HIGH EGT's lbz - Page 2 - Chevy and GMC Duramax Diesel Forum

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post #11 of 42 (permalink) Old 12-25-2012, 06:45 AM
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Quote:
Originally Posted by Thebiggids View Post
Try someone elses tuning. 9 lbs and 1000* seems high. Id aay post pw and timimg but thats like giving away the tune.
It would show the beginners ,what not to do.

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new style gm exhaust manifold, banks big head wastegate, PPE boost valve, banks air intake,high idle switch in cruise control, stock but not for long
EFI live tuned by me now,dps5 switch,EGT probe and autometer boost sensor,SoCal 6spd conversion
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post #12 of 42 (permalink) Old 12-25-2012, 06:55 AM
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Quote:
Originally Posted by gmc502 View Post
It would show the beginners ,what not to do.
Not entirely, they are only pieces of the puzzle. You need allot more to look at than that to see the problem.
If you are making 9psi at cruise, the vane position is way too tight and that will cause high EGT in itself from high DP.

Si Vis Pacem, Para bellum !!!!
========================
07' Chevy Silverado HD
--CC, SB 4X4 Duramax Diesel/ 6 spd Allison Auto (PTO high idle mod)
--EFILive by KB3MMX Tuning W/ SDP Towing Twins (Billet S475 over Stock)
--SILVERLINE 4" Stainless Exhaust
--AMSOIL Synthetics and filtration bumper to bumper, including Bypass
--DDM tuning HID's in Low and High Beams, 6000K Lows/4250K Highs
--PPE rear Diff cover, PPE Deep Trans Pan, PPE High Flow Manifolds and Up Pipes
--Danville 3" Y Bridge and big air intake kit / EGR delete
--Airdog II DF200 w/ CAT UHE filter upgrade...etc,etc...
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post #13 of 42 (permalink) Old 12-25-2012, 07:02 AM
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Yes, too much boost for sure. And I would think you were told the wrong size of the injectors... If He's tuning for what you were told, and they are bigger your going to dump more fuel than you think. Raising EGT's.

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EFI Live V2 w/dsp5 MAX EFFORT by Idaho Rob,
EGT's Never higher than 1150*
Cognito Braces, and ATP Sleeves, BD Manifold, ARP H.Studs, M.P. mod, MA Aluminum Bleeder, PPE Boost Valve, Banks Ram Air- Intercooler, FASS 150, LBZ FPR, Shimmed FPRV, 4" MBRP turbo back exhaust w/6"tip, Corsa Muffler
@180,000-New injectors from Lincoln Diesel, CAT Adapter/filter/spacer

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post #14 of 42 (permalink) Old 12-25-2012, 02:58 PM Thread Starter
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Wrong size of injectors? They came from industrial and said 30% over on the boxes. Im not having much black smoke now. What more info would u like?
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post #15 of 42 (permalink) Old 12-25-2012, 03:18 PM
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Oh, I didn't know if you bought the motor with the injectors already in it, and were just told they were 30 overs. I was just trying to think of what it could be... Those EGT's are crazy high.

FYI I used to run EDGE Juice with Attitude as a tuner. They are a REAL professional company that sell Thousands of units. But when I had that tuning I was getting high EGT's. Hitting 1400-1500 easy. But when I switched my tuning to ROB CODDENS the EGT's dropped drastically. I couldnt get them above 1350. This is just an example of the difference between 2 "Professional Tuners". Something to consider.

-Aaron-
Need LB7 Injectors? Check these prices out!

Lincoln Diesel Specialties
"Quality Parts and Service at an Unbeatable Price"


Or call us... 920-361-7700



SOLD
2001 GMC Sierra 2500HD, CC,SB
EFI Live V2 w/dsp5 MAX EFFORT by Idaho Rob,
EGT's Never higher than 1150*
Cognito Braces, and ATP Sleeves, BD Manifold, ARP H.Studs, M.P. mod, MA Aluminum Bleeder, PPE Boost Valve, Banks Ram Air- Intercooler, FASS 150, LBZ FPR, Shimmed FPRV, 4" MBRP turbo back exhaust w/6"tip, Corsa Muffler
@180,000-New injectors from Lincoln Diesel, CAT Adapter/filter/spacer

Air Lift, Bilstein Shocks, Leveling Kit, Recon LED tail lights & over cab lights, 20" Forged Aluminum WELD Racing Rims, 295/55/20 Nitto Trail Grappler Tires
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post #16 of 42 (permalink) Old 12-25-2012, 03:19 PM
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Send a log to Rob Codden or Kory Willis. JMO

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post #17 of 42 (permalink) Old 12-25-2012, 04:23 PM
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maybe you egt gauge is faulty???

Last edited by hypersniper; 12-25-2012 at 04:26 PM.
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post #18 of 42 (permalink) Old 12-25-2012, 05:49 PM
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Quote:
Originally Posted by mparker View Post
Wrong size of injectors? They came from industrial and said 30% over on the boxes. Im not having much black smoke now. What more info would u like?
What is your vane position, timing, rpm and commanded fuel rate at cruise.

Si Vis Pacem, Para bellum !!!!
========================
07' Chevy Silverado HD
--CC, SB 4X4 Duramax Diesel/ 6 spd Allison Auto (PTO high idle mod)
--EFILive by KB3MMX Tuning W/ SDP Towing Twins (Billet S475 over Stock)
--SILVERLINE 4" Stainless Exhaust
--AMSOIL Synthetics and filtration bumper to bumper, including Bypass
--DDM tuning HID's in Low and High Beams, 6000K Lows/4250K Highs
--PPE rear Diff cover, PPE Deep Trans Pan, PPE High Flow Manifolds and Up Pipes
--Danville 3" Y Bridge and big air intake kit / EGR delete
--Airdog II DF200 w/ CAT UHE filter upgrade...etc,etc...
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post #19 of 42 (permalink) Old 12-25-2012, 05:50 PM
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The OP already has this question posted in the EFIlive section:

http://www.duramaxforum.com/forum/ef...ml#post1876214

Boost IS NOT fine.... it's listed as 9psi at cruise there. No timing #s have been given.




.

Si Vis Pacem, Para bellum !!!!
========================
07' Chevy Silverado HD
--CC, SB 4X4 Duramax Diesel/ 6 spd Allison Auto (PTO high idle mod)
--EFILive by KB3MMX Tuning W/ SDP Towing Twins (Billet S475 over Stock)
--SILVERLINE 4" Stainless Exhaust
--AMSOIL Synthetics and filtration bumper to bumper, including Bypass
--DDM tuning HID's in Low and High Beams, 6000K Lows/4250K Highs
--PPE rear Diff cover, PPE Deep Trans Pan, PPE High Flow Manifolds and Up Pipes
--Danville 3" Y Bridge and big air intake kit / EGR delete
--Airdog II DF200 w/ CAT UHE filter upgrade...etc,etc...
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post #20 of 42 (permalink) Old 12-25-2012, 06:29 PM
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Combined your 2 threads into one.

Quote:
Originally Posted by Jeremy Clarkson View Post
Some say he was conceived in a cargo van
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