460 EFI (88-97) F-Series - 460 Ford Forum
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post #1 of 18 (permalink) Old 06-06-2019, 07:48 PM Thread Starter
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460 EFI (88-97) F-Series

Hey There everyone. New user...well sort of, lost my old password and email (4speed390) and now I had to make a new one. So I'm back after a long hiatus. Anyway got a few questions as I am quite excited to get back in to the 385 series world. First ones are these:

I am looking at buying a 88-97 F250 w/ a 460 very soon, and I wanted to know the common gripes with them, or any average mileage before needing a rebuild, and anything I should be looking for when I go to purchase?

Along with that, I wanted to see if anyone was making a good EFI intake for them, and what kind of other performance mods I could do whilst still getting it through emissions, which isn't that strict in PA for trucks that old.

Finally any additional information you can provide (or if you know of one that is available, it seems they are pretty hard to come by around here in Philly.) I have found one, but am waiting for more information on it.

Any help is appreciated.

Thanks,
Jim
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post #2 of 18 (permalink) Old 06-06-2019, 07:52 PM Thread Starter
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Has anyone heard of these guys:


https://460efiguys.com/460-efi/


seems interesting
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post #3 of 18 (permalink) Old 06-06-2019, 08:27 PM
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Cool

With proper bowl work and intake runner exit work the EFI 460 platform can make excellent TQ and HP. 525 / 400 and still work with the OEM SD or Cali MAF EFI...


See this link to our 50 states emissions compliant and SD compatible crate engine combination. Feel free to use as a guide.


https://www.facebook.com/pg/PpamLLC/...49921202052229

Cam specs are custom and designed for emissions compliance, SD compatibility and good towing performance.

Video of typical crate combo on dyno using carb adapter.



https://www.facebook.com/PpamLLC/vid...7984679108957/





SJ
used 2b RHP


Scotty J. "AKA" The "Mad Porter"
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Last edited by The Mad Porter; 06-06-2019 at 08:31 PM.
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post #4 of 18 (permalink) Old 06-06-2019, 08:30 PM
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Find a California version, it will already be Mass Air Flow rather than Speed Density. That will save some headaches and fabrication costs.

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post #5 of 18 (permalink) Old 06-06-2019, 08:32 PM
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Cool

Quote:
Originally Posted by 390-4speed View Post
Has anyone heard of these guys:


https://460efiguys.com/460-efi/


seems interesting

I've been speaking with russell about his product line and am going to incorporate some products with our offerings.


SJ



Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
http://www.facebook.com/Ppamllc
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post #6 of 18 (permalink) Old 06-06-2019, 09:33 PM Thread Starter
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So, if I cannot find a CA version with MAF...I forget how SD will be more difficult to tune. Were there any other years that came with MAF? I am only looking for small upgrades as of now. Are the F3TE heads the only ones I can use for fuel injection?
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post #7 of 18 (permalink) Old 06-06-2019, 09:44 PM
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Quote:
Originally Posted by 390-4speed View Post
So, if I cannot find a CA version with MAF...I forget how SD will be more difficult to tune. Were there any other years that came with MAF? I am only looking for small upgrades as of now. Are the F3TE heads the only ones I can use for fuel injection?
To keep the existing IV computer you will need a Moates Quaterhorse and either learn how to change the tables or pay someone to do it for you.

Keep in mind that SD is not adaptive to changes, it is just an approximation based on a pressure sensor and default calculations from set lookup tables. One of the reasons why large elevation changes are problematic for SD.

I partially mitigate elevation changes in mine by having two different fuel types.

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post #8 of 18 (permalink) Old 06-06-2019, 09:46 PM Thread Starter
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Do they make compete kits to swap computers harnesses and MAF sensors?
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post #9 of 18 (permalink) Old 06-06-2019, 09:49 PM
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Yes, for a few grand.

The mad porter probably has a more cost effective option with a crate engine.

Converting difficulties depends on how the engine is balanced and if it already has options or the mounts for a trigger.

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post #10 of 18 (permalink) Old 06-07-2019, 07:43 PM
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Quote:
Originally Posted by 390-4speed View Post
So, if I cannot find a CA version with MAF...I forget how SD will be more difficult to tune. Were there any other years that came with MAF? I am only looking for small upgrades as of now. Are the F3TE heads the only ones I can use for fuel injection?
I need to add a tuner to my 95 460/528 stroker for my motorhome.
I looked at Moates Quarterhorse and the TwEECer.
With the Quarterhorse you get the tuner from one source, the software from another source and then pay another person to write the tune.
With the TwEECer you purchase the tuner and then down load the free software from from the same source. I elected to pay Mike Glover, the designer of the tuner and software, to write the tune.
What better than the designer to write the tune. Mike was great to work with and his fee was $250.00.
When returning from snow birding, I stopped in the Huston, TX area and called Mike and took him and his bride out to lunch. It was great talking tuning with Mike.

Richard
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Last edited by RLS7201; 06-07-2019 at 07:49 PM.
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post #11 of 18 (permalink) Old 06-07-2019, 07:59 PM Thread Starter
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That sounds like a good plan...one question, which software is Mikes? TwEECer or Quarterhorse?
Quote:
Originally Posted by RLS7201 View Post
I need to add a tuner to my 95 460/528 stroker for my motorhome.
I looked at Moates Quarterhorse and the TwEECer.
With the Quarterhorse you get the tuner from one source, the software from another source and then pay another person to write the tune.
With the TwEECer you purchase the tuner and then down load the free software from from the same source. I elected to pay Mike Glover, the designer of the tuner and software, to write the tune.
What better than the designer to write the tune. Mike was great to work with and his fee was $250.00.
When returning from snow birding, I stopped in the Huston, TX area and called Mike and took him and his bride out to lunch. It was great talking tuning with Mike.

Richard
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post #12 of 18 (permalink) Old 06-07-2019, 08:24 PM
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I had forgotten about tweecer, although I have the software.



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post #13 of 18 (permalink) Old 06-07-2019, 09:00 PM
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Cool

Maybe I need to clarify.

The engine combination I outlined above at 466 to 472" works with OEM SD ECU programming. An adjustable FPR to mitigate the lean condition at WOT and heavy acceleration out of closed loop is helpful along with 26# injectors if you are at or near sea level. Some additional initial timing gets the total timing closer to ideal. The fuel trim window will take care of closed loop operation.

Is there room for improvement? Yes.
Is it absolutely necessary? No.

The OEM 33 gph fuel pump(s) and 24# injectors are at their limit at 365 ish hp which is about what the build makes as installed.
Quantum fuel systems makes drop in 255 lph fuel pump modules.


In certain heavyweight Class A and C MH applications the OEM 460 does not make enough throttled torque to move the vehicle in closed loop so WOT or near WOT operation is in the high 13's to low 14's AF which over time hurts exhaust valves and seats. Not to mention cooking the exhaust manifolds lol.

If you improve throttled torque the ecm will stay in closed loop longer with an increase in fuel economy. We have some clients reporting between 12 and 13.7 mpg in F250 4x and F350 applications.

If you want to push beyond the power the linked combination provides then a custom tune is going to be necessary.

We have several 545" EFI combinations that make near 500 hp and over 625 tq in a very similar operational window as the OEM engine does.
Custom tune definitely required.

With a bit of runner work at the exits the OEM intake is pretty good. Long runners and smallish cross section make for good torque both part throttle and at WOT.

Hope this helps clarify.


SJ
used 2b RHP


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Scotty J. "AKA" The "Mad Porter"
"EMC 2006" 3rd place finisher
Ported BBF iron head specialist & Aluminum heads from all sources.
Custom ground cams
See our products in the Vendor for sale section
Customized crate engines
ParklandAutoMachine.com
R-H-P.biz
"Parkland Performance Auto Machine" Formerly RHP
(253)-988-6648
http://www.facebook.com/Ppamllc

Last edited by The Mad Porter; 06-07-2019 at 09:05 PM.
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post #14 of 18 (permalink) Old 06-08-2019, 09:44 AM
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post #15 of 18 (permalink) Old 06-08-2019, 06:39 PM
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Quote:
Originally Posted by 390-4speed View Post
That sounds like a good plan...one question, which software is Mikes? TwEECer or Quarterhorse?
Mike is the designer of the TwEECer tuner and the software to tune and monitor it. Every thing come from one person.
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