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how to run the EGR in a closed loop

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Old Feb 10, 2008 | 02:53 PM
  #1  
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From: parma,OH
Car: 91 camaro RS
Engine: 350, forged 355 in the works
Transmission: 4 speed goin to th400
Axle/Gears: stock 9bolt, 3.27
how to run the EGR in a closed loop

im swapin a 350 into my camaro and i wan to un the egr in a closed loop so it runs a lil rich, just cant find out how to do so ,

thanks for the help
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Old Feb 11, 2008 | 07:34 PM
  #2  
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From: waterford, MI
Car: 89 RS
Engine: 305 carbed
Transmission: 700R4
Axle/Gears: 3.42 auburn posi
Re: how to run the EGR in a closed loop

egr has little to do with fuel mixture just so you know. it doesn't richen or lean the engine out any. it simply uses exhaust gas to dilute the incoming intake charge and cool the combustion chamber and keep detonation down as well as burn any fuel that might have made it through the first time.
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Old Feb 12, 2008 | 02:42 PM
  #3  
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From: parma,OH
Car: 91 camaro RS
Engine: 350, forged 355 in the works
Transmission: 4 speed goin to th400
Axle/Gears: stock 9bolt, 3.27
Re: how to run the EGR in a closed loop

well i am kinda new at this thanks and detonation is just ignition b4 it is fully compressed correct ?
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Old Feb 12, 2008 | 03:59 PM
  #4  
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From: Manchester, CT + Nashua, NH
Car: 90 Firebird Formula
Engine: LO3
Transmission: T5
Axle/Gears: 3.08 one wheel peel
Re: how to run the EGR in a closed loop

Originally Posted by 5.0slayer
well i am kinda new at this thanks and detonation is just ignition b4 it is fully compressed correct ?
That is called pre-ignition.

There is 2 ways gas can burn. It can Deflagrate, which is like if you lit off a bucket of gas. It wont explode, it will just burn untill it works its way all the way through the fuel.

Detonation is when something explodes. Basically, all the fuel in the combustion chamber would explode all at once (imagine dynamite).

I believe they call pre-ignition "knock" and detonation "ping"

Somebody correct me if I am wrong, thanks.
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Old Feb 12, 2008 | 04:05 PM
  #5  
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: how to run the EGR in a closed loop

It's a little more complicated than that, but detonation or ping happens when the mixture burns earlier than it should, for a variety of reasons.
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Old Feb 15, 2008 | 08:47 PM
  #6  
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From: parma,OH
Car: 91 camaro RS
Engine: 350, forged 355 in the works
Transmission: 4 speed goin to th400
Axle/Gears: stock 9bolt, 3.27
Re: how to run the EGR in a closed loop

witch could cause your crank to bend buy not being at top dead center and trying to force it the opposite direction? but at the end of it it would be bad all togeather rite?
so should i keep the egr or no because i also have the 305ci heads on but have ported and polished my self and have herd they too well cause detonation and timeing problems, but i am going to get l31 vortec heads ported n pollished too but not to soon so,

and thanks for the help guys
----------

Last edited by 5.0slayer; Feb 15, 2008 at 08:56 PM. Reason: Automerged Doublepost
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Old Feb 15, 2008 | 08:55 PM
  #7  
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From: parma,OH
Car: 91 camaro RS
Engine: 350, forged 355 in the works
Transmission: 4 speed goin to th400
Axle/Gears: stock 9bolt, 3.27
Re: how to run the EGR in a closed loop

o and the heads are lo3 187 heads, and is it better to keep or loose the egr power wise
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Old Feb 17, 2008 | 09:21 PM
  #8  
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From: Manchester, CT + Nashua, NH
Car: 90 Firebird Formula
Engine: LO3
Transmission: T5
Axle/Gears: 3.08 one wheel peel
Re: how to run the EGR in a closed loop

Personally, I would keep the EGR. There is no reason to really delete it, unless you get an intake manifold that doesent support it. It helps the motor too I heard.

Maybe if your car is knocking and pinging, you could try to retard your timing a little. Mine was knocking really bad under load, so I retarded it back to 0* base timing, and that helped alot. It still knocks alot, but only when there is high-load at low RPM (like slipping the clutch, or trying to climb a steep hill in 4th gear)
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Old Feb 17, 2008 | 09:26 PM
  #9  
5.0slayer's Avatar
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From: parma,OH
Car: 91 camaro RS
Engine: 350, forged 355 in the works
Transmission: 4 speed goin to th400
Axle/Gears: stock 9bolt, 3.27
Re: how to run the EGR in a closed loop

actualy i goe an elelbrock torker intake for a carb was just gona nake a plate for the tbi so im pritty sure it does not have the egr so is there any thing else i can do , because i herd the 305 heads will also cause ping,
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Old Feb 17, 2008 | 09:40 PM
  #10  
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: how to run the EGR in a closed loop

You could toss that garbage old intake in the trash, to start.
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Old Feb 17, 2008 | 09:48 PM
  #11  
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From: Manchester, CT + Nashua, NH
Car: 90 Firebird Formula
Engine: LO3
Transmission: T5
Axle/Gears: 3.08 one wheel peel
Re: how to run the EGR in a closed loop

oh I didnt read the part about the 305 heads on a 350. I guess you could find some heads with a bigger chamber, like 76cc or something.
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Old Feb 17, 2008 | 09:51 PM
  #12  
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From: parma,OH
Car: 91 camaro RS
Engine: 350, forged 355 in the works
Transmission: 4 speed goin to th400
Axle/Gears: stock 9bolt, 3.27
Re: how to run the EGR in a closed loop

well its not old i just got it , but the stock intake is worse then that , so is there any thing else i could or no , i want to use the new intake.so if any thing how do u run it in a closed loop if you no. what if i just pull the fuse for it if there is one
----------
eventualy i will im lookin to get 202 heads or vortec

Last edited by 5.0slayer; Feb 17, 2008 at 09:52 PM. Reason: Automerged Doublepost
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Old Feb 17, 2008 | 09:55 PM
  #13  
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: how to run the EGR in a closed loop

Even if it's brand new it's still an old, outdated design.
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Old Feb 17, 2008 | 10:01 PM
  #14  
5.0slayer's Avatar
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From: parma,OH
Car: 91 camaro RS
Engine: 350, forged 355 in the works
Transmission: 4 speed goin to th400
Axle/Gears: stock 9bolt, 3.27
Re: how to run the EGR in a closed loop

i can c that i got it because i was told that it woulg give me more torque, and it the same as useing any intake just have to make an adapter
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Old Feb 17, 2008 | 11:28 PM
  #15  
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From: Hurst, Texas
Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
Re: how to run the EGR in a closed loop

Originally Posted by 5.0slayer
well its not old i just got it , but the stock intake is worse then that , so is there any thing else i could or no , i want to use the new intake.so if any thing how do u run it in a closed loop if you no. what if i just pull the fuse for it if there is one
----------
eventualy i will im lookin to get 202 heads or vortec

The stock intake is better than the intake you are talking about.
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Old Feb 17, 2008 | 11:38 PM
  #16  
5.0slayer's Avatar
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From: parma,OH
Car: 91 camaro RS
Engine: 350, forged 355 in the works
Transmission: 4 speed goin to th400
Axle/Gears: stock 9bolt, 3.27
Re: how to run the EGR in a closed loop

ive read some of your posts and u seem to no what u r talking about so what do u think i should with the whole thing ,, and i also have the option of putting a 600cfm elelbrock carb on
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