| Premium Membership | |
If you would like to help support Duramax Forum, get some sweet stickers for your truck and more priveleges on Duramax Forum.com, click here |
|
| 06-07.5 LBZ & LLY Performance Parts Discussion Discussion of Performance Parts For the 06-07.5 LBZ/LLY Duramax Trucks No Advertising |
 | | 
07-13-2008, 06:15 PM
|
eBay Motors
#1 (permalink)
| | Junior Member
Join Date: Jul 2008 Location: Arvada,CO
Posts: 3
| Down Pipe Performance??
I was looking at getting a down pipe for my 06' duramax and I was wondering if you see performance increases. Has anyone ever dyno a before and after installation? Will it help in fuel mileage? Is the turbo quicker to spool up? Is there a reduction in smoke under load? Thanks and sorry for all the questions. | 
|  | |
Sponsored Links
| Advertisement
| | |
07-13-2008, 06:28 PM
|
eBay Motors
#2 (permalink)
| | DuramaxForum Fanatic
Join Date: Mar 2008 Location: SoCal
Posts: 557
| Lets the engine breath a better with less restrictions.
__________________
2002 Chevy LB7 Crew Cab
Bone Stock for right now!! Looking to add some real power>
16 inch Helo Rims and 285 Nitto Terra Grapplers
Thank you Duramax Forums | |
| | |
07-13-2008, 06:57 PM
|
eBay Motors
#3 (permalink)
| | DF Sponsors
Join Date: Mar 2008 Location: Columbus,IN
Posts: 2,154
| like he said ^^ and it will have no effect on smoke
__________________ 07.5 Chevy Summit White Reg cab LMM, Quadzilla steath 2, 5" MBRP straight pipe, 5" turn-down DPF Deleted, Cobalt boost & pyrometer, line of fire and ice. Meyer Performance & Fabrication, LLC Home of your diesel performance needs. www.meyerperformance.com (812)-344-4421 Tyler | |
| | |
07-13-2008, 07:17 PM
|
eBay Motors
#4 (permalink)
| | Gear Jammer...
Join Date: May 2006 Location: Mt. Pleasant PA
Posts: 1,892
| Folks who have dynoed them have seen upper rpm gains in hp and tq and it carries the curve out further in the rpms with less drop after peek but were only talkin 10-15 hp here not much. the biggest gain you will se is in egt drop almost 150-200 under WOT runs or towing!
__________________ 05 Chevy 2500HD dark blue reg cab ZF-6 speed/W South Bend Clutch ,Power by EFI Live W/Dsp2 , PPE GT4094R, ATS CP3x2, Modified Volant intake, MBRP front pipe, 4" side pipe, Holley Blue lift pump, Isspro gauges,Cognito Braces, SD Centerlink, Caltracs, ATS Tie Rod Sleeves Best ET 12.53@ 109 mph 04.5 Chevy 2500HD, silverbirch, D/A, CC/SB , EFI live, SCIV w/ATS 5Star converter,McRat shim mod, Wicked Diesels modded FPR, Kennedy dual lift pump, Modified Volant intake, Cognito Braces,CUD tie rod Sleeves, EGR BLocker,Diamond eye Down pipe, 4" dual exhaust, Elocker, MA Tcase Fix, B&W GN Hitch Best ET 13.53 @ 101mph | |
| | |
07-13-2008, 07:49 PM
|
eBay Motors
#5 (permalink)
| | Duramax Forum Moderator
Join Date: Oct 2007 Location: Greenville, KY
Posts: 2,531
| I noticed a pretty good drop in egts, but i also installed the BD manifold at the same time. The two together dropped temps by around 250-300 degrees while racing.
__________________ KYLE 
05 Chevy LLY Crew Cab LT Dually 4x4, Crank it up Diesel Tie rod sleeves and centerlink, BD Diesel Remote Fuel Filter, EGR Blocked, TTS Dual Lift Pumps, FPRV Shim, Bullydog Outlook Monitor, AFE Stage 2 CAI, BD Diesel Manifold, Diamond Eye Turbo Direct Pipe, Diamond Eye 5" exhaust straight piped, Level Kit, Suncoast Stage IV w/ 1056 Torque Converter and Allison Deep pan EFI Live Tuned by IdahoRob!!!!
1981 VW Rabbit Pickup, 1.6L Diesel, 4 Speed Manual, 35 MPGs | |
| | |
07-13-2008, 08:01 PM
|
eBay Motors
#6 (permalink)
| | Duramax Forum Supporter
Join Date: May 2008 Location: Watertown,NY
Posts: 32
| I noticed less lag with mine and a little faster turbo spool on top of the egt drop it's a good investment | |
| | |
07-14-2008, 11:08 AM
|
eBay Motors
#7 (permalink)
| | Junior Member
Join Date: Jul 2008 Location: Arvada,CO
Posts: 3
| Anyone seeing an improvement in mileage? | |
| | |
07-14-2008, 11:15 AM
|
eBay Motors
#8 (permalink)
| | Gear Jammer...
Join Date: May 2006 Location: Mt. Pleasant PA
Posts: 1,892
| No improvement here with the pipe install, The variable geometry turbo is still the biggest restriction causing poor milage @ crusing speeds on these trucks!
__________________ 05 Chevy 2500HD dark blue reg cab ZF-6 speed/W South Bend Clutch ,Power by EFI Live W/Dsp2 , PPE GT4094R, ATS CP3x2, Modified Volant intake, MBRP front pipe, 4" side pipe, Holley Blue lift pump, Isspro gauges,Cognito Braces, SD Centerlink, Caltracs, ATS Tie Rod Sleeves Best ET 12.53@ 109 mph 04.5 Chevy 2500HD, silverbirch, D/A, CC/SB , EFI live, SCIV w/ATS 5Star converter,McRat shim mod, Wicked Diesels modded FPR, Kennedy dual lift pump, Modified Volant intake, Cognito Braces,CUD tie rod Sleeves, EGR BLocker,Diamond eye Down pipe, 4" dual exhaust, Elocker, MA Tcase Fix, B&W GN Hitch Best ET 13.53 @ 101mph | |
| | |
07-14-2008, 10:40 PM
|
eBay Motors
#9 (permalink)
| | Super Man Moderator
Join Date: Oct 2006 Location: Irwin PA
Posts: 2,691
| Quote:
Originally Posted by Dehorton  I was looking at getting a down pipe for my 06' duramax and I was wondering if you see performance increases. Has anyone ever dyno a before and after installation? Will it help in fuel mileage? Is the turbo quicker to spool up? Is there a reduction in smoke under load? Thanks and sorry for all the questions. | Just double checking but do you mean the actual down pipe tube going fro the turbo to the exhaust? Not the exhaut peace thats after the down pipe and has the CAT in it?
I seen some referr to that as the downpipe 
__________________ Jason 2006 Silverado Shortbed Crew Cab LBZ Escalade handles, Line-x, Painted bumpers and towing mirrors, Tinted Front Windows & Tail lights 2 MTX 10in Subs & Punch 250amp in a custom box. Autometer Ultralite II Pyro & EGT gauges with pillar pod MBRP Turbo Back stainless exhaust (Straight piped), AFE Stage II Intake, PPE Hot+2 265/75/16 Nitto Terra Grapplers on Gear Alloy wheels Lost Kitty Reward if found!! 1999 Ford F-550 Powerstroke Tow Truck-Wrecker **Jerr-Dan Bed, S&B Intake  | |
| | |
07-15-2008, 04:16 AM
|
eBay Motors
#10 (permalink)
| | Junior Member
Join Date: Jul 2008 Location: Arvada,CO
Posts: 3
| The down pipe from the turbo. | |
| | |
Sponsored Links
| Advertisement
| | | Thread Tools | | | | Display Modes |  Linear Mode | 
Posting Rules
| You may not post new threads You may not post replies You may not post attachments You may not edit your posts
HTML code is Off | | | | |
