Those of us with stock turbos can always use more air. Some use nitrous, but wouldn't a 5 gal tank of compressed air (say 125 psi) with a connection to the air inlet help somewhat? I know the gains would be minor, but it would help, wouldn't it? Has it ever been tried? Am I waaaay out in left field about this? :confused:

Ok, I've been thinking about it. If the air could be fed at a fast enough rate to make a difference, it would be consumed very quickly. The tank size just isn't big enough for the Duramax appetite for air.

I've seen some posts regarding using superchargers to feed the turbo, thereby reducing the load on the turbo. Similar principle, I guess, but as you said, the 5 gallons of air wouldn't last long.

Enough for a 1/8 or a 1/4?

depends at what CFM it is fed at....................how large of an air line and what pressure will determine, keep in mind you would also need a filter on the line to prevent all the moisture and rust from the tank going directly into the motor.

keep the moisture for water cooling properties,could work

A scuba tank, 80 cubic feet comonly at 3000 psi and the bottle is not very big. Could easily regulate it down. Could also run what scuba divers refer to as NitrOx witch is compressed air enriched with up to 35% oxygen(again IIRC)

N2O would yield more power though and be easier to do and I cant see it costing much if any more.

Compressed air would possibly be a work around to the no "drugs" rule.

Duno how it would affect the turbo though???

You can get over 35% nitrox, but not every place can do it.

At a pull or event where they tech your truck they won't believe you have "air" in the tank and not nitrous. For dragracing it would be fine but the weight of an air tank of sufficient size might be a problem.

Tell em to wrap thier lips around the bottle and take a hit if they dont believe ya):h

If and I mean a big if you could get something like that to work I would be that the rules would change very quickly were it wasnt legal.

Ok, just thinking again here, how about plumbing in a compressed air line from a tank like a 125 psi 5-10 gal to the turbine side aimed at the wheel. The shot of air could help eliminate turbo lag. This would be a good thing for a very large aftermarket turbo.

With the stock turbo we are hitting somewhere's around 30 psi. 30psi running through 2.5" intercooler piping is a heck of a lot of cfm's. I believe in order to achieve though's kind of cfm's, you would drain even a massive tank in seconds.