ok, i think this is the right forum. it may belong in the no2 forum. this is one of my crazy thoughts. i'm going to preface is by stating: i realize that nitrous is a form of forced induction because it's adding oxygen to the intake charge by force. and please correct me if i'm wrong in any assumptions i may have made.

what if you could add nitrous through the turbo, whereas you would be compressing compressed air? i realize that this would be very costly and probably impossible to do or achieve in a a way that is consistent with my theory. but is it theoretically possible? i'm assuming that i'm correct in thinking that a turbo compresses the air in the intake charge.

 

Basically are you asking , can you use N20 and TURBO.

Yes you can if you build the engine to handle that.

You can also use small shots sprayed into the intake charge to cool it.

 

i understand that, but that's not what i'm asking. if i'm not mistaken, the nitrous is usually sprayed AFTER the tbody, so it wouldn't have any knowledge of the turbo. i'm asking if you could add an excessive amount of nitrous BEFORE the turbo to (theoretically) compress the nitrous before it hits the tbody?

[ December 07, 2002, 09:39 PM: Message edited by: turbulence ]

 

I have no clue, I would think no

It would probally slow down the compressor and cause collection of n20 in the intake pipe cause it slows down its movement to the engine and can then collect as droplets.

n20 is all ready in a compressed state inside the n20 tank. then just psray out as much as you need.

 

To answer your question. No, not quite the way you think.

Nitrous systems have bottle pressures up around 1000 psi when full. I'm sorry, but you are NOT going to get 1000PSI out of ANY turbo. So, no, you cannot "compressed" already compressed air (or nitrous)

You can add nitrous in at ANY POINT in the intake air stream after the MAF (if MAF based). However, it makes more sense to add the nitrous closes to the intake ports (read below).

YOU COULD, inject the nitrous BEFORE the TB, however, you would run the risk of having nitrous trapped between the nozzle and the TB butterfly. You shut the throttle, the nitrous system stops adding additional fuel to compensate for the nitrous, but there's still nitrous in the intake system, and then you run lean and go BOOM! This effect would get worse the farther the nitrous injection point was from the intake port. In small nitrous shots (75 or under) this is not likely to happpen, but in larger (100 or more) wet shots, it MUST be sprayed into the intake manifold, unles you want problems.

You can cheat the nitrous nozzle up as high as possible within the intake runners of the IM, so that the nitrous can cool down the intake air charge, and mix better with the intake air.