Sorry for the long post but I will try to make as short and sweet as possible. I am trying to figure out how to lower the temp of the intake air. I am going to buy a digital thermometer and drive around town, moving it to different places so I can find the coldest place for the filter. I know the temp will rise as it gets closer to the motor but I have a plan. I have seen a lot of kits for cO2 injection for diesels to cool there fuel and intakes. I want to fab a cold air intake that I can plumb the cO2 thru it. I was thinking of taking 3" pipe for the actual intake and laying it inside 3.5" or 4" pipe. The 3" would be directly in the middle of the outside pipe so the distance between them is equal for the full length of the intake. I then want to weld in some bungs so I can put the fitting for cO2. As the cO2 comes in it will cool the inside pipe and the air traveling thru it. At the opposite end of where the cO2 is plumbed I want something similar to a blow off valve to realease the pressure. I will have it aimed directly at the top of the plenum to cool it some what. I know this sound comlicated and expensive, but I can do it for about 80 dollars for everything. This would be only for race day. I would like some input on this. If anyone knows of anyone else trying something similar a link would be greatly appreciated.

 

I doubt you'd be able to make enough difference in temperature to gain enough power to offset the extra weight.

 

this sounds a little bogus, spend the $80 bux on new wheelberings, or new plug wires, or seatcovers. all of witch would probably give you better gains. (seatcovers... )

 

would work better with a modified intercooler, pipe in a pipe will not transfer enough heat

 

I thought about that to. I am pretty sure it will not be worth the gain but it is different and I thought I would try it. Also, has anyone relocated the manifold air temp sensor from under the plenum to your ducting in front of the MAF. TPIS sells an extension for the wires and I dont know if this gain is worth anything either. I can due the wires myself.

 

Relocation of the mat helps, but on a stocker you can't really tell. Believe it or not, it helps more with mileage/power at running speed on the road in my car.

The only gain from CO2 that I have seen is the same as a nitrous fogger used on the intercooler. It seems to work almost as well. You will get a gain from cooling the intake pipe. I used to lay a bag of ice on the intake before a run. It was good for a slight "edge" but nothing earth shattering. Might cost you more in bottle refills than the gains are worth.

Just my opinion, if it works out post it! I'll do it next!

 

This is all just an idea in my head. I have most of the things I need to do tjis so it would not be very expensive. Do you think the digi thermometer would work for finding the coolest place for a cold air intake.

 

I would think that you would need some type of gauge to read temps while you're going down the road. A fair amount of air runs all over the place under hood while you drive. I guess you would need to do some experimenting with the gauge placement until you found the coolest place.

 

Cheating a sensor isn't the answer...otherwise just add resistors to the input to fool the ECM.

Unless you're actually adding cold dense air, you're not making power.

 

I am with 8mike9. Cheating sensors does not benifit the motor.