Is there even room for all that madness? Unless you rear mount one, I'm but sure how you'll fit everything into an already cramped engine bay

 

Sounds awesome! Would love to see it in an S2000!

 

a sequential is in series but with bypass valves which would add even more to the system. I would like to do the compound setup which would put the 518 as the high pressure and a larger turbo maybe a 35r with a 1.01 or similar for the lower pressure but I first have to size it right, that is why I asked for help in sizing it. also I think that if you use a 60mm wastegate for the smaller turbo and 44 for larger, than that should be good.

 

This is a cool set up, twin 16T turbos on a Volvo 4 cylinder. Made 600+hp with great spool.

 

That twin turbo set up on that S looks incredible!

 

Ah I see. The small turbo is driven off the engine which then feeds into a larger turbo. I still don't think this would be beneficial at all. Not of a 4 cylinder anyway and with the s2k's limited space. A properly sized single will spool just fine and make all the power you need.

 

Need? Or want?

So you can get a 600-700whp turbo to start spooling at 2500rpm? I'd love to see that power curve out of one turbo.

 

compound turbo's are nice I gained 120 hp just switching from the single to the compound setup it also helped with compressor surge and egt's you would have to butcher the sh*t out of the battery area just sayin it was hard to fit two in a truck bay though there are triple turbo setups now it banana's 100+ psi I had to replace my head gasket and install h11 head studs that are torqued to 150 lbs and I only run 60 psi

 

Need? Or want?

So you can get a 600-700whp turbo to start spooling at 2500rpm? I'd love to see that power curve out of one turbo.
[/quote]Thats one way to look at it. I just don't think the benefits will out weigh the amount of work needed to fit this set up in a S. But for what its worth, this may have beneficial information to what you're looking for OP.

http://forums.evolutionm.net/evom-ne...4r-turbos.html

 

a 30r on this motor has been proven time and time again to make incredible power (600whp) and have amazing spool characteristics.

Just b/c you "can" do something, doesn't mean you always should. Anytime you add more complexity to a system, you add more points of failure, K.I.S.S. is a great motto to live by.