I hope that I pasted that link right.
www.members.xoom.com/dlagrua/turbo.htm

That is a link to Dennis's turbo page, he is doing what it sounds like a bunch of you are doing, only his is not just a turbo or just a 3.4 swap it is a turbo 3.4. His page explains in great detail how to and how not to turbo a stock 2.8, he is helping me over the phone with my 3.4 build up. As I am using a Camero 3.4 in my conversion. If someone has a question that I may be able to help with please feel free to ask. I have heard one interesting thing though. A guy bench tested a set of 2.8 inj, and a set of 3.4 injectors. Now keep in mind that the 3.4 are supose to be 19# inj and the 2.8 I belive are supose to be 15#. He found that his stock 2.8's were flowing better than the 3.4's. Which does not mean that you are going to get any more power with the 2.8 but you may not need to use 3.4 injectors. If you have the money to spend then by all means use the 3.4 but if you are on a tight budget the comp should be able to compensate and allow you to run the 2.8s and be fine, you can always install and adj. Fuel pressure regulator and get the 2.8s to flow fine. Anouther cheap solution is and please do not kill me for saying this, this is going to hurt but Ford 302 injectors are bigger than all of these not too big but are bigger. You have to buy a set of 8 but that set of 8 is cheaper than a set of 6 fiero or Camero injectors. You must and I do mean must port the Stock manifolds when putting them on the 3.4 I do not mean go out and spend 200$ on machine work just get a dremmel or somting and clean up the left over metal in the manifolds. A good gasket matching job always helps on the intake. I hope that I have passed on at least some usefull wisdome, I am just posting what I have learned from the experts.
David

http://members.xoom.com/dlagrua/turbo.htm

That should do the trick, sorry about the douple or triple post

David,

Thanks for sharing our experience so far. One question for clearity purposes... When you stated: "You must and I do mean must port the Stock manifolds when putting them on the 3.4", I assume you were refering to the exhaust manifolds. Correct?

Keep up the posts,
Roy

Yup the exhaust manifolds

Actually, I am working on a twin turbo 3.4 setup, but right now, I am still getting my 93 Camaro motor installed also. Flywheel MUST be from an 88 GT or 3.4 DTC. You CAN'T use the standard 3.4 flywheel. Adjustable, fuel pressure regulator is helpful but not necessary. 2.8 chip not 3.4 should be used, however, I am looking into ADS chip for it.
As I am working on exact same project, please keep posts coming..
Does Dennis have his 3.4 turbo finished yet?
Design 1 claimed they did, but have not posted the info or emailed me back regarding it.

I am going to try and get ahold of Dennis and see if he can come over and give us all a hand on the details. He has been running a 2.8 turbo for over a year now and has built more than one. His 3.4 turbo should not be too much differnt. As for chips you do not need to swap anything from your stock chip. But in the case of a Turbo, it is best to use an 85 V-6 computer. The programing is different for the 85, from what I understand the 85 computer allowed higher emmisions and could compensate for boost conditions, where in 86 GM had to remove that feature from the programing due to emmisions restraints.

I know I don't HAVE to swap chips, but I want more hp of course. Do you think a high performance chip for 2.8 would give me a power gain? I would think so although the timing advancement etc that it was set up for might be different for max gain on the 3.4.

Just ordered today my 3.4 from Ed Parks at the Fiero Factory. Will pick it up at the swap meet next Saturday April 28 :-) With the new info above I am still not sure which injectors to use with it. May try the stock 2.8 with a fuel preassure regulator first and if I find problems then I may try the Fords or buy used from Ed.

Ya I never thought of that, a performance 2.8 chip that is programed with a more aggresive fuel curve would make the stock injectors pump a ton more, and would make the 3.4 punch out a few more poneys, now emmissions would be a hassle but hay, who knows. That is kinda like my idea of using the cold start injector wired to a nitrous system to shoot more gas when the nitrous is on. I like it. Ya. I am going to talk to our local chip programer today and see what he can do with my chip. Thanks

Let me know what you find out.
I am using 3.4 injectors because I got them with the engine. There are low enough miles that I don't see the need to change till I start adding SERIOUS hp.