Need some EFI recommendations

I agree with 68keyblr.
My set up; 92 H.O. Short block, TFS stage one cam, AFR165's, JBA 1650's, Exploder intake(port matched), 24lb.inj, 65mm TB, 73mm MAF, 4R70W tranny, & 3.25 rear.
My goal is more street torque than peak HP.

I run a B303, X3Z EEC, 70mm Maf, Cobra manifold, 24lb'ers, Gt40 heads in a '65 coupe set up f. roadrace, and it still turned a best of 14.0@104 w. 3.25 gears. Is very well behaved and fast, and I'm pretty happy with it.

...and 65mm TB.

More plumbing and wires than I like though, compared to the clean engine bay of a Carb'd 289.

redhorse65 said:

.....and it still turned a best of 14.0@104 w. 3.25 gears.

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What Tranny? rear tires/wheels are on the car?
Whats you 60' time?
Traction limited?
Havent had mine to the track, just curious.

Eric,

Just read this post today (catching up as I haven't been on here in a while). Anyway, I was able to get my car running over the weekend with an EFI conversion started two and half years ago. The swap didn't take that long, it's all the other stuff that life threw at me.

My setup is a 302 with Edelbrock Performers, TFS1 cam, Explorer intake, Explorer TB and 24lb injectors.

I run a 255lph Walbro external pump (packaged as a NOS brand).
80mm Pro M MAF (it's one of the big cast aluminum ones).
It's a five speed car, but I'm running on a stock A9P (automatic) computer right now. Also have a A9L.

What I did was recreate the engine combination that was in my FFR Cobra. It was a fast and bullet proof set up that ran 11.6's on street tires in that lightweight car. My '65 coupe weighs about 600lbs more.

Plan to have this one tuned and a chip burned.

Am local to you (Riverview) if you want to talk further or see what I did.

Jeff

Decurion said:

To start with, my goal is to put EFI in my 65 Comet. Its got a 3.55 gear, c4, 2500 stall converter. Engine is a 306 with trick flow stage 1 cam (~222 at .050, .515") and lightly ported windsor jr heads, long tube headers. Intake is undecided, but most likely explorer/gt40.



My question is what size do I need for:

a) fuel pump

b) injectors

c) MAF meter

d) throttle body



Also, Ill most likely use a stock computer and have it tuned, but for those so enlightened, what would be the advantages of using MegaSquirt? I would imagine Ill build a stroker or boosted engine down the road, but not for some time.

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Decurion said:

From your setup it sounds like I can just get what I need from the junkyard. I like that! I happened to find a couple sites that may be of use to anyone running fuel injection, though they are intended for fox-bodied Mustangs. Looks like I can just go right for the MKVIII injectors and mass air meter, while using the Explorer intake and throttle body. My thrifty sense is tingling!

Junkyard Horsepower SUMMARY! - Corral Forums
Stan Weiss' - Electronic Fuel Injector (EFI) Flow Data Table

Heres the progress on my cylinder heads so far:
Windsor Jr heads pictures by 1strealjeep - Photobucket

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I don't believe it's quite that simple--in order for it to work, you have to have several things if you're using an EEC-IV ECM (real high-level overview):

1.) You have to have some type of method for tuning the car the ECM (TwEECer, Quarter Horse, etc.), that you can use to input the parameters for the components
2.) You have to have the data for the components (i.e.: MAF curve, injector specs, etc.)
3.) You will need to know *where* to input the data for the components within the binaries for the ECM

You might find it useful to spend some time over at EECTuning.org • Index page, and browse around the posts there . . . LOTS of good info regarding this stuff there.

Decurion said:

When I said MK8 injectors and MAF, I meant 24lb injectors and 80mm mass air meter. It just so happens the MK8 uses those, so Ill source them that way rather than spending ~$600 on new ones, I can spend maybe $50 for both. It may not be an ideal setup to run with a stock A9(x) computer, but Im hoping it will run well enough that it wont NEED to be tuned just to be driveable. For example, a guy I worked with built a stout 347 for his 1990 Mustang using 36lb injectors, 80mm MAF, spyder intake, ported Edelbrock heads, and a solid roller cam with about 245*@.050 and .580 lift. He said it definitely made more power after tuning, but ran great and had no driveability problems before.

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I have a 98 Explorer shortblock, into which I installed a CompCams XE258HR camshaft, and installed a set of AFR 165 heads. I orignally was runing a Holley Street Avenger 770 on a Weiand X-Celerator single plane intake, and I recently converted over to the original Explorer intake with no EGR, using an Edelbrock 70mm TB.

I found a great deal on E-Bay for a brand new FRPP 90mm Lightning MAF and a set of brand new FRPP 39lb injectors--I paid something like $210 shipped.

I'm using an A9M ECM with a TwEECer, and I can tell you from my experience that the engine won't even start with this combination--I had to enter adjustments for the MAF, the injector specifications, and then I had to change the cranking fuel as well.

With what I now know about these ECM's, my guess is that the MAF's and injectors to which you referred are enough different from what is contained within the original ECM binary that you would have to do the same thing (or, get a chip burned).

Once I got all that changed, of course it would start and run well . . .

You might consider trying to find a FRPP 90mm Lightning MAF, because they're relatively low priced (I've seen them for as low as $100 at seferal places on the web), they have well documented data (their MAF curve is included in at least two different software tuning packages I've seen), and best of all--you get a warranty on it.

You might even get as lucky as me and find a new set of injectors at a really good price, too.

Just some food for thought . . . more info about what I've mentioned is over at EECTuning.org

Good site for a home brew wiring harness.

Ford Fuel Injection Wiring Harnesses