Im looking into compond setups andhave some good understanding of what is needed, but cant getthe turbo pIrng right. Looking to compond my greddy t618z with a larger one but cantget info on that particular turbo. If anyone has knowledge on compounding, iwould like to know what turbo would be paried with the 18g ( that is the greddy)

 

its really whatever you want to compound it with, there is no set pairing of turbos for compounding, I havnt see a compound set up on an s2k but it would be pretty awesome if someone pulled it off

 

In reality It is very important to pair the right turbos together or it wont work right. I just realized that the greddy kit is a t518z ( which I believe is a 18g) not a t618z, tha was an upgrade that greddy was working on , but I dont think they ever finalized anything. With that being said, I would pair up the 18g with a gt35r (1.) If I am correct. I am looking into this and have work a few things out

 

Good luck

 

By compound..... do you mean sequential? If so, there is no point.

 

compound is one smaller turbo feeding a bigger one, its a lot of piping and kind of mind boggling the first time u look at it, look it up for diesels some set ups are insane

 

Yeah sequential, like TT rx7's and supra's. Not sure about diesels, but for a 4 cylinder, totally pointless.

 

Not sequential, compound. One turbo compressor output actually flows into the inlet of a second turbo compressor. They are not parallel but more so in series.

 

I have compound turbos on my dodge cummins s300 feeds an s400 makes 60 psi when set to kill. to do it on an s you will need to do a tremendous amount of fab work have thought of this myself. would need 3 waste gates two for the top turbo so it doesn't over speed you will want it to be at full spool by 2500 rpm then a large turbo on bottom or a good waste gate so that the second turbo is spooled by 4000 rpm and vtec should be right after the second lights. if I ever build a turbo s this is what I will do power everywhere no lag and 500 hp that you can drive in the corners I expect the endeavor to be 20 k the setup on my truck cost about 8k and I built most of it but man the power 600 hp 1250 torque and I can make 80 psi but the trans wont hold it good luck to you hope you pull the trigger