Nitrous Question

[SLoW_SHO_316]

Assuming someone I know wants to put nitrous in their SHO and purchased an NX EFI wet kit with everything you need to make it work, but they don't want a wet shot (got the entire kit for DIRT cheap, so please don't suggest buying a dry kit). What part from NX would this person need to convert this to a dry shot.

Also, stock injectors/fuel pump is fine for a 75-100 dry shot right? This person just needs to figure out how to make the injectors go full tilt while spraying. I think.

 

[RJ-92]

Not much you will be able to use to convert. From current wet kit you would keep: Bottle, lines and switch (maybe some of the jets too). That's about it. The wet kit uses seperate solinoids for Fuel and N2O.

From a dry kit added you will need: the brian (NMU as zex calls it), what ever type of switch to trigger it, vacuum hoses and the proper jets.

Injectors would be OK on a stock or bolt-on motor with a75 kit. Fuel pump even at that level is pushing it. I would recomend atleast a 155lph unit.

If your running an all out 3.2 and plan on running a 100 shot. The injectors are very near their limit as well. 30lbers would be some cheap insurance.

 

[SLoW_SHO_316]

By looking at the kit, it looks like I'd be able to use...

bottle, long line, short lines, 1 nitrous solinoid, the switch, and the jets. All the jets are the same wether or not its wet or dry. I'd plan on running the .037 jet.

On my friends cavalier, that was the setup, however there was this big blue thing that attached to his FPR by a vaccum line. I guess thats the part I'm trying to find here. When the nitrous was activated, this somehow stopped the fuel going to the return line and forced it through the injectors, and he was fine on an .040 jet.

 

[SLoW_SHO_316]

Correct me if I'm wrong, but doesn't unplugging the MAF turn injectors to 100%?

 

[TYSHO]

I'd just sell it and get a dry kit, those can be found on mustang forums for cheap [under $300].

 

[TYSHO]

Correct me if I'm wrong, but doesn't unplugging the MAF turn injectors to 100%?

Wheter or not it's true, it's not something you want to do when spraying nitrous.

 

[Axianator]

Correct me if I'm wrong, but doesn't unplugging the MAF turn injectors to 100%?

Negatory. Brian is correct - do not unplug your MAF while spraying nitrous.

 

[SHOMurph]

Negatory. Brian is correct - do not unplug your MAF while spraying nitrous.

KAAAA BOOOOOMMMM!!!

 

[SLoW_SHO_316]

Alrighty then. Too bad NX doesn't make ANY dry kits or else I could get one, or at least the parts to turn this wet kit dry. I don't think the parts from NOS or Zex will fit with what I already have.

:cry:

 

[dappie99]

Correct me if I'm wrong, but doesn't unplugging the MAF turn injectors to 100%?

no it won't it will just go into speed density mode running without the maf signal.

 

[SASHO91]

I though Speed Density was a whole different system.....


allthough i guess it would work... as we have the MAP,BARO, and another sensor.... arent those all the SD system?

 

[SuperchargedSHOguy]

I'd just sell it and get a dry kit, those can be found on mustang forums for cheap [under $300].

I second that. My zex dry kit was like $200 used

 

[SASHO91]

WHAT?!?!?!?!

what mustang forum are yall looking through????

 

[SuperchargedSHOguy]

I bought mine local through a car club. Everyone there runs or wants to run wet.

 

[TYSHO]

WHAT?!?!?!?!

what mustang forum are yall looking through????

www.corral.net
www.dfwstangs.net
www.stangnet.com

Go get one!

 

[Axianator]

no it won't it will just go into speed density mode running without the maf signal.

Actually, in the event of a MAF sensor fault or failure, the V6 SHO's failure mode strategy is programmed to substitute MAF airflow values from a predefined table based on engine RPM and TPS voltage until MAF sensor readings comes back into the proper, predetermined range. Nowhere in this strategy does the EEC use or rely upon a speed density-type failure mode.

 

[SLoW_SHO_316]

My friend has a 2001 SS Camaro, he would just spray a dry 150 shot straight through the MAF into the intake, with nothing else. He said the MAF reads the extra oxygen coming in, and some tempature sensor reads the low temp and it adds fuel to compensate. He proved this on the dyno when he made 490whp and 525wtq with a near perfect a/f.

Would it be SHO Boom if I tried that same thing with a 75 shot?

 

[SASHO91]

i think the ACT wouldnt read the temp... as nitrous is way lower than the "cutoff" for the ACT...

allthough... it might, if you placed it far enough downstream.... but its a long shot...

i know your trying to work with what you got.. but try picking up a ZEX FMU on Ebay....

and i think the MAF would peg the voltage... as it would be forcing more air in, obviously... now if you had a bigger maf... this might not be a problem.... I.E Pro M-80.....

 

[TYSHO]

So you're saying he used a wet kit without the fuel delivery?

Anyways, what does the stock MAF peg at? Is it going to peg when you spray through it and depend on it to adjust the fuel flow?

It looks like your only asking for problems with this kit and are trying your best to get it to work with your SHO. You just need to sell it and get the proper type of kit needed for your application. If that's too hard to do, putting nitrous on your car is not a bright idea.

Edit: Do you know the history on your stock fuel pump? If not, I wouldn't even think twice about spraying. The pump might be functioning fine under N/A conditions, but once you spray and it can't keep up with the flow you need, BOOOOOOOM!

Looks like you're trying to jump on a bus with no ticket.

 

[SASHO91]

5V's..... IIRC.