Thread: Adding a 2nd MAF?

So... Sometimes I get crazy ideas.

What would it take to add a second MAF? I have been curious about twin charging a Grand Prix for the past 10 years and haven't tried it yet. I want to avoid hitting the wall at the blower, so I was thinking about having a custom lower intake manifold made with a port for the cold side of the turbo setup.

Something like this:

How are you going to stop the sc from compressing the turbo since the sc is instant boost?

I don't know of any software that would allow that and have anyway to control it.

Ideally it would be so much easier to just ditch the factory computer, run a MS3 system or similar and just delete the MAF altogether. Run a true speed density setup with a 2-3 bar MAP sensor and be way ahead of the game.

The SC would basically force the turbo's air into the motor more efficiently building more boost. The restriction in twin charging the traditional way is by the compressed turbo air hitting the supercharger rotors. With the turbo'd air going under the blower, it's bypassing the rotors.


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Originally Posted by Fivefingerdeathpunch

I don't know of any software that would allow that and have anyway to control it.

Ideally it would be so much easier to just ditch the factory computer, run a MS3 system or similar and just delete the MAF altogether. Run a true speed density setup with a 2-3 bar MAP sensor and be way ahead of the game.

That's not a bad option.


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Originally Posted by Explicit_Spade

The SC would basically force the turbo's air into the motor more efficiently building more boost. The restriction in twin charging the traditional way is by the compressed turbo air hitting the supercharger rotors. With the turbo'd air going under the blower, it's bypassing the rotors.


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If the SC is on top of the engine and the turbo is blowing into the lim that the sc is compressing, which will compress the turbo because it starts compressing itself since the sc is compressing compressing ( ) how are you going to stop the sc from blowing the psi out the turbo before it builds boost? And said turbo builds more psi than sc, how would that boost not go backwards and out the sc throttle body?

Originally Posted by ItHurtz

If the SC is on top of the engine and the turbo is blowing into the lim that the sc is compressing, which will compress the turbo because it starts compressing itself since the sc is compressing compressing ( ) how are you going to stop the sc from blowing the psi out the turbo before it builds boost? And said turbo builds more psi than sc, how would that boost not go backwards and out the sc throttle body?

Blow off valve, and boost bypass valve hopefully. During acceleration, I would think the air would be moving too fast to push backwards.


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You havent thought this through, it wont work.

Originally Posted by Explicit_Spade

So... Sometimes I get crazy ideas.

This. Sometimes crazy doesn't mean good lol.

I can't imagine it working, if it did someone would have done it by now.

Originally Posted by ItHurtz

You havent thought this through, it wont work.

Why not?


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Because 2 inlets with varying psi, one is going to become a outlet, the turbo nor sc are anti reverse and 100% one way sealed.

The engine is the outlet. If anything I blow the heads off the block.

Think of it this way. You've got a garden hose with a hole in the middle. You and someone else are blowing from each end of the hose. Where's the air going? It's going to back up (creating more boost), but it's going out the hole.

I could be wrong. I'm not an engineer.


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What if your a smoker and your friend has big lungs, your going to eat your friends breath

It will go out the path of least resistance, the manifold pressure is created because the engine already can't draw it in fast enough

Boost vs Boost vs Motor.

Some head porting may be necessary to make this work. Bigger intake and exhaust ports and valves would help reduce resistance.


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Your a idiot, move on it WONT work.

Originally Posted by ItHurtz

Your a idiot, move on it WONT work.

*You're

*WON'T

Would you like to place a wager kind sir?


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I wanna watch...from a safe distance.

eye for a eye or life for a life? I personally like the life game.

Now go build a plywood box and stick a dryvac blowing on top, then stick a leaf vac on the side and tell me what happens.