Installing twin T03s on 91 350 z28 with the 730 ecm. What needs to be done as far as additional fuel to feed the turbos and any other odds and ends.

Already searched and read Corky and Hughs turbo charging books.

Ok this might not be everything but it will get you started. Deppending on boost.
New injectors
A boost refference fuel pressure regulator
possibly a new map sensor off of a syclone.
Along with other turbo stuff like blow off valve. External waste gate if your turbo doesnt have one. Intercooler.

Our cars already have boost referenced fuel pressure regulators, or do you mean add an FMU (which is greater than 1:1 like our FPR's are)?

To use a Syclone MAP sensor, you'll need to convert to the Syclone ECU code ($58), and that's what I would recommend along with bigger injectors (which would X the need for an FMU) and a bigger/extra fuel pump. There's lots of info on here about all that. Read the turbo stickies too, more info than you'll have time to read.

If you haven't started with the TT setup yet, realize now that it's way more work than you might initially think even if you know what you're doing.

I already have intercoolers, turbos, headers, downpipes, and oil lines. I know i still need the intake tubes and connectors. I have also upgraded my injectors already and i have my own prom burner.

So should i upgrade the ecm to a cyclone or just run the 58$ code?
How much boost can i run without major changes to the car?

It would be easier to run the $58 code in the '730, it's almost the same ECU. All you have to do is repin it like the '749 and away you go.

From what other people have been doing with stock engines, I'd say ~10 psi should be a safe limit providing no detonation is present. I have no personal experience with that though.
Soon I will be boosting on my L98 however, which is stock other than a 9:1 scr with Speed Pro D-cup pistons and GM powdered metal rods that's all been spin balanced. If all goes well on the way to it (starting at low boost levels), I'm going for 15 psi. Tuning is key! Well, that and a huge intercooler.

Steve, that is one nice Eagle Talon you've got there. But must you quote it's 1/4 mile time next to you're former IROC's, it's kind of depressing....

Thanks.
Yeah it is, heh. Hopefully within the year it will read something more like:

90 Camaro IROC-Z: 12.1@123________96 Talon TSi AWD: 11.9@116

Then it wouldn't be quite as depressing.


So moneyman, have you decided anything yet?

How much of a increase in hp can i expect bolting them on my pretty stock 350 with a few bolt ons ( superram, upgraded injectors, 1000cfm throttle body)