EGR/Head question
Thread Starter
Joined: Jul 1999
Posts: 1,992
Likes: 10
From: CT
Car: 1986 Camaro SC
Engine: 305 TPI Procharged D1SC
Transmission: Tremec TKO-600
Axle/Gears: Moser 12 Bolt 3.73 posi
EGR/Head question
hey guys, the EGR valve, when it opens to let exhaust gasses in to be reburned, where do those gases flow through the heads? do the gasses go in all cylinders? or just 2? i noticed on the edelbrock intake it only has an egr runner in the middle on both sides.
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86 Camaro with 88 305 LB9 using 86 carb setup, edelbrock performer manifold, 305 S/R Torquer Heads, Hedman Headers, Crane Compucam 2032 edelbrock cat-back, gutted cat, slp underdrive pulley, mallory ignition, 305 h.o dual snorkel air cleaner, hypertech thermomaster chip,160 degree thermostat, 5-speed, 3.23 posi
95 Beretta Z26, 3100 V6, 4 Speed auto, stock
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86 Camaro with 88 305 LB9 using 86 carb setup, edelbrock performer manifold, 305 S/R Torquer Heads, Hedman Headers, Crane Compucam 2032 edelbrock cat-back, gutted cat, slp underdrive pulley, mallory ignition, 305 h.o dual snorkel air cleaner, hypertech thermomaster chip,160 degree thermostat, 5-speed, 3.23 posi
95 Beretta Z26, 3100 V6, 4 Speed auto, stock
Supreme Member
Joined: Dec 1999
Posts: 1,237
Likes: 1
From: Reno, NV
Car: yep
Engine: uhuh
Transmission: sure does
The EGR gets the ex. from one cylinder passage in each head on most SBCs, this is then distibuted to all cylinders via a passage under the carb/TBI (on your performer look for a hole under the carb.) and to the throttle plates on most tuned port styles.
Keep in mind this is just a general idea, there are a ton of different styles out there.
To answer the question, the gasses come from 2 cylinders, and go to all.
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ASE Mechanic/Machinist/Smog Tech
1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R
R.I.P. #3
"He can see air"
[This message has been edited by Engineboy (edited May 31, 2001).]
Keep in mind this is just a general idea, there are a ton of different styles out there.
To answer the question, the gasses come from 2 cylinders, and go to all.
------------------
ASE Mechanic/Machinist/Smog Tech
1999 NBM Trans Am
1986 Chevy 3/4 ton pick up
1981 corvette
1995 Kawi ZX6R
R.I.P. #3
"He can see air"
[This message has been edited by Engineboy (edited May 31, 2001).]
Thread Starter
Joined: Jul 1999
Posts: 1,992
Likes: 10
From: CT
Car: 1986 Camaro SC
Engine: 305 TPI Procharged D1SC
Transmission: Tremec TKO-600
Axle/Gears: Moser 12 Bolt 3.73 posi
ok i'm trying to figure out why i'm burning oil in 2 cylinders, i dont think it's the rings cause it would smoke all the time wouldnt it?, compression test checks out fine, it doesnt burn oil when started or driving normally, if you open it up and downshift at high rpms, clouds come out, i'm wondering if it has something to do with the fuel vapor canister hoses being pluged in with the pcv valve vaccum hose... anyone have opinions??
------------------
86 Camaro with 88 305 LB9 using 86 carb setup, edelbrock performer manifold, 305 S/R Torquer Heads, Hedman Headers, Crane Compucam 2032 edelbrock cat-back, gutted cat, slp underdrive pulley, mallory ignition, 305 h.o dual snorkel air cleaner, hypertech thermomaster chip,160 degree thermostat, 5-speed, 3.23 posi
95 Beretta Z26, 3100 V6, 4 Speed auto, stock
------------------
86 Camaro with 88 305 LB9 using 86 carb setup, edelbrock performer manifold, 305 S/R Torquer Heads, Hedman Headers, Crane Compucam 2032 edelbrock cat-back, gutted cat, slp underdrive pulley, mallory ignition, 305 h.o dual snorkel air cleaner, hypertech thermomaster chip,160 degree thermostat, 5-speed, 3.23 posi
95 Beretta Z26, 3100 V6, 4 Speed auto, stock
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