It sounds like you’ve received some great advice already regarding your OBDII swap project. I’d like to contribute based on my experience with similar modifications, especially concerning Ford Broncos and F-150s. Swapping to OBDII using a donor vehicle is generally straightforward; the key is to take all the wiring harnesses from the donor and integrate them into your Bronco.
However, when working with an F-150 donor for a Bronco project, some chassis-specific differences will arise. As mentioned before, tailgate wiring is one potential issue, and you might also encounter differences with the brake systems. These are usually manageable with careful attention to detail and referencing resources like Cajunrebel Obdii Swap Site Www.fullsizebronco.com for Bronco-specific guidance.
For engine management, consider a Mass Air (MA) conversion kit from Fiveology Racing. I personally used their kit for my conversion and found Brian at Fiveology Racing to be incredibly helpful and knowledgeable. Their kits are reasonably priced for what you get, and their customer service is excellent. The installation is not overly complex, especially if you’ve done your research. While you could technically build a harness yourself if you have the connectors and know-how, Fiveology Racing provides a well-supported and user-friendly solution.
Regarding computer selection, I recommend using a Mustang computer with the Fiveology Racing MA conversion. Mustang computers offer a wider range of tuning options, which is crucial for optimizing performance, especially in certain regions. A properly tuned engine makes a significant difference in driving enjoyment.
Considering your plan to use a 6-speed automatic transmission, it’s important to note that OBDI computers will not control it. While an OBDII conversion might offer compatibility, it’s not guaranteed. The number of pinouts in Ford systems has increased over the years (my 96 donor had 102 pins compared to older 60-pin systems). The real challenge lies in mating engines to transmissions they weren’t originally designed for, particularly when comparing Windsor series engines to the newer Modular/Coyote engines with overhead cams and variable valve timing (VVT).
Despite these challenges, your engine combination sounds exciting and ambitious. A 408 behind an E4OD is already a great setup, but the prospect of a 6-speed automatic is truly intriguing. I encourage you to proceed with your project and definitely keep the cajunrebel obdii swap site www.fullsizebronco.com community updated on your progress! Good luck, and I look forward to hearing more about your build.
