Contour Enthusiasts Group Archives Forums Modifications Forced Induction direct port possibilities.....

if i run direct port (well, a plate between the intake manifolds) is it going to restrict airflow much? i mean a nozzle in each secondary port, they can take up some space. this is the only thing im worried about. once i make a mock up piece i am going to have a plate CNC'ed about 3/4" thick. also will this make the car run worse? i dont know much about changine the intake heights but it will be alot like an intake spacer, with nozzles in it (lol durr) clearance issues will be taken care of, it will probably be 2 pieces, 1 for each LIM.....

if you guys have any other ideas i'm open to those too, i have thought about removing the secondaries and putting nozzles in the ports in the LIM but i dont want to lose so much power when i'm off the juice, either. thanks for any ideas!

Get a used lower intake manifold with fuel rail and cheap SE contour injectors. Then figure out how to plumb secondary N2O and fuel lines into the secondary ports. I think you can find a way to use smaller fogger nozzles and drill directly into the side of the LIM, then make a mini fuel rail for each bank. Remember ,you have room inside and outside of theLIM though it isn't a lot.

hmm, that sounds like a great idea. im going to see about finding some LIM's to mock up, ill post anything i can come up with

What you want is conceptually available from the company that provides 10year old technology. Imagin it adapted for the duratec. You'd have a ton of R&D to make it work. Or, you could figure out how to jam some of these in:

Just an opinion, but you're better of taking Tom's advice here.

my plate setup would basically be a plate that has 6 nozzles tapped in. and like you said, 10 year old technology. lets step into the year 2000 or so and get some NX shark nozzles. the only other way i could get a plate on it is to run it behind the throttle body but the plate would hit it and nitrous would still have to travel through the hot ass UIM. and look at the plate one more time, and look at the plate that you would have to make to go in between the LIM's and UIM. not even close! thanks for the input though

Why not try what War said...use the LIM as your "plate" and tap the nozzles into there. Sounds like it would work the best and seems very plausible. I don't know if you've had your UIM off yet, but if you have/or when ya do...you'll see there is quite a bit of room there to work something out.

yeah. the only thing im worried about it the thickness of the walls. i dont wanna blow the nozzles off the LIM lol. aluminum threads are soft

This aluminum is not that soft as it is precipitation hardened. Besides, you would need a very high pressure for that.

i know stangkiller did it on a cougar you might pm him on neco, or coogah who currently owns the manifold that was done i believe they tapped the uim to do it

wow man. i saw half that movie. it was horrible BTW.

and yeah, do this. hold your main feed line in your hand. open the bottle wide open. its pretty hard to hold still. 1000 PSI. it does make a diff. direct port gains are minimal but its still a gain. the main reason for me to do it is to run more nitrous than is recommended and further reduce the chance of puddling in the UIM. i'm going with the plates, because i dont have to ruin my UIM or LIM to do it. thanks for the input guys! i'll have pics as soon as csvt49 helps me build these things!

I see what you are both saying, but Stazi is right about blowing te nozzle...no way,..

if your one single fogger will withhold the 100psi...then 6 spread out and screwed into the manifold should be plenty...

But it would be less risk of puddling. It would be something new nonetheless.

actually the nozzle fits into a steel threaded 2 piece bolt that bolts on each side of the intake so it cant blow off. im just worried about soft aluminum threads. we'll see how it goes, when i try to mock up a set of LIM's

This is the only direct port picture I've ever seen on a CSVT. I have no idea the details behind the picture. IMO, this is the 'best' and 'easiest' way to go.

its not bad. its the easiest, for sure. but its not the best. you still have to pass through about 8" of intake manifold (very hot, aluminum intake manifold) my setup may put down a whole 10 HP more than that setup with teh same jets in it, but it will also be very clean considering i will have the black coated race lines on it and all the nozzles will be under the UIM so the only thing to be seen by the untrained eye is nitrous solenoids. which i will probably leave out in the open for looks oh and big red and blue anodized "shower head" distribution blocks haha


EDIT: maybe not 8" of intake manifold.... at a second glance. the only thing that sucks is (correct me if im wrong im real tired right now) he has the nozzles in the secondary runners correct? so it can puddle right up if he hits the nos before the secondaries open, or if the IMRC fails it'll puddle too.

I can't remember which is which. But wouldn't puddling not be an issue, if he weren't spraying until his secondaries were open? (Which is pretty much just for a second or two in 1st gear during a drag)

The short runners are the secondaries. Long tubes help low-rpm, remember?

With a window switch it's a non-issue.

thats what i would do probably. i was also thinking about making vacum secondaries from this SE that i saw in the scrapyard wheni was looking for used boxes. either way, i could just tap into the long runners too that works just the same

Flat out - Direct port systems are the most reliable, safest and most accurate nitrous setup available. the closer to the ports you get the less chance of puddling and seperation. Why do you think car manufacturers went away from throttle body injection? Multiport injection is more accurate, precise and efficent. The same follows through for nitrous injection. Seriously - how many sub 10 second EFI nitrous drag cars run anything but multiport setups?
HENRY