What kind of exhaust flange does the boostlogic manifold have?
Or what kind of turbo are they made to accept?

 

Some of that has been fabricated and some of it hasn't yet. As I understand it, the turbos (GT28R) I bought from them are slightly modified, but obviously the idea was that the would work with the manifolds they created. That's about the level of my understanding (i.e. not much); I'm working with a local tuner on this and there's going to be some back-and-forth with Boost Logic, I presume.

All still in planning stage... I'll keep folks posted as I know more.

--Steve

 

Steve, did you get the manifolds and other parts in yet? I want to check it out when you have some free time if you don't mind. I was talking to some one about what you wanted to do and they are interested in it. Let me know, my cars running now.

-Bill

 

As a very experienced fabricator and one of the only people to successfully build a custom turbo kit for the Z, i'd strongly recommend buying a kit. It is by far the hardest car i've ever turbocharged and there is ALOT of time involved in building a custom kit. It's not easy! Lets put it this way, i'm putting an APS twin kit on MY Z! Michael wanted to be the first and didn't want to wait for a kit, so I built his. At the time, it was the only option. Now there are much more feasible options out there that have proven themselves time and time again. It's your car and your money, but i'd strongly recommend buying a kit.

 

Bill, I ordered the stuff on Monday so it will be next week before anything arrives. I'll let you know--and I'd love to take a ride in your car

tony1, I understand. If I had no FI on my car right now I would go with a kit. But partly because I already have an intercooler, an FMU, a solution for timing/fuel tuning, piping from intercooler to manifold, injectors, etc. I have decided to experiment with this.

The experiment may fail. That's OK... Everyone (especially me) will learn something in the process and, hey, it's only money. The last twenty years I spent driving a crappy beater car have earned me the right to do this

--Steve

 

how much was the manifold, and the turboes?

are they ball bearing?

 

Tony,

Since you are an experience turbo fabricator/installer/tuner I wanted to ask you a couple of questions regarding a single turbo option. I know every production turbo kit fabricator has said that the single turbo option was not really optimal because of the lack of space to put a "big enough" single turbo. Now my question is regarding the possiblilty of using one single "smaller sized" turbo like a GT28R that could still provide the 5-6psi of a "base" kit. Of course, there would be a more pronounced turbo lag and a fairly limited attainable peak power, but for someone who would plan to keep a "production" kit at those levels anyway, this may not be such a drawback. My biggest question however, has to do with the actual settup of a single turbo on our engine. With exhaust manifolds on opposite sides, would a single turbo settup consist of one stock exhaust manifold on one side (still dumping directly out the exhaust), and a single turbo manifold on the other side (basically only three exhaust ports drive the turbo), OR does the single turbo manifold still have to involve all six exhaust ports (in a wrap around the bottom of the engine style?). Obviously the biggest reason prices for TT settups are so high are the facts that you need 2 turbos,2 wastegates and 2 manifolds rather than just one of each (and these are the most expensive components aside from the IC).
If you could drive the turbo with a single-side-manifold, then technically one should be able to use all the measurements from existing kits for piping, as well as their manifold, and a single inlet IC to make a cheaper reliable kit.
Even if I am completely wrong, could you give us some of your thoughts/ideas on single turbo settups. Thanks.

 

actually a gt28r single would spool up helluva fast. but it would not work well on the topend. as far as your other questions ill let someone else chime in

 

here is a gt28r compressor map. The first line is the engine cfm demand @ 6500 rpms in a twin turbo application.

The second line is using the gt28r in a single turbo application.

You can see this turbo is in no way even close to big enough to use as a single!

 

hey squill where are you getting all these maps from? try pulling up one for a t-56 and show us how it would work as a single.

 

does anyone know where I could purchase 2 X Garrett gt28r for a reasonable price ?
the best price I got was $ 740 each..
SQUILL what IC should I consider buying ?

 

I found a great site about a year ago has alot of great info and java calculators related to turbo applications. http://www.stealth316.com/2-turboguide.htm

When i need a compressor map i just search around on the net till i find it ... T-56 is too small probably a t-70 ill look for it.