I keep seeing all these different tuners in Europe on the TD5's ie; Stomturning I was wondering if there is anything like that in the United States?

 

 

There was a member here a couple months ago in Houston Tx, he said his company could, but I've yet to see anything else about it.

 

Tuning is really only viable and beneficial to the Diesel. Tuning a big naturally aspirated V8 with no variable valve timing or advanced electronics wont net you squat for performance. And any real tuner will tell you the same.

You might eek out 4-5hp or something negligible with changing the timing advance and leaning out fuel mixtures but it isn't worth it in the long run

 

But you can make the engine noticeably more responsive with more timing at lower rpm's.

 

I have tuned a lot of Chevy gas V8's . Because of the size, torque, and driveline (weak trans and rear gears in the cars) they put a lot of torque management, and they way over richen in PE (80% + WOT) mode. Tuning them gets big improvements because you pull the TM off and change the AFR. I have monitored the Disco AFR and they do not go overrich at WOT, and I seriously doubt they put TM on them because they just don't make enough torque (compared to a 5.7 Chevy). I doubt you could get much out of a Disco. If you are curious you can run the torque app and monitor AFR via 02 sensor voltage and spark advance - you will see they don't pull much for TM or AFR change.

 

This guy could probably give us more info if he was allowed to: https://www.linkedin.com/in/tim-beattie-4012384b/