Newbie ForumBeginner/newbie/general DSM questions. first mods, how to run 10's when you haven't run 12's yet, any tech question that doesn't fit in another tech forum. New Members must limit their tech posts to this forum and sub-forums.
There is alot more to it than "hooking them up." There is alot of custom fab work that will need to be done because this is very rare on DSM's. Another problem is space in our little engine bays.
Compound turbo charging can definitely be beneficial.. ive seen it on a local Supra with amazing results..
If you use the search button... you'll see someone has done compound for DSMs
No offense to the OP but if he's asking about twin turboing a dsm, I dont think he's quite ready for the complexity and fabrication thats involved in a compound setup.
In all seriousness, leave the twin turboing to the cars that are twined from the factory, with todays turbo technology (extended tip compressor wheels for example) its much easier (on the wallet and brain) to stick with a single turbo. There are plenty of turbos out there that can make tremendous power with minimal lag.
The owner of the shop GSS in Saskatoon, SK is running compound turbos. I have no pics but he had the turbos mounted and working in his '95 Talon AWD. He is now taking the motor out and building a 6 bolt with cosworth racing internals and looking to make 6-700 WHP and running around 11k rpm! I don't know what his "smaller" turbo will be but the second will be a GT45R.
Here is a link to Paul Volk's thread about his compound set up. It'll give you an idea of the fab work and time that must be invested. My compound turbo set-up
2 turbo's of the same size wouldnt really work. If you are into the fabrications and time invested, have at it. Good luck with your choice though. Good advise though to sell both the small turbos and get a bigger one.
Been done a few times. If you have the money to burn, go for it. Obviously there are more feasabile solutions out there, but some people want uniqueness.
There is twin turbo where the turbos are all fed all the time like in a 3kgtvr-4 or 300zx, then there is sequential where one turbo is fed exhaust until it is spooled, then the second turbo is fed exhaust, then there is compound like the one linked and lots of diesel trucks where the exhaust and wastegate of a smaller turbo feeds a bigger turbo.
Why would I even consider this? I have nothing but time, sch40 weld els, and a basket of 14b's. I will try to set it up so that I can easily cut off the flange and put on a holset or big BW turbo. If it can't be setup that way, I won't even bother and just plan on a big single. Two 14b turbos can be in really high efficiency levels at flow and pressure levels near that of a gt35r. A 35r costs much more than plate metal and welding wire.
I've already made a few manifolds for singles, so this will be fun to play with and fits into my budget of $0. If you've never made a manifold, or fabricated anything, it's too much work for not any gain.
