Go Back   Honda-Tech > Honda and Acura Technical Forums > Forced Induction
Sign in using an external account
Register Forgot Password?
Search


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
Old 04-29-2005, 09:01 PM   #1
mike93eh
Guest
 
Posts: n/a
Default why do turbo diesels whistle so damn loud?

i was just wondering why turbo diesel trucks (dodge, ford) whistle so damn loud. at like 1000 or so rpms and up. one of my boss' has a ford that you can hear the damn whistle from at least a mile a way. he has mods done to it though. but still even stock trucks turbo's whistle freakin loud.
  Reply With Quote
Old 04-29-2005, 09:30 PM   #2
Honda-Tech Member
 
Civicman86's Avatar
 
Join Date: Apr 2003
Location: Louisville, KY, 40222
Posts: 1,679
iTrader Rating: (0)
Send a message via AIM to Civicman86
Default Re: why do turbo diesels whistle so damn loud? (mike93eh)

My rs whistles pretty damn loud, reminds me of a diesel truck lol.
__________________
-Dustin
EJ8 Squad #033
Gt28RS powered D16Y8 (9psi - stock internals)
1/8 mile:8.90 @ 83.94 on street tires

eCtune http://images.honda-tech.com/set1/smile/emthup.gif http://images.honda-tech.com/set1/smile/emthup.gif
Civicman86 is offline   Reply With Quote
Old 04-29-2005, 10:05 PM   #3
 
trentepic's Avatar
 
Join Date: Oct 2003
Location: manassas, va, manassas
Posts: 218
iTrader Rating: (0)
Send a message via AIM to trentepic
Default Re: why do turbo diesels whistle so damn loud? (Civicman86)

possibly due to the huge turbo compressor? or turbine for that matter (guessing)
__________________
DA Squad Member #191 - 1993 Acura Integra GS-R
Join DA Squad : [url="http://www.honda-tech.com/zerothread?id=1146547"]http://www.honda-tech.com/zerothread?id=1146547[/url]
Trent Epic: well ive got 2 garages
recursions: lucky
Trent Epic: yeah i use it to put surpboe chargers on cars
Trent Epic: its a cross between a super charger and a turbo
Trent Epic: hybrid horse powers mostly
Quote, originally posted by JamaicanDM
alot of people rev to 10k & 11 k all day thats nothinh new
trentepic is offline   Reply With Quote
Old 04-29-2005, 10:08 PM   #4
mike93eh
Guest
 
Posts: n/a
Default Re: why do turbo diesels whistle so damn loud? (trentepic)

Quote:
Originally Posted by trentepic
possibly due to the huge turbo compressor? or turbine for that matter (guessing)
yea i guess that makes sense. bigger = louder
  Reply With Quote
Old 04-29-2005, 11:25 PM   #5
H-T White Ops
 
Frozen E's Avatar
 
Join Date: Jun 2003
Location: Honolulu, HI
Posts: 4,866
iTrader Rating: (0)
Default

they spool up VERY quickly with the amount of exhaust those big *** engines move. Also, the compressors on those turbos are just a "little" bit bigger than your average turbo used on a honda.
Frozen E is offline   Reply With Quote
Old 04-29-2005, 11:26 PM   #6
H-T White Ops
 
Frozen E's Avatar
 
Join Date: Jun 2003
Location: Honolulu, HI
Posts: 4,866
iTrader Rating: (0)
Default Re: why do turbo diesels whistle so damn loud? (mike93eh)

On a side note (might be the ricer in me talking), but I'd love to have a my 57 trim whistle as loud as some semi and bus turbos do. That'd be bad ***. Click the image to open in full size.
Frozen E is offline   Reply With Quote
Old 04-29-2005, 11:30 PM   #7
Better than steak
 
Arturbo's Avatar
 
Join Date: Jan 2000
Posts: 16,910
iTrader Rating: (0)
Send a message via AIM to Arturbo
Default Re: why do turbo diesels whistle so damn loud? (IslandSi)

Because most of them (newer trucks) have the ported shroud compressor housing.

art
__________________
Just a has been...
Arturbo is offline   Reply With Quote
Old 04-30-2005, 01:39 AM   #8
Honda-Tech Member
 
Tony the Tiger's Avatar
 
Join Date: Mar 2000
Location: Toronto, ON, Canada
Posts: 2,770
iTrader Rating: (0)
Send a message via ICQ to Tony the Tiger
Default

Diesels make peak torque at low low RPM's... What you get is a turbo being at full spool at a measly 1200-1500RPM. So even at idle, those turbos are probably partially spooled already....LOL
__________________
628 WHP Integra Type-R GTX3582R --- 1444 WHP MKIV Supra Billet GTX4508R
1028 WHP Camry GTX4202R -- 513 WHP Evo IX MR ATP GTX3076R -- 500 WHP IS300 GT3076R
Dynamotorsports.ca -- Authorized ECTune Tuner
Tony the Tiger is offline   Reply With Quote
Old 04-30-2005, 03:08 AM   #9
 
Join Date: Dec 2003
Location: Eastern Washington
Posts: 499
iTrader Rating: (0)
Default Re: (Tony the Tiger)

when i was running open down pipe, my car would whistle like a semi truck...
evosol is offline   Reply With Quote
Old 04-30-2005, 07:28 AM   #10
Honda-Tech Member
 
nsxmatt's Avatar
 
Join Date: Nov 2001
Location: Indiana
Posts: 9,204
iTrader Rating: (0)
Send a message via AIM to nsxmatt
Default

30psi and most any turbo makes lots of noise.
__________________
93 Civic SIR-S - Real Deal RHD
05 Lotus Elise
2009 Civic SI
nsxmatt is offline   Reply With Quote
Old 04-30-2005, 07:49 AM   #11
 
Phase Change Racing's Avatar
 
Join Date: Sep 2004
Location: Spokane, WA, USA
Posts: 365
iTrader Rating: (0)
Send a message via AIM to Phase Change Racing
Default Re: (nsxmatt)

30psi, ya ought to hear a cummins at 90psi. Sadly i'm really starting to like diesels. You guys pretty much nailed it. Also Diesels run fairly small turbos (flow rate versus engine displacement) and spin the turbos at considerably higher rpm than gasoline engines do. Many of the bigboy diesels don't even run a wastegate.
__________________
[url="http://www.phasechangeracing.com"]http://www.phasechangeracing.com[/url]
"Nitrous Technology that doesn't push the limits, it redefines them"
Phase Change Racing is offline   Reply With Quote
Old 05-01-2005, 12:26 AM   #12
Junior Member
 
streetrage's Avatar
 
Join Date: May 2003
Location: Salinas, CA, United States
Posts: 448
iTrader Rating: (0)
Default

I heard that diesel turbo trucks are ALWAYS under boost, even at idle... I'm not sure if it's true though...
__________________
Daily Driver: 2004 Comptech Supercharged S2000
2001 Honda S2000 (R.I.P.- Totalled!)


streetrage is offline   Reply With Quote
Old 05-01-2005, 06:05 AM   #13
Member
 
USDM 4G VTEC's Avatar
 
Join Date: Apr 2002
Location: Infamous 4G VTEC, OH
Posts: 4,834
iTrader Rating: (0)
Send a message via ICQ to USDM 4G VTEC Send a message via AIM to USDM 4G VTEC
Default

ill post an example

my boss also has a excursion turbo-diesel
its a 7.0 L engine

has the bigass turbo and 4" dowpipe and full catback

the engine revs to 3500 and thats it
this truck can beat pretty much any Honda around... anyways, with such a big engine volume, theres is sufficient gas flow and heat to spool the turbo at very low rpms , and since the turbos are huge, it moves more air, wich will cause a bigger whistle

the whistle is just the sound of the sucking action of the compressor
__________________
D16Z6 + 14B + 11psi = 234.04whp & 184.37wtq!
My Swap Info

http://www.CollettiMotorsports.com
1-937-294-1533
USDM 4G VTEC is offline   Reply With Quote
Old 05-01-2005, 06:21 AM   #14
something different
 
redzcstandardhatch's Avatar
 
Join Date: Sep 2002
Location: grand rapids/chicago, usa
Posts: 6,940
iTrader Rating: (0)
Send a message via AIM to redzcstandardhatch
Default Re: (USDM 4G VTEC)

i have a 05 powerstroke in my ford f350....

in the morning the idle is slightly elevated (around 1200 rpms) and even under no load that thing spools a LOT, you can hear it all the way across my lot.

my dads 99 powerstroke is very different. completely different engine. spools slower, whistles quieter, etc.

my duramax i had in my old chevy (just sold) was similar to the 05 ford, but the spool seemed less evident....and it didnt have a boost gauge. it was a very quiet diesel. chevy is all about that. i'm not......i love spool. very glad i switched to the powerstroke too, much better truck all around for what we use them for. (towing every day-uber better mileage)
__________________
-adam j. moderately tall dutch track bum. enjoys long walks in the paddock. seeking a trackday where he doesnt hit something.
redzcstandardhatch is offline   Reply With Quote
Old 05-01-2005, 09:20 AM   #15
 
Si Shane's Avatar
 
Join Date: Aug 2003
Posts: 1,205
iTrader Rating: (0)
Default Re: (redzcstandardhatch)

its the exhaust and large amount of boost. YOu spin your turbo to that kind of RPM and get rid of your muffler.

Even driving around open downpipe the tsssssssssssssssssssssssssssssssssssssssssssssssss ssssssssss of the turbo is always heard, especially if you listen for it. You also mostly heard it in a honda at partial throttle maybe 14-6inches. On thos deisel when then go WOT the motor doesn't drown out the noise cause of reverberation and resonation inside the cab, so it sounds even louder from outside.

CN: Higher RPM, and short exhaust make for lots of cool trubo spooling noises.
__________________
If I'm swerving, I must be tuning. [img]http://images.honda-tech.com/set1/smile/emthup.gif[/img]

94b16teg Sold this guy a tranny!
Si Shane is offline   Reply With Quote
Old 05-01-2005, 09:21 AM   #16
Honda-Tech Member
 
Turbo_Mike's Avatar
 
Join Date: Feb 2005
Location: btown
Posts: 1,159
iTrader Rating: (0)
Default Re: why do turbo diesels whistle so damn loud? (IslandSi)

Quote:
Originally Posted by IslandSi
On a side note (might be the ricer in me talking), but I'd love to have a my 57 trim whistle as loud as some semi and bus turbos do. That'd be bad ***. Click the image to open in full size.
run open compressor with no downpipe Click the image to open in full size.
__________________
Quote:
Originally Posted by Smith Wise
College -
Would I go through it again? Let me see....
Freshman year was fun until my first car died
Sophomore year was fun, until I found my girlfriend of 3 years on a **** site
Junior year was fun, until I got her, along with another girl pregnant
Senior year has been a smooth ride all things considering.....
Turbo_Mike is offline   Reply With Quote
Old 05-01-2005, 10:00 AM   #17
Member
 
adseguy's Avatar
 
Join Date: May 2004
Location: Nashville, TN, U.S.A
Posts: 2,992
iTrader Rating: (0)
Send a message via AIM to adseguy
Default Re: why do turbo diesels whistle so damn loud? (razor ron)

Quote:
Originally Posted by razor ron

run open compressor with no downpipe Click the image to open in full size.
yeah it's the turbo housing and Open DP that will make you sound like that. I actually have a video when I had open DP and when spooling down it sounded like a Semi....It was sweet, but too loud. BTW I just had a 57trim t3-t04e
__________________
403whp 334ft/lbs @26psi pump gas Turbo LS - vid

Charcoal Black, IS300 - will turbo soon http://images.honda-tech.com/set1/smile/emthup.gif

http://www.ChicagoLawStudent.com
adseguy is offline   Reply With Quote
Old 05-01-2005, 10:37 AM   #18
 
95cxh22a's Avatar
 
Join Date: Oct 2004
Location: mississippi, us
Posts: 754
iTrader Rating: (0)
Send a message via AIM to 95cxh22a
Default Re: (redzcstandardhatch)

Quote:
Originally Posted by redzcstandardhatch
i have a 05 powerstroke in my ford f350....

in the morning the idle is slightly elevated (around 1200 rpms) and even under no load that thing spools a LOT, you can hear it all the way across my lot.

my dads 99 powerstroke is very different. completely different engine. spools slower, whistles quieter, etc.

my duramax i had in my old chevy (just sold) was similar to the 05 ford, but the spool seemed less evident....and it didnt have a boost gauge. it was a very quiet diesel. chevy is all about that. i'm not......i love spool. very glad i switched to the powerstroke too, much better truck all around for what we use them for. (towing every day-uber better mileage)

i work at an international dealership, your 05 has the new vt365 engine in it,or you would call it a 6.0 powerstroke. your dads has a t444e or 7.3 dit powerstroke.

your turbo is louder because it uses a variable geometry turbo on it. the new egr dt engines use this also. (dt466,dt530,dt570)

also dont forget about the dodges, i like a ford, but the cummins 6bt(which we are also a dealer for hence the holset in my sig thats going on my car) is alot cheaper to service, like $15 for the oil and fuel filters, the 7.3 powerstroke fuel filter alone is $23

a guy that works with me has a twin turbo 02 dodge 3/4 ton. it hauls. 5" exhaust, aftermaket trans. he was behind me one night at 135mph. thats moving for such a big *** truck. it has traction issues though. it will roast the rear tires(and they are big)
__________________
sold to: boostinhard ,dyrcivic,phatboy5015
traded to: driftt
bought from: 93turbo16,honda9369,H-T JT0220 ::csracing ::soon2brb240 ::Honda4CX-T :: b18TurboEF:
bought from:95_integra [img]http://images.honda-tech.com/set1/smile/emthdown.gif[/img]

[url="http://www.torqueaddicts.net"]http://www.torqueaddicts.net[/url]
95cxh22a is offline   Reply With Quote
Old 05-01-2005, 10:38 AM   #19
B*a*n*n*e*d
 
Join Date: Apr 2003
Location: Nampa, ID, US
Posts: 7,540
iTrader Rating: (0)
Default

Around the part of the state I live in, BullyDog Technologies is located, they sell all the high end performance parts for diesels. Every diesel around here has a big BullyDog sticker and parts off the shelf from the showroom. It is cool to hear guys with full Injectors, Intake, Turbo Upgrade, 6" full turbo back, and all necessary mods to tranny and other stuff to hold the power. There is one truck around here that laid down with nitrous and propane injection on top of all the mods, around 750whp and over 1200lb/ft of torque. He whoops *** in local tractor pulls and even takes it out to smoke an occasional ricer.
Blanket Jackson is offline   Reply With Quote
Old 05-01-2005, 01:09 PM   #20
Junior Member
 
dmurphy2k3's Avatar
 
Join Date: Dec 2004
Location: NC State University
Posts: 333
iTrader Rating: (0)
Send a message via AIM to dmurphy2k3
Default Re: (SlowSpyder)

diesels are awsome. My dad used to have a 1984 mercedes 300sd turbo diesel. that thing was such a blast to drive. It had some turbo lag because from like 0 to 10 mph it was really slow, but as soon as you hit a certain point it took off. From a 40 mph roll that thing screemed. I wish he still had it but some idiot girl rear ended us and totalled it.
__________________
95 CD5 5spd
dmurphy2k3 is offline   Reply With Quote
Old 05-01-2005, 02:10 PM   #21
B*a*n*n*e*d
 
Join Date: Apr 2003
Location: Nampa, ID, US
Posts: 7,540
iTrader Rating: (0)
Default Re: (95cxh22a)

Quote:
Originally Posted by 95cxh22a
a guy that works with me has a twin turbo 02 dodge 3/4 ton. it hauls. 5" exhaust, aftermaket trans. he was behind me one night at 135mph. thats moving for such a big *** truck. it has traction issues though. it will roast the rear tires(and they are big)
Is the twin turbo kit custom made by him or someone near you or is it the BullyDog kit? They had a white 03 2500 at SEMA with the twin-turbo kit on it, but they removed it when the truck was sold about 6 months ago.
Blanket Jackson is offline   Reply With Quote
Old 05-01-2005, 04:04 PM   #22
 
95cxh22a's Avatar
 
Join Date: Oct 2004
Location: mississippi, us
Posts: 754
iTrader Rating: (0)
Send a message via AIM to 95cxh22a
Default Re: (SlowSpyder)

i
Quote:
Originally Posted by SlowSpyder
Is the twin turbo kit custom made by him or someone near you or is it the BullyDog kit? They had a white 03 2500 at SEMA with the twin-turbo kit on it, but they removed it when the truck was sold about 6 months ago.
its not custom, when he still had a holset on it he had changes out wheels and housings, i do know it has borg warner turbos on it though, i think i know he pushes about 54 lbs of boost.

i will ask him tomorrow at work.
__________________
sold to: boostinhard ,dyrcivic,phatboy5015
traded to: driftt
bought from: 93turbo16,honda9369,H-T JT0220 ::csracing ::soon2brb240 ::Honda4CX-T :: b18TurboEF:
bought from:95_integra [img]http://images.honda-tech.com/set1/smile/emthdown.gif[/img]

[url="http://www.torqueaddicts.net"]http://www.torqueaddicts.net[/url]
95cxh22a is offline   Reply With Quote
Old 05-01-2005, 09:30 PM   #23
B*a*n*n*e*d
 
Join Date: Apr 2003
Location: Nampa, ID, US
Posts: 7,540
iTrader Rating: (0)
Default

Do that cuz it woul dbe nice to know, as a dealer of BullyDog product, if anyone else has the twin-turbo up their sleeve.
Blanket Jackson is offline   Reply With Quote
Old 05-01-2005, 10:33 PM   #24
Honda-Tech Member
 
booja's Avatar
 
Join Date: Feb 2003
Location: houston, tx, usa
Posts: 529
iTrader Rating: (0)
Send a message via AIM to booja
Default

before i got my car tuned it use to make a loud sucking sound... just air rushing in.

then after i got it tuned it made a loud *** whistling noise. i found that kinda weird.

it was real loud. kinda cool... i liked it.
booja is offline   Reply With Quote
Old 05-02-2005, 12:03 AM   #25
B*a*n*n*e*d
 
Join Date: Apr 2003
Location: Nampa, ID, US
Posts: 7,540
iTrader Rating: (0)
Default

My Eclipse turbo is very loud, I am runnin a screen instead of an air filter.
Blanket Jackson is offline   Reply With Quote
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
REALLY loud whistle at idle. Can't find leak... Aaron92SE Honda Prelude 8 05-10-2012 07:57 AM
TN 03 Powerstroke F250, lifted, upgrades, 87k miles 92VXeg Vehicles for sale 16 09-20-2010 02:45 PM
Why do diesel engines give superb torque numbers? ware General Discussion and Debate 58 07-27-2009 11:04 AM
Any way to stop my Intake from Whistling? OldSchoolHatch Honda CRX / EF Civic (1988-1991) 13 05-15-2003 10:10 PM
Wierd whistling noise......help! Petah Honda Civic/Del Sol (1992 - 2000) 12 06-20-2002 09:57 PM


Tags
05, 1993, 73, cummins, good, integra, loud, louder, make, powerstroke, truck, turbo, turbos, whistle, whistles

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



Join Honda-Tech.com

All times are GMT -8. The time now is 03:30 PM.



2014 Copyright, InternetBrands Inc.
Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.

Honda and the Honda marquee are registered trademarks of the American Honda Motor Company, Inc. Neither American Honda Motor Company nor its subsidiaries or affiliates shall bear any responsibility for Honda-Tech.com content, comments, or advertising. Honda-Tech.com is not affiliated with American Honda Motor Company in any way. American Honda Motor Company does not sponsor, support, or endorse Honda-Tech.com in any way. Copyright/trademark/sales mark infringements are not intended or implied.
Emails & Contact Details