2003 Cobra PCV P/N?
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From: Charleston, SC
2003 Cobra PCV P/N?
Ok, so I am out running around buying parts for my weekend of maintenance (change fuel filter, switch to Cobra PCV, change thermostat, etc.). The Ford dealer is telling me the '03 Cobra PCV is P/N EV-153, but everything I've read on here says I need a EV-98-B. He tells me the EV-98-B is for Mustangs, but older ones, maybe even 302s. So which one do I need to help stop the oil from entering my intake area? I know it won't completely stop, but I am going to give it a try. Thanks guys.
Matt
Matt
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From: San Antonio
You will have to do a little adjusting to get the '03 Cobra PCV P/N EV-153 to fit. It goes into the valve cover fine but the other end I had to turn down a piece of half inch tubing to get it to fit the line.
You can use hose or what ever to make it work. I think the EV-98-B plugs right in, When you go to buy a PCV just pop out the passenger side PCV and take it into the parts house with ya to compare... Just get one that is one way.
You can use hose or what ever to make it work. I think the EV-98-B plugs right in, When you go to buy a PCV just pop out the passenger side PCV and take it into the parts house with ya to compare... Just get one that is one way.
Last edited by RED 92; Oct 24, 2003 at 08:44 PM.
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Don't forget to plug the PCV line at the idle air controll on the upper plenum....OR install an oil separator .....
Otherwise when you go from vacume to boost all your going to do is blow all the oil from the PCV line into the upper plenum so that once again the oil can goop up your intercooler.
Otherwise when you go from vacume to boost all your going to do is blow all the oil from the PCV line into the upper plenum so that once again the oil can goop up your intercooler.
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From: Minn
Hi Red 92,, say i was wondering about that EV-153,,, thats pretty unusual looking.... I have the "other" cobra one in my truck now.. ( doesn't help at all.. even with a separator) Is that a one way valve? and why is it so tall looking.. does it poss. have screens or something in there to help block slashing oil from getting sucked up?? I have my system blocked off, ( at the pass. side rear of upper plenum) until i can STOP this oil injestion.
motor is vented at both valve covers...
regards...Greg
motor is vented at both valve covers... regards...Greg
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From: San Antonio
yes, there is a metal screen mesh in the tube, but I took it out today.
Last edited by RED 92; Oct 28, 2003 at 03:35 PM.
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From: Illinois
Originally posted by RED 92
yes, there is a metal screen mesh in the tube. I stopped running this set up because even though the 03 cobra PCV is a one way PCV it will not let any oil that is vacuumed out of the engine drain back down when not under vacuum and I accumulated just as much oil in my separator as I did with the stock PCV.
My set up now dose not allow any oil in the plenum.
Note: for NoSurprise I tried the swanson kit and I got a check engine light. I understand it works for you but not for others. I was also told by "tuners" do not plug off anything in the PCV system.
OK, I start with the factory PCV, then it goes to a oil separator then to a 03 cobra PCV then to the tee. Nothing is blocked off and I get very little oil in the separator( because it drains back down while not under vacuum through the fact. PCV and I do not pressurize my separator or engine because my 03 cobra PCV valve is up-stream of both.
yes, there is a metal screen mesh in the tube. I stopped running this set up because even though the 03 cobra PCV is a one way PCV it will not let any oil that is vacuumed out of the engine drain back down when not under vacuum and I accumulated just as much oil in my separator as I did with the stock PCV.
My set up now dose not allow any oil in the plenum.
Note: for NoSurprise I tried the swanson kit and I got a check engine light. I understand it works for you but not for others. I was also told by "tuners" do not plug off anything in the PCV system.
OK, I start with the factory PCV, then it goes to a oil separator then to a 03 cobra PCV then to the tee. Nothing is blocked off and I get very little oil in the separator( because it drains back down while not under vacuum through the fact. PCV and I do not pressurize my separator or engine because my 03 cobra PCV valve is up-stream of both.
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From: STL
Originally posted by JeffsLightning
So the o3 Cobra pcv is after the separator but right before the upper plenum?
So the o3 Cobra pcv is after the separator but right before the upper plenum?
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From: Brea, Ca
RED 92,
I too got a check engine code one time. But it was becauce the PCV part # MOTORCRAFT EV-98 in conjuction with the upper plenum block off disk kept the boost pressure (16#s in this cace)
confined to the intake manifold. The hose is a slip fit on top of the PCV and was BLOWN off by the boost pressure and caused a lean code.
The MOTORCRAFT EV-98 PCV will back flow a very, very small amount, allowing any oil that has pooled in the intake galley to return to the cam cover under boost pressure.
NoSurprise
I too got a check engine code one time. But it was becauce the PCV part # MOTORCRAFT EV-98 in conjuction with the upper plenum block off disk kept the boost pressure (16#s in this cace)
confined to the intake manifold. The hose is a slip fit on top of the PCV and was BLOWN off by the boost pressure and caused a lean code.
The MOTORCRAFT EV-98 PCV will back flow a very, very small amount, allowing any oil that has pooled in the intake galley to return to the cam cover under boost pressure.
NoSurprise
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From: San Antonio
Originally posted by NoSuprise
RED 92,
I too got a check engine code one time. But it was becauce the PCV part # MOTORCRAFT EV-98 in conjuction with the upper plenum block off disk kept the boost pressure (16#s in this cace)
confined to the intake manifold. The hose is a slip fit on top of the PCV and was BLOWN off by the boost pressure and caused a lean code.
The MOTORCRAFT EV-98 PCV will back flow a very, very small amount, allowing any oil that has pooled in the intake galley to return to the cam cover under boost pressure.
NoSurprise
RED 92,
I too got a check engine code one time. But it was becauce the PCV part # MOTORCRAFT EV-98 in conjuction with the upper plenum block off disk kept the boost pressure (16#s in this cace)
confined to the intake manifold. The hose is a slip fit on top of the PCV and was BLOWN off by the boost pressure and caused a lean code.
The MOTORCRAFT EV-98 PCV will back flow a very, very small amount, allowing any oil that has pooled in the intake galley to return to the cam cover under boost pressure.
NoSurprise
Is the PCV that came with the swanson kit a EV-98?.... I guess the 03 cogra PCV was the reason for my light. I didn't use the PCV in the kit because I already had the 03 cobra PCV and noticed it also was one way... I guess I could try it with the other PCV valve, but i think I'm going to run current set up for awhile.
So the crankcase vents and when under boost, this venting is returned to where it came from back to ...the cam cover???? Or does all the crankcase vent through the drivers side.
I'm just reluctant to plug anything again right now...I'll stay with the separator.
http://www.et-performance.com/tech_info.html
Last edited by RED 92; Oct 31, 2003 at 04:19 PM.
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From: Brea, Ca
RED 92,
I had Danny install his PCV kit before the KB was installed 8 months ago. Last weekend I had time to take the intercooler off to clean the oil leftover by the stock set-up. Upon takedown there was no oil eveident in the intake boot, throttle body, upper intake plenum or the KB supercharger.
BUT it took three cans of carb cleaner to fully clean the intercooler of oil leftover from the stock PCV system.
The reason we want the intercooler to be effective is to avoid the 1 percent penalty of lost HP power for each 10 degrees change of increased of the intake air charge. A 10 degree increase= .01x380=3.8 lost HP. Guys have spent a lot more for a lot less gain.
There is also the added benifit of retanied boost pressure in the intake manifold. One dyno run has shown a back to back comparison with an increasce of 8 HP with the PCV and blocking disk over the stock system.
NoSurprise
I had Danny install his PCV kit before the KB was installed 8 months ago. Last weekend I had time to take the intercooler off to clean the oil leftover by the stock set-up. Upon takedown there was no oil eveident in the intake boot, throttle body, upper intake plenum or the KB supercharger.
BUT it took three cans of carb cleaner to fully clean the intercooler of oil leftover from the stock PCV system.
The reason we want the intercooler to be effective is to avoid the 1 percent penalty of lost HP power for each 10 degrees change of increased of the intake air charge. A 10 degree increase= .01x380=3.8 lost HP. Guys have spent a lot more for a lot less gain.
There is also the added benifit of retanied boost pressure in the intake manifold. One dyno run has shown a back to back comparison with an increasce of 8 HP with the PCV and blocking disk over the stock system.
NoSurprise
Last edited by NoSuprise; Oct 27, 2003 at 01:33 PM.
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From: San Antonio
The reason we want the intercooler to be effective is to avoid the 1 percent penalty of lost HP power for each 10 degrees change of increased of the intake air charge. A 10 degree increase= .01x380=3.8 lost HP. Guys have spent a lot more for a lot less gain.
ya, I hope I caught my oil in the intake early enough.... I have 3k miles and I installed the separator when I installed my mods a few weeks ago..
ya, I hope I caught my oil in the intake early enough.... I have 3k miles and I installed the separator when I installed my mods a few weeks ago..
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From: Illinois
Originally posted by NoSuprise
RED 92,
I too got a check engine code one time. But it was becauce the PCV part # MOTORCRAFT EV-98 in conjuction with the upper plenum block off disk kept the boost pressure (16#s in this cace)
confined to the intake manifold. The hose is a slip fit on top of the PCV and was BLOWN off by the boost pressure and caused a lean code.
The MOTORCRAFT EV-98 PCV will back flow a very, very small amount, allowing any oil that has pooled in the intake galley to return to the cam cover under boost pressure.
NoSurprise
RED 92,
I too got a check engine code one time. But it was becauce the PCV part # MOTORCRAFT EV-98 in conjuction with the upper plenum block off disk kept the boost pressure (16#s in this cace)
confined to the intake manifold. The hose is a slip fit on top of the PCV and was BLOWN off by the boost pressure and caused a lean code.
The MOTORCRAFT EV-98 PCV will back flow a very, very small amount, allowing any oil that has pooled in the intake galley to return to the cam cover under boost pressure.
NoSurprise
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Posts: 115
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From: Brea, Ca
RED 92 quote:
"So the crankcase vents (oil) and when under boost, this venting(vented oil) is returned to where it came from ...the cam cover????(Yes) My boost pressure can take a turn at the tee and (oil) enter(s) the plenum...."(the disk blocks the oil and prevents wasting the boost here) () enclosed are my comments, NoSurprise
When under boost, the crankcase vents blowby out the driver side cam cover. The PCV "EV-98" prevents adding the boost pressure to the normal blowby volume that vents out the driver side cam cover.
NoSurprise
"So the crankcase vents (oil) and when under boost, this venting(vented oil) is returned to where it came from ...the cam cover????(Yes) My boost pressure can take a turn at the tee and (oil) enter(s) the plenum...."(the disk blocks the oil and prevents wasting the boost here) () enclosed are my comments, NoSurprise
When under boost, the crankcase vents blowby out the driver side cam cover. The PCV "EV-98" prevents adding the boost pressure to the normal blowby volume that vents out the driver side cam cover.
NoSurprise