New guy to forum

[Barnyardengineering]

I am new to fuel injection swaps. I have raced dirt drags and speed pit mud runs for years and can make a holly double pumper do what ever you want but I have little knowledge on efi swaps. Joined the forum to hopefully be able to gain knowledge into what most people on here, I would assume would tell me is and easy swap. I am building a street / play toy truck for my daughter. She will be 16 in a year and 1/2. The truck is a 4wd 86 chevy swb it have a carburated 350 in it now but. I have a complete 93 chevy 4wd TBI 350 and 4l60. My goal is to build a 383 stroker with mild cam and convert it to efi minus the egr and cat. Building the engine no problem getting the harness modified is doable sure I will have questions. But tuning and engine with a computer is what worries me.

[Barnyardengineering]

I forgot to mention I also have access to a throttle body from a BBC if anyone thought the SBC throttle body would be to small. I also have considered injecting a 500 caddy in this truck if that is feasible. I would like to retain the lock up feature of the torque convertor also.

[Skinny Pedal]

Welcome. Where are you located?

[Barnyardengineering]

Southern Ohio

[dave w]

I would use the BBC throttle body, even on a 350.

The caddy engine can be TBI injected, using a 7 pin module / HEI distributor.

The 1227747 TBI ECM is a good computer to learn TBI with.

Are planning on burning your own chips?

dave w

[Barnyardengineering]

I will probably go with the 383 I will have to look and see what # ecm I have. I don't know what is required to burn a chip as of yet. I would like at some point to be able to do my own yes. We offroad along with racing and I could see it being nice to be able to burn my own chips for trail vehicles.

[dave w]

The EFI learning curve will be steep, but very doable!

Do you have an OBD1 TBI vehicle you can start learning EFI with? Having a running driving OBD1 TBI vehicle will help with learning TBI.

dave w

[Barnyardengineering]

No I don't have one. The oldest fuel injected vehicle I have is a 2000 jeep Cherokee. It is a trail jeep at that. I have a pretty good understanding of how injection works what I don't understand and I could see how having a running vehicle would help is adjusting the parameters in the computer. I originally was going to put a carb on it and go. And before it is all done I still might. I am going to be on a tight time table. I have body work to do to it also I am swapping over to 3/4 ton axles and doing a 56" spring swap in the frt for suspension flex.

[dave w]

Perhaps a mostly plug-n-play TBI system would be good option for you?

An alternative to chip burning would be "Chip Emulation" with the Moates.net Ostrich 2.0 http://www.moates.net/ostrich-20-the....html?cPath=64 which would allow parameter changes real time even when driving! You can use TunerPro RT software to edit parameters and upload / download to the Ostrich 2.0.

dave w

[Barnyardengineering]

What are the draw backs to Chip Emulation ? Also I have been reading about the Android App ALDLDROID have you worked with that any ? I would kind of like to run that for a dash if possible.
Thanks for helping direct me.

[fastacton]

I don't know of any real drawbacks to emulation except for cost. ALDLdroid does work well as a dash, especially with the '93 and up TBI ECMs, it's a little slow with the 7747. I use it for my gauges on my TBI350 280Z. It won't have oil pressure or fuel gauges without some extra work, though.

[Barnyardengineering]

I guess if it was simpler to do I could swap the complete 93 tbi motor in the chassis get the egr and post cat o2 turned off. Play with that till I was more comfortable then build the 383 and inject it. My original plan was to get the 383 running correctly on a carb then switch it to injection. I was going to do the TBI setup since I happened to have one laying around. I also considered using a megasquirt but I have heard gm computers reprogramed work better. And part of switching to EFI with the gm ecm is that I can have it lock up the convertor like it would have from the factory.

[dave w]

My original plan was to get the 383 running correctly on a carb then switch it to injection.

That's still a good plan. Maybe plan a fuel delivery system that is EFI ready, or can easily be converted to an EFI fuel delivery system once you take the EFI plunge.

dave w