Need advice/help: Engine management system suggestions

[Andy@PrimeTuning]

As long as they pay me for it.

Not saying a Bosch sensor is terrible. But they do have a shorter lifespan and can sometimes give false readings without giving any other signs.

[Rudder]

Turbostang-
You gave me the answer I was looking for so no harm done and I appreciate the candor. I have zero knowledge of tuning a car with a computer but I have the ability to learn. LOL
From the research I’ve conducted based your inputs, I think I’m going with a F.A.S.T system but I don’t know which exact one yet. I already have an Edelbrock EFI Spider intake/4150 GM-style TB and what I’m looking for now is a set of 60lb/hr injectors. Thought 42’s would support my engine combo but I’ve been thinking I need to go just a tad bigger to keep the injector PW correct.

ShumpertDavid-
I'm starting from scratch as far as the car is concerned..she's a 65 Mustang. I've had the car since i was 14 and i'm cough, 40, cough, now. Not saying age has anything to do with it but i do have some experience with building cars and tinkering. Thanks for the help and i may PM you to get more of your specific thoughts on the wiring.

PrimeTuning-
Thanks for the advice on the O2 sensors. Will definably go that direction...i’ve learned over the years to go with not what’s cheapest but what’s best, per say. Thanks and I’ll probably hit you up for some help with my F.A.S.T choice, if you got the time.

[turbostang]

Turbostang-
You gave me the answer I was looking for so no harm done and I appreciate the candor. I have zero knowledge of tuning a car with a computer but I have the ability to learn. LOL
From the research I’ve conducted based your inputs, I think I’m going with a F.A.S.T system but I don’t know which exact one yet. I already have an Edelbrock EFI Spider intake/4150 GM-style TB and what I’m looking for now is a set of 60lb/hr injectors. Thought 42’s would support my engine combo but I’ve been thinking I need to go just a tad bigger to keep the injector PW correct.

ShumpertDavid-
I'm starting from scratch as far as the car is concerned..she's a 65 Mustang. I've had the car since i was 14 and i'm cough, 40, cough, now. Not saying age has anything to do with it but i do have some experience with building cars and tinkering. Thanks for the help and i may PM you to get more of your specific thoughts on the wiring.

PrimeTuning-
Thanks for the advice on the O2 sensors. Will definably go that direction...i’ve learned over the years to go with not what’s cheapest but what’s best, per say. Thanks and I’ll probably hit you up for some help with my F.A.S.T choice, if you got the time.

Man, the instructions on the FAST and BS3 are SIMPLE. Especially if you are using a TFI distributor for some reason. (I'd be using a crank trigger for timing accuracy, but TFI does work ok.)

If you've turned wrenches and have a decent understanding of a PC, you will be FINE tuning your own car. Almost all changes in the tune can be done real time and you will HEAR whether or not it does what you expect. Rely on your sensors (the part mentioned above) and tune according to what you see on the screen and in logs, and before you know it, you'll be done. I had NEVER tuned a car in my life or even seen the screens on a FAST (speed pro at the time) setup. I put it on my car and 2.5 hours later I was driving down the street...and THAT night I made my first passes... It can be done.

[71chevellejohn]

Bummer... I was just going to come in here and post my Megasquirt 2 for sale

[shumpertdavid]

Man, the instructions on the FAST and BS3 are SIMPLE. Especially if you are using a TFI distributor for some reason. (I'd be using a crank trigger for timing accuracy, but TFI does work ok.)

Both of the setups I did, we used Fast's distributor (cam & crank sensor built in), 351 based applications. The confusing part for the first time was learning what to do and not do, like making sure to cancel out whichever of the 2 cam and crank sensor styles you don't use (my case was canceling the inductive signals since Fast's is a hall effect style), removing the circuits that weren't going to be needed, building a good ground system, etc. The instructions might be better now, my first 1 was 4 or 5 years ago. At that time there didn't seem to be much in the way of instructions.


If you go with Fast, Mac tools (pn TCT1028) offers a decent set of crimpers for the GM style terminals that come with it. You will be doing a lot of crimping since you have to build every connector from determining wiring length, installing weather proof grommets, striping, crimping, and pinning out the connectors.

If you end up going TFI, pm me I believe my buddy still has the TFI harness left from his. He opted for the Fast distributor to make the sequential part more simple to setup.

The downside to the Fast distributor is that the Cam and Crank sensors are housed in one module in the distributor. Both setups would set cam\crank error codes and we finally had to turn that particular code check off. There is no independent adjustment for cam\ crank sync as there would be with individual sensors.

[Rudder]

Bummer... I was just going to come in here and post my Megasquirt 2 for sale

Working a deal now on a FAST TB...if it falls through, and you're serious, i'll give you a shout.