Egr
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From: Delta Quadrant (Toronto)
Egr
What I been told is LT4 and LS6 and later dont have EGR. They over come with CAM over laps.
My Question is How they do that.
I have 96TA. I am thinking of making Custum CAM to a LS6 02 cam specs. How that would work my LT1. I want sleeper like LS6 02 is. I also want Emission and Drivablility to be normal.
What I am looking into it
Can it be done ?
Sorry If its not for Advance Tech!
My Question is How they do that.
I have 96TA. I am thinking of making Custum CAM to a LS6 02 cam specs. How that would work my LT1. I want sleeper like LS6 02 is. I also want Emission and Drivablility to be normal.
What I am looking into it
Can it be done ?
Sorry If its not for Advance Tech!
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Joined: Dec 1999
Posts: 1,697
From: Petersham, MA
The LS6 makes it's power because of great head flow among other things. Just because you grind the same cam does not mean you will have a "sleeper". Your cam should be based off the lift where your heads flow best and the intended RPM range.
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From: Hell was full so they sent me to NJ
If you want drivability, legal emissions and *****-out performance, why not just leave the LT1 EGR where it is, and functioning. EGR only operates at part load condition, and actually reduces the chance of detonation when you are lugging the engine at lower RPM. It does not operate at all at WOT, so it has no possible effect on performance, as long as it is closing properly.
The "no EGR because of overlap" of the LT4 and LS6 was arrived at through extensive emission testing on a dyno. I would think that it is a combination of many factors, including the exhaust reversion that takes place at a particular RPM and valve position, and that is a function not only of the cam grind, but of the intake and exhaust path configurations. Grinding a cam the same as one in some totally different configuration isn't going to guarantee similar results.
The "no EGR because of overlap" of the LT4 and LS6 was arrived at through extensive emission testing on a dyno. I would think that it is a combination of many factors, including the exhaust reversion that takes place at a particular RPM and valve position, and that is a function not only of the cam grind, but of the intake and exhaust path configurations. Grinding a cam the same as one in some totally different configuration isn't going to guarantee similar results.
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Joined: Oct 2000
Posts: 381
From: Delta Quadrant (Toronto)
Originally posted by Josh-'97 WS6
The LS6 makes it's power because of great head flow among other things. Just because you grind the same cam does not mean you will have a "sleeper". Your cam should be based off the lift where your heads flow best and the intended RPM range.
The LS6 makes it's power because of great head flow among other things. Just because you grind the same cam does not mean you will have a "sleeper". Your cam should be based off the lift where your heads flow best and the intended RPM range.
Should I get Stage Heads ?
or you have some cam in your mind ?
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Joined: Oct 2000
Posts: 381
From: Delta Quadrant (Toronto)
Originally posted by Injuneer
If you want drivability, legal emissions and *****-out performance, why not just leave the LT1 EGR where it is, and functioning.
If you want drivability, legal emissions and *****-out performance, why not just leave the LT1 EGR where it is, and functioning.
Originally posted by Injuneer
EGR only operates at part load condition, and actually reduces the chance of detonation when you are lugging the engine at lower RPM. It does not operate at all at WOT, so it has no possible effect on performance, as long as it is closing properly.
EGR only operates at part load condition, and actually reduces the chance of detonation when you are lugging the engine at lower RPM. It does not operate at all at WOT, so it has no possible effect on performance, as long as it is closing properly.
Originally posted by Injuneer
The "no EGR because of overlap" of the LT4 and LS6 was arrived at through extensive emission testing on a dyno. I would think that it is a combination of many factors, including the exhaust reversion that takes place at a particular RPM and valve position, and that is a function not only of the cam grind, but of the intake and exhaust path configurations. Grinding a cam the same as one in some totally different configuration isn't going to guarantee similar results.
The "no EGR because of overlap" of the LT4 and LS6 was arrived at through extensive emission testing on a dyno. I would think that it is a combination of many factors, including the exhaust reversion that takes place at a particular RPM and valve position, and that is a function not only of the cam grind, but of the intake and exhaust path configurations. Grinding a cam the same as one in some totally different configuration isn't going to guarantee similar results.
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Joined: Dec 1999
Posts: 1,697
From: Petersham, MA
If you want emissions legal, why do you have an off road pipe? I would probably try a cam with a little more overlap, such as the LT4 Hot Cam. Little bigger but will still pass emissions with a tune.
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Posts: 381
From: Delta Quadrant (Toronto)
Originally posted by Josh-'97 WS6
If you want emissions legal, why do you have an off road pipe? I would probably try a cam with a little more overlap, such as the LT4 Hot Cam. Little bigger but will still pass emissions with a tune.
If you want emissions legal, why do you have an off road pipe? I would probably try a cam with a little more overlap, such as the LT4 Hot Cam. Little bigger but will still pass emissions with a tune.
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