[B]300 EFI TROPICAL COMPUTER???[/B]
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Freshman User
Joined: Mar 2001
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From: Yeppoon Queensland Austr
[B]300 EFI TROPICAL COMPUTER???[/B]
1. I have a 1988 F150 4.9L EFI engine in my '71 F100. I live in Central Queensland, Australia. Cold never comes here. I've heard of a tropical computer designed for use in warmer climates [Florida etc...] Can anyone enlighten me as to where to find such an item?
2. Would I benefit from a swap to an aftermarket HEI distributor [perhaps Summit or similar], or am I better off sticking with the original unit found standard with the EFI engine?
G.P.
2. Would I benefit from a swap to an aftermarket HEI distributor [perhaps Summit or similar], or am I better off sticking with the original unit found standard with the EFI engine?
G.P.
Tuned
Joined: May 2017
Posts: 414
Likes: 40
From: C-town,MD
I have personally never heard of a computer that is made to just work in warmer climates. Maybe someplace like Brazil, but in the US we travel a lot. I know I would be disappointed if I left a state where it was warm to visit a friend or go on vacation and my truck didn't run correctly. I also wouldn't see the advantage because the purpose of the computer is to compensate for things like temperature, barometric pressure, and altitude.
As far as the ignition system goes, I might upgrade the coil and plug wires, but leave the distributor alone. Your cost to upgrade that would greatly outweigh any benefit you would see.
As far as the ignition system goes, I might upgrade the coil and plug wires, but leave the distributor alone. Your cost to upgrade that would greatly outweigh any benefit you would see.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,722
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From: SE Florida
No there isn't. There are different parts for California vs. 49 states, but that is due to emissions, not warm vs. cold.
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Freshman User
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From: Yeppoon Queensland Austr
Seems it's all a myth then. Thanks for clearing that up.
Regarding the coil and distributor- I'm actually looking for a solution to a larger problem. Whilst the engine produces pretty good mid range torque and start up is instant, I suffer from very doughy acceleration and the idle is almost always erratic. I've advanced the base timing a couple of times with some improvement, but I can't just keep in cranking the distributor around indefinitely. So, I'm keen to hear any advise on ridding myself of sever flat spotting without replacing every component under the hood in the hope that one may be the culprit.
Regarding the coil and distributor- I'm actually looking for a solution to a larger problem. Whilst the engine produces pretty good mid range torque and start up is instant, I suffer from very doughy acceleration and the idle is almost always erratic. I've advanced the base timing a couple of times with some improvement, but I can't just keep in cranking the distributor around indefinitely. So, I'm keen to hear any advise on ridding myself of sever flat spotting without replacing every component under the hood in the hope that one may be the culprit.
Lead Driver
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From: **** hole San Jose ca.
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Freshman User
Joined: Mar 2001
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From: Yeppoon Queensland Austr
I transplanted the engine in 1998 and used the O2 sensor that came with the it. It was very good at first, but steadily became worse. I only travel about 2,000miles per year so I put up with the poor performance for a very long while. It's about time I did something about it.
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Hotshot
Joined: Mar 2013
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From: Phoenix, Az.
Seems it's all a myth then. Thanks for clearing that up.
Regarding the coil and distributor- I'm actually looking for a solution to a larger problem. Whilst the engine produces pretty good mid range torque and start up is instant, I suffer from very doughy acceleration and the idle is almost always erratic. I've advanced the base timing a couple of times with some improvement, but I can't just keep in cranking the distributor around indefinitely. So, I'm keen to hear any advise on ridding myself of sever flat spotting without replacing every component under the hood in the hope that one may be the culprit.
Regarding the coil and distributor- I'm actually looking for a solution to a larger problem. Whilst the engine produces pretty good mid range torque and start up is instant, I suffer from very doughy acceleration and the idle is almost always erratic. I've advanced the base timing a couple of times with some improvement, but I can't just keep in cranking the distributor around indefinitely. So, I'm keen to hear any advise on ridding myself of sever flat spotting without replacing every component under the hood in the hope that one may be the culprit.
Give me a basis to start from. When you swapped it in did you swap Everything from a donor truck? All sensors and wiring? can you pull any codes out of the PCM via a scan tool? If you also fabed up a "check engine" light is it on?
Just at a guess I checked a couple emissions calibration parts lists for 1988 F150, 4.9L, 4X2, regular cab, without hi altitude carb, and without California emissions. Both parts list show it took a MAP sensor. Not a BAP sensor. If the MAP sensor is bad or the vacuum hose to it has leaks it will tell the PCM the wrong altitude it is in. Map sensor part number was E7FZ9F479A. This was replaced by AU2Z9F479A. Still available from Ford.
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