SVT Intake Manifold...

[yellow2000S/R]

SO, there was discussion about it on myZX2.com.

Link to topic: http://myzx2.com/forums/thread/6640.aspx

Pics of SVT mani bolted to ZX2 zetec: http://good-times.webshots.com/album/552370802iqGNLz


I was wondering if there are any specific advantages to doing this because the manifolds are going for less now and after I have a few other things finished around here, I'll be working on a ZX2 again.

Does it flow better than the regualar mani... as in being worth the hassle of figuring out how to get it to activate? It seems its designed to help with low end tq and switches over around 6k rpm to the short runners to increase peak power.

I can see in pics that the ports are off. Can they be ported "that far" to match up with the SVT ports without going into any coolant or oil passages or getting too weak that you have to worry about something like that?

What kind of increase could be expected from something like this since it would also "require" a ported head? I already plan on getting a Kami and have a Trubendz 2.5" SS exhaust with Borla, 18" res, and high flow cat.

Also read that it may not be good or is not recommended for boost applications because it is multi-parts glued together... what kinda pressure are we looking at before it "pops"?

[yellow2000S/R]

Found this: http://www.focusfanatics.com/forum/showthread.php?t=69441

I'll read up on it tomorrow, I'm going to bed now. Maby I'll make a run down to McNews Automotive sometime and talk about this since they are only ~20 mins away. Seems that one of the guys that did this "swap" in 05/06 got Ray to do some of the tuning. The only crappy thing is there is no final dyno results, or dyno results in general.

[AZN_ZX2]

Looks interesting

bump

[JohnP]

There is a lot of stuff posted about swapping the manifold ,but maybe only 2-3 people have done it , none have given results , other then it runs good .

I picked up the Lower Manifold/Injector Plate because it's a easy way to come up with a custom manifold . The only thing you have to do is add a Plenum to the Injector Plate . I've played around with making a plenum from various materials , still playing .

The manifold does not align with the ZX2/ZX3 intake ports , it aligns the same way the old(Z20) Ford Racing manifold does . The SVT head must be the same design as the FR200 Focus(Z20), uses a high port intake . Thats the reason the old manifold had to be slotted and re-drilled to lower the manifold port to align with the ZX2/ZX3 head ports.

If you use the manifold on a stock port head ,you'll have a really bad mis-alignment and power loss . The stock port entrance can be raised a little with porting and the manifold lowered a little by off-setting the inside of the bushing . You'll still have to re-shape the head port to match the manifold . The manifold port always has to be smaller then the head port .

For probably less then $150.00 , you can come up with a nice custom medium length runner manifold . The Lower Manifold 2M5Z-9424-BB includes runner connectors and clamps for less then $60.00 . Basically it's like cutting the injector flange off a stock manifold , just add a plenum , injectors . Theres a ton of possibilities with the Lower Manifold/Injector Plate .

If the complete manifold is used with boost , there maybe a possibility of pressure leaks where the shafts go through the housing. Barring any leaks the manifold should hold whatever pressure you can put into it .

[2000ZxT]

I did this for a friends car but this complete swap may soon be available to buy because he still hasn't paid me for previous expenses.

It's possible it's just a lot of work.

http://i321.photobucket.com/albums/nn370/NDSMotorsports/port.jpg

[ravensguildassasin]

well since we are doing a thread like this. here is a couple designs i came up with last night.http://i12.photobucket.com/albums/a232/raven_vannato/sheetmetalintake.jpg

[2000ZxT]

If your really trying to do that design theres sooo much more that goes into it that what your thinking.

And anyways, Jay Racing beat you to it. They now make THE premier Zetec Intake Manifold. The thing is damn sexy but as someone said on Focaljet: "You gotta pay to play."

[yellow2000S/R]

If your really trying to do that design theres sooo much more that goes into it that what your thinking.

And anyways, Jay Racing beat you to it. They now make THE premier Zetec Intake Manifold. The thing is damn sexy but as someone said on Focaljet: "You gotta pay to play."

Yea, I've seen the Jay Racing manifold topic on FocusFanatics.com.


John, I have no problem with doing the port work myself. I know I can get it relatively close and then get all the chambers the same, and that would be good. I know it would be better to then take it to a shop and have them get each port flowing the same then do a 3 angle valve job. I'd probably stop at that, I dont plan on going far enough to make going oversize valves worth it.

I just wanted to make sure that there wont be a problem running into any coolant/oil passages by porting the head out on the intake side. I know about the runner outlets should be slightly smaller than the head ports to cut down on air flowing backwards. If air is flowing backwards it then has to change direction again to get pulled into the combustion chamber which is inefficient.

[JohnP]

You won't have any problems breaking through anywhere , your not going to be removing very much material . I have seen people break through around the valve guides , you end up with a hole into the spring seat . A stock valve seat with the valve cut-back will flow the same as a 1MM oversize valve .

[yellow2000S/R]

You won't have any problems breaking through anywhere , your not going to be removing very much material . I have seen people break through around the valve guides , you end up with a hole into the spring seat .

That makes me very comfortable in taking this on. Thank you for the reply and I will soon be ordering a manifold along with the various other parts pending a chat with the guys at McNews automotive.

[2000ZxT]

I'm glad to see someone else is going the hard road and not just spending the (ridiculous amount of) money on the FRIM. Not that mine is even for my car, but same idea.

[ravensguildassasin]

If your really trying to do that design theres sooo much more that goes into it that what your thinking.

And anyways, Jay Racing beat you to it. They now make THE premier Zetec Intake Manifold. The thing is damn sexy but as someone said on Focaljet: "You gotta pay to play."

first of all he didn't beat me to anything. this is not a new concept. :winkyface:
second there is not a lot more to it then what i think. but i am not going to post everything i have blueprinted out either. the reason being i do not what every joe having my design on there zetec. back to the jays racing manifold, it looks nice But, i am not paying $750.00 for it plus $150.00 for it to look like that. so $900.00 for a manifold that they didn't even post a dyno of. they did however post base numbers of the car tuned with svt manifold.

this is not me being pissie or trying to lash at you're post. i didn't post that that is a base pattern so that's my bad. so please do not take it as me trying to start a fight.

[2000ZxT]

Yellow....what kind of pressure are you looking at running?

I am going to be running 22 psi this year with a SVT IM. They have been proven to take that.

Raven: Im not trying to attack you but the IM is one of the last things you need to worry about. You could buy that Jay racing manifold and you would gain maybe 3 whp. I will be going to a aluminum manifold over the winter so I can run upwards of 25 psi, the real point of it.

[ravensguildassasin]

that's sort of why i am making one myself i will eventually go forced air.

[yellow2000S/R]

Yellow....what kind of pressure are you looking at running?

I am going to be running 22 psi this year with a SVT IM. They have been proven to take that.

Raven: Im not trying to attack you but the IM is one of the last things you need to worry about. You could buy that Jay racing manifold and you would gain maybe 3 whp. I will be going to a aluminum manifold over the winter so I can run upwards of 25 psi, the real point of it.

If they've been proven to take 22 psi, I'll be fine. I'm basically going to get the engine to flow good and see what power I can get from that (basically N/A build minus cams, and high compression) then add boost after that.