Okay, I'm going to buy and install either twin GT28R's or twin GT28RS's. According to ATP Turbo, the GT28R will handle boost of up to 25 psi and the GT28RS will handle it up to 30 psi reliably. So I was wondering how much boost the 13b rew can handle reliably. Thanks.

pump gas...and water injection...I wouldn't go past 18psi, and I drive a single FD.

Okay. So does this sound like it would work: Get one of those dual setting boost controllers, and set the low setting at 10 psi, and the high setting at 15 psi? Or does that just sound dumb?

I wouldn't worry about boost control right now.



I'd worry about the fab work to get independant twins on there or are you buying a kit?



can't really just slap upgraded twins on the car.

I'm looking for a place to fab the manifold and downpipe. I think I found one, but haven't had the chance to call. They're a racing shop and their add in the phone book says that they do custom intake and exhaust fabrication. If I can't find anyone though or if it's cheaper, I might just buy the kit from rx-7store.net. I'm just trying to get this all the way thought through before I even start doing anything. I figure, if I know exactly what I'm going to do to my car, then I won't be buying anything that I'll need to swap out later. But Thanks for the input.