LLY Turbo Whistle [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: LLY Turbo Whistle


sp33d
12-31-2004, 04:27 PM
Just curious to know what the turbo whistle on the LLY VVT is like? I test drove one and it seemed to be a bit louder than a stock LB7, but no where near as loud as my LB7. With an AFE intake does it get louder? Anything else make it louder? Whistle loudness is a cool factor for me so I need all I can get :ro)

partsguy662
12-31-2004, 04:36 PM
sp33d - you need to hear one with aftermarket exhaust sometime.especially with the high idle function working...when I fire mine up a work and go back inside, the guys think there is a jet about to take off in the parking lot http://www.dieselplace.com/forum/images/smilies/hihi.gif

sp33d
12-31-2004, 05:24 PM
That's what I like to hear, and hear! :) I will hear one with an aftermarket exhaust very soon.

_nar_
12-31-2004, 10:02 PM
Mine seems to have a nice little whistle right now, so I can't wait to get it straight piped and see how it sounds...

lakingslayer
12-31-2004, 11:21 PM
Get CATless with an aftermarket exhaust and EGR defeater and you should have a good increase of turbo whistle.

Aron420
01-01-2005, 12:50 AM
straight piped kicks ass, I love the sound.

jmg343
01-01-2005, 04:39 AM
i gotta 5" straight and my truck sounds like a fighter jet. the turbo whistles so loud and clear that it concerned me at first, i thought it was gonna go so hard it was gonna blow itself up. But its fine and sounds SICK!!!

Melvin Hatcher
01-01-2005, 07:51 AM
i gotta 5" straight and my truck sounds like a fighter jet. the turbo whistles so loud and clear that it concerned me at first, i thought it was gonna go so hard it was gonna blow itself up. But its fine and sounds SICK!!!Do you still have your cat installed?

baimpala
01-01-2005, 09:21 AM
I've seen at least one person mention that getting the reflash done seems to make the turbo whistle louder. . . Maybe because the engine is quieter?

I never really thought my turbo was that loud until I had someone say they thought it sounded great. Maybe it's just harder to hear inside the cab. ratlover also mentioned that putting an AFE II on made it sound like a 'banshee' IIRC.

Dennis

vetterdstr
01-01-2005, 09:55 AM
In its stock form the whistle can be heard very well in the cab...

I have to laugh at this kind of thinking though... because I came from a Corvette Forum where we were constantly modding our cars to the hilt.. looks like you guys are just as bad as the Corvette guys!! ):h :ro)

Here is a pic of my setup.

VR

http://forums.corvetteforum.com/photopost/data/1078/11249vetterdstr-4.JPG

jmg343
01-01-2005, 02:43 PM
no cat here

Melvin Hatcher
01-01-2005, 05:29 PM
no cat hereAny SES engine lights or codes set?

dpower
01-01-2005, 06:50 PM
vetterdstr....actually I think we may be worse....at least your not modding the snot out of something you depend on for a daily driver!! Awesome lookin vette by the way...that may make Mcrat jealous(Mcrat is a member on the board as well...and also drag races a vette)

Z71 Grizzly
01-01-2005, 09:56 PM
Anybody have any sound clips of the LLY with exhaust modifications ? :) Does the whistling sound like an old Mack truck or something?

05LLY2500HD
01-01-2005, 10:11 PM
Anybody have any sound clips of the LLY with exhaust modifications ? :) Does the whistling sound like an old Mack truck or something?Yeah that would be great, anyone? I am planning on exhuast soon, straight pipe may be the way to go.?
With "elevated idle" on it sounds bad (good) At first I thought it was gonna self destruct.

jmg343
01-01-2005, 10:23 PM
Mel-
I did get a CEL. I havent pulled the codes out of it yet but I imagine they have something to do with the EGR not having enough back pressure to function properly. I installed a fingers stick and no more light. I also unplugged my egr once the stick was in and no lights. The CEL that I got at first, when I did the exhaust but still had egr plugged in, scared me at first but after some research I found out why it most likely came on and that there was nothing wrong or forcasted in the near future. The new sound my truck had too it wasnt what I expected either and added to my fears. But thanks to the fingers stick and a little getting used to I love the whole package now.

Z71 Grizzly
01-02-2005, 10:03 PM
I listened to Brandon's sound clips but they didn't give me a good description of how the exhaust sounds at all types of driving. What does yours sound like with the 5" straight pipe on it jmg343?

jmg343
01-03-2005, 12:47 AM
Grizz
At first I wasnt too keen on it. However, once the truck warms up it sounds so evil! At idle it sounds like a jet fighter taxing down a runway but you can hear the grumble within. At 1700-2200 RPM it sounds incredible, probably the best. Above 2200 she really barks, scares the people you pass. At 75-80 on the highway it sounds real good in the cab with no radio or other noise. Some people speak of a drone, I think Ive heard/hear what they are talking about but it is definitely not a bad drone, I happen to really like it. It comes on a little stronger when you let off the throttle. Oh yeah, the turbo. The turbo whistles like hell, it rules. You cant miss it even just rolling out of your driveway. I love it.

baimpala
01-03-2005, 08:05 AM
Mel,

If you are getting or worried about the CEL, get yourself a Finger Stick. I put mine in yesterday and this thing is great. NO codes any more. Install took under an hour and I work slow. Very easy, and is pretty incognito when you are done. Unless you noticed the extra tape around the split loom, you would have a hard time noticing it.

9W3-HD
01-03-2005, 09:10 AM
The juice made my 5 inch strait pipe sound "wicked" I thought it sounded good before but now talk about a jet taking off, I coulnt believe it, no cat here either.