Building EFI fuel system

[Snoranger]

If it helps, EFI works so well for me that I kind of want an old carbureted motorcycle to remember the pain.

How’s it working on your Ranger?

I'll probably be selling the Ranger prior to October. It's barely been touched in the last two years.

 

[fastpakr]

How’s it working on your Ranger?

Hard to say, I haven't attempted to start it in a while. Still sitting outside lonely.

Pretty sure it's got a coil pack acting up when it gets hot, but I haven't put any real time into troubleshooting that.

Want a Ranger?

 

[fastpakr]

If I had a decent place to work on it, I might tear into things. But the garage is appropriately sized for a Model T, and there's no way I'm starting a long term teardown in the street out front. When I finished up the project back in '21, a friend had a massive shop with a gantry crane and all kinds of tools available. I would have never finished the truck up otherwise.

 

[rusty ol ranger]

If it helps, EFI works so well for me that I kind of want an old carbureted motorcycle to remember the pain.

I miss fuel metering systems i can wack with a hammer and soak in WD40 To get me home

 

[bobbywalter]

evil energy

 

[SenorNoob]

If it helps, EFI works so well for me that I kind of want an old carbureted motorcycle to remember the pain.

What is wrong with you? LOL. I want EFI on my old motorcycle but the China carb works well enough to not mess with it.

Seriously though, I would love a CB750-4. The multiple carbs setup scares me away.

 

[fastpakr]

What is wrong with you? LOL. I want EFI on my old motorcycle but the China carb works well enough to not mess with it.

Seriously though, I would love a CB750-4. The multiple carbs setup scares me away.

Oh I'd 100% continue daily driving the V-Strom. But something simple like a single or parallel twin would be fun. And there's plenty of space to pull a bike in and tinker, unlike the truck. Just doing an alternator on the car a couple of weeks ago was an annoyance out in the road.

 

[85_Ranger4x4]

You going with a sniper or something? Most of those setups come with AN fittings on the unit itself.. my vote would be to shell out the extra dough and go full AN.

You got a nice rig that you've put a load of work into.. little things like fancy fittings & hoses will help add to the 'neat!' factor at your car shows and stuff.

Does my plain rubber hose and screw clamps detract from my build?



Yeah, you can't see a thing under that big block air filter housing...

Except...why use what you got now as a backup? Wouldnt ya rather just keep what ya know works?

Because I am kind of weird.

Most carb guys don't stray far from home. Even fewer still offroad with them.

But also... not many aftermarket EFI guys go farther from home either. PCM dies and your truck is bricked right there until you get a new one mailed to you unless you pack a spare or can backwards swap to a carb on the fly. Most use GM based injectors and sensors so they are available everywhere.

And also... dare I say even fewer are running 40yo rigs very far from home with any fuel delivery system.

Yet here I am hammering down 10-15hrs from home to offroad and camp.

My faithful Edelbrock has done very well in the 14 years it has been on my truck. However if you have been following the Vagabonds... they were up to almost 13k feet this year. I went thru all the charts and everything, I can only get my carb dialed to 7k feet. I was going to try it anyway because science... but with a new baby this summer things just didn't work out.

I looked at getting a carb cheater, they said it would help compensate for altitude... and then raised the price to within $150 of aftermarket fuel injection. The only real advantages is at the end of the day if the electronics crap out I still have a carb and I don't have to touch the fuel sytem.

But I want to redo the fuel system and add a return style regulator anyway to maybe make life easier on fuel pumps and help cool fuel (which would also help fight vaporlock at high altitude as well)

So I set my sights on this:

Killshot Fusion

The Future of Throttle Body EFI is Here Engineered Precision. Integrated Simplicity. Real-World Durability. The Killshot Fusion is the next evolution in throttle body EFI systems. Building upon the success of the original Killshot, the Fusion takes everything users loved, robust hardware...

acesefi.com

So to answer your question... if I was to use the truck as a normal person would use a 40yo truck the carb works great. Even for long distance trips it has worked great so far. But high altitude isn't going to play fair with it.

 

[rusty ol ranger]

Does my plain rubber hose and screw clamps detract from my build?



Yeah, you can't see a thing under that big block air filter housing...



Because I am kind of weird.

Most carb guys don't stray far from home. Even fewer still offroad with them.

But also... not many aftermarket EFI guys go farther from home either. PCM dies and your truck is bricked right there until you get a new one mailed to you unless you pack a spare or can backwards swap to a carb on the fly. Most use GM based injectors and sensors so they are available everywhere.

And also... dare I say even fewer are running 40yo rigs very far from home with any fuel delivery system.

Yet here I am hammering down 10-15hrs from home to offroad and camp.

My faithful Edelbrock has done very well in the 14 years it has been on my truck. However if you have been following the Vagabonds... they were up to almost 13k feet this year. I went thru all the charts and everything, I can only get my carb dialed to 7k feet. I was going to try it anyway because science... but with a new baby this summer things just didn't work out.

I looked at getting a carb cheater, they said it would help compensate for altitude... and then raised the price to within $150 of aftermarket fuel injection. The only real advantages is at the end of the day if the electronics crap out I still have a carb and I don't have to touch the fuel sytem.

But I want to redo the fuel system and add a return style regulator anyway to maybe make life easier on fuel pumps and help cool fuel (which would also help fight vaporlock at high altitude as well)

So I set my sights on this:

Killshot Fusion

The Future of Throttle Body EFI is Here Engineered Precision. Integrated Simplicity. Real-World Durability. The Killshot Fusion is the next evolution in throttle body EFI systems. Building upon the success of the original Killshot, the Fusion takes everything users loved, robust hardware...

acesefi.com

So to answer your question... if I was to use the truck as a normal person would use a 40yo truck the carb works great. Even for long distance trips it has worked great so far. But high altitude isn't going to play fair with it.

Ah ok that makes sense. I knew you drove the shit out of it but didnt know you planned on parking it in the clouds lol.

Personally if i was going away from civilization hours and hours from home i would keep a carb....just for the fact it would be way eaiser to cobble togther if something failed. But the elevation does toss a wrench into it.

Just an idea though....and im not sure if they even did...but how high of elevations were the factory 2150 high altitudes rated for? Just get a 2 to 4 adaptor and bolt that on up high. Be alot cheaper and less headache....just an idea. But like i said i dont know what they were jetted at

 

[bobbywalter]

Ah ok that makes sense. I knew you edrove the shit out of it but didnt know you planned on parking it in the clouds lol.

Personally if i was going away from civilization hours and hours from home i would keep a carb....just for the fact it would be way eaiser to cobble togther if something failed. But the elevation does toss a wrench into it.

Just an idea though....and im not sure if they even did...but how high of elevations were the factory 2150 high altitudes rated for? Just get a 2 to 4 adaptor and bolt that on up high. Be alot cheaper and less headache....just an idea. But like i said i dont know what they were jetted at

today it is not easier to cobble together a carb to get going unless it is specifically this situation and even then a pcm swap is ten seconds and takes up less space..what is going to fail that is not parts sourceable?

he is already running a electric fuel pump. so you need a spare pump

an efi system will run when a carb won't due to vacuum signal losses

run like ass....but will run.

altitude and off road it takes some work and reworking to get by with a carb. extensive knowledge.

you will toast your battery and starter in short order in these situations. out on the trail running your battery low constantly cranking because you think carbs are reliable is a lesson well learned

running on the Rubicon, we jumped one old CJ 6 or 7 times before we got to Cadillac Hill. though it would have been fine with a 2100....but it was a stroker engine over carbed. was awesome at the dunes. sucked wheeling.

the scouts jeeps and broncos get by on the normal stuff....

but what I call normal most people are never going to do.


all that said running a 2 bbl on it and a jet kit the ol 302 would likely do ok as long as it was lightly loaded .

but running with Ecoboost....that is the ticket.

Eric got by with a loaded for bear 3.0.

 

[rusty ol ranger]

today it is not easier to cobble together a carb to get going unless it is specifically this situation and even then a pcm swap is ten seconds and takes up less space..what is going to fail that is not parts sourceable?

he is already running a electric fuel pump. so you need a spare pump

an efi system will run when a carb won't due to vacuum signal losses

run like ass....but will run.

altitude and off road it takes some work and reworking to get by with a carb. extensive knowledge.

you will toast your battery and starter in short order in these situations. out on the trail running your battery low constantly cranking because you think carbs are reliable is a lesson well learned

running on the Rubicon, we jumped one old CJ 6 or 7 times before we got to Cadillac Hill. though it would have been fine with a 2100....but it was a stroker engine over carbed. was awesome at the dunes. sucked wheeling.

the scouts jeeps and broncos get by on the normal stuff....

but what I call normal most people are never going to do.


all that said running a 2 bbl on it and a jet kit the ol 302 would likely do ok as long as it was lightly loaded .

but running with Ecoboost....that is the ticket.

Eric got by with a loaded for bear 3.0.

I was thinking more like cobbling togther as in being roadside\trailside and either getting it going or walking.

I once used a bottle cap to jam open a choke linkage..cant do that if a coolant sensor fails...

that kinda stuff

 

[Snoranger]

I was thinking more like cobbling togther as in being roadside\trailside and either getting it going or walking.

I once used a bottle cap to jam open a choke linkage..cant do that if a coolant sensor fails...

that kinda stuff

95%+ of EFI issues just set check engine lights and the vehicle keeps running. When a sensor goes bad, the computer just reverts to an “unknown” state and ignores the bad data. EFI has been around for 40+ years, they’ve figured a few things out. It’s not 1984 anymore.

 

[rusty ol ranger]

95%+ of EFI issues just set check engine lights and the vehicle keeps running. When a sensor goes bad, the computer just reverts to an “unknown” state and ignores the bad data. EFI has been around for 40+ years, they’ve figured a few things out. It’s not 1984 anymore.

Im just saying

 

[Snoranger]

Im just saying

We just don’t want him stalling on a little hill like this on the next vagabond trip.

 

[85_Ranger4x4]

We just don’t want him stalling on a little hill like this on the next vagabond trip.

View attachment 133452

Don't worry, I will be headed back the way we came.