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josh2500 12-11-2005, 05:20 PM well i currently have a 2500hd duramax quad cab short bed 4x4. ive installed these performance upgrades. quadzilla programer stacked with an edge power chip, electric wastegate control and a methanol kit. i ordered a trans upgrade, (ats) friday. im looking for a lift pump. my question is, my truck didnt have a cat and i ditched my muffler so its a straight pipe, i was looking for the whistle/jet sound but instead i got more or a "flowmasterish/bigblock sound" what do i need to do to accomplish this sound? sorry if this question has been answered already but im really curious. thanks in advance.
josh
Mackin 12-11-2005, 05:44 PM Josh
Welcome to the Place What year Duramax for starters?A free flow air cleaner will give more Turbo whistle.
DMAX KING 12-11-2005, 06:15 PM Josh welcome, there is a few threads on this and the place is full of knowledgable people. Take you time read some threads and do some searchs.
dozerboy 12-11-2005, 08:47 PM A bigger hairdryer would do it.
josh2500 12-11-2005, 10:07 PM im pretty sure its a 04 with the lly, how do i find out fo sure? thanks guys, what would be the best intake for the money? a k&n system or airraid? thanks again.
josh
Diesel-N-Dust 12-11-2005, 10:10 PM AFE stage 2 will give you more turbo whistle.
RichLockyer 12-11-2005, 10:12 PM If you have a wastegate, it's an LB7.
socaldieseltech 12-12-2005, 12:05 AM im pretty sure its a 04 with the lly, how do i find out fo sure? thanks guys, what would be the best intake for the money? a k&n system or airraid? thanks again.
josh
Look at the 8th digit of your VIN. If its a "1", its an LB7. If its a "2", its an LLY. If you're going to put an intake on, I'd recommend AFE products over K&N, or airraid.
DURAtotheMAX 12-12-2005, 12:11 AM i was looking for the whistle/jet sound but instead i got more or a "flowmasterish/bigblock sound" what do i need to do to accomplish this sound? .
answer: an LLY):h
A 'cold air intake' such as an AFE will gain you a little bit of whistle, but only on accelleration and spool up. Also, removing the big black plastic "box" on top of the engine (that says "6.6 Turbo Diesel") will help slightly. If the truck doesnt have a cat, its probably an LB7. You would definetly know (by sound) if you had a catless LLY. If you stand behind my truck (i took the cat off) when its idleing and dont pay attention to the low rumble up front from the engine, all you hear at the back out of the exhaust is WHOOOOOSSSSHHHHHHHHHHHHHHHH like a compressed air blow gun with a little whistle in the background. The LB7's definetly have a different sound. Just like you described it. More of a low rumbling.
---Ben
Chevyduty84 12-12-2005, 12:15 AM Check your vin numbers 8th digit. Lb7 is a 1 lly is a 2
also lb7 has more of a rattle sound and an lly has more whistle.
josh2500 12-12-2005, 09:10 PM well i checked my vin, and its a "1" so i have an LB7. thanks for the help, so an intake will solve my whistling addiction. how can i get the turbo to spool up faster? the wastegate control doesnt help, i think it was a waste of money. thanks for all the replys. i appreciate it!!!!
josh
Mackin 12-12-2005, 09:19 PM well i checked my vin, and its a "1" so i have an LB7. thanks for the help, so an intake will solve my whistling addiction. how can i get the turbo to spool up faster? the wastegate control doesnt help, i think it was a waste of money. thanks for all the replys. i appreciate it!!!!
josh
That and a free flowing exhaust,just don't be looking for addition HP but it will feel like it seat of the pants because of quicker spool up :exactly:
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