AUTOSHOP in wichita falls.

If you are thinking 6.0L just get a good one with low miles, do a cam swap install a turbo kit, run around 10-15psi and hold on. The tranny will need to be replaced.
Rick

 

If you're looking to have one built I recomend LME.

 

Ah yes, back to the old compress the air twice game.

R

 

LOL, same thought here. I always thought that if you bought the right turbo or supercharger you wouldn't need both.

 

Ya, ya, you guys don't like the idea, but I still do . If you think about it, you probable already have a setup just like this in your shop RIGHT NOW. It's your shop air compressor . Unless you have some cheap single stage. Most shop compressor are 2 stage, a big piston for the volume that pumps into a smaller piston for pressure. Same concept.

That's really not much different then a blower for instant low end boost pressure being feed by a turbo for higher flow and pressure for the top end.

Some day I will do this setup I just need more mod money$$$,

 

The problem is the little piston idea from your point. The little piston in your point is built for high pressure. Most want to do this with a Radix which is basicly an Eaton roots type blower. That blower is by design most efficient at low boost and is most efficient at 4-6psi. As the number goes up, the efficiency goes down. Efficiency is kinda the idea here anyway right? A screw design like the Lysholm/Whipple/Kenne Bell would work better at the high pressure due to it's screw design, but then they are rare and not really as well desired due to their intercooler design. In this case the turbo is really what's suited best for high boost/pressure levels. That makes the theory backward. I'd happily set up a TVS2300 over an MP112 with a turbo pushing air into it. Purchased new the bigger blower would be cheaper than a turbo kit and an MP112.

 

The part you are missing there is the ratio, its sill a matter of pressure/ratio. As the air coming into the blower gets denser the pressure ratio may not be changing much at all. After a certain point on a roots type blower the second power adder can actually help the supercharger put power back into the crank.

I still stick to the one power adder though lol.

 

I see your point, but I don't think the boost level would have to be very high before you'd be better off having the turbo alone. At the point where the turbo was well into it's efficiency range you'd be moving enough air the point where the blower would be a restriction. At some point you may end up with more pressure on the inlet side of the blower than the outlet.

 

True dat homie!

 

Like compound turbos work for the diesel guys. You have a big turbo pushing into a small turbo. End result 200psi of boost!!!
One thing most miss is, the turbo going to be a restriction in the intake making the blower useless until after lag.
From what I've read, the blower compound presser. You may see 8 psi goin into the blower but you'll have lets say 16 psi ( I don't remember exact numbers) after the blower.
And it seams that the Hellion Hellraiser kits are run high boost levels without need for super high octane. Like 38 psi with 93 oct and meth!