I’m not claiming they didn’t test it, but it’s extremely unlikely that it would pass OE engineering requirements. If it could, it would have been much cheaper and easier for Ford engineering to just increase the 5.0’s displacement to 5.2 and install a supercharger instead of developing the 5.2 Predator. Also note that they do not have the confidence in this kit to cover it under the factory powertrain warranty. I reviewed the warranty info (attached); any powertrain issues related to the kit are only covered for 3/36 through Ford Performance. They also have a lengthy list of exclusions and scenarios that can void the warranty, including towing.I dont understand how you can undermine an entire company's engineering effort that went into making this product. Ford performance DIRECTLY works with Roush to develop this.
Do you not think they have engine dyno's where their product is durability tested for hours? Also, full powertrain dyno's where it's not just the engine, and the transmission and axles connected to the dyno to test out this 700 hp. If somethings going to break, it's going to be the weakest link.
You also disagreed with my opinion on another thread where I thought the 5.0L would be a better application in the Raptor.
I am all about choice, and the 5.0L should absolutely be an option the raptor. The buyer should be able to choose between either the 3.5 HO or the 5.0L. This opens up a better solution to the noise complaints of the v6, and also fixes the 5.2L high cost and markup issues that the R will suffer.
Offering the 5.0 in the Raptor would make it less exclusive; you can get any other F-150 with a 5.0. Both performance and fuel economy would be degraded; it has significantly less torque than the 3.5, which is not suited to a heavy truck on 35’s. Basically the detriments far outweigh the only subjective improvement, which is the sound of the exhaust. Exhaust sound is now essentially a non-issue on Gen 3 with the new exhaust design.