Thinking of one for my 2000VDP. Anyone try one?

 

Are you talking about one of those scam things with the blinky lights that plugs into your OBD port?

 

Stage 2 Performance Chip Module OBD2 For Jaguar - Performance Chip Tuning

 

If you decide to try it let us know how it goes, but so far these things have all been in the "snake oil" category.

 

Yep, snake oil.

 

 

I'm thinking snake oil. Their claims are pretty impressive: "Acceleration: Faster 0-60 times Fuel Economy: Up to 2 MPG Increase Horsepower: Up to 30HP Increase Torque: Up to 28.6 ft·lbs added torque Throttle: Up to 50% Better throttle response." What is 50% better throttle response?

When I built my FFR Roadster with a '99 Ford Cobra engine, I sent the ECU to SVT Performance for an ECU reprogramming. This is what the vast majority of builders did. Main reason was to flash out cats and EGR. (Titled as a '65 so didn't have to meet emissions.) Came back with five programs mode controlled by a dial. Modes included: valet (limit RPM to 3000); regular gas; premium gas: burnout box (floor it and revs won't go over a set level, works great with a line lock on front brakes) and launch control (floor it, holds RPM at a set level until clutch released). Can't remember if they made any claims of increased horsepower. If there was, it wasn't a lot. They increased redline on theory the engine can handle more than the factory redline, but that doesn't increase horsepower. They might have changed some things based on non-stock air intake and headers. Again, so long ago I can't remember.

 

Best way to get a more powerful X308 is to 'slip into the XJR'. (sell yours and buy a SC XJR)

Jaguar/Ford has already got most of the power you will see from a normally aspirated engine!!