Compound turbo setup re-design

[chevota84]

Would an axial flow compressor reach the p/R's that we're looking for?

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[chevota84]

Never mind, it looks like ge has a 5 stage variable that'll do 23:1. Standard ratios are around 4:1. I still think you'd have an issue spinning up the whole compressor section with limited energy from the turbine section.

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[nwpadmax]

Never mind, it looks like ge has a 5 stage variable that'll do 23:1.

and is as big as......a gas turbine...... LOL

 

[chevota84]

and is as big as......a gas turbine...... LOL

Oh yeah, its huge. I didn't think they'd get that much compression in between stages.

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[nwpadmax]

Oh yeah, its huge. I didn't think they'd get that much compression in between stages.

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It would look badass on your front bumper though.

 

[chevota84]

It would look badass on your front bumper though.

And out the end of the bed

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[Hurley]

so... skip the conventional drivetrain?

 

[TheBigNasty]

I think it's good that you're showing ingenuity, but it would be bound to be a large, heavy, expensive piece of equipment. Also, turbine engines are subject to a great deal of delayed response. Having a positive displacement in the middle vs burn cans may help it to a degree, but the additional weight and bearing surfaces in the rotating assembly would negate the primary reason people use compound turbos, response time.

I'm not saying it's impossible, but you would get into diminishing returns real quick.