Dry Nitrous Injected Pre-MAF?

Swarzkopf

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I tried searching with no luck. It looks like everyone is spraying wet. Here's my question:

Does anyone here spray dry nitrous pre-MAF on this platform (3V S197)? If so, does the factory MAF do a decent job of recognizing the increased density/velocity of the incoming nitrous shot and adding fuel accordingly?
Since I have a Compucar universal kit sitting in my garage, I've been toying with the idea of hooking it up to my '05 Mustang GT and injecting dry pre-MAF.

I have a blown 3800 GM that I hit with a small shot pre-MAF at the track with very, very good results - the GM MAF sees the incoming shot and the PCM increases fuel delivery via the injectors. I've been wondering if I could do the same with my Ford.

I would assume the amount of room I'd have on the stock injectors would be very small and I'd need to up the injectors for any decent shot size.

Anyone done this before? And not to be a dick- but please don't tell me to get a wet kit or start giving me nitrous basics- I have about a decade of nitrous experience on other platforms already- I just want to specifically know about dry shots injected pre-MAF on S197s. :)
 

confuzed

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nope, it wont work. i tried but we still had to add fuel and remove timing. even after some time on the dyno it still acted "strange". on a 100shot i ran 11.80@118 so the power was there, it was safe, but just didnt work the first half of the track. i went to a wet kit and dropped to 11.30s @120. im sure there has to be SOME way you could make a 50-75 shot work ok, but it wont respond like the gm maf/ computer does. i wish it would. i loved my dry setup on my ls1 cars. no swapping tunes or anything.
now if you left the STOCK tune in and a 50 shot that prolly would work, but it kinda defeats the purpose. MY stock pump and injectors were pretty much maxed at 100shot dry. with the wet kit my pump stays around 90% on nitrous so its still safe. thats a 125shot also.
 
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Swarzkopf

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That's dissapointing...but thank you, excellent information and very helpful.

Looks like my 3V won't be seeing any nitrous.
 

confuzed

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That's dissapointing...but thank you, excellent information and very helpful.

Looks like my 3V won't be seeing any nitrous.

is it because you dont want to be playing with tunes? that does suck, but its ez to convert youre dry to wet. i use dyno tune solinoids and fogger nozzle. its so cheap and there stuff works. just my opinion
 

Swarzkopf

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Nah, just no interest in buying a kit or solenoids....figured since I already have a Compucar kit sitting around, if I could make it work pre-MAF great...if not, oh well.

Thanks again for the awesome info though.
 

Jaylee

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I know a guy that did on his 03 GT. He also added 30lb injectors for additional fuel. His name is Joe Gullett, Muscle mustangs and fast ford did an article on it years ago. You could probably google it and come up with something.
 

06gtmustang

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I know a guy that did on his 03 GT. He also added 30lb injectors for additional fuel. His name is Joe Gullett, Muscle mustangs and fast ford did an article on it years ago. You could probably google it and come up with something.

But the thing with that is that he is trying to make it work on a 05 which are more sensitive with stuff in regards to intake and maf mods. I had the same kit on my 2002 gt but it sucked because i was trying to push the spray button and shift at the same time so i would just buy a kit that is made year and model specific. I was spraying an 80 shot and i think i would of had more luck if that car was an auto.
 
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