Has anyone measured EGTs on each runner of a non-equal length manifold?
#1
Rebreaking things
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Has anyone measured EGTs on each runner of a non-equal length manifold?
I'm in the market for a manifold and a couple of the units I have looked at are not equal length. I am using a turbo with a divided housing.
I am concerned that two different runner lengths may cause back pressure to vary between the two rotors, in turn creating different AFRS and EGTs for each rotor. From what I understand the shape of the pipe (bends ect) is primarly what determines backpressure, so I don't expect the variation to be significant, but I'd still like proof.
Any thoughts/experiences?
I am concerned that two different runner lengths may cause back pressure to vary between the two rotors, in turn creating different AFRS and EGTs for each rotor. From what I understand the shape of the pipe (bends ect) is primarly what determines backpressure, so I don't expect the variation to be significant, but I'd still like proof.
Any thoughts/experiences?
#4
Rotary Motoring
iTrader: (9)
Has anyone measured EGTs on each runner of an equal length exhaust manifold?
I have heard that a wide variance between front and rear EGTs on the 3rd gen is due to poor lower intake design.
I have seen "airflow balancer" in another member's must have mod list for 3rd gens and had a respected builder tell me of this phenomenon as well.
I have heard that a wide variance between front and rear EGTs on the 3rd gen is due to poor lower intake design.
I have seen "airflow balancer" in another member's must have mod list for 3rd gens and had a respected builder tell me of this phenomenon as well.
#5
Lives on the Forum
What's the problem with the lower intake manifold?
We're fighting a weird phenomena on a 13BT running an FD UIM, and I can't tune out these weird hesitations at around 2kRPM. I keep swearing it's some weird intake resonance...
-Ted
We're fighting a weird phenomena on a 13BT running an FD UIM, and I can't tune out these weird hesitations at around 2kRPM. I keep swearing it's some weird intake resonance...
-Ted
#6
Lives on the Forum
What's the problem with the lower intake manifold?
We're fighting a weird phenomena on a 13BT running an FD UIM, and I can't tune out these weird hesitations at around 2kRPM. I keep swearing it's some weird intake resonance...
-Ted
We're fighting a weird phenomena on a 13BT running an FD UIM, and I can't tune out these weird hesitations at around 2kRPM. I keep swearing it's some weird intake resonance...
-Ted
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