Wet vs dry nitrous

[Foxman]

ok me and charlie (sic fiddy) had a little discussion on dry and wet nitrous kit.. I have always been pointed in the wet nitrous direction, mainly because the 5.0 mustang motors don't have a plastic composite intake like the Chevy LS motors, the plastic composite doesn't take the Fuel as well as the alum..

now after some research, the best/safes way to run dry nitrous on a 5.0 motors is to:

Replace stock injectors to 42lbs. if running a 150 shot
upgrade fuel pump to a min. of a 255lph
and a custom tune. (1 for nitrous and one for motor)

the wet kit:
upgrade pump to a 190lph or higher
one custom tune...

now i hear the stock injectors will work for the dry kit... but the problem is, is they will have to be maxed out on your nitrous tune.... as we all know that is not a safe thing for anything to be at its max when playing with nitrous or boost..

the only reason the 42lb injectors are suggested is they can be tuned for both motor and nitrous tunes and they will be very reliable if you want to even step to a 250 shot... not that the 250 shot is suggested but it is a possibility!

Now all this info isn't just internet searching... this is from my local nitrous GURU.. that has done moe then 100+ nitrous setups! Wet and dry Ford and Chevy motors!

 

[atlblue98gt]

wet shot all the way. Ive got a wet 150 shot.

 

[blackstallion06]

wet shot for me as well. I plan on bumping mine up to a 175+ after I get back from west pac

 

[Foxman]

I agree the wet is the way to go... but there is nothing wrong with going dry.. the install is a little easier.. but it will cost more...

also i would like to add that the controller from Zex that controls the Fuel pressure regulator... All it is doing is tricking the Fuel pressure regulator and its not a safe way, mainly because of consistence...

 

[wickedstangs]

With a dry system you are limited on HP some kits are rated at 50-100+ It is alot safer than a wet system.

Now a "dry system" can be a pretty cool system to run and be very safe, if you think about it. I use to plumb it right before my mass air meter and trick the computer back into the cold start mode. In cold start mode, the computer injects more fuel into the motor just like a carburetor does when the choke is on. Other sensors detect the oxygen rich air and adjust the fuel mixture and timing to compensate for this extra income of oxygen making this system near fool proof on performance. This will give you approximately 20 to 100 HP on your motor.

Key Benefits
Dry system is great for beginners.
Some vehicle need no fuel upgrade or injector/ adjustments to the motor aka tuning.
You can have a Dry System and no one will know you have on the car.

I have had both.. Depends on the HP's you want...

 

[Foxman]

i have heard nightmares on nitrous spraying through the MAF...

 

[wickedstangs]

not if you do it right... and you know nitrous...

 

[orange395w]

I have also heard that the proper way to set up a dry system is through the maf for the exact reasons that Emilio has explained. Especially useful for people who do this without a custom tune.

 

[Foxman]

I can see it when running a 20 - 100 HP shot but not 150 or higher like sic fiddy was asking about... I guess when your doing nothing higher then a 100 shot you dont have to worry about the injectors... Oh and the kit Sic fiddy was also asking about was the zex that hooks in to the stock FPR and it increases the fuel pressure it self...

 

[Foxman]

oh also all the bad things i heard about he dry kit through the maf was on newer OBD 2 cars that have heated MAF's

 

[wickedstangs]

I can see it when running a 20 - 100 HP shot but not 150 or higher like sic fiddy was asking about... I guess when your doing nothing higher then a 100 shot you dont have to worry about the injectors... Oh and the kit Sic fiddy was also asking about was the zex that hooks in to the stock FPR and it increases the fuel pressure it self...

Foxman I had my dry set up higher than 150 :rock:

 

[yosemiddysam]

Gee whiz and I am skeered about running a 75 shot on mine.........

 

[Foxman]

150 dry shot through the MAF is just plan stupid... especial on stock injectors and fuel pump...

thats a lean A/F waiting to happen!

 

[SIC FIDDY]

Well sounds like a wet kit is the way to go for me. 150+ is the direction im looking into going. I will have to get a proper tune done and then see how long this forged bottom end will last!!!!!

 

[wickedstangs]

150 dry shot through the MAF is just plan stupid... especial on stock injectors and fuel pump...

thats a lean A/F waiting to happen!

Wow Foxman do you know what a centrifugal superchargers does ("blow-through" setup)? So then that is stupid too... Now if you are worried about A/F reading there is a formula and us old school guys we to use it alot..

Now the vehicle I am discussing was a stock 94 GT with 19lb injector dynoing 325 rwhp. Right around 300 crank hp is the max for 19#ers. at 350 to 375, 24's will be perfect...

 

[Foxman]

nitrous through the maf is a lot different then forced AIR... and yea 325 wheel horse power on a 94 Gt... is a 75-100 shot not a 150... run what you want man.... but 150 shot with 24lb injectors is not a safe dry nitrous setup. put it this way, if you have a blower running 8/9 lbs of boost... would you still be running stock 24lb injectors??????

 

[wickedstangs]

how is it different? Your not spraying directly onto the MAF... please explain yourself.. your scaring me...

 

[Foxman]

its a gas not air, its a lazy way of getting out of buying a tune... there is nothing safe about it, i'm trying to safe this man from installing a dry kit the wrong way and your telling him the wrong way to do it, Spray through the MAF is the half ass way...

would you run 24 lb injectors with 8-9 lbs of boost?

 

[orange395w]

:eat:

 

[wickedstangs]

its a gas not air,

that is why I am done helping.. What do you think air is?