I hate to be a noob, but I heard someone talkin about how great these are and I'm just curious about WHAT they are. Please help me out. 
What are CMCV plates? Please Exlpain.
- Thread starter CRoberts91
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lightblade
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- Aug 7, 2004
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They are basicly, plates at the bottom of the intake runners(between tthe intake and the heads) and they have blades or fins inside of the that rotate and obstruct airflow based on air speed. They are retarded lol.
lightblade
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- Aug 7, 2004
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Not a bad idea. The delete plates remove the valves(fins/blades) , removing turbulence and increasing airflow. Requires tuning to run right.
lightblade
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Mr_Q
Founding Member
Okay most the replies here are not really an answer, heh.
The STOCK plates are a marketing snafu on Ford's part. While other manufactures proudly advertise such tech in their motors (Infinity, Acura, etc) Ford really was clueless. The engineers put them in there for a reason, two actually.
1) They improve fuel econ marginally
2) They improve bottom end torque allowing for a more linear torque curve.
It's actually a nifty piece of tech. It allows the engine to deliver a more linear power curve and save you some gas.
Now for the downside....
For drag racers and people who generally care about WoT only type of running they can be a bad thing. Mainly because they do obstruct airflow. And as we all know, us muscle car guys go crazy over air flow. We'd port and polish our own a$$ holes if we new it would make our cars go faster.
So get them if you are all about making max power on the dyno and getting all you can get for that last leg at the drag strip.
Don't get them if you want a more linear responsive motor for daily driving around town. They will actually give you a better feeling and performing car for city driving. Your car will always feel like it's pulling hard from and stand still on up through the gears...in city driving conditions.
The STOCK plates are a marketing snafu on Ford's part. While other manufactures proudly advertise such tech in their motors (Infinity, Acura, etc) Ford really was clueless. The engineers put them in there for a reason, two actually.
1) They improve fuel econ marginally
2) They improve bottom end torque allowing for a more linear torque curve.
It's actually a nifty piece of tech. It allows the engine to deliver a more linear power curve and save you some gas.
Now for the downside....
For drag racers and people who generally care about WoT only type of running they can be a bad thing. Mainly because they do obstruct airflow. And as we all know, us muscle car guys go crazy over air flow. We'd port and polish our own a$$ holes if we new it would make our cars go faster.
So get them if you are all about making max power on the dyno and getting all you can get for that last leg at the drag strip.
Don't get them if you want a more linear responsive motor for daily driving around town. They will actually give you a better feeling and performing car for city driving. Your car will always feel like it's pulling hard from and stand still on up through the gears...in city driving conditions.
Mr_Q
Founding Member
The delete plates make the car repsond more at higher rpms. You can affect how much through your tune. I go for a nice smooth daily driver tune, with tighter shifts on the auto. So I do feel a tad less pull in the lower rpms. (with the delete plates)
You could tune so that when you hit the upper rpms you get more fuel and take more advantage of the delete plates. It's not that they are doing more than at lower rpm it's that you tuned for them in the upper. This is what I've done so I get a stronger kick in the pants once the rpms build.
You could tune so that when you hit the upper rpms you get more fuel and take more advantage of the delete plates. It's not that they are doing more than at lower rpm it's that you tuned for them in the upper. This is what I've done so I get a stronger kick in the pants once the rpms build.
Dude, thank you so much. I think you just saved me from a big mistake, I definitely want to keep my linear torque curve. I appreciate your input.
Mr_Q
Founding Member
You know I just realized that some may misinterpret what I meant....my first reply to this topic was an explaination of the STOCK PLATES...not the DELETE PLATES.
Looking back some might have inferred I was speaking of how the delete plates make for a more linear torque. This is NOT what I meant.
Just putting that disclaimer out in case.
Looking back some might have inferred I was speaking of how the delete plates make for a more linear torque. This is NOT what I meant.
Just putting that disclaimer out in case.
cowtown
Founding Member
yeah thanks Mr. Q I was going to do this as well but I think given your descriptions above I'll stay stock.
Mr_Q
Founding Member
Hmm....I haven't heard from too many where that is the case. Most canned tunes, which is what 80% of the owners out there use, don't do that in general.
Mine is darn close to "pre-plates" in how in pulls from a stand still but it's not quite the same. And the tuner shop I went to does a darn good job.
Mine is darn close to "pre-plates" in how in pulls from a stand still but it's not quite the same. And the tuner shop I went to does a darn good job.
I have a Brenspeed tune, though I just received my updated Bama tune that I'm going to try. I didn't notice any loss in power with my butt dyno, but I definitely noticed an improvement. Most of my mods are considered higher rpm mods, so we'll see what the difference is once I get my dyno at the end of the month.
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