lq1 direct port nitrous install question

[dohcfiend]

recently i am thinking about upgrading to a direct port setup and that noszle wet setup is looking nice.

it looks as though the setup may alter the efi port geometry slightly.

do you guys think the noszles will work with the fuel rail setup on the 96 intake setup?

i think it will make the rail like 1/8-1/4 inch higher.

[Guest]

RE: lq1 direct port nitrous install question

need a pic of the fuel rail to give you an answer. Is it a two peice rail? one peice?

[Kevwood]

I measured it out in the spring and the injector cup raises the rail too high to fit under the plenum. I was and guess still am considering this as one of my future set-ups paired with the NX Maximizer II. My motor was originally built to spec for this application. All you need to do is have a spacer CNC'd up and you're ready to go. The only down-fall is that it's a minimum of a 100 shot without a progressive controller, so if you aren't built to run nitrous I would be learly to squeeze it too much.

[dohcfiend]

i couldn't wait, i got a deal on the upper 1/2 of a noszle system off of ebay. i have a 96-97 plenum and i think there maybe more room, if not i can always resell it.

hey kevwood, i was thinking of getting a new design dis4 box with the step retard feature and pulling some ignition timing out when the nitrous activates. u think if i yank about 6 degrees out of the timing, that the motor could handle a 100 shot? only bitch about that is the rear plugs

also that pic is coming for ya shaun41178.

[Dave96z34]

Do some thing like this so you dont have to mess with the geometry problem. I will have to do it to make room for the sc adapter. When ever I finish that

[Guest]

I saw that kit that you picked up. I too was looking at snagging it just to resell it.

Yup wont' work with the stock fuel rail. Its a one piece design. You would have to modify it like above in order to make it work. Not sure if there will be a clearence problem with the late model upper intake, but with that fuel rail it wont' work.

Why not just use regular fogger nozzles and drill and tap the intake? Thats what I did. I got 6 13700B fogger nozzles and drilled and tapped the intake plenum for them. this was on my fiero 2.8 intake. I too tried to get the noszle kit to work but with the fiero one peice rail it changed the geometry of the rail so that one bank would fit, but the other bank would not. I posted pics like a year or more ago on this. You would def have to cut the rail to make it a two peice independent of each otehr with like a flexible braided hose or something if you want it to work.

You have two separate rails so it wouldn't be too much work but it would prob have to be something like that pic above for it to work.

FYI you dont' need to run a minimum of a 100 shot with a direct port setup. It works just fine with a 50-75 shot as well. Just need to buy the appropos smaller jets to get there. Most direct port kits give you jets for 100+ gain. Just need to buy smaller jets is all.

[Kevwood]

hey kevwood, i was thinking of getting a new design dis4 box with the step retard feature and pulling some ignition timing out when the nitrous activates...

I was on the same lines of thought, I bought the DIS4 a few years back along with the multi channel boost control #6562 - it has a 12v input that triggers it to pull timing when the nitrous is activated. As much as most guys don't feel that there is a benifit to adding MSD to our engines I was quite satisfied with the results of the DIS4. By the time the winter ends I will have the 6562 under the hood as well. I have so much going on with the car right now I'm starting to doubt that I'll have it done by spring.

[dohcfiend]

hmm, i have a spare cadi northstar rail laying around. perhaps i could modify that?

i may resell it after i get it. it appears it was mis-advertised, after talking tothe seller it is in fact a v-8 kit it has 7 noszles and missing one. so i would just have to get another noszle and resell it with the bottom half of mine.

on the other direct port setup, i do not have the hardware and plus it cost bux to get a professional to do it i am sure.

[Guest]

Sell that stuff that you just bought, and go buy the other hardware as you call it. If you can afford to buy the Noszle setup, then you should be able to afford the fogger nozzles after you resell that mustang kit.

Drilling and tapping the intake is easy too. YOu can do it yourself. Hell you are making up a supercharger mount for the dohc right? its much simpler then that.

[dohcfiend]

supercharger mount????? not me. i think one of the peeps in my aluminum timing cover g/b is going to make one. i'll check it out when i get it. i am sure the rail can be modified fairly cheap but well see. i may sell it do what u are talking about time will tell. appreciste the advice.

also on the distribution block? can i just plug 2 of the holes or do i have to get a v6 distribution block?

[Guest]

you can plug the extra holes that aren't used. 1/8th pipe fittings I think they are. Speed shops should have them in stock. I know mine does. Take the block there with you so you get the right size the first time.

You can modify the rail, or make a complete new one. I say you modify it with a lenght of braided hose in there to sort of make it a 2 peice but it will still be one, but it will allow flexibility like a 2 peice rail.

A local speed shop should be able to modify your rail for you. Its not hard. Cut it where you want, put the fitting on, flare it, put male fitting on one and female on the other. Prob cost $50 and most of it will be for the fittings.

[dohcfiend]

got the kit and did a little mocking. turned out better but yet worse.

the good:
on the distribution block, talked to NOS and yes it is official, i can just plug off 2 of the ports on it.
done the mockup, does not change the fuel rail geometry at all. no modifications needed to the rail.
stock injectors fit perfectly inside the noszles.

the bad:
these kits were designed for plastic intakes and some modification will be made to the intake to accept the noszles. the problem is before you get to the ports the injectors slide in there is a raised flare on the intake and it is kinda shaped like a Y and it cannot accept the noszles. i think it can be drilled out to a U shape to accept them.

the plenum cannot clear the raised rail. there is about a 1/2 inch gap. but this may change after the intake is modified to accept the noszles which will let everything sit down lower. at worst, an aluminum spacer would have to be made to compensate whatever the final measurement would be.

kinda ironic i sold an extra lim i had laying around. battery is dead in the camera but will have pics soon.

[Kevwood]

Hey Bobby, good to hear that it's coming along. I new that the intake spacer would be needed after measuring out for it myself but I didn't know there was another problem with a Y (?) on the intake.

Look forward to seeing your pics.

[dohcfiend]

here you go. one shows the planum to lim gap and the other shows the rail and injectors sitting in place no problem.

[dohcfiend]

one pic shows the how far off the noszle is or how much lower it needs to sit vs a stock injector on the left.

the other pic shows the Y i am referring to. if you look in there you can see the actual injector port but above you can see how it starts out a large hole but progressively gets smaller to the injector port.

my theory is it needs to get drilled to a U shape to accept the od of the noszle so it can set down further but not touch the actual injector port area with the drilling.