Wahoo!!! LS6 Intake Manifold
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From: FL/NJ
Wahoo!!! LS6 Intake Manifold In my attempt to become more mechanically incliended, I was reading, "LS1/LS6 Performance" by, Chris Enders and found out that I, and all 2001 and 2002 LS1's (F-body or C5) have LS6 intake manifolds. Anyway, thought I would share, the book has some good stuff that is tried and proven, so you can learn from others mistakes. 
Re: Wahoo!!! LS6 Intake Manifold I heard they switched over to the LS6 manifold somewhere mid 2001 model year, so not all '01s have it. Unfortunatly, you can't tell by looking at it unless you take it off the car.
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From: metro st louis
Re: Wahoo!!! LS6 Intake Manifold EGR=Exhaust Gas Recirculation. Emissions bullshit. Does nothing for performance. Pumps in exhaust gasses back into your intake to cut down on hydrocarbons that may be missed by the cats.
I have heard people say that it hurts performance to disconnect it. I have heard people say that disconnecting does nothing. But I would believe if you could lower your intake temp, by not pumping in 300+ degree dirty air, you would have to realise at least a small perf gain?
I have heard people say that it hurts performance to disconnect it. I have heard people say that disconnecting does nothing. But I would believe if you could lower your intake temp, by not pumping in 300+ degree dirty air, you would have to realise at least a small perf gain?
Launching!
Joined: Nov 2001
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From: Plano, TX
Re: Wahoo!!! LS6 Intake Manifold Yes, EGR = Exhaust Gas Recirculation, but I always heard that the purpose of the EGR was to reduce NOx emmisions by reducing combustion temperatures, I don't think EGR does squat for Hydrocarbon emmissions.
Teching In
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From: LA, CA
Re: Wahoo!!! LS6 Intake Manifold One thing that is overlooked about EGR is fuel economy.
Exhaust gases can be considered an inert gas. That means you can fill the combustion chamber with an unburnable gas and use less fuel to achieve complete combustion. When you lower combustion temperatures in this manner you can increase your lean burn potential under cruising and light load conditions. Think of it this way. When you lower the combustion temperature you can lean the engine out more without knocking.
Therefore if the ECU is programmed correctly you have the EGR working only under light load and cruising conditions. The beauty of computer control is that when you give it any kind of throttle the computer turns off the valve. Hence, no change in performance be disconnecting the EGR system.
Since I am using a race computer on my corvette engine I am slightly bummed that I don't have EGR because my potential fuel economy is lowered.
Mark
Exhaust gases can be considered an inert gas. That means you can fill the combustion chamber with an unburnable gas and use less fuel to achieve complete combustion. When you lower combustion temperatures in this manner you can increase your lean burn potential under cruising and light load conditions. Think of it this way. When you lower the combustion temperature you can lean the engine out more without knocking.
Therefore if the ECU is programmed correctly you have the EGR working only under light load and cruising conditions. The beauty of computer control is that when you give it any kind of throttle the computer turns off the valve. Hence, no change in performance be disconnecting the EGR system.
Since I am using a race computer on my corvette engine I am slightly bummed that I don't have EGR because my potential fuel economy is lowered.
Mark
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From: Lubbock
Re: Wahoo!!! LS6 Intake Manifold
yes mines EGR but id heard about some EGR-less ls1 intake cars overseas or something.
I don't know anything about overseas EGR-less LS1 intakes.
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From: Lubbock
Re: Wahoo!!! LS6 Intake Manifold
OK I thougt you didn't have egr stock. I'm really surprised that 01-02's dont.