A Cummins swap into a 2008 Ford F250 is a significant undertaking. This guide addresses common questions and concerns regarding this conversion, offering insights and solutions for a successful swap.
Electrical Considerations for a 2008 F250 Cummins Swap
Electrical systems require meticulous attention during a Cummins swap. Avoid starting the engine without the key if the truck’s computer is powered up. The Ford PCM (Powertrain Control Module) has an anti-theft system that will lock the computer if it detects starter activation without the proper security sequence. This lockout necessitates a dealership visit for unlocking. Consider replacing battery cables for reliable starting power.
Power Steering Options
The stock power steering pump can be retained, but a GM power steering pump offers a cleaner installation alternative. Researching compatible GM pumps is crucial for optimal performance.
4BT Cummins Engine Assessment and Preparation
Before proceeding with the swap, assess the 4BT Cummins engine’s condition. Fuel connection and turbo installation are essential for proper testing. While a turbo isn’t required for initial idle and low-RPM testing, it’s crucial for achieving desired performance levels. Cylinder washing can be performed if necessary.
Turbo Selection for a Cummins-Swapped F250
For reliable highway cruising with a ZF6 transmission, a single turbocharger is recommended. The stock HX35 turbo (or a Chinese clone) is a viable option for achieving desired power levels while accommodating future AC installation. While higher-performance turbos exist, the HX35 provides a balance of performance and reliability for this application.
Fabrication Requirements: Downpipe, Intercooler, and Piping
Custom fabrication is necessary for the downpipe, intercooler piping, and turbo piping. Off-the-shelf solutions are not readily available for this specific conversion. Referencing existing build threads and online resources can provide valuable insights and visual guidance for fabrication.
Intercooler Piping for DCS Kits
When using a DCS (Diesel Conversion Specialists) kit, custom intercooler piping fabrication is still required. Consult DCS documentation or online forums for specific requirements and potential solutions.
Radiator Options for a Cummins Swapped 2008 F250
While Mishimoto offers high-quality radiators, budget-conscious alternatives exist. Radiators Express provides comparable options at a lower price point. The stock radiator from a 6.4L Powerstroke equipped truck is significantly larger than the second-generation Dodge radiator and can often suffice for this conversion.
