EGR Blocking, Pros & Cons of Do It. - Diesel Forum -
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Old 11-15-2010, 09:19 AM   #1 (permalink)
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EGR Blocking, Pros & Cons of Do It.

Hi to all,

Could someone tell me the pros and cons of installing EGR blocks? I have read some about the waste-gate function of the EGR and I am trying to understand the effect of blocking it with and without tuning. The blocking could be detrimental? When it is convenient and when it is not? Is it recomended when you are looking for motor reliability and durability?
2008 F250 FX4, CC, SRW, SWB, 6.4L Diesel
Two tone paint Oxford White w/Dark Shadow Grey lower accent, ESOF, Stabilizer Package, TowCommand system,
20 x 9 Black XD Revolver w/Nitto Terra Grapplers 295/60/20, Dieselsite 4WD ESOF Hose Kit,
H&S Mini Maxx, SDP Downpipe/CAT/DPF Delete, Banks Monster Exhaust Dual-Tip, Turbo Socks, DEI Exhaust Wrap (half downpipe),
Banks RamAir Intake, Dieselsite Boots Kit, MBRP Intercooler Tube, Flo-Pro EGR Delete Kit,
Power-Stroke Connection CCV System, Dieselsite Coolant and Transmission Oil Filtration Systems, Fumoto Oil Drain Valve

Last edited by Caribe_Pick_up; 11-15-2010 at 09:53 AM.
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Old 11-15-2010, 05:41 PM   #2 (permalink)
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I would only do it if you have the EGR turned off. Otherwise, you'll just be recircuating hot, uncooled exhaust which will probably decrease power and mileage even more.

I would definitely do it if you are planning to continually run a high power tuner that gives you the ability to turn the EGR off.

Pros: You won't hydrolock your engine in the even of a leak. It will just leak out at the block off plates.
Cons: It's illegal on the road and could cost you $10K if you are caught (not likely).
2009 F-250 6.4L PSD CC SB Lariat Ultimate FX4, 3.73LS

Mod List:
-51 gal RDS direct fill auxillary fuel tank
-SEIC High Idle
-H&S Black Maxx Running the Hot Damn +300 Tune
-S&B Dry CAI
-Diamond Eye 5" Turbo Back Race Exhaust
-Custom 10" Sub Box Behind the Center Console
-Coastaltech SYNC-LP1 Lockpick
-Westin Bull Bar
-Westin Taillight Guards
-Recon LED Smoked Dodge Cab Marker/Clearance Lights
-Billet Fender Vent Inserts
-Zone Offroad 4" Lift
-20x10 BMF Novakane 8's
-35x12.50r20 Nitto Trail Grapplers
-'11 Super Duty Rear Seat Cargo Tray w/410W Power Inverter
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Old 11-21-2010, 05:12 PM   #3 (permalink)
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if u block the gas side then you loose the system ability to relieve overboost. with variabke geomtetry staged turbo charging might not be much of a deal.

you bascially put blanking plates in at each end of the coolers. The valve continues to cycle but nothing happens. Water side doesnt care.

by itself probably doesnt buy you much by itself
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Traded March 2013
2008 F450 CC Lariat White/Gold, JAD Solutions Lights, 62 Gal Titan, B&W Hitch, Gold Remote Start, TruckTrunk box, Viair 550+2x2.5gal receiver, 2010 NAV and Sync
Traded In Nov 07:
2003 F250 CC LB XLT 4x2 PowerStroke, Captains Chairs, White/Parchment, Torqshift, Heated Mirrors, Trailer hitch
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Old 11-21-2010, 07:10 PM   #4 (permalink)
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I would think that you would need to modify the wastegate so you can bleed off excessive boost.
08F250 CC 6.4 PSD
Banks 6 gun/ram air
40' Stoneridge 5th wheel, coming in at 15.4K.
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Old 12-04-2010, 01:53 AM   #5 (permalink)
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Eric at IDP talked me out of a delete kit as did Aaron at rudys. They summed it up, if I wasn't spending my time racing, sled pulling or pulling a lot of very heavy loads it would not be worth the expenience until the warranty is out. IF you have to take the vehicle back for some thing, the egr delete it NOT gonna help you get any warranty work done since it is not really reversable.
I'll do it in 2 more years when my warranty goes out.

Eric also sent me an email also stating that he does not have a delete on his at this time and highly recommended against block off plates.

Anyway thats what i learned-ed
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sold Sweet lookin' BLACK 02 F-350 XLT CC PSD
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Old 03-30-2011, 09:49 AM   #6 (permalink)
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i wouldnt worry about the waste gate aspect of the egr... hell everyone took them off of 7.3s and 6.0s.. but my truck plugged the egr after 4000 miles with dpf delete and xtreme sct tune so i am going to put on the block off plates on.
2008 ccsb lifted lariat dpf delete pipe to magnaflow dual exhaust, sct livewire, Tyrant Diesel custom tunes on the way!
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