got 95 z getting ready to start my turbo project need some info on efi setup 408 lt1 planning on 91mm turbo i just cant deal with stock ecm giving up at 7k thanks for the help

 

fast or BS3

 

BS-3 has my vote...lots of features

 

Big Stuff 3 is the way to go, but is by no means cheap. Make sure you order all the harness and have the box provisioned for everything you need. It will not control your transmission if you don't have the box set up for it. We actually had to pull one out of a car and ship it back, because the customer didn't realize what he did or didn't order.

 

now in comparisson how is the Big Stuff 3 compared to the MegaSquirt system which you have to build from scratch and solder it all together.

 

No comparrison....The BS3 is basically a plug and play system vs a universal system such as Mega Squirt. As I said previously the BS3 is expensive, but worth it in my opinion.

 

You can get the Megasquirt pre-assembled for around $400.

Mike

 

well its sounds like everything else in the hot rod world all have pro's and con's would like to talk to someone who has ran any system for awhile this is going to be a street car so the system i use needs to be pretty durable

 

We have used F.A.S.T, Big Stuff 3, Mega Squrit, and DFI on vehicles.

The Mega Squirt was in a XR4Ti with a 302 Ford and 60-1 Turbo. It was on there for years and never had any issues. It is a good system for the money and is a nice intoduction into EFI.

We used F.A.S.T XFI on a 1998 Mustang Cobra and it was a little more plug and play and allowed for a little bit more indepth tuning.

We have recently used Big Stuff on a 1995 Camaro as well as a 1998 and that is a step up from F.A.S.T in my opinion. It is completely plug and play as well as even more indepth with its tuning features.

All the vehicles listed above are street cars.

 

I, personally, have tuned stock LT1, DFI, and a Holley Commander. I liked the user interface on the Commander the best, as it was the most user-friendly. That made tuning go smoother also. It also handles boost well, too, and is very easy to configure.

Mike

 

Are you going to tune it yourself or pay someone to tune it? For the price of BS3, you can probably get MS or fast and have someone install/tune it, lol.

 

The install and tune cost on MS could be high unless you have a buddy or a local expert. If you are a diy type person you can do it very cheap. @$250 for the the setup.

On the other hand BS3 has proven itself and a lot of people like a simple plug and play setup.

 

Does the BS3 handle Low Z injectors and 8 coils?

 

In my application, I chose to run an LS-x style Big Stuff-3 (on a '96 LT-1 motor) which obviously is designed for 8 coils, but if you chose to run the LT-x BS-3 system, you could utilize the LTCC system that Bob Bailey makes and run 8 coils.

The Big Stuff-3 will definately run low impedance injectors (I'm running 95lb. injectors). It may even be able to handle high impedance injectors as well, but I never researched that. With all of its features and data logging capabilities, it's a excellent system...but it's not the chepest system by any means.

 

What did you do for crank trigger??? if you are using the ls1 setup you need a crank trigger.. care to post some pictures?