Mind blown at '90 460 EFI setup
Thread Starter
|
Trailering
Joined: Nov 2016
Posts: 20
Likes: 0
Mind blown at '90 460 EFI setup
So, for some reason, it was always in my mind that the 460 had throttle body fuel injection. No idea why. I've had the truck for years but I've never had to think about the fuel system that hard! My mind was blown when I popped the head to inspect the IAC valve and was met with two fuel rails and eight port-mounted injectors in my face.
I know that they switched the 460s from carburetors in the late 80's, I just always assumed that they went to throttle body injection like other cars of the time. My question is, was the 460 a port injection system since day one of it being converted? I'm genuinely half suspecting that it was a dealer option in 1990 or an aftermarket kit. Thoughts?
I know that they switched the 460s from carburetors in the late 80's, I just always assumed that they went to throttle body injection like other cars of the time. My question is, was the 460 a port injection system since day one of it being converted? I'm genuinely half suspecting that it was a dealer option in 1990 or an aftermarket kit. Thoughts?
Posting Guru
Joined: Mar 2016
Posts: 1,534
Likes: 1
From: Missoula
So, for some reason, it was always in my mind that the 460 had throttle body fuel injection. No idea why. I've had the truck for years but I've never had to think about the fuel system that hard! My mind was blown when I popped the head to inspect the IAC valve and was met with two fuel rails and eight port-mounted injectors in my face.
I know that they switched the 460s from carburetors in the late 80's, I just always assumed that they went to throttle body injection like other cars of the time. My question is, was the 460 a port injection system since day one of it being converted? I'm genuinely half suspecting that it was a dealer option in 1990 or an aftermarket kit. Thoughts?
I know that they switched the 460s from carburetors in the late 80's, I just always assumed that they went to throttle body injection like other cars of the time. My question is, was the 460 a port injection system since day one of it being converted? I'm genuinely half suspecting that it was a dealer option in 1990 or an aftermarket kit. Thoughts?
Junior User
Joined: Feb 2017
Posts: 60
Likes: 0
Yes it was port injection from day one. 88 was the first year the 460 had EFI and it has port injection. As for the other motors I couldn't tell you, but I can tell you early 90s 5.0s were the same. Seeing as 87 (I think?) was the first FI year for the 5.0, I would imagine it was port form day one also
Posting Guru
Joined: Mar 2016
Posts: 1,534
Likes: 1
From: Missoula
So Ford trucks never had TBI? That would explain why I've never heard of one.
Junior User
Joined: Feb 2017
Posts: 60
Likes: 0
After looking into it no ford truck ever had TBI. TBI was only used in cars
Trending Topics
Thread Starter
|
Trailering
Joined: Nov 2016
Posts: 20
Likes: 0
Alrighty then. Thanks, guys! I'm pretty darn happy with that info. Although it means that when it comes time to clean 'em out, it'll be a biiiiiit more spendy 
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
More Turbo
Joined: Apr 2014
Posts: 687
Likes: 20
EFI was an option on 302 trucks in '85 and all 1986 302 trucks are EFI.
The 351 went EFI in 1988 along with the 460.
I have no interest in the 300 so can't say with that one.
The 351 went EFI in 1988 along with the 460.
I have no interest in the 300 so can't say with that one.
Fleet Mechanic
Joined: Sep 2003
Posts: 1,716
Likes: 15
Ford's TBI, called "CFI", for Central Fuel Injection, came out on the 1980 Lincoln Town Car and Mark VI 302's, run by EEC-III. In 1983, the full-size Ford and Merc got it. In 1984, they all switched to EEC-IV to run it. 1985 was the last year for CFI. I liked CFI. You could always tell if the injectors were working... just look down the barrels at them! The only thing CFI didn't do, was computer stabilized idle. I had to fiddle with the throttle dashpot/AC idle boost bracket a lot for idle speed setting.
There were a few other cars that had CFI, smaller RWD cars that I didn't pay any attention to.
I have wondered why they didn't add it to the 302 trucks back then. Maybe the cost issue, as it would have made the 302 trucks different than the same trucks with other engines in them (the gas tanks, wiring harnesses, computer, etc. etc.).
Lead Driver
Joined: Feb 2013
Posts: 5,006
Likes: 72
From: Roseville, MN
At the time I thought it was odd that Ch*vy, that had 4bbl carbs on pretty much all of their trucks before, switched to TBI while Ford, that only used 2bbl carbs on most trucks before, jumped up to port fuel injection.
Hotshot
Joined: Jun 2015
Posts: 12,831
Likes: 2,436
^yes. The 300 changed over the same time as the 302. Speed density systems are bank fire while mass air is sequential.
Cargo Master
Joined: Jun 2013
Posts: 3,182
Likes: 15
From: Somewhere n North America
Not that it is 100%, but the 4.9L with injectors (2 Banks, 3 Injectors per Bank, MFI), does not show up in the EVTMs until the 1987 version.
Last edited by vjsimone; Mar 2, 2017 at 07:32 PM. Reason: Adding text
Lead Driver
Joined: Feb 2013
Posts: 5,006
Likes: 72
From: Roseville, MN
What I remember from when I ordered my '85 F-250 new in the fall of '84 was that the only fuel injected engine available for it was the 302. I never really considered the 300, so I can't say 100% that it wasn't fuel injected. But I know the 302 was, and I don't think anything else was in early '85.
(I never really considered the 302 either, I just remember it being pushed at me as a step up over the 2bbl carb 351 that I was looking at, and ended up getting.)
(I never really considered the 302 either, I just remember it being pushed at me as a step up over the 2bbl carb 351 that I was looking at, and ended up getting.)
Thread
Thread Starter
Forum
Replies
Last Post
kwrules
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
5
Apr 12, 2024 06:24 AM
hotrob
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
4
Nov 29, 2006 07:36 AM
77ford460
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
7
Nov 20, 2004 03:53 PM