LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

removing emissions question!!!!

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Old Apr 9, 2010 | 03:34 PM
  #16  
SnakeOiler's Avatar
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From: Fredericksburg, VA
Originally Posted by z28beast
will removing egr hurt my engine in any way?
refer back to what Injuneer said


Originally Posted by z28beast
i dont drag race but i hate those ugly things on my engine...
You can't even see it.



Originally Posted by z28beast
it also makes the engine bay harder to work in..
It's not in the way of anything.
Old Apr 9, 2010 | 03:50 PM
  #17  
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Snake does have a point. It's not really in the way of anything.
Old Apr 9, 2010 | 05:05 PM
  #18  
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Originally Posted by FastandBlue
Injuneer, what about OBDII? I had a couple problems with mine a while back and it was giving me problems even though the relay and fuse was good (a hose had melted shut). Maybe it was a secondary problem?
Your 95 is OBD-I. Or are you asking about some previous vehicle?

Originally Posted by z28beast
ok so i have no emissions to pass since i live in mi... will removing egr hurt my engine in any way? i dont drag race but i hate those ugly things on my engine... it also makes the engine bay harder to work in... any how toos?
I built an 800HP nitrous motor. I run an aftermarket ECU that is capable of managing a 2-stage 300HP dry nitrous system. But I kept the stock PCM wired in parallel, to 1) run the speedometer; 2) to operate the "stepper" IAC motor (MoTeC that I have can't do that) and 3) to keep ALL the emissions functioning - AIR, EGR, EVAP. None of those 3 systems had any negative affect on my performance. The EGR was not in the way of anything, and wasn't even visible.

Originally Posted by z28beast
come on guys...will removing my egr hurt my engine in any way??? will it cause detonation?? also any how tos would be awesome please guys.
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Old Apr 14, 2010 | 09:50 PM
  #19  
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From: East Detroit/Macomb, MI
ok so i still have the engine out and im installing the cc 304 into it and eventually having a tune done.....is it going to in any way hurt my engine to remove the egr system and the air system??? please just give me a rock bottom answer
Old Apr 14, 2010 | 11:32 PM
  #20  
97 Comp T/A's Avatar
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From: LI, NY
What headers are you using? If you have something similar to the Kooks street headers with EGR and AIR fittings you might as well just leave them in. If you have race/super comp headers you should probably take the two out because they will be serving no purpose. As already mentioned, the EGR is hardly visible but the AIR system removal cleans up the engine bay a little bit by removing the thick black hoses.
Old Apr 15, 2010 | 04:07 PM
  #21  
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From: East Detroit/Macomb, MI
Originally Posted by Z28Roxy
Short answer:

You'll be fine.

Long(er) answer:

The air pump does nothing to your engine. It just helps your cats work better when the exhaust/engine is cold.

When you upgrade your cam, you get more overlap, which gives more of an EGR-like effect - so you need the EGR less than a stock cammed engine does.
ok i have a cc 305 going into it....and as far as the air system what do i do with all the connectors for the hoses just tape them or what? and btw thanks for the rock bottom answer...thats what i have been looking for
Old Apr 15, 2010 | 04:39 PM
  #22  
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From: East Detroit/Macomb, MI
Originally Posted by Z28Roxy
There are a few options.

IMHO the best way to do it is remove the entire system other than the fuse and pigtail (wrap it in electrical tape).

Remove the air pump and the bracket that bolts to the engine block. Remove all the hoses and metal piping. Then get some pipe plugs for your headers or manifolds. Or if you're doing headers, get non-emissions ones (I wish I had non emissions headers).
ok so i just pull it all off? my engines outta my car so any pics would make life awesome since i have hoses all over
Old Apr 15, 2010 | 10:18 PM
  #23  
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Hey there fellow Michigander! Just zip tie the connectors from the deleted EGR and Air Pump system out of the way. Then since you have headers just block off the ports on your intake and if your headers have ports to allow for the EGR connections just block them off. Or...... I just chopped mine off with a cut off wheel and welded the hole up Good Luck with the build, and checkout www.mifbody.com its the local Michigan F Body board.
Old Apr 15, 2010 | 10:24 PM
  #24  
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From: East Detroit/Macomb, MI
Originally Posted by bumpin_z
Hey there fellow Michigander! Just zip tie the connectors from the deleted EGR and Air Pump system out of the way. Then since you have headers just block off the ports on your intake and if your headers have ports to allow for the EGR connections just block them off. Or...... I just chopped mine off with a cut off wheel and welded the hole up Good Luck with the build, and checkout www.mifbody.com its the local Michigan F Body board.
lol kk will do.. ill check it out...good too see us Michiganders sticking together lol
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