up the sound.  All you really need is an intake to hear the turbo.  Just remember, the turbo is tiny and doesnt flow enough air to be to loud.

K03S is a big difference. I'm guessing the sound deadening material/placement would make a huge difference too.

The ko3s on the transverse engines actually come with a silencer/muffler on them.

I had a 00 passat and when I got the flex pipe replaced, the turbo bcame very loud. The same thing happenned 2 weeks ago when I got the flex pipe replaced on my 01 a4 TQM. The turbo became very loud. The spool sound is almost annoying now.(but i still like it) I think the sound is due to the flex pipe not being OEM because it was replaced at a regular muffler place. I looked at it and the new flex pipe is a little smaller in diameter than the orignal one. Do you guys think the smaller diameter flex pipe is more restrictive? I told the guy but he insists that it isn't, he has "been doing this for 35 years". What do you guys think? I personally think he's a dumbass.

He is a dumbass.  Turbo cars need no restrictions after the turbo.  How big depends on the turbo and power level.  2.5" is the smallest you can go w/o being much of a restriction.

Like chaos said: This whistles like a mother F**ker
 

quote:

ORIGINAL: cincyTT

The ko3s on the transverse engines actually come with a silencer/muffler on them.

so any possibility mine has some kinda silencer on it?  and whats the flex pipe, the pipe after the cat?  when you had it replaced did everything get louder or just the turbo sound?

no, transverse, not longitude

cone intake/custom heat shield...made my turbo about 50x more audible (over the stock airbox)...a turbo inlet may also help...and then i know for a fact that a nice custom magnaflow 2.5" exhaust set-up will make the turbo VERY audible....

right now with just a k&N cone my turbo can be heard from at least half a block away....

well, gl!

Chip + cone filter