want to go EFI

[rmousir]

What is the easiest way to go efi on my '66?

I have started collecting parts and have done a lot of reading. I want to do this on the cheap. I have a '95 roller motor in my car running on a carb already.

thanks

[roan65]

easiest way is to buy a complete car, and drop it in. The little things nickle and dime you. with a complete car you will have everything.

[Rickmaan]

Doing it cheap and doing it easy aren't exactly compatible ideas. The easiest way to go EFI if you already have a carb set up on it is by getting one of the aftermarket systems self contained in a TBI unit that bolts on in place of a carb, like a holley commander or the Retrotek Boss EFI. They are definitely not the cheapest way to go, but the installation is little more than swapping a carb and running some wiring. Some people knock the concept of TBi systems, but the ones available these days perform much better than the oem TBI systems of the 80's.

The most cost effective approach if you're only looking to get a stock oem system is probably the advice given in the previous post, just go and find a wrecked '89-93 5.0 Mustang that has a running engine in it and buy the whole car. Once you get the EFI system swapped into your car you can part out what's left of the donor car and end up with a relatively small net out of pocket cost. Just be aware that you'll still need some parts that the donor won't have, like an EFI compatible fuel pump that will fit on your car, because the oem pump from the donor is an in-tank pump and won't fit in your tank unless some serious customizing work is done. Also be aware that swaps of this nature can quickly accumulate unexpected costs when you start replacing all the 20 year old sensors and parts you just installed if/when running or drivability bugs surface. Another factor is if you plan on upgrading the oem system, like running bigger injectors and MAS, or an aftermarket intake, the cost advantage of using a donor car quickly shrinks to almost zero since the big cost items available from the donor end up going unused.

IMO, the best and most practical way to go (especially if you intend to upgrade an oem system) is to educate yourself very thoroughly on what's needed to make a complete running system, then shop for a complete system pulled from parted out car and you'll have the knowledge to know you're getting everything you need or what it might be missing. Even if you buy individual parts like new sensors (highly recommended) or a bigger intake it is still usually cheaper to get the rest of what you need by getting a complete system pull plus someone else has already done the work of removing it from the donor car for you. This approach often has better results because you can use the year/car of the donor as the model for getting replacement parts and avoid compatibility issues that can cause hard to diagnose issues that come from mixing components from different years or different cars.

[My427stang]

I will be putting a Retrotek Powerjection 3 on a 69 Camaro, mild 355, next weekend, looks like a very simple install. 1600 bucks or so and bolts in place of a carburetor.

Its TB injection, not ideal, but I will report back how it runs

[droptop73]

FAST has a new stand alone EFI system that is self learning/tuning. It looks pretty slick.

[wicked93gs]

OEM EFI would be the cheapest/easiest bu you need to constantly hunt and iece together everything you need

I am personally using Megasquirt...if you already have an EFI manifold, its probably one of the cheapest routes...but for those who do not understand EFI, the learning curve is very high

personally I would reccomend just hunting down everythin you need peice by piece...everything turns up on craigslist eventually

[brianstrange]

Drop a 5.0 intake and distributor on your existing block and use the 5.0 computer and harness. I'd use hard fuel lines, but you may be able to reuse nylon lines from a 5.0. The current fuel line can be used as a return,

[fonebooth]

budget is what determines what you want to do

the stock 91 efi works fine - esp for a daily driver- i have installed a few EFI installs complete and it comes down to 4 wires with the 5.0 harness

power-ground- key on- fuel pump..
no need to buy anything but the fuel lines- make a return-- i used a aeromotive reg. and ordered a billet fuel rail kit but you dont even need to do that


limitation of this is the 6500 rpm redline on the computer (approx) but with underdrive pulleys and mandrel bend exhaust with a blackmagic fan - 3.7 gears - larger Throttle body- and egr spacer.. the rev limiter i can hit thru 3 easily.. or the injectors are maxed out?? i have this setup in my 240z 5.0 conversion

i'm installing the FAST w/ Dynaformance stacked EFI into my 65 -- all sitting here on the bench-- looks fantastic IMO.. but the price is 10x what i put into the 91 efi on the 240z..

between the 2 i would choose SDS efi.. i have used it in a few cars - user friendly..

i also have a racecar with Autronic (very similar to Motec)-- but difficult setup.. runs very well on track car though

[JamesWnew]

I've got some stuff on my website on how to go efi.

[rmousir]

OK.. here is a little info on my status.

These are the parts I have coming soon. Got luck and only have to pay shipping on them.

-Stock upper & lower 91 EFI intake with injectors
-rails
-some new hard lines.
-a complete 91 EFI harness (no computer though)


I know i need an distrubtor, computer, and fuel pump. A mod to the accelerator pedal to. I am sure there will be other things to do.

Do I need to aways stick with '91 for doner parts or is there a range of years that I can mix and match with and still have the same parts?

My motor is a '95 5.0 HO roller motor that is running a carb currently, with some bolt on power adders.

I figure it will take a while before I get all the parts together but when I do, I think the efi will run much better.

I am using the mustangsplus efi converstion they had in there catalog as a guide for how I am doing mine. Seemed simple enough if I can get all the parts.

Thanks very much for any and all info, comments, and suggestions.

[ozarks06]

Originally Posted by roan65

easiest way is to buy a complete car, and drop it in. The little things nickle and dime you. with a complete car you will have everything.

What he said +++.

[JamesWnew]

Originally Posted by rmousir

OK.. here is a little info on my status.

These are the parts I have coming soon. Got luck and only have to pay shipping on them.

-Stock upper & lower 91 EFI intake with injectors
-rails
-some new hard lines.
-a complete 91 EFI harness (no computer though)


I know i need an distrubtor, computer, and fuel pump. A mod to the accelerator pedal to. I am sure there will be other things to do.

Do I need to aways stick with '91 for doner parts or is there a range of years that I can mix and match with and still have the same parts?

My motor is a '95 5.0 HO roller motor that is running a carb currently, with some bolt on power adders.

I figure it will take a while before I get all the parts together but when I do, I think the efi will run much better.

I am using the mustangsplus efi converstion they had in there catalog as a guide for how I am doing mine. Seemed simple enough if I can get all the parts.

Thanks very much for any and all info, comments, and suggestions.

If you've done all that and have decided to follow the M+ conversion, then what are you asking for help on?

[rmousir]

Originally Posted by JamesWnew

If you've done all that and have decided to follow the M+ conversion, then what are you asking for help on?

I learned a long time ago, things are never as easy as they appear. I also learned that it is much easier to learn from those who know more than I do. I am just trying to get as much knowledge and information as I can so as I put this project together I will have a clear understanding of what needs to be and what to expect as I get through it.

You have some great stuff on your site James.