Direct Port Nitrous or Dual Stage??? Anybody using one? - Honda Prelude Forum

Draneusmc · 01-25-2004, 09:07 AM

I'm interested in becoming a bottle fed prelude. For the simple fact that it's cheaper than turbo or supercharger and I can get better gas mileage because I'm not going to be using it all the time unlike turbo or supercharged preludes who can't just turn them off. Plus I like the idea of getting the biggest bang for the buck.
I plan on upgrading my fuel system, ignition system, step 2 colder plugs, and possibly going with a dual stage type system or just direct port.
My question is, who is using direct port, and what kit are you using? And how are the results?

laughin2.2 · 01-25-2004, 03:43 PM

I ran a 75 shot through an NOS direct port kit. I made 217 whp and 202 with a rich 10.5 AF. I blew the powershot noid up several times and was overall not very impressed with the kit. NX would definately be a better choice. Tapping the runners was a PITA and if I had to do it again I'd tap them from underneath, use an ATR mani, or tap into the butterfly plate.
Don't use 2 step colder plugs. There is no reason to if you are getting an MSD box, unless you are running a huge shot.

Draneusmc · 01-26-2004, 06:36 PM

What was your setup at the time of those numbers? Do you have 1/4 mile times and setup as well???

Being in Central Florida I'd say if i can run 13's consistently I'll be happy. I am planning on direct port, and now NX brand. I'am also thinking about getting an inline fuel pump, and the accel 300+ digital multi strike ignition kit, custom exhaust 2.25", apexi vafc to enrich fuel, plus pillar pods with fuel and nitrous pressure.

Does that sound good to you. If i can cut costs anywhere to run 13's let me know, but i think i am too cheap as it is.....

NirVTEC · 01-26-2004, 06:45 PM

You can probably skip the fuel pump.
Sounds like a 13 second setup to me. Do yourself a favor and buy some Drag Radials or slicks.
Wait.....You have a SportShift?......Oh nooooo!!!
Plagued with 14's!......

Yet to see a 13 second SS.....Best of luck though!

Draneusmc · 01-26-2004, 08:51 PM

yea i know, i heard though that the aem tru power pulleys would help out a lot.......but who knows, maybe i'll work on my civic instead, who knows.......

axion68 · 01-26-2004, 09:17 PM

Quote:

Originally posted by NirVTEC
You can probably skip the fuel pump.
Sounds like a 13 second setup to me. Do yourself a favor and buy some Drag Radials or slicks.
Wait.....You have a SportShift?......Oh nooooo!!!
Plagued with 14's!......
Yet to see a 13 second SS.....Best of luck though!

Wasn't there an SS on here with nitrous that ran a 13? I tried searching but could find his S/N. IIRC he wasn't in the US either.

fliptout · 01-27-2004, 12:47 PM

Are you going with NX kit?......i have the NX Maximizer for sale BRAND NEW IN BOX! I had the NX Direct Port good stuff. let me know i need to get rid of this.

NirVTEC · 01-27-2004, 01:32 PM

Quote:

Originally posted by axion68

Wasn't there an SS on here with nitrous that ran a 13? I tried searching but could find his S/N. IIRC he wasn't in the US either.

I mean its definetly possible, but very unlikely. A fully built motor with trans work and a nasty DP setup would jump into the 13's..........

Draneusmc · 01-27-2004, 02:50 PM

not interested in buying anything yet, still sorting things out and researching......

Some bf-g drag radials on some lightweight 16's in front and stocks in back sounds like a must for sure.......

any other ideas you guys can think of to get into 13's???

what about dp with the i think "progressive controller" that increase the nitrous/fuel as you increase in mph?

I'd like to get up to a 80 to 90 shot of nitrous, progressively.

What do you all think?

NXLude · 01-27-2004, 02:52 PM

how much for the maximizer?

laughin2.2 · 01-27-2004, 03:45 PM

progressive controllers help alot. I wouldn't get one though unless you managed to eat up those BFGs on just a 90 shot.

Vapor · 01-27-2004, 03:46 PM

Quote:

Originally posted by axion68

Wasn't there an SS on here with nitrous that ran a 13? I tried searching but could find his S/N. IIRC he wasn't in the US either.

he used to be a MD prelude club member. Geremy. 13.89@101 on the stock SS tranny with a JRSC. from his mod list:

JRSC, JR ems, JR fpr, JR btc, JR V-pac, AEM CAI, DC 4-2-1 CC, Carsound 2.5 Highflow Cat, Apex-i N1 catback, MSD SCI-L Ignition, Blaster 2 Coil, Sti plugwires, NGK Iridium colder plugs

Draneusmc · 01-27-2004, 04:59 PM

damn and he ran a 13, so if i run a 90 shot with the proper ignition and fuel setup i'd be smokin', hopefully.

What about those zex cams, maybe that might be worth it, I honestly think i should not go more than a 75 shot due to my non-built motor, so I need to look into some other mods as well....

My goal is to build a 13 sec. SS prelude that is reliable (ha ha ha, well as reliable as a SS can be) and is done up not too expensive, but still can get better gas mileage over the turbo'd and supercharged crowd.

Personally I don't plan on using my nitrous frequently, probably three runs a month at the track.

laughin2.2 · 01-27-2004, 06:35 PM

Get a good header and a straight through 2.5" exhaust before you go buying cams.

axion68 · 01-27-2004, 07:10 PM

Quote:

Originally posted by Vapor

he used to be a MD prelude club member. Geremy. 13.89@101 on the stock SS tranny with a JRSC. from his mod list:

JRSC, JR ems, JR fpr, JR btc, JR V-pac, AEM CAI, DC 4-2-1 CC, Carsound 2.5 Highflow Cat, Apex-i N1 catback, MSD SCI-L Ignition, Blaster 2 Coil, Sti plugwires, NGK Iridium colder plugs

I believe there was an SS spraying that ran 13's. I think it was something like a 75 shot, all your bolt ons and a ported head/IM.

Draneusmc · 01-27-2004, 07:45 PM

straight through 2.5" exhaust? Is there anyone that makes one or would it have to be custom? As far as headers go, I think I'll go with the DC sports cc 4-2-1, mainly because of cost.

Hmmm a ported head, now that might be something, but it'd probably be real expensive. I can install the camshafts and whatever but a ported head? I'll look that up.....

Anybody have any opinions on the zex kits? Being at there website they seem to have some good parts that produce great results. What do you all think about zex? People on this forum have praised them as being kick butt and the only kit to buy but I am seeing a lot of stuff from the Nxpress guys, so what's up?

Our zex kits more reliable and give the most performance for the money, or what?

axion68 · 01-27-2004, 09:10 PM

Nitrous is nitrous, one kit isn't going to produce more power. Don't be fooled by how NX rates their shot sizes at the wheels where as NOS, ZEX, Vennom etc.. rate their shots at the crank. I would suggest the NX kit simply because it is a solid kit, and easy to troubleshoot. While the ZEX kit might be easier to install, there is a lot of items integrated into the barney box. If something goes wrong (chances are nothing will), then you will have to replace the barney box.

laughin2.2 · 01-28-2004, 12:03 AM

NX impressed the hell out of me. Even more so after I compared my conversations with Zex, NOS, and NX techs.

Draneusmc · 01-28-2004, 01:09 AM

ok, so what gains would I see versus a NX dry kit to a direct port kit if I am spraying a 75 shot on both kits?
In my opinion not much at least not anyone could tell by my time slips....
Direct Port to me seems like you can add a lot more nitrous but if your going to stay with a 75 shot then don't waste your money and just get the dry or wet kits........
I could convert my NX dry kit to a direct port just by getting the neccessary equipment from NX, right?
I think I just might do that, go with NX (because I here of NOS's stuff breaking a lot, Zex is like barney, edlebrock (who!?), and venom is way to expensive.....

So I have decided on doing the following:
20923-10 NX stage I efi w/ 10lb bottle
GENX-2 NX Gen-x 2 upgrade (living in florida if you think I can live with out this, let me know)
Nitrous pressure gauge
Fuel pressure gauge
Dual gauge pillar pod
2.5 or 2.25" custom "straight through" exhaust
DC sports 4-2-1 CC header
Aem Tru-Power Pulleys
MSD ignition box (which ever one is the simplest)
"brand goes here" inline fuel pump (maybe)
Optima battery (maybe)
grounding kit (maybe)
BFG Drag Radials on lightweight rims in front and factories rear
(definately going for these right after getting NX kit
Versus carbon fiber hood (maybe)

Hopefully I could be in the 13's with this type of set up. I was also thinking about getting a Vafc but I don't know if that'll help much considering NX's computer box is suppose to adjust the fuel but, I am still learning....

laughin2.2 · 01-28-2004, 09:07 AM

Direct port is really only useful if you going gfor over a 75 shot.
DC headers are crap.
You'll definately want the Gen-X upgrade kit.
MSD dig 6 is a great ignition
An inline fuel pump will require you to run a sump, which is fine, but a walboro 255lph in-tank pump would be cheaper, easier, and just as effective.