My 351w Explorer EFI conversion thread

[Viperwolf1]

1/2 pipe i think.

I think you're right.

 

[pa69broncoguy]

Thanks guys

 

[dclack]

Hmmm... Seeing how you have the lower bolted in place, I would recommend finding a freeze plug instead of tapping the hole. You don't want metal shavings in the intake.

 

[pa69broncoguy]

I think it would be fine to tap. All you would need to do is put a rag in the hole put a little grease on the tap and vacume it out before pulling the rag. It is after all only exhaust so it should blow out.

 

[chuzie]

I tapped it installed. Did same thing. No issues

 

[pa69broncoguy]

Tonight I put in my van computer mount. It is a little smaller than the explorer one so it is a little less forgiving of my sloppy job cutting. I added some rtv around the outside to help sealing since all the seal wasnt touching because of my cutting job.

I laid out my harness and hooked up the injectors, cam sensor and crank sensor. Everything else looks good and laid out well so I dont forsee any problems with the rest.

Here are a couple pics.

 

[EFI Guy]

Looking good! I agree, keep the intake ports taped up, grease the tap, shop vac anything you missed, but don't worry about it too much.

 

[chuzie]

I once dropped a small socket in my intake and it lodged deep in the head. Pulling the intake pissed me off enough to ALWAYS make sure I tape it off when exposed.

 

[pa69broncoguy]

I once dropped a small socket in my intake and it lodged deep in the head. Pulling the intake pissed me off enough to ALWAYS make sure I tape it off when exposed.

Yeah, I was thinking i would probably be tearing it down if i didnt get it taped off. Im sure it has the same magnetic force that the tiny gap under the workbech has. ;D

 

[pa69broncoguy]

I worked on fitting up my power steering pump today. I reused my astro pump/w the truck mount that i previously modded to accept the sag pump. I cut two inches from the rear mounting surface to allow it to line up. It took a little wile to clearance it to fit but i think it is good now. Ill try to find a belt tomorrow. Here are a couple pics.

 

[pa69broncoguy]

Progress

I tapped my intake and plugged it a couple days ago. It is 1/2 npt that it needs to be. I got a belt for my serp setup, it looks like it should work good. Tonight I mounted my accumulator/ filter I bought from BC to the core support. Im planning on plumbing up the fuel rails / acumulator with the twist-tite hose with AN style fittings. Here are some pics.

 

[pa69broncoguy]

my fittings and line and pump came in from summit, I fitted them up loosely and found that I missed a couple when figureing out what to order. I should have the rest it a couple days. I also mounted up my fuse panel and relays. Here are a couple pics.

 

[pa69broncoguy]

Efi fuel line

I got my high pressure pump lines hooked up tonight. The lines go on tight so i can see how they can hold so much pressure. Here is a pic.

 

[hankjr]

Jason looking great. When is the fire up date?

 

[pa69broncoguy]

Jason looking great. When is the fire up date?

Thanks Hank, Hopefully soon, all these little details take forever to work out, I am making slow steady progresss, just not as fast as I would like. ;D

Heres my to do list
------------------------

Its looking like I will need to cut down the coil pack bracket, it looks like it might hit the hood brace if i leave it at stock height.

remove the fuel filler neck and hook up my return line to it.

Figure out gas petal/ throttle cable

Cut hood for clearance, normaly it may clear but mine will not

Finish hooking up my wires

get a Upper radiator hose

pick up some new spark plugs

Install upper/throttle body and figure out a air cleaner

 

[pa69broncoguy]

I worked on shortening the coil pack bracket today, i ended cutting it down 1 inch. It took quite a bit of trimming but i got it to clear everything. It still looks like it will hit the hood brace so it looks like it will need a bit of trimming too. I also hooked op my new hoses for my pcv valve. There were 3 vacume ports that i didnt need so they got blocked off. Here are a couple pics.

 

[Viperwolf1]

Take the tubes out of the unused vac ports and tap them for a permanent plug. You don't want the hose breaking down and leaking after a few years.

 

[pa69broncoguy]

Take the tubes out of the unused vac ports and tap them for a permanent plug. You don't want the hose breaking down and leaking after a few years.

.
I didnt know how to get the steel out and didnt want to put in a bunch of shavings inside the intake so i cut them close and welded 2 of the three shut. I still do have the one capped. The other you can see are coolant lines that are looped, they really dont matter if they leak.

 

[lars]

Thanks Hank, Hopefully soon, all these little details take forever to work out, I am making slow steady progresss, just not as fast as I would like. ;D

Heres my to do list
------------------------

Its looking like I will need to cut down the coil pack bracket, it looks like it might hit the hood brace if i leave it at stock height.

remove the fuel filler neck and hook up my return line to it.

Figure out gas petal/ throttle cable

Cut hood for clearance, normaly it may clear but mine will not

Finish hooking up my wires

get a Upper radiator hose

pick up some new spark plugs

Install upper/throttle body and figure out a air cleaner

You can use a 5.0 Mustang throttle cable with the stock gas pedal. There used to be a nice writeup on line describing the gas pedal mod but I can't find it. It's pretty simple though. Costs nothing and can be done in 30 minutes or less. At the other end, if you get an Accufab (or similar) spacer to go between throttle body and upper intake, you can bolt the OEM 5.0 Mustang cable bracket to the spacer, and hookup to the throttle body becomes trivial. It takes a little thought to snake the Mustang cable around to the T/B but it works fine. Mine's been that way for 12 years and 70k+ miles. My cable came from a yard for $5. Still works fine.

Even with a 1" body lift I had to severely cut down and reposition the coil bracket to get my coil packs to clear the stock hood cross brace. That's with a 5.0 motor. Not sure how much higher the bracket sits on a 5.8, though I may be finding out sooner rather than later. I'm done with my heavy stock hood. I have a WH "highlander" hood waiting in the wings to replace it. Will be luxurious to have clearance and a lightweight hood.

 

[lars]

Take the tubes out of the unused vac ports and tap them for a permanent plug. You don't want the hose breaking down and leaking after a few years.

Agree. The steel tubes are just pressed in. Grab with vise-grips. Twist. They come right out. Holes are such that I found taps to fit that didn't require tap drilling. You'll get some debris in the intake but if you use grease on the tap it won't be much. Use compressed air to blow out the last. Can also rinse with solvent just to be sure. Besides guaranteeing no problems later, it looks cleaner without a bunch of "tubes to nowhere" poking out from under the intake.