Idea to eliminate turbo lag..., ...or am I crazy. Options

[CheesyLobster]

So I just though of this idea that could eliminate turbo lag completely, and I was wondering if it’s ever been tried or anything.

My idea is that the turbo and piping for the turbo would be normal, except just before the throttle body, there could be a split pipe. Attached to this pipe would be sort of a short ram air intake, except there would be a high quality one-way valve in between the filter and throttle body. This way, before the turbo has spooled, the engine would get air from the short ram intake, and be like an N/A car. But once the turbo is going, the pressure in the intake pipes would over power the short ram, and close the one-way valve, thus utilizing the turbo piping setup.

Kind of confusing, hopefully this crappy pic I drew in paint can help. I drew in with a 7afe.

So what do ya guys think? Seems like it could work if the 1 way valve is good enough.

[Hanyo]

Now i had a major question for anyone affiliated with what twin charging really is... If a supercharger compresses air... wouldnt it also further compress already compressed air? Is it necceasary to stop the supercharger when the turbo spools up and begins making boost? I dont understand why you cant just leave the supercharger spinning so that when u accelerate you get instant boost from  the super charger and then as the turbocharger spools up and makes boost then u just get more boost as the super charger further compresses the boost made by the turbo.. Theoretically wouldnt it be a 2 stage compression for the engine? I know Aircraft turbojet engines uses different stage compressors to further compress the air for combustion but why not use it in a car instead of going through the complex task of stopping the supercharger after spool up from the turbo.
[right][snapback]229437[/snapback][/right]

you got the concept right.. the supercharger creates boost when you first start off. Then when the turbo creates boost, the supercharger turns off. You ask, "why not leave the supercharger on?" well the reason is.. a supercharger will take horsepower away from the engine when it creates boost. The turbo itself is good enough to deliver the boost you need, so there is no point in pressuring the pressurized air. (like how you wanted to pressurized the air from the turbo with the supercharger) There are large turbos out there that can create 20+ psi of boost and that is more then the average joe would need.