Keep the EGR? EGR bypass?
Thread Starter
Instructor
Joined: Jan 2006
Posts: 230
Likes: 0
From: Ol Dirty Durham NC
Keep the EGR? EGR bypass?
86 L98
I want to put on some Hooker 2154's and I know they don't have a EGR bung. Should I have one welded on and keep the EGR system? I'd rather take it off but I don't want to have to deal with the ECM throwing codes.
A buddy of mine (Ford guy) said he bypassed his on his Stang. Is there any way to do it with a L98? I read Vader's site and he clipped the wire coming off the EGR sensor and it didn't throw codes for his specific car. Just wanted to see what everyones opinion was of the EGR.
Thx
I want to put on some Hooker 2154's and I know they don't have a EGR bung. Should I have one welded on and keep the EGR system? I'd rather take it off but I don't want to have to deal with the ECM throwing codes.
A buddy of mine (Ford guy) said he bypassed his on his Stang. Is there any way to do it with a L98? I read Vader's site and he clipped the wire coming off the EGR sensor and it didn't throw codes for his specific car. Just wanted to see what everyones opinion was of the EGR.
Thx
Team Owner
Joined: Sep 2002
Posts: 22,209
Likes: 12
From: OBAMA IS HITLER
don't disable EGR without having yor chip re-programmed to ignore the EGR function. doing nothing but bypassing EGR will leave you more prone to detonation, and you most definitely don't want that. during EGR conditions (part throttle, under 80% TPS which is where you spend most of your life), the ECM dials in extra timing, it does so since cooler combustion temps allow for increased timing. higher combustion temps with increasing timing = more prone to detonation.
why disable EGR in the first place? folks that do this have me lost. it doesn't do squat in hurting performance by leaving it in as it should be.
i would get the hooker 2149's with the AIR and EGR hookups.
why disable EGR in the first place? folks that do this have me lost. it doesn't do squat in hurting performance by leaving it in as it should be.
i would get the hooker 2149's with the AIR and EGR hookups.
Last edited by Red Tornado; Feb 24, 2006 at 02:47 PM.
Thread Starter
Instructor
Joined: Jan 2006
Posts: 230
Likes: 0
From: Ol Dirty Durham NC
Originally Posted by Hot Rod 90
don't disable EGR without having yor chip re-programmed to ignore the EGR function. doing nothing but bypassing EGR will leave you more prone to detonation, and you most definitely don't want that. during EGR conditions (part throttle, under 80% TPS which is where you spend most of your life), the ECM dials in extra timing, it does so since cooler combustion temps allow for increased timing. higher combustion temps with increasing timing = more prone to detonation.
why disable EGR in the first place? folks that do this have me lost. it doesn't do squat in hurting performance by leaving it in as it should be.
i would get the hooker 2149's with the AIR and EGR hookups.
why disable EGR in the first place? folks that do this have me lost. it doesn't do squat in hurting performance by leaving it in as it should be.
i would get the hooker 2149's with the AIR and EGR hookups.
Team Owner
Joined: Jan 2003
Posts: 20,324
Likes: 250
From: Summerland B.C. Canada
Originally Posted by Aardwolf
"why disable EGR in the first place? folks that do this have me lost. it doesn't do squat in hurting performance by leaving it in as it should be"
Nasty carbon build up all over the intake.
Nasty carbon build up all over the intake.
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
A cooler t-stat won't help you one bit.
The t-stat is not a temperature regulator, it's a temperature setter... it will set the minimum temp, but once it gets to a temp, it won't go down.
Leave the EGR... it actually HELPS performance and helps emissions. I call that a win-win.
The t-stat is not a temperature regulator, it's a temperature setter... it will set the minimum temp, but once it gets to a temp, it won't go down.
Leave the EGR... it actually HELPS performance and helps emissions. I call that a win-win.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Team Owner
Joined: Oct 2004
Posts: 81,241
Likes: 3,063
From: altered state
St. Jude Donor '05
I believe the EGR helps cool the combustion chamber, which helps thwart detonation. Keeping it is a plus in my book. Had problems with mine to, just replace all of it next time the plenum is off and forget about it. Parts are fairly cheap.
Large Impressive Member
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
"why disable EGR in the first place? folks that do this have me lost. it doesn't do squat in hurting performance by leaving it in as it should be"
Originally Posted by Aardwolf
Nasty carbon build up all over the intake.
Also, once you install a cam with some overlap, the EGR's function becomes redundant anyway, which is why the LT4 didn't even require one from the factory to meet emissions. Besides, it's just one more worthless piece of crap in the way under the hood. I'll run high flow cats but the AIR and EGR are history.
