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Re: Best place to get Mondeo ST220 UIM & LIM?
#1565544 05/10/06 02:01 AM
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Originally posted by kinger:
Originally posted by 96BlackSE:
But how much air does the engine need?



A LOT stock take what 260 CFM to make 200 fwhp, this bad boy needs to make 700 hp

Originally posted by 96BlackSE:
How much are you hurting the velocity when your overporting and how good is the fuel atomized?



Under 20+ psi of boost velocity and fuel atomoization are not as important as volume which takes precendence.


CFM is only half the story

Boost is different in the case of velocity but fuel atomization is still very important



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Re: Best place to get Mondeo ST220 UIM & LIM?
#1565545 05/10/06 02:01 AM
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Originally posted by gotapex:
Originally posted by kinger:
Originally posted by gotapex:
In terms of the ST220 intake:

Is the lower intake manifold the same as the standard oval port 3.0L one we get on the Escape block here?



I 'believe' so might ask 96blackse to give us the measurements. The difference is in plenum volume which is much larger on the ST220 IIRC.



96BlackSE:

What say you on the LIM? Happen to have the dimension on that? If it's identical to the stock one, at least I can save a bit of money there.



The lower should be the same as the lincoln ls 3.0 lower...
I'll put it beside an escape lim get measurments and let you know

True the plenum volume on the st220 is much larger

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Re: Best place to get Mondeo ST220 UIM & LIM?
#1565546 05/10/06 02:07 AM
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Don't forget the "split port" aluminum 3L UIM that a few of us turbo Contour guys have been using with great results. It has awesome characteristics for a FI motor and shouldn't be over looked.

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Re: Best place to get Mondeo ST220 UIM & LIM?
#1565547 05/10/06 12:16 PM
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Originally posted by TC'd Swazo:
Don't forget the "split port" aluminum 3L UIM that a few of us turbo Contour guys have been using with great results. It has awesome characteristics for a FI motor and shouldn't be over looked.



That isn't a bad thought Swazo! It would be better then the ST220 in Gabes case because you wouldn't have to swap heads. Although I am unsure to the plenum volumes of the 99 3L split port versus but yes at least the ports would flow much better and Gabe you couls still use your SVT LIM and just swap this on while sitting on the dyno. (use your original turbo piping, etc)

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Re: Best place to get Mondeo ST220 UIM & LIM?
#1565548 05/10/06 01:55 PM
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Originally posted by TC'd Swazo:
Don't forget the "split port" aluminum 3L UIM that a few of us turbo Contour guys have been using with great results. It has awesome characteristics for a FI motor and shouldn't be over looked.



That's what I'm using.

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Re: Best place to get Mondeo ST220 UIM & LIM?
#1565549 05/10/06 03:09 PM
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Tom, that in-depth analysis is great. If you take a cross section of the dual runner twin ports, and compare that with a single oval, you might conclude that the dual runner manifold is going to flow more.

One more twist on this is the length of the runners (two different lengths with two different diameters on the dual runner manifold) as well as the end tank volume. Don't forget the two pipes from the TB to the end tanks on the dual runner.

Just for this scenario, lets assume the throttlebody opening is the same.

In the end, the thing that really matters is how much air can effeciently be pushed into the head at a nice range of RPM's.

Ooohhh.... How about the 3 stage Jag X-type intake manifold?

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Re: Best place to get Mondeo ST220 UIM & LIM?
#1565550 05/10/06 09:04 PM
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Yeah, there is an advantage to the 3L oval plenum being a bit larger and also a shorter, more straight shot into the manifold but that again may only manifest as a benefit in certain operational rpm ranges.
All I can say is the dual runner hasn't proven to be a restriction, has proven to provide a wider/flatter curve on the basic production motor, and similar on 3L hybrids.
As for FI, I ran it and it was not apparent to me that there was any significant restriction from it for FI. With the secondaries still working it did restrict airflow below IMRC (obviously) with the turbo and that did reduce some of the potential torque around the 3000+ to 3800rpm where the IMRC opened. However, below that it did not impact it and above that it did not.
THis was a benefit in that it allowed traction, but then the sudden onset of power with IMRC open point would easily break traction. It was a moot point for racing type driving because I could and did launch so quickly that IMRC wasn't a noticeable issue, but if I were driving normally, it enabled the car to run very nice, stock-like and with good economy of fuel. Best of both worlds I think.

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Re: Best place to get Mondeo ST220 UIM & LIM?
#1565551 05/11/06 03:45 PM
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Well, it's been said several times by Leo Capaldi and Terry Haines that the head is the biggest restrictor in the intake department. LOTS of metal can be removed and larger valves (3L) can be put in the 2.5L heads.


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Re: Best place to get Mondeo ST220 UIM & LIM?
#1565552 05/11/06 09:58 PM
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Originally posted by 96BlackSE:
Originally posted by gotapex:

96BlackSE:

What say you on the LIM? Happen to have the dimension on that? If it's identical to the stock one, at least I can save a bit of money there.



The lower should be the same as the lincoln ls 3.0 lower...
I'll put it beside an escape lim get measurments and let you know

True the plenum volume on the st220 is much larger




Thanks, looking forward to your measurements.

Originally posted by TC'd Swazo:
Don't forget the "split port" aluminum 3L UIM that a few of us turbo Contour guys have been using with great results. It has awesome characteristics for a FI motor and shouldn't be over looked.



Have a picture of it? What's the difference between it and the 2.5L SVT split port?

Re: Best place to get Mondeo ST220 UIM & LIM?
#1565553 05/12/06 01:20 AM
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It's really not a split port design. The only thing that it has that allows it to be used with a split port LIM is a 1/4" section that's like an adapter plate at it's mating surface. The runners are a decent sized oval, which is why I chose to use it with my "tumble" port heads like you may use.

I'll have to look for some of my pics of the UIM when I was porting it.

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