Charge motion delete plates
10-22-2006, 11:54 PM
#1
4th Gear Member
Thread Starter
Join Date: Dec 2005
Location: greenville
Posts: 1,268
Charge motion delete plates
I have seen them somewhere for $95, and I have a few questions about them. How hard is the install? How much would a shop charge to install them. Where can I buy them for the V6 the cheapest?
Thanks-J. Morriss
Thanks-J. Morriss
10-23-2006, 01:15 AM
#3
Join Date: Jun 2006
Location:
Posts: 15
RE: Charge motion delete plates
The Charge motion plates are for the GT's to give them more low end torque. They do not exist on the 4.0. The following is from Here and gives you more info on them.
"The air-fuel mixture entering an engine behaves differently at different engine speeds and loads. At low engine speeds and light loads, relatively little air-fuel mixture is drawn into the cylinders in a given time period, so it moves relatively slowly through the intake runners and into the cylinders. At high engine speeds, the intake mixture speeds up, as a larger volume passes through the intake runners over the same time period.
One of the challenges involved in squeezing the utmost efficiency out of each drop of fuel is to assure that it mixes thoroughly with air, in the right ratio, before it is burned in the cylinders. This is easiest when the air is moving quickly.
At lower speeds and lighter loads, the new three-valve engine uses an electronically controlled metal flap at the end of each intake runner – eight in all. This Charge Motion Control Valve was specially shaped, through CAD modeling and testing, to speed up the intake charge and induce a tumble effect in the combustion cylinder. This causes the fuel to mix more thoroughly, and to burn quickly and efficiently, with reduced emissions, particularly at idle.
The CMCV flaps are housed in the intake module and controlled by an electric motor. CMCV_Closed.jpg
The CMCVs are controlled by an electronic motor, and open at a predetermined point as engine speed increases. At higher RPM, they do not affect the intake charge at all. This allows undisturbed maximum flow into the combustion chambers at wide-open throttle. The CMCV motor is sound insulated, so its operation remains transparent to vehicle occupants."
"The air-fuel mixture entering an engine behaves differently at different engine speeds and loads. At low engine speeds and light loads, relatively little air-fuel mixture is drawn into the cylinders in a given time period, so it moves relatively slowly through the intake runners and into the cylinders. At high engine speeds, the intake mixture speeds up, as a larger volume passes through the intake runners over the same time period.
One of the challenges involved in squeezing the utmost efficiency out of each drop of fuel is to assure that it mixes thoroughly with air, in the right ratio, before it is burned in the cylinders. This is easiest when the air is moving quickly.
At lower speeds and lighter loads, the new three-valve engine uses an electronically controlled metal flap at the end of each intake runner – eight in all. This Charge Motion Control Valve was specially shaped, through CAD modeling and testing, to speed up the intake charge and induce a tumble effect in the combustion cylinder. This causes the fuel to mix more thoroughly, and to burn quickly and efficiently, with reduced emissions, particularly at idle.
The CMCV flaps are housed in the intake module and controlled by an electric motor. CMCV_Closed.jpg
The CMCVs are controlled by an electronic motor, and open at a predetermined point as engine speed increases. At higher RPM, they do not affect the intake charge at all. This allows undisturbed maximum flow into the combustion chambers at wide-open throttle. The CMCV motor is sound insulated, so its operation remains transparent to vehicle occupants."
Thread
Thread Starter
Forum
Replies
Last Post
Boostaddict
Lethal Performance
0
10-01-2015 08:58 AM
Boostaddict
3.7L V6 S550 Tech 2015 - 2017
0
10-01-2015 08:57 AM
