Purging nitrous at A2A intercooler?

[07stangcs]

has this ever been tested or do people do it? For cooling purposes obviously. Would it work better than water jets? Whats the best option? A2W with ice tank?

 

[CPRsm]

A/A's work more as a heat sink when under boost. Nitrous on the cooler works, but not nearly worth the gains. Especially at the cost of nitrous. A/W is definitely a better idea. W ice we can start in the high 30's/low 40's.

 

[NUTCASE]

there is also CO2 for that option, but I would be worried that if I sprayed to much CO2 at the intercooler at low speed the motor would suck it up and bog. needs to be tested though.

also, I do know in some situations if you spray nitrous at the intercooler it is possible for a high power motor to suck up some of the nitrous. enough to throw you off if you run a tune that is right on the edge. This has been shown on dyno tests.

IMO the best way to do nitrous with boost is to inject it into the motor. There you will get all of your cooling properties AND the oxidizing effect. Plus it will be more predictable to tune as in we don't have to talk about what if your motor is sucking up nitrous we did not tune for, we just know its in there.


since many people put the tank for a/w in the back of the car I have though about the possibility of having a heat exchanger in the back of the car and blow CO2 over that. but would it be to the same effect as ice water? where all I have to do is buy bags of ice? and have less parts and systems to worry about?


in short, great ideas come from it, but IMO to many what ifs and extra parts going on.

 

[AutoXRacer]

Nitrous oxide if used to cool the intake air would have to be injected into the motor.
You can set it up where its just a slight amount, enough to cool the air and no worries about leaning out the AFRs.

But a more economical route is methanol injection. Its cheaper and does the same thing with better results.

CO2 is only used to spray on a heat exchanger...its temporary and only used in extreme cases where a little more cooling is needed. Basically you are freezing the heat exchanger to just do one pass.

The best option is to have an efficient (high-quality) heat exchanger, big enough water pump to circulate the coolant. The remote trunk tanks and such are only good for race cars...for a street car, once the coolant is heat soaked, you are in the same boat as everyone else. But it will take a lot longer to heat soak all that coolant with a trunk mounted system.

With air-to-air systems, make sure to properly size the intercooler to avoid pressure drops. Just because its bigger doesn't mean its better.

I say keep it simple and avoid the complex systems with 20-30 feet of hoses that could lead to leaks, etc.

The first question you need to ask is what are your current intake air temperatures?