Jump to content

Recommended Posts

Posted
On 12/4/2017 at 6:15 PM, Sierra Jon said:

Does anyone know the nature of the update that came out on 12/4/2017?

I've updated my unit but haven't run it in the truck yet.

Sent from my Pixel XL using Tapatalk
 

with your tune did you notice how much of a difference it made while pulling your camper? i understand i makes normal  drivability better I’m looking for better performance while pulling also. Another question if you don’t mind, did you get a custom tune from Lew or just using the programmer? 

Posted
with your tune did you notice how much of a difference it made while pulling your camper? i understand i makes normal  drivability better I’m looking for better performance while pulling also. Another question if you don’t mind, did you get a custom tune from Lew or just using the programmer? 
As far as towing goes it's not that different. Supposedly Diablo claims 20-30 HP but I don't know what it actually is. Like you said though, driveability/real life driving is a huge improvement. Responsiveness, shifting, AFM delete etc.

I didn't due the custom tune from Lew. Just the canned 91 tune on the i2 with firm shift. No regrets!!
  • 1 month later...
Posted

Hello all, I’ve been “enlightened” to the say the least about the Diablo tuners. I’ve always thought if it wasn’t Black Bear it was subpar lol. My current 2015 Silverado 5.3L 6spd 3.42 rear end has me at whits end with the low speed gear hunting and lugging around when I should be getting instant acceleration. 

 

Aftwe reading this thread I’ve started looking at the I3 and the Predator 2. It seems like the only benefit the I3 has is it can take custom tunes but the Predator has a tow tune. Anyway, my main question: is everyone in agreement that the basic issues are taken care of with the Diablo (lugging and gear hunting)? I’m not the most tech savvy but I could handle the basic functions of a tuner as long as there’s no formulas for fine tuning lol. I just want this truck to be more smooth and responsive as a daily driver. 

Posted

Difference between a canned tune and a custom tune is like the difference between a crescent wrench and a box end wrench. They both get the job done but one is better suited for the job.

I’ve got a canned diablo tune on my silverado and it solved 75% of the transmission issues. I think a custom tune would take care of the rest but I’m gonna wait on that until I get headers.


2014 z71 LTZ
Volant Intake
Borla Exhaust
Diablo
Bilstein 5100
Rough Country Level

  • 1 year later...
Posted
On 12/26/2016 at 9:10 PM, Sierra Jon said:

I'm loving mine so far. Haven't played too much yet. Only installed the 91 tune and recalibrated for tire size.

 

I do wish there was a complete exploded view of the menu with short descriptions of each parameter online. (Update: I did find the online parameters list and that is helpful)

 

I thought I read you could adjust the mph of when the AFM turns on with the Diablo but so far I only found an on/off option. I'd like to adjust it to 50 mph or higher.

 

Sent from my Nexus 6 using Tapatalk

Can you send me a link where u found parameters list?

  • 3 weeks later...
Posted

For anyone interested in a hand held tuner, this is a great topic to read, lots of really good information on various settings, and impacts on drivability, mpg, etc.. After reading this and other forums, my questions are:

 

1. Can someone explain the differences between Predator 2 - 7271, 7220, and 7202. I'm seeing conflicting information.  For example Amazon says 7202 is compatible but Summit Racing site says it's not and the Diablo site only shows 7271 when I use 'find parts for your vehicle'?  

 

2. As we all know, the stock 6.2 is recommended to use premium fuel (91/93).  Will a 'canned' Diablo tune for 87 actually increase performance/drivability over the stock tune? I'm trying to figure out why you would want to put in an 87 tune into an engine that comes with a stock tune that recommends 91/93 to begin with and not be going backwards in terms of performance/drivability/MPG, etc..  If this is the case however it does seem to me like it could be a win/win if you get the improved tune and still able to us 87. Around here 93 is about 90 cents per gallon more than 87 so this means after 425 gallons the tuner would actually pay for it's self right?  Or perhaps I'm looking at it all wrong..

 

Please no comments on how a custom tune is better, etc...  I realize a custom tune may be better in various ways but for different reasons,which I won't get into here, I'm set on a handheld programmer and leaning towards the Diablo.  Would love to hear any feedback from those with a Diablo, which settings you have and why.

  • 3 weeks later...
Posted




 
2. As we all know, the stock 6.2 is recommended to use premium fuel (91/93).  Will a 'canned' Diablo tune for 87 actually increase performance/drivability over the stock tune?


I'm actually wondering this myself. I had a '14 with the 5.3 and now I have a '17 with a 6.2 that I haven't installed my i2 canned tune yet. I will do it when I change tire size so wondering if my HP will increase or not.


Sent from my Pixel 4 XL using Tapatalk

Posted
20 hours ago, Sierra Jon said:


 

 


I'm actually wondering this myself. I had a '14 with the 5.3 and now I have a '17 with a 6.2 that I haven't installed my i2 canned tune yet. I will do it when I change tire size so wondering if my HP will increase or not.


Sent from my Pixel 4 XL using Tapatalk
 

 

On your 17, does it have the 8spd that's locked out from the factory like my 18? 

 

I'm wondering if it's worth putting a tune on when you cant change anything with the trans. Of all my tunes the transmission made the biggest drivability difference.

Posted
On your 17, does it have the 8spd that's locked out from the factory like my 18? 
 
I'm wondering if it's worth putting a tune on when you cant change anything with the trans. Of all my tunes the transmission made the biggest drivability difference.
Good question... Agree completely. I didn't know they even did that. It is an 8 speed.

The tune on my '14 made a world of difference on the tranny.

Sent from my Pixel 4 XL using Tapatalk

Posted
4 minutes ago, Sierra Jon said:

Good question... Agree completely. I didn't know they even did that. It is an 8 speed.

The tune on my '14 made a world of difference on the tranny.

Sent from my Pixel 4 XL using Tapatalk
 

Quick Google says the 17 6.2 8spd has the tcm locked as well. So you wont be able to tune it.

 

Also I believe the 17+ use a different I2 tuner as well. Your 14 tuner might not work on it. 

 

But if you do the canned tune let me know if it's worth buying

 

I havent seen anyone with a 17+ 6.2 get a tune and comment about it with lack of transmission tunning

Posted



Quick Google says the 17 6.2 8spd has the tcm locked as well. So you wont be able to tune it.
 
Also I believe the 17+ use a different I2 tuner as well. Your 14 tuner might not work on it. 
 
But if you do the canned tune let me know if it's worth buying
 
I havent seen anyone with a 17+ 6.2 get a tune and comment about it with lack of transmission tunning


Me neither. Man that blows. I was going to install when I replace my tires next summer/fall. Has anyone contacted Diablo? They are pretty responsive.

Sent from my Pixel 4 XL using Tapatalk

Posted
2 minutes ago, Sierra Jon said:


 

 


Me neither. Man that blows. I was going to install when I replace my tires next summer/fall. Has anyone contacted Diablo? They are pretty responsive.

Sent from my Pixel 4 XL using Tapatalk
 

 

If you already have the tuner. Go ahead and try tuning it... 

But according to the website I need the in tune platinum.

 

But I tuned my uncle's 17 5.3 with the same tuner he used on his 16. Diablo intune I3 I believe 

Posted

https://www.diablosport.com/latest-releases/2017-gmc-chevrolet-silverado0sierra-gas-trucks-now-supported-performance-mileage-towing-tuning/

This (old) article suggest the I2 will work with the '17. I didn't want to install it yet because I'm under my CPO warranty period. But...... I just may. I'll repost if I do.

Thanks,
Jon

Sent from my Pixel 4 XL using Tapatalk

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Latest Articles

  • Posts

    • No such thing as regenerative braking on a pure ICE vehicle.     Regenerative braking is the re-capture of energy from electric motors and stores it in the battery pack.  So hybrids, PHEV and EVs have regenerative braking.     What you are seeing is the charging system changing modes is all.  Its likely entering charge mode for some sort of reason is all.  All of the charging modes will be listed below.   As for L10 vs D.  L10 turns off automatic grade braking.  L10 puts you in control of grade downshifts where in D it will automatically do it based on brake pedal position and other factors.  Otherwise L10 and D drive exactly the same aside from that one aspect.    Battery Sulfation Mode The BCM will enter this mode when the interpreted Generator output voltage is less than 13.2 V for 45 minutes. When this condition exists the BCM will enter Charge Mode for 2–3 minutes. The BCM will then determine which mode to enter depending on voltage requirements.   Charge Mode The BCM will enter Charge Mode when ever one of the following conditions are met:   Windshield wipers are ON for more than 3 s. Climate Control Voltage Boost Mode Request is true, as sensed by the HVAC control module via serial data. High speed cooling fan, rear defogger, and HVAC high speed blower operation can cause the BCM to enter the Charge Mode. The estimated battery temperature is less than 0°C (32°F). Battery State of Charge is less than 80%. Vehicle speed is greater than 145 km/h (90 mph) A current sensor malfunction exists. System voltage is determined to be below 12.56 V When any one of these conditions is met, the system will set targeted generator output voltage to a charging voltage between 13.9–15.5 V, depending on the battery state of charge and estimated battery temperature.   Fuel Economy Mode The BCM will enter Fuel Economy Mode when the estimated battery temperature is at least 0°C (32°F) but less than or equal to 80°C (176°F), the calculated battery current is less than 15 A and greater than −8 A, and the battery state-of-charge is greater than or equal to 80%. Its targeted generator output voltage is the open circuit voltage of the battery and can be between 12.5–13.1 V. When fuel economy mode is active, the generator is not charging, only maintaining open circuit battery voltage. The BCM will exit this mode and enter Charge Mode when any of the conditions described above are present.   Headlamp Mode The BCM will enter Headlamp Mode when ever the head lamps are ON (high or low beams). Voltage will be regulated between 13.9–14.5 V.   Start Up Mode When the engine is started the BCM sets a targeted generator output voltage of 14.5 V for 30 s.   Tow/Haul Mode (if applicable) Pressing the Tow/Haul Mode button located on the center stack, the vehicle system voltage is raised and the remote (non-vehicle) battery will be charged. Having the headlamps on will raise the system voltage and if the Tow/Haul button is applied it will not serve any purpose. The voltage is regulated between 13.9-14.5 V.      
    • Hello from Australia Just sharing that there is now a way to delete the active shutters entirely with just a plug in module. Opens up tons of room to light bars etc.
    • I have an observation and a question... 1) I watch the voltage closely because I have had to dial in the cut-in/cut-out voltages of the battery separator to my camper.  The "smart" charging drives me nuts.  Anyway, I noticed that when coasting for a while, and especially if lightly using the brakes (though not necessary), the voltage goes up from mid/high-13 volts to mid/high-14 volts.  Then it drops back down after stopping or going again.  Consistently!   The only explanation I can come up with is REGENERATIVE BRAKING!  Well, maybe that's a little bit of an exaggeration, but it's certainly free extra battery charging.   2) Driving on mountain roads I will use L and vary the max gear.  Things straighten out and I end up in L10.  Sometimes I leave it there for a while.  Is there any difference between L10 and D?   
    • Do you think this width might affect the chalk test with a higher pressure closer to 65psi? I think lowering the pressure makes sense to get the tread to lay flatter
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...