n20 b4 the intercooler

[TargeT]

I'm thinking of spraying a 30-50 "dry" shot before my intercooler to help aid with cooling intake air

I've got a GM MAFT set up on the upper IC so the air will still be monitored, there shouldn't be any issues with doing something like that should there? extra fuel will be added because of the extra gasses passing the MAFT, or do i have it backwards, never sprayed before.

 

[TargeT]

if its just a 50 shot i shouldn't need to do any additional fuel should i? if so how much additonal fuel, i'd like to manipulate it via DSMlink (longer injector pulse instead of higher fuel pressure)

 

[rys]

The ECU and associated sensors can never meter nitrous oxide properly, because it is not normal atmospheric air (26% Oxygen, I believe). It will see the added "air", and drop in temperature, however, the car will still run lean.

"How much fuel?", you ask? It depends on a lot of things. I'd recommend spraying fuel as well and having that tuned on a wideband. (Unless you can have seperate maps for onspray/offspray, I'm not familiar with DSMLink).

-Brian

 

[TargeT]

The ECU and associated sensors can never meter nitrous oxide properly, because it is not normal atmospheric air (26% Oxygen, I believe). It will see the added "air", and drop in temperature, however, the car will still run lean.

"How much fuel?", you ask? It depends on a lot of things. I'd recommend spraying fuel as well and having that tuned on a wideband. (Unless you can have seperate maps for onspray/offspray, I'm not familiar with DSMLink).

-Brian

DSMlink gives amazing control,

to balance the n20 i'll be also spraying Ethenol, so i figure that will count as the " wet" part...

my alch injection will happen about 4 inches from the throttlebody while i'll spray the n20 right before the intercooler,, this will give me three extra "air cooling" methods.. n20 b4 the intercooler, air to air transfer @ the intercooler @ alch evaporation at the intake manifold.

 

[rys]

The main issue is that if it is a street car, can you keep all of consumables topped off at all times.

If the tune is dependant on having Nitrous and methanol available, what happens when you run out of one? Will you blow up, or just loose power?

-Brian

 

[TargeT]

The main issue is that if it is a street car, can you keep all of consumables topped off at all times.

If the tune is dependant on having Nitrous and methanol available, what happens when you run out of one? Will you blow up, or just loose power?

-Brian

well, it really depends on what i run out of first

hehe

the n20 will have its own tune set up for it, i'll rarely use it im sure.. it seems like a 50 shot wouldnt be that much,..

for daily driving i use my alch injection, but the n20 would be track only, maybe some "street" use but not much.

 

[jtmcinder]

I'm thinking of spraying a 30-50 "dry" shot before my intercooler to help aid with cooling intake air

Before the intercooler makes no sense. The amount of heat dumped via the intercooler depends on the difference between the charge air temp and the intercooler temp. If you have already cooled the air before it gets to the intercooler, the intercooler will remove less heat. Let the intercooler do its job and then do any additional cooling after.

- Jtoby

 

[rys]

the n20 will have its own tune set up for it, i'll rarely use it im sure.. it seems like a 50 shot wouldnt be that much

When setup right, and especially with the cooling effect for a turbo guy like you, you will definitely feel the 50 shot.

Also, Jtoby is right, I didn't think of that.

-Brian

 

[TargeT]

Before the intercooler makes no sense. The amount of heat dumped via the intercooler depends on the difference between the charge air temp and the intercooler temp. If you have already cooled the air before it gets to the intercooler, the intercooler will remove less heat. Let the intercooler do its job and then do any additional cooling after.

- Jtoby

its pretty easy to heat soak even a large FMIC at the track, the air entering my FMIC is around 180 degrees when the turbo is pushed hard, the intercooler might drop this down to 140 degrees, maybe a bit more, I would guess a 50 shot would drop the air temp down quite a bit more & shooting it on the turbo side of my FMIC is just an idea im going to try, i can always close the bung of if it doesnt work & change my placement..

it seems like the further away a dry shot is placed the more chance of an even temp drop, & I could even save the spray untill i've reached heat soak, use it to cool the FMIC etc..

 

[GSGoinFast]

its pretty easy to heat soak even a large FMIC at the track, the air entering my FMIC is around 180 degrees when the turbo is pushed hard, the intercooler might drop this down to 140 degrees, maybe a bit more, I would guess a 50 shot would drop the air temp down quite a bit more & shooting it on the turbo side of my FMIC is just an idea im going to try, i can always close the bung of if it doesnt work & change my placement..

it seems like the further away a dry shot is placed the more chance of an even temp drop, & I could even save the spray untill i've reached heat soak, use it to cool the FMIC etc..

think about it, you will be defeating the purpose of that intercooler. the nitrous is extremely cold when it comes out, and it will lower the intake temp lower then the outside air temp. now it goes through the intercooler, and the intercooler heats it up to the outside air temp. thus defeating the purpose. let the intercooler cool it a little, spray the nitrous after so it will lower the temperature even more then it would have before.

 

[TargeT]

Yah, i guess if i do spray n20 it will be because my current setup doesn't get me down the track fast enough.. so i might as well do a 100 wet near the throttle body

oh well, i got my IC bunged for nothing

maybe i should spray alch down there, instead of at the throttle body...

thanks for straiting me out haha

 

[ShaggieRL]

noob.... it's going to blow up hahaha

 

[DSMJim]

I'm thinking of spraying a 30-50 "dry" shot before my intercooler to help aid with cooling intake air

I've got a GM MAFT set up on the upper IC so the air will still be monitored, there shouldn't be any issues with doing something like that should there? extra fuel will be added because of the extra gasses passing the MAFT, or do i have it backwards, never sprayed before.

That is not how a dry kit works, have you researched nitrous at all before making this post?

Dry kits add fuel by increasing fuel pressure at the fuel pressure regulator, but they still add fuel. Dry does NOT mean only nitrous, FUEL IS STILL ADDED. You maft is not going to even know nitrous is going through it, you will however when it malfunctions and you have to not only replace melted pistons but your broken maft cause you were stupid enough to run nitrous though a mas air flow sensor. Nitrous is not air and is not metered like it, oxygen in nitrous is released only during the combustion process. If you even attempted the stupid idea your talking about your motor woudl blow up 3 seconds after you spray it.

If thats what you wanna do just buy a wet kit, and not hook up the fuel part of it and put the nossle in your intake and spray a 50 shot with no fuel. Thats exactly what your saying. Why not just run 10psi of boost extra on a huge turbo on 450cc injectors then if you don't need extra fuel, sounds like a good idea.

Honestly, I'm just gonna start getting threads deleted is this kind of stuff continues. Please search.

http://www.dsmtuners.com/forums/showthread.php?t=140163&highlight=dry
http://www.dsmtuners.com/forums/showthread.php?t=160421&highlight=dry
http://www.dsmtuners.com/forums/showthread.php?t=164540&highlight=dry
http://www.dsmtuners.com/forums/showthread.php?t=138012&highlight=dry

Read through these 4 threads they will provide you with some much needed answers.

 

[ShaggieRL]

hehe i know the guy there is a couple of dsm guys that spray up here i'll be joining the bottle feed ranks as well but i only got 550's and 190 in my awd think i'm going to start with 75 shot on a wet setup i wanna see how far i can get with a 14b plus i'm more of a junk yard mod'er basiaclly use what i can get my hands on or make..

 

[TargeT]

yep, pretty stupid idea, i thought maybe if it was a small enough shot i could get away with out raising the fuel pressure anymore, plus i'll be dumping alch in the mix which has always caused me to run richer than i want, but it would be difficult to imposible to get the two ballanced (n20 and alch)

scrap that idea, feel free to delete the thread.