I am looking into maybe doing diy twins with stock charger. Everything I read people say s475 most say Borg warner P/N 171702 S475ay. I tow a 31' camper and would like to lower egt but want to stay very tow and daily driver friendly. Would this charger b a good choice? How would I control boost on the big turbo? wastegate? if so how big of gate is needed? I don't have studs, rods and have stock pump with lift pump and efi. Are there any good tuners close to north alabama?
DIY twins
- Thread starter J17HENRY
- Start date
Friend of mine whos had this setup on an lb7 of his, said it was the best turbo setup hes ever had. Looking to do this kit myself soon.
I'm putting on the same kit very soon for the same reasons. I pull a 35' fifth wheel camper and I want lower egts. It will be stock turbo with a 475
I posted the same ? on diesel place this morning still no replies wow its dead over there, thanks for the quick replies. Do u need to controll the boost from the big turbo or will the little turbos gate take care of it? What kind of hp are most getting out of this setup? I am sure it can put up more than my stock motor can handle.
Most people run a turbine size so big that you won't build the boost that you won't need to gate it, only if you are pushing a lot of fuel or tight AR for some reason. That is why no gate on the primary/low pressure/ bottom turbo. When you get it on use the stock waste gate actuator for the IHI, you want it to open up quick