I'm wanting to pick up some 3 inch boost tubes for my 06 LLY. I can't wrap my head around why GM went from the 3 inch in the LB7 to the 2.5... I'm thinking that is one of the reasons the LB7's got better mileage.
I find the 1 AFE pipe, but I know there are several boost tubes and only replacing one seems kinda pointless to me. Any help is appreciated.
__________________ 05 LLY K&N Intake and 4'' Turbo back strait exhaust. PPE Hot + 2 / PPE BOOST controller Sun coast IV BY:Bobby Czeck
85 S10 383/ TH400
07 RMZ 450 F
I got my trans wa hoooooo!
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I can't wrap my head around why GM went from the 3 inch in the LB7 to the 2.5
Sean
One reason was probably for quicker turbo response!
__________________ Pickup: 2002 Chevrolet 2500HD Duramax/Allison Reg. Cab with
Royal Utility bed and racks
Tuner: PPE Standard on level 2.
Exhaust: Banks Dynaflow 4" Turbo Back
Intake: Stock with KN Filter
Turbo: Stock, Banks Big Head, Modded Intake Horn
Transmission: Stock
Suspension: Firestone Air Bags
Exterior: Pull out towing mirrors, Spray in bed liner, Bedslide (roll out bed),
Convert-A-Ball Hitch, Air Horn (under Hood) Bug guard, window visors
Mileage: 151,000 No Rust
actually that doesn't make sense....you want as most flow as possible post turbo for the easiest flow to spool the best
Yes but it has to pump that much more air to get the same boost pressure. Right?
__________________ Pickup: 2002 Chevrolet 2500HD Duramax/Allison Reg. Cab with
Royal Utility bed and racks
Tuner: PPE Standard on level 2.
Exhaust: Banks Dynaflow 4" Turbo Back
Intake: Stock with KN Filter
Turbo: Stock, Banks Big Head, Modded Intake Horn
Transmission: Stock
Suspension: Firestone Air Bags
Exterior: Pull out towing mirrors, Spray in bed liner, Bedslide (roll out bed),
Convert-A-Ball Hitch, Air Horn (under Hood) Bug guard, window visors
Mileage: 151,000 No Rust
Yes but it has to pump that much more air to get the same boost pressure. Right?
no.....thats why the new boost turbo increases boost by a pound or so...
the compressor is doing the same work its just getting choked up afterwords....its like taking the air line your using to fill up a tire and parking your truck on the hose....the compressor is doing the same thing but i bet your getting less air out the other end into the tire
__________________
I'm Beech (yep real first name)
LLY Cc/sb 4x4 RED
Quote:
Originally Posted by Sean S
right they just show n' shine aint spoolin that turbine
Quote:
Originally Posted by McRat
I think the Cummins guys are already datalogging in a very sophisticated manner:
"Heck Bubba, they ain't much smoke, I still sees the sun!"
"You right Jimbo, needs some of them .090" x 6 sticks prolly."
__________________ Pickup: 2002 Chevrolet 2500HD Duramax/Allison Reg. Cab with
Royal Utility bed and racks
Tuner: PPE Standard on level 2.
Exhaust: Banks Dynaflow 4" Turbo Back
Intake: Stock with KN Filter
Turbo: Stock, Banks Big Head, Modded Intake Horn
Transmission: Stock
Suspension: Firestone Air Bags
Exterior: Pull out towing mirrors, Spray in bed liner, Bedslide (roll out bed),
Convert-A-Ball Hitch, Air Horn (under Hood) Bug guard, window visors
Mileage: 151,000 No Rust
you can get just the one side from banks now, and from what i've heard its a little bit better than the afe, also cheaper...i'm going with the banks one pretty soon...dont know how yall feel about linking to other forums but they are available from jbarker at banks on diesel place heres an install thread, its on a lmm but it fits our trucks too Banks LMM Boost Tube Replacement - Diesel Place
__________________ 06 GMC LBZ
35" Toyo MTs on 20"s, Evo Race, Cat Delete, EGR Blocked,
AFE Intake, HD Tie Rod Ends and Steering Support, PCV Reroute,
Diamond Eye Downpipe, MBRP 4" all the way back
Transgo waiting to go in
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right they just show n' shine aint spoolin that turbine
.....all in all its supposed to be a great mod...its on my to-do list
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