CMCV Delete Plate install (with pics)
03-25-2008, 11:57 AM
#41
RE: CMCV Delete Plate install (with pics)
ORIGINAL: xROBxCOREx
Well I saw that, but Im just curious as to the reasoning of removing them.
Well I saw that, but Im just curious as to the reasoning of removing them.
Plus they are, well used to be, an extremely cheap mod. If you stumble upon a set for under $100, they're a good deal. I was fortunate enough to find a set of billet delete plates for $90 shipped.
03-25-2008, 12:24 PM
#42
3rd Gear Member
Join Date: Jan 2008
Location: CA
Posts: 638
RE: CMCV Delete Plate install (with pics)
OK, so basically theyre just designed to flow better.
I guess what I was really trying to find out is what exactly the motor and those butterflies do. Im assuming they open up more depending on how much throttle you give?
I guess what I was really trying to find out is what exactly the motor and those butterflies do. Im assuming they open up more depending on how much throttle you give?
03-25-2008, 07:04 PM
#43
2nd Gear Member
Join Date: Mar 2007
Location: Greater Philadelphia area
Posts: 408
RE: CMCV Delete Plate install (with pics)
yes, the butterflies open and close to cause a tumble of the airflow. the butterfly valves do take up space tho and thus, to a certain degree, restrict flow just with their presence. as rpms increasethe butterfly valvesopenup more. At near open or full openthey still restrict flowsomewhateven in profile.When you remove them entirelyyou remove that restriction.if you have taken out the butterfly valves then on the low end you do not get their benefit....that is why some folks are worried that they might lose HP on the low end.when you install some blowersyou will de-install these (like UDPs for example.)
03-25-2008, 07:14 PM
#45
RE: CMCV Delete Plate install (with pics)
I have a quick question,
I installed mine about 5 months ago. But I didn't tighten the intake manifold bolts to factory torque specs since I didn't have a torque wrench. I did tighten the bolts in the right order though.
So far, I haven't had any problems, would it be necessary to go back and torque them to specs?
I installed mine about 5 months ago. But I didn't tighten the intake manifold bolts to factory torque specs since I didn't have a torque wrench. I did tighten the bolts in the right order though.
So far, I haven't had any problems, would it be necessary to go back and torque them to specs?
03-25-2008, 07:15 PM
#46
RE: CMCV Delete Plate install (with pics)
ORIGINAL: DeStonn
why would you take them off once you get a blower?
why would you take them off once you get a blower?
03-25-2008, 07:45 PM
#49
2nd Gear Member
Join Date: Mar 2007
Location: Greater Philadelphia area
Posts: 408
RE: CMCV Delete Plate install (with pics)
example: saleen series VI has you remove factory manifold including CMCVs and replace with the Saleen blower/manifold.
This would not be the case with a Centri supercharger tho. Since that unit is installedprior to thethrottle body then itwould not necessitate removal of CMDPs if you had them already installed. In fact somemight even advise you toinstall CMDPsin a Centri install so that you remove the butterfly valves and it would be one less item to fail under higher pressue/boost. I can't speak from personal experience and would defer to the centri crew. another item to read up on......
This would not be the case with a Centri supercharger tho. Since that unit is installedprior to thethrottle body then itwould not necessitate removal of CMDPs if you had them already installed. In fact somemight even advise you toinstall CMDPsin a Centri install so that you remove the butterfly valves and it would be one less item to fail under higher pressue/boost. I can't speak from personal experience and would defer to the centri crew. another item to read up on......
