Re:odd idea
 

boost is compounded if you run it through to turbochargers.

Re:odd idea
 

ive seen the charge pipe from one of the turbos go to the inlet of the next one in a tt staged turbo configuration, but why would you want to spin the turbine with the other turbos charge air?

Re:odd idea
 

so someones accualy done this before?

Re:odd idea
 

Woah, this statement is 100% wrong for soo many reasons. I don't feel like explaining the laws of thermodynamics but heat is a VERY disorganized form of work. Its the mass flow rate of the gas that spins the turbine.


Just think about it, what would spin a fan easier; putting a heater on it or spraying a garden hose at it?



The condensing of air is an exothermic reaction. Heat is produced when air becomes compressed

Re:odd idea
 

thats what I was thinking. I figured compressed air would spin the exaust side more effeciently than hot air would it would keep the turbo cooler running smoother it seems like it might have some plumbing problems. but once again it was just an idea. i wanted to see what people thought of it and if any one has ever tryed it

Re:odd idea
 

maybe ill just try it sooner or later and see how it works

Re:odd idea
 

Meh, high performance diesels have a much more interesting setup :)

Two turbos, one pounds a mild boost at the compressor inlet of the other one (15psi or so) and then that compressor brings things up. Boost levels possible with this setup are over 100psi, and that's fine since diesels have no detonation.

Re:odd idea
 

sweet

Re:odd idea
 

Allright. Here's why it wouldn't be worth your trouble:

Generally, the pressure inside the exhaust manifold on a turbocharged car is 2 to 3 times the boost pressure. That means that at 7 PSI of boost, you're running between 14 and 21 PSI of exhaust manifold pressure.

If you relate that to one turbo's boost pressure spooling the other turbo, you'd need between 14 and 21 PSI of boost from the first turbocharger to spool the second turbo to 7 PSI, and your exhaust manifold pressure would be something like 40 or 50 PSI.

Needless to say, your valves would probably be fucked, and at the end of the day, you're taking the long way to home sweet home, 7 PSI of boost.

Re:odd idea
 

I think that this would work, the air coming from the compressor housing has to be moving quicker than that coming straight off the exhaust manifold. Run one turbo in a stock like way, then dump the compressor straight to another exhaust housing, then run normal setup there after.

You could use this setup in a few ways, u could use a small t25 or something to spool a larger turbo such as a sc61 on a dseries, seeing as house (theoretically) if the t25 spools at 2500 rpms, the sc61 should spool shortly after, making spool times quicker than if you were just running a straight sc61 off the manifold of a dseries.


im done with the mindless rambling.