I'm curious about the direct port system. I drive a 99 Prelude base model. I've heard my block can handle 100 shot on stock internals with an upgraded fuel system. True? And I want to know what is the SAFEST way to shoot nitrous. Doesn't matter the price yet. I figured the regular $500 kit wasn't that safe thinkin that if I shot it through my intake the first cylinder may get more than the last cylinder. ??? I know most of the people who use nitrous on the strip and in the magazines use a very clean direct port system. I've seen the NX set-up and it looks tight and I hear its the best. But anyways, if some people could give me some input about this help me out. Thanks.

 

Direct port is the safest way to distribute it evenly
but i wouldn't use it for anything less than a 100 shot.
as for what the stock motor can handle, depends on how healthy
the motor is. do a leakdown and compression test
you will also want to have some sort of ignition retard to
reduce detonation

 

Thanks for the input. Does anyone have anymore. I want to do a serious direct port nitrous set-up so I want to know EVERYTHING. Any Kind of input about nitrous and H22 let me know please. I know not to many people talk about nitrous anymore its all about turbo. I just want it safe and a lil different

 

As said I would not push more than a 100 whp on you motor (this means a 75 of NX, or 100 of NOS or ZEX) I personally feel you can still shoot that much through a single fogger, but DP is definately nicer. If you are running 100 shot or whatever, you will be advised to get some sort of timing retard apparatus and a fuel pump minimally. And as it was said, make sure your motor is in sha[pe for the juice....

 

Well, I think my motor is handling quite nicely. I have about 71000k on the motor and everyone says its the fastest Lude they've ever raced. I think I got one of them "Wednesday" motors. Anyways, if you could suggest what to get it would be nice. Like Fuel pump, regulator, rail, injectors, MSD (Specify which type and others cause I don't really know anything about MSD or ignition) and I was gonna get a AEM EMS. Sound good? Let me know.

 

wheter you think its fine or not you need to check (compression and leakdown)......Id get a fuel pump, ignition (with retard, there are many out there, msd dig sci will work for cheap) and maybe an aem fuel rail (only to simplify installation)

 

So where can I get my compression checked and leaddown. And if something is wrong what would I do to fix it? Is leakdown just finding leaks?

 

any mechanic should be able to do that
i think the aem ems would be over doing it but
if you got the money go for it.
a leakdown test is to see if there is any blow by in the cylinders i believe

 

Could someone please explain what direct port means?

I used to hearing terms like wet and dry shot...whether the nitrous is added into the intake, or mixed with fuel (usually in the fuel rail)


Thanks.

 

e.g. of direct port

 

Thanks for the fast reply. How much would this setup cost? Also D.P is used with 100+ hp shots? Any drawbacks with D.P?

Thanks.

 

That has to be one of the sickest looking DP setups I have ever scene. Very nice!

 

got that pic from here http://members.tripod.com/~Pre_ludE/index2.html

and yes that is a sick setup

 

DP is becoming a major pain in my dick!!!

got the setup all nice and done. go to install it. oh damn. the firewall is in the way. ok, now the clutch lines are in the way. **** **** damn!!! have to redo a line... where the hell do you find 3/16th in SS tubing! finially find it. BAM! jet fitting breaks! ****!! nobody in town carry's NX part # 91017!!! order it online, a week later it shows up, now i can start bending tubing all over again. now none of my nozzles face down like they should. they are all at a slight angle. **** **** damn!!!!

do yourself a favor. i am going to do this as soon as i get an extra $120. get soft lines. for NX get -3an lines. 4 - 12" sections for fuel, and 4 - 12" sections for N20. mount the solenoids on the damn firewall and dont worry bout em. the tubing is such a pain! i started it 3 weeks ago and am so pissed at it i still havent gone back out to finish it all up. just one thing after another.

now i know when i get it all done im gunna be all excited and not pissed and bla bla bla, but here it is right now.

 

nothing worth doing is easy... but yeah when you are done you well be happy .

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by theshakeyeggroll &raquo;</TD></TR><TR><TD CLASS="quote">DP is becoming a major pain in my dick!!!

got the setup all nice and done. go to install it. oh damn. the firewall is in the way. ok, now the clutch lines are in the way. **** **** damn!!! have to redo a line... where the hell do you find 3/16th in SS tubing! finially find it. BAM! jet fitting breaks! ****!! nobody in town carry's NX part # 91017!!! order it online, a week later it shows up, now i can start bending tubing all over again. now none of my nozzles face down like they should. they are all at a slight angle. **** **** damn!!!!

do yourself a favor. i am going to do this as soon as i get an extra $120. get soft lines. for NX get -3an lines. 4 - 12" sections for fuel, and 4 - 12" sections for N20. mount the solenoids on the damn firewall and dont worry bout em. the tubing is such a pain! i started it 3 weeks ago and am so pissed at it i still havent gone back out to finish it all up. just one thing after another.

now i know when i get it all done im gunna be all excited and not pissed and bla bla bla, but here it is right now. </TD></TR></TABLE>

so true...there is no room to work with for a direct port system on an H22...here's my friends setup, changing the jets is really hard with the nozzles located in the back









my setup is still a work in progress but with my setup the nozzles are located on top of the intake manifold instead of behind it because i do not have enough clearance between the firewall and the intake manifold because i have a Civic...even with the soft lines its still a tight fit due to the IAC valve

here are my lines...i'll have a picture of how it looks in my car as soon as i get out of school



Modified by soopafly828 at 10:48 PM 4/12/2004

 

Good stuff. The pictures make everything clear. A lot of you complain about the lack of space due to the firewall, etc. I have a H22 in my 6th gen accord, and the engine is almost touching the firewall. So, if DP is not an option, would you guys recommend wet or dry shot? It seems that the majority favor dry, since the wet can cause "clogging."

Thanks a lot.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by -Bionic- &raquo;</TD></TR><TR><TD CLASS="quote">Good stuff. The pictures make everything clear. A lot of you complain about the lack of space due to the firewall, etc. I have a H22 in my 6th gen accord, and the engine is almost touching the firewall. So, if DP is not an option, would you guys recommend wet or dry shot? It seems that the majority favor dry, since the wet can cause "clogging."

Thanks a lot.</TD></TR></TABLE>

i have never heard any luder complain about "clogging". dry is ok for a 75 shot or less. the wet kit is better for a 75 shot and up.

 

Good thing I heard about the problem with bending the lines before I did mine, so I went out and bought the flexible SS lines. Glad I did. They cost quite a bit, but im happy I got them. DP on an H22 is a bitch though. There is literally no room where the firewall is and barely any under the intake manifold. I ended up putting mine in the front, but they stick out in different directions in order to avoid obstacles...lol.....they are all even though and spray evenly.

 

here's my setup as promised (still a work in progress)
the electrical tape is they're so there are no air leaks

motor shot:


clearance issue because of the IAC valve:

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dvp95 &raquo;</TD></TR><TR><TD CLASS="quote">DP on an H22 is a bitch though. There is literally no room where the firewall is and barely any under the intake manifold. </TD></TR></TABLE>


What's preventing you from DP-ing underneath the intake manifold? The IAB reservoir/vaccum tank?

Thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by -Bionic- &raquo;</TD></TR><TR><TD CLASS="quote">


What's preventing you from DP-ing underneath the intake manifold? The IAB reservoir/vaccum tank?

Thanks</TD></TR></TABLE>

My knowledge that it will be a pain in the *** to change the jets later....lol....im glad I didnt.

Soopafly828--why didnt you angle your nozzles so that they shoot straight into the cylinders rather than into the sides of the plenum?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dvp95 &raquo;</TD></TR><TR><TD CLASS="quote">

My knowledge that it will be a pain in the *** to change the jets later....lol....im glad I didnt.

Soopafly828--why didnt you angle your nozzles so that they shoot straight into the cylinders rather than into the sides of the plenum?</TD></TR></TABLE>

How often would one need to replace the jets?

Thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by -Bionic- &raquo;</TD></TR><TR><TD CLASS="quote">

How often would one need to replace the jets?

Thanks</TD></TR></TABLE>

Depends on what you are doing. If you want to run 100hp jets and know that you will never change them, then by all means install them under the manifold and never look back. I started at 80hp jets and will probably change to 100hp this summer, so it all depends on you.