1. Install turbocharger (look, ma! No belts!).
2. Install electronic boost controller.
3. Turn boost controller down to zilch when you don't want it.

Craig

 

hmm...what if ya kept the pulley one size, but had it connected to the blower via like a CVT type thing? Or hell, even a mini "transmission" that would allow selectable gear ratios (and therefore selectable effective pulley sizes) That way belt tension stays constant, and you could still vary the boost. But now it's just gettin ridiculously complicated

 

Mercedes already has an electric clutch type setup implemented on at least one of their engines. I believe it comes on their new AMG E-class.

 

Correct. M-B already has it with electo-magnetic engagement.

 

Install and R/C servo to operate the boost controller or even adapt an NOS remote bottle opener to it, then control it from inside the car

I still remember the GTO from My Science Project..

"Hey Mikey, Hit the blower!!"

 

You do know that's exactly what an electronic boost controller is, right?

 

So what exactly would be happening there?
The engine gases would be turning the turbo and it would all be going out the waste gate when turned down?
Or would it somehow bypass the turbo?

Me Turbo DumDum.

 

Aparently the next Skyline GTR will have techology similar to the "switched" supercharger idea, but basically an automatic boost controller like what Craig mentioned.

I suppose it may be there to help with emissions.

 

Basically you'd have to have a really low-strength wastegate that would start diverting gas away from the turbo at an obscenely low psi. The boost controller (restrictor on the wastegate line) would allow it all to escape when fully open.

As the restrictor makes less space for wastegate gases, more would pass through the turbo, thus more boost.

But in essence, yeah, you're right.

Craig

 

The ZR1 Power key disables the secondary set of 8 injectors from coming on.
LT5 has 16 injectors and 16 runners. That is my dream motor.

 

What about a wastegate on the pressue side od the blower? Granted you would still have the frictional loss imposed on the engine by the blow, but it seems that it would work

P

 

It uses 16 Rochester 22# injectors. 43.5 psi fuel pressure.

 

Yeah, LT5 is the ultimate cool factor. Someone needs to twin turbo one of those cars.

 

If they had aftermarket superchargers like that I'd be down for it. Thats the reason I've really been looking at Turbo recently. I don't know what the thread starters mission was, but for me the car would be a daily driver so in order maintain decent gas mileage when using a turbo it should be pretty easy to keep it out of boost range with normal driving but I can hit the gas and the power is there and also the turbo won't be using any pulley power. But I'd probably rather have a supercharger if gas mileage didn't matter much for that instant kick and also super's are known to last much longer then turbos.

 

It's all in the setup. Superchargers occasionally need to be rebuilt just like turbochargers.