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oh ok, but i though a good set of oval ports could outflow a stock set of split port heads?? 
98.5 Black SE ATX
S&B filter, SVT MAF, optimized SVT TB, mesh grille, removed orange reflectors, painted rear reflector, gutted pre-cats, optimized SVT LIM, 19lb injectors, resonator removed
cant afford an svt but lookin for 1 in nc
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Split port INTAKE, as in the stock intake manifold mated to the oval port heads.
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Joined: Sep 2000
Posts: 9,602
Hard-core CEG'er
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Hard-core CEG'er
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Originally posted by gearhead98:
oh ok, but i though a good set of oval ports could outflow a stock set of split port heads??
You are just not getting it.
This entire thread is about matching oval port heads to split port manifolds.
Split port 2.5L heads are not even talked about though you are correct they are not the choice to use for many reasons.
Three very big ones being:
Oiling Issues!
Inferior flow
They cost more to use anyway (machining work and 3L valves)
2000 SVT #674
13.47 @ 102 - All Motor!
It was not broke; Yet I fixed it anyway.
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Joined: Mar 2003
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CEG\'er
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How exactly do you "center" the injector holes? It seems to me this would be very difficult to do in a split runner LIM. Also, what does one do about a fuel rail if they relocated the injector holes? Do you need to make a custom one or does it all just shift one way or the other an inch or two?
"Redline is just a suggestion... Sometimes isa necessary to missa use the car..." -Enzo Ferrari
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Joined: Aug 2002
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I don't think anyone here has "centered" the injectors. They've been using the "stock" split port injector location. The oval port "injector valley" is filled with JB Weld or similar.
-Chuck Dienzo
Black 98.5 E1 SVT
#5022 of 6535
Born on March 16, 1998
"If trees could scream, would we be so cavalier about cutting them down? We might, if they screamed all the time, for no good reason."
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You'd have to make a custom fuel rail. All and all, it is not worth the money to do so.....and there isn't any real performance gain to do so.
2005 Ford F150 SuperCab FX4
1964 Chevrolet Impala SS
1998 CSVT: 354HP/328TQ @ 10 psi, now gone 
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Originally posted by Swazo:
You'd have to make a custom fuel rail. All and all, it is not worth the money to do so.....and there isn't any real performance gain to do so.
No No No No. You have to make a custom fuel rail when using the oval port manifolds. I'd know as I installed one yesterday.
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Veteran CEG\'er
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Veteran CEG\'er
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The way you "center" the injectors is cut the new injector spots a bit angled so when the fuel sprays in it will go into both ports instead of just one. Basically aim the injector spot dead center between the two ports so it will just split when it hits the wall pushing half into each port.
1999 3.0L Cougar: 220fwhp and 200tq
2003 VW Passat W8 with 4 Motion AWD
http://www.cardomain.com/ride/300644
PM for intrest in 3L SVT Contours, 3L swaps into your current car, Prepped 3L engines, or anything 3L related.
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You guys are all talking about different things.
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Hard-core CEG'er
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Yes, yes, yes, yes, yes 
Custom fuel rail and and new fuel injector bungs placed in the center and the side mounted bungs filled in and ground smooth is one way of doing it.
But as Demon has told me, there is no real gain to doing it that way. The route he took has proven that to me and reusing the existing injector location of the split port LIM. It's all in the head work that makes it all work out.
2005 Ford F150 SuperCab FX4
1964 Chevrolet Impala SS
1998 CSVT: 354HP/328TQ @ 10 psi, now gone
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