Forced Induction Idea

[ninja250r]

Anyone ever thought of the elimination of a turbo, a manifold and such and using a high volume air tank to force air into the motor for drag racing only?

I mean you use a air compressor for a boost leak test it pressurises the intake.
if you could have a tank big enough to hold 30 psi for 10 seconds leaking out wouldnt it be instant 30psi no lag?
the idea would be tune it with a turbo so it has a general idea of say (30) pounds of boost but have the air tank force it in instantly which would make it either blow or wake up instantly with no lag.

thought sounded awesome, think its a possible idea?

I mean all you dsm guys use 2 steps to make boost on the line but imagine being able to rev to any rpm and as soon as you open the tank its instantly the set psi you have regulated, then when out of air its back to n/a
spend 1500$ on a 42r or spend 350 on a campbell and hausfeild

 

[Calan]

For some reason, it seems that people just aren't grasping the concept of the AMOUNT of air vs. the PRESSURE of the air... even though it's been explained very well. 25psi of air flowing through a steel drinking straw would be literally nothing compared to 25psi of air flowing through a 2 ft. drain pipe (or even a 2.5" IC pipe for that matter). Think about it.

 

[Bud92gsx]

I challange anyone to blow 25psi through a drinking straw...And put it on youtube..I want to see that..

 

[fran_drivertsi]

OP should've attended his high school physics class

 

[romeen]

For some reason, it seems that people just aren't grasping the concept of the AMOUNT of air vs. the PRESSURE of the air... even though it's been explained very well. 25psi of air flowing through a steel drinking straw would be literally nothing compared to 25psi of air flowing through a 2 ft. drain pipe (or even a 2.5" IC pipe for that matter). Think about it.

I hope this wasn't directed at me Craig. My last post might have been misconstrued as an endorsement of this idea which it is not.

As others have already touched on, you need to remember that air pressure and air volume are two different things. 30 psi of air coming out of a shop blow gun is very different from 30 psi of air through a 3" diameter pipe.

 

[BradM]

Would be cool see this work but it would never be worth it

 

[knochgoon24]

I don't think anyone in this thread ever had plans on doing this. It's just one of those things that are amusing to think about. Some people are taking this WAY too seriously.

I hope by this point, everyone realizes that pressure doesn't equal flow.

 

[WES_393]

If you are going to think of stupid, over the top ideas. Why not have a laser cooled intercooler where the air goes through a bose einstein condensate.

Not a bad idea except a molecule sized hole would let all of your Bose-Einstein condensates escape all at once. And I sure don't want to go around patching molecule sized holes . Quantum physics is always getting in the way of making cars fast!

 

[cliffkemp]

It was said best when people understand that psi does not equal flow. TB are around 2-3 inches in diameter and to maintain 30 psi in a TB requires tremendous amounts of air, by volume.

Another problem that many have overlooked is that as rpms increase, so does the demand for volume...a turbo does this automatically as it is self-contained by the shaft 'knowing' how much air is passing through to maintain boost at a constant by bypassing 'wastegate' the air that is not needed to maintain a certain boost. With an external boost source, the amount of flow will drop if regulator is set to 30 psi as the regulator(s) do not know that engine demand has increased....all it 'knows' is 30psi.....
to put it another way....tuning would be just about impossible...

Another way to put it....turbos work off 'wasted energy' at a regulated pace...tanks cannot react to changing conditions...rpm fluctuations. Tanks do not know that there is a change in needed volume so...regulated at 30psi means nothing...at idle, it may help but, as rpms increase, that 30psi will go lower and lower based on cfm of the engine...even if tuning could be solved....regulator problem cannot be as the tanks are not linked to the engine like a turbo is....put another way, to make it work....you would have to be able to bleed off the air coming into the TB so that there is always 30 psi which means....regulators on the tanks would have to be set to a much higher psi so that there would not be a pressure drop....Lastly, if you get it to work....dropping the clutch at high rpms with instant boost would probably kill 'something'.

 

[ramsack]

The throttle body is not the restriction that creates positive boost pressure, it is the intake valves.