I wanted to give an update after living with the Diablo inTune tuner for ten months. When it was new I played with several tunes but settled on the Diablo Tune using 93 octane. There was a noticeable improvement in throttle response and a slight increase in steady-speed mileage. I refined the tune by adding 20% to the throttle boost and 500 rpm to each of the 1-2 and 2-3 shift points. The truck ran like this for six months and the new feel was fun.


But after awhile I wanted a bit more. The Hemi is pretty soft under 2000 rpm and low speed driving around town required downshifting to get moving. Instead of toggling the shift lever I decided to change the automatic shift points. I went pretty aggressive, setting the shift points for both 1-2 and 2-3 at 2000, 2500, 3000, 4000 and 5000 rpm. This really woke the truck up when driving around town, automatically keeping the engine in the power band and requiring a lot less throttle to get the acceleration needed out of stops in particular. This last refinement has made the R/T much more fun. If you have the means I highly recommend it.







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What did that do to your city MPG( target shift points)? And did the intune give you the ability to adjust the TORQUE MANAGEMENT settings?

 

There was no clear difference in overall mileage although I expected the mpg to go down. Anyone who has actually recorded mpg for a lengthy period knows that it is usual for the mpg at consecutive fillups to differ from 1-3 mpg anyway. I have recorded mpg on all my vehicles for over 40 years, believe me it is tough to determine any small differences.

The torque management is automatically controlled with the inTune, there is no end user adjustment:
"The Diablosport performance tunes are designed to all but eliminate the factory torque management to put more of your engine's power directly to the ground. No need to select it in the Adjustable Parameters, it's already built into the tune!"



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Did you have the airbag light issue too? Thats the only issue I've heard of with it. Would be great if its resolved.

 

Having tuned many, many vehicles, this is what I am most skeptical about Diablo products. Whenever I have removed TQ Man from a vehicle it makes a night and day difference in power delivery and 1/4 mile times. I have yet to see substantial increases from diablos claim that they reduce/ remove it. I have personally disabled it 100% from my D and it delivered almost violent launches. However the vehicle goes into " limp home" after 1 launch so by-passing the PCM isn't viable. Thanks for the update, I'll just wait until a tuning program is released with full access.

[QUOTE=GotRPM;3109810]There was no clear difference in overall mileage although I expected the mpg to go down. Anyone who has actually recorded mpg for a lengthy period knows that it is usual for the mpg at consecutive fillups to differ from 1-3 mpg anyway. I have recorded mpg on all my vehicles for over 40 years, believe me it is tough to determine any small differences.
The torque management is automatically controlled with the

 

I have the Diablo inTune and have been trying to solve the same problem.


Can you please elaborate or clarify this statement...there are only two shift points, but there are 5 rpms cited: "I went pretty aggressive, setting the shift points for both 1-2 and 2-3 at 2000, 2500, 3000, 4000 and 5000 rpm."


Thanks-
Frank

 

The shifpoints itself are also divided into % of Accelerator position. I don't have the intune up but I think there are 15%, 25%, 40% etc. where you could set the RPM accordingly.

I'm really happy with my Hemifever tune and the massively reduce TQ management. It shifts a lot faster and harder when needed and the power is also better (feelingwise) than the Diablo tunes... I also had the MIL coming up with the first Hemifever tune. It was one of the pressure sensors which was crying because with the reduced TQ management we were outside of the allowed specs... We had to reduce it a little bit but now it's good.

 

No MIL or airbag lights, in fact zero issues with the inTune. I never played with the tire sizes (no reason to) - that change was known to throw a light.


As stated above, the upshifts are divided by % of throttle input. They are slightly different between the 1-2 and the 2-3 upshift points, but are close.

Torque management is there for a reason, to preserve the transmission. Removing it entirely would not be a wise idea IMO particularly if the owner drives aggressively much of the time. A broken transmission would probably not be covered under warranty. And no comments about no trace left of the tune - there is a trace remaining and dealers are not stupid. Any tune has the potential to void the warranty, the owner just has to take that responsibility if he/she wants more power.


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I'm going to have to call the BS flag on removing TM 100%. I don't think even the guys at Eurocharged or Paramount have successfully disabled TM 100%. Not sure whom you're trying to fool...

 

Should have been more specific. I disabled the ABS module and pulled the TC fuse. Just as you stated the boys haven't been able to remove TM via a PCM Alteration not because of programming limitations but because drivability issues and of coarse a butt load of dash lights. This was my exact point when Diablos advertising makes you believe that TM has been removed and or greatly reduced. As for the FEAR that removing TM will grenade parts and bring the Apocalypse all I can say is we never needed it for the last 100+ years of automotive history.