which IM for 3.0?

[Bradness]

Who's using what and why here? I'd like to keep the EGR operable and the sleeper factor (stock 2.5) is cool IMO. Does the plastic 3.0 UIM actually make more HP and where in the rev range (if so)? I'm not worried about a t-body as I have a 65mm which has been modified to mount on the SVT UIM and use the stock cable. How about LIM's-secondaries or not?

Let the opinions flow...

 

[Harrry]

Brad burrita took some time and did a dyno comparison of a few styles of UIM manifolds a few months back. Take a look over in the dyno section for his postins.

 

[svt1480]

ok in my opinion. the

3L IM is plastic which is colder then the metal svt IM
and the secondaries you can leave them open your ecu will still run the same..
and when you port match the heads you literally take off 3/16 all around the ports. so you get a lot more flow then 3L.

i think people do 3L IM cause it gets passed the port-matching.. an most people dont know about bugzuki's port-matching plates. to make it easy to do your self

and i believe the TB on 3L is bigger then the svt one...

SO SVT TOP END IS BETTER. I THINK ITS MORE CUSTOM TOO...

 

[KAOS_3.0]

good thing thats only an opinion, good lord.

stock 3l or true hybrid work best. mixing and matching ports has so many draw backs I don't even feel like typing them all out here.

something I havent heard of would be SVT intake manifolds with 98 3l heads on a low mile 02-04 short block. thats also an option if you really love the sleeper look.

 

[TRicker]

the problem with that is the split port 3l heads are not cam driven water pump style. so you can't really use them with SVT cams, which ruins the idea of using the SVT intake manifolds.

i have personally done a port matched with SVT cams and intakes, and i now have the full 3L with the newest style intake manifolds, and 04 cams. they definately fall on their face after 6000 rpm. i will say that. but the power from 2500-5500 is undoubtably higher. the torque is insanely higher. my first 3L made 205 WHP untuned and it had huge power from 4000-7000. i miss that power, but it was so slow from a dig it was sad. now this setup is torquey and its so badly tuned i know it will scream when its all done. my plan in the future is to get a st220 intake (currently impossible, or at least over priced) which will give me enough flow on the top end to keep the power till redline (at least i hope so) i did make a mistake getting rid of the svt cams but i really didnt want to spend the time swapping them out, and a new engine combo seemed more fun at the time.

 

[svt1480]

good thing thats only an opinion, good lord.

stock 3l or true hybrid work best. mixing and matching ports has so many draw backs I don't even feel like typing them all out here.

something I havent heard of would be SVT intake manifolds with 98 3l heads on a low mile 02-04 short block. thats also an option if you really love the sleeper look.

good god what?? i have it that way an i dont have a problem with the power... how would a stock 3L with smaller holes then port-matched svt LIN an UIM. there a lot bigger.
im kinda curious the whole 98 3L head thing.....

im right your wrong lol

 

[BrApple]

the way I see this its all about preference. what do you like more in terms of looks? where do you want your power? etc.

you need to ask these questions to yourself to determine what type of 3L to build. I personly like the secondaries and wanted to keep that. Is porting the 3L heads optimal for air flow/turbulence/velocity .... most likely not. Its a compromise I decided to make.

As tricker noted there is a big difference between the straight 3L and the ported 3L with SVT parts. that is the choice that needs to be made.

as we see already some people will always prefer on build type over another.

bottom line both will work and make good numbers with the correct build and tuning.

fyi at a recent dyno day NECEG had the highest ported 3L put down 188 on a mustang dyno. The highest tuned ported 3L put down 198. A 3L hybrid put down ~180. did not have any striaght 3Ls present. But I will be making a post about this soon.

 

[KAOS_3.0]

good god what?? i have it that way an i dont have a problem with the power... how would a stock 3L with smaller holes then port-matched svt LIN an UIM. there a lot bigger.
im kinda curious the whole 98 3L head thing.....

im right your wrong lol

you could always use an aftermarket electric water pump.

you should probably get a better understanding of how the two completely different port types mix the air-fuel

port matched engines will work, but their not optimal.

I personally like the swirl port design, but theres not really a great way to build a 3l that way right now.

ford is planning on a VLIM for the duratec 35 though, so the future looks promising.

 

[Pudmunkie]

ok in my opinion. the

3L IM is plastic which is colder then the metal svt IM
and the secondaries you can leave them open your ecu will still run the same..
and when you port match the heads you literally take off 3/16 all around the ports. so you get a lot more flow then 3L.

i think people do 3L IM cause it gets passed the port-matching.. an most people dont know about bugzuki's port-matching plates. to make it easy to do your self

and i believe the TB on 3L is bigger then the svt one...

SO SVT TOP END IS BETTER. I THINK ITS MORE CUSTOM TOO...

Stock computer will run either swap ok - both need a tune.

full 3 liter takes NO fabrication work now that Joey has the fuel rail block. ZERO! that or you can spend ing days porting the heads... Bugzuki's plates are sweet.... but FYI; taking all that material out doesn't do for performance. You may have ground out some metal but you fubar'ed the flow characteristics and fudged the injector position.

3liter TB = SVT TB Diameters are the same. 3 liter has built in IAC ports to clean up the engine bay.

SVT top end is better----- and thats all its better at. A full 3 liter walks away from low RPM all the way to where you just start making power, and then they shift and are back to making power. You shift and you're back below your power band.

im right your wrong lol

Sorry, you've got NO clue.

 

[Pudmunkie]

also... if you want 'more custom' take the money and get the valve covers PC'ed. or other trick bits.

Stock looking = not custom (though I like the look)

 

[PurdySVT]

How well do the 04 cams work with the SVT intake and bugzuki plates? Will this combo give it some low end crunt with top end power or will it wash out the benefits of the othere? I do like how Pudmonkie's PC'ed cam covers make the engine look, but the blastic intake just doesn't look right to me.

 

[BrApple]

that or you can spend ing days porting the heads...

this is the only thing I have an issue with. it can be done in a few hours, 2~3 actually if you have the right tools and knowhow/experience.

 

[KAOS_3.0]

this is the only thing I have an issue with. it can be done in a few hours, 2~3 actually if you have the right tools and knowhow/experience.

either way it's screwing around with shapes that took a whole team of people a long time to design.

in your case, with a turbo, intake port harmonics become a bit of a moot point though

 

[BrApple]

either way it's screwing around with shapes that took a whole team of people a long time to design.

in your case, with a turbo, intake port harmonics become a bit of a moot point though

I never said it was optimal but it works.

 

[Beans]

There are pros and cons to both. I have only done a port matched but i have a pretty good idea for the other.

Portmatched - I like the look of the SVT UIM though it is metal I cant see it making THAT much of a differance, i like secondaries, i love the Power curve the secondaries give, nothing like it. No need to modify fuel rail. IIRC i remember seeing someone who's car caught on fire when gas leaked :help: (that's what ended up scaring me out of full 3L) I Know Nautilus makes the LIM adapter and fuel rail mod, but the adapter eliminates secondaries, which i wanted, but after all that porting i can say i think i would rather have bought that. It is a beeyoch. Oh and i don't have to relocate the coil pack

3L- I think the IM is ugly, it looks out of place IMO, It is more ideal for injector spray and it is probably way more efficient than port matched not having all that air dump in the same space anyway. Have to buy/make/modify fuel rail, have to find a place for coil pack, that leads to custom wires.

Ive rode in quite a few 3L's also, the SVT cammed 3L i was in was more 'boring' than the split port 3L's I've been in. Fast but not as interesting

I dunno, it all comes down to preference, time and cost, if i could go back i would like to try and do a full 3L I think.. the Porting just takes days as Pudmunkie said It's tedious as .

Now if my mystake motor blew up i would do a full 3L just because the cost/time is significantly less, and i don't care how fast/slow it is.

 

[svt1480]

you've got to be joking.... lmao:laugh:.. it takes just a few hours "smart guy"."to port". and how can you HONESTLY say you DONT get more performance out of a ported 3L???? the holes are bigger.... and that part cost MORE money... and the svt top end puts out more!
you have no clue lol
oh and explain fudged lol..

Stock computer will run either swap ok - both need a tune.

full 3 liter takes NO fabrication work now that Joey has the fuel rail block. ZERO! that or you can spend ing days porting the heads... Bugzuki's plates are sweet.... but FYI; taking all that material out doesn't do for performance. You may have ground out some metal but you fubar'ed the flow characteristics and fudged the injector position.

3liter TB = SVT TB Diameters are the same. 3 liter has built in IAC ports to clean up the engine bay.

SVT top end is better----- and thats all its better at. A full 3 liter walks away from low RPM all the way to where you just start making power, and then they shift and are back to making power. You shift and you're back below your power band.




Sorry, you've got NO clue.

 

[BrApple]

you've got to be joking.... lmao:laugh:.. it takes just a few hours "smart guy"."to port". and how can you HONESTLY say you DONT get more performance out of a ported 3L???? the holes are bigger.... and that part cost MORE money... and the svt top end puts out more!
you have no clue lol
oh and explain fudged lol..

just because the ports are bigger doesn't mean its better. there inhearent problem with porting out the oval port to the size of the split port is you disturbe the air flow and velocity. in the split port each runner on the UIM is directed straight into the combustion chamber. now with the you take an individual air flow and dump it into a large chamber, it slows the air velocity and might cause problems with fuel atomization.

as it has been said there are advantages and disadvantages to both setups.

 

[BrApple]

I dunno, it all comes down to preference, time and cost, if i could go back i would like to try and do a full 3L I think.. the Porting just takes days as Pudmunkie said It's tedious as .

what did you use to port the heads? must have been a dremel if it took days to complete. using the correct bit it should take a few hours. I have seen many 3Ls ported in the time it take to pull the old motor.

 

[Rara]

you've got to be joking.... lmao:laugh:.. it takes just a few hours "smart guy"."to port". and how can you HONESTLY say you DONT get more performance out of a ported 3L???? the holes are bigger.... and that part cost MORE money... and the svt top end puts out more!
you have no clue lol
oh and explain fudged lol..

Seriously dude, just stop.

 

[Beans]

Well for a couple hours a day I'd say it took me 6~7 Hours To get to SVT spec and maybe another 3 to get to sho-shop spec, I was using a big bit and a Air die grinder :shrug: