Diablo Programmer

[L2C]

Does anyone have this on their H2? If you do can you let me know if you got any improvements? Thanks

[05h2sut]

I have the Predator - upgraded firmware using the regular fuel settings -

BIG difference in shift and performance - no lag, firm shifts, seems to have much more low end torque.

Bought it used from a member on here - well worth it.

-Dave

[SummitUp]

The Diablo Predator offers the most options and is the best IMO. Also I believe it's the only one that allows disabling Torque Management. Another plus is Diablo can create custom tunes which they can email to you and you can then upload the tunes to the Predator with your PC. Great support on their forums as well.

The 93 octane stock tune made a huge difference in the performance of my H2 running on 85 octane fuel (that's right, 85 octane fuel!), but then I run at 9000 ft. elevation and only have 50-60% of the HP you guys have at sea level!

Do a search for "Diablo Predator," it's been discussed numerous times on these forums.

[05h2sut]

Never dawned on my to try the 93 octane tune on lower octane fuel. Something to do this aft

[SummitUp]

Originally Posted by 05h2sut

Never dawned on my to try the 93 octane tune on lower octane fuel. Something to do this aft

05h2sut: BAD IDEA!! I can get away using the 93 octane tune with low octane fuel because of the altitude I live at. Octane requirements become reduced at higher altitudes. Your at sea level (Rhode Island) and running the 93 octane tune on low octane fuel could result in pre-ignition/detonation with can damage your engine. That's why Diablo has a warning/disclaimer in the user manual about not programming the 93 octane tune on lower octane fuel.

For an explanation, scroll to the bottom of this Wikipedia article and read the section titled "Regional variations."

[tomp]

To add to SumUps comments, running the 93 program will more than likely put your ECM into Knock Retard mode and you won't even know it. Stick with the program for the fuel type you'll be using.