Jump to content

K2 Diablo Tune

sdog4127

By sdog4127
in Modifications & Accessories

 Share

Recommended Posts

Sean D Enthusiast

Sean D

Posted
Posted

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

Do you have the link?

  • Replies 114
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

sdog4127
sdog4127

I am planning on putting a spreadsheet together of all parameters so I can easily track what I change and how it performs real world. Not sure when I'll have the time to get this done, but it's my pla

jamoka3
jamoka3

I have been Looking to start a list of anyone running DiabloSport's inTune i2 Performance Programmer - i2030. I'm very Curious to know what others have done/ tried and what results they have received

Sierra Jon
Sierra Jon

So I messed with the i2 some more. I don't know enough about some of the parameters to mess with them (like advance or retard spark etc).  I think what I like most is the 91 tune with 20% throttle bo

DirtyMarcus Enthusiast

DirtyMarcus

Posted
Posted

ive had my E85 and firm shift tune on for a week and love it. I do have one question. At WOT, towards the end of some shifts my truck sounds like it was banging off the rev limiter. RPM's are still climbing but the exhaust sounds like its surging sometimes. The first time it happened I thought it was wheel spin but I didn't feel any. The second time I looked closely at the RPM's and they were steadily climbing and definitely no wheel spin. This only happens for a few seconds when im in the upper band of RPM's. Anyone else experience this?

  • 2 weeks later...
Sierra Jon Enthusiast

Sierra Jon

Posted
Posted (edited)

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

So I messed with the i2 some more. I don't know enough about some of the parameters to mess with them (like advance or retard spark etc).

 

I think what I like most is the 91 tune with 20% throttle boost, AFM on (I think it actually works better now), speed limiter off, 20% firmer shifts at WOT (The 91 canned tune already firms up the shifts so adding the extra 20% was not necessary for partial throttle shifts). Recalibrated for tires. Torque management is still on. It's a daily driver and I can't afford to reduce the life of the drivetrain.

 

Someone on here (maybe a different topic) said their MPG went down considerably after installing a Diablo tune... so I wanted to mention that at one point I modified the "stock tune" parameters and my gas mileage went down the tubes... I don't know what I did but I cleared it out and went back to the 91 and I'm back up to 16-17 ish... I'm still doing a lot of remote starts in the cold weather so it may be better than that. I'm thinking I lost about 2 mpg with the 275/60R20 Duratracs but I'm only at about 70% confidence on that right now.

 

Sent from my Nexus 6 using Tapatalk

Edited by Sierra Jon
  • Like 3
Steeks Enthusiast

Steeks

Posted
Posted

When you got it did you plug it into the computer right away (update) or just open and plug into the truck? Just got mine in the mail yesterday and curious if it was ready from the box.

 

 

Sent from my iPhone using Tapatalk

gone_fishing Enthusiast

gone_fishing

Posted
Posted

When you got it did you plug it into the computer right away (update) or just open and plug into the truck? Just got mine in the mail yesterday and curious if it was ready from the box.

 

 

Sent from my iPhone using Tapatalk

 

I hooked mine up the PC first. This is what Diablo recommends to make sure you have the latest updates.

  • Like 2
gone_fishing Enthusiast

gone_fishing

Posted
Posted

So I messed with the i2 some more. I don't know enough about some of the parameters to mess with them (like advance or retard spark etc).

 

I think what I like most is the 91 tune with 20% throttle boost, AFM on (I think it actually works better now), speed limiter off, 20% firmer shifts at WOT (The 91 canned tune already firms up the shifts so adding the extra 20% was not necessary for partial throttle shifts). Recalibrated for tires. Torque management is still on. It's a daily driver and I can't afford to reduce the life of the drivetrain.

 

Someone on here (maybe a different topic) said their MPG went down considerably after installing a Diablo tune... so I wanted to mention that at one point I modified the "stock tune" parameters and my gas mileage went down the tubes... I don't know what I did but I cleared it out and went back to the 91 and I'm back up to 16-17 ish... I'm still doing a lot of remote starts in the cold weather so it may be better than that. I'm thinking I lost about 2 mpg with the 275/60R20 Duratracs but I'm only at about 70% confidence on that right now.

 

Sent from my Nexus 6 using Tapatalk

 

My mileage was down a little right after doing the 87 performance tune on my Sierra. After a few hundred miles it was closer to normal. I believe the computer get's reset after the tune and has to re-learn everything. This is what I modified:

 

- 87 octane flex tune

- trans tune firm shift

- DOD off

- Idle and park/neutral RPM +50

- speed limit off

- torque management off

 

So far I'm liking the driveability improvements. Definitely holds gears longer at partial throttle angles. Before the tune the tranny would be in 4th gear when driving around 25-30 MPH. Now it won't shift into 4th till about 32 MPH. Seems to hold 1st to 2nd shift till about 2000 RPM (can't recall MPH) which is a little higher then stock. It's not so eager to be in the next gear (kind of like tow/haul mode but not quite as extreme). Now the engine isn't "lugging" at such at low RPM and acceleration is there when you need it.

  • Like 2
Steeks Enthusiast

Steeks

Posted
Posted

Thx guys that's what I figured. Of course my luck the kids have the computer on the glitch have to look into that first I guess. Kids lol

 

 

Sent from my iPhone using Tapatalk

Sierra Jon Enthusiast

Sierra Jon

Posted
Posted

Anyone have luck with the mpg tune

Have not tried it.

 

Sent from my Nexus 6 using Tapatalk

 

My mileage was down a little right after doing the 87 performance tune on my Sierra. After a few hundred miles it was closer to normal. I believe the computer get's reset after the tune and has to re-learn everything. This is what I modified:

 

- 87 octane flex tune

- trans tune firm shift

- DOD off

- Idle and park/neutral RPM +50

- speed limit off

- torque management off

 

So far I'm liking the driveability improvements. Definitely holds gears longer at partial throttle angles. Before the tune the tranny would be in 4th gear when driving around 25-30 MPH. Now it won't shift into 4th till about 32 MPH. Seems to hold 1st to 2nd shift till about 2000 RPM (can't recall MPH) which is a little higher then stock. It's not so eager to be in the next gear (kind of like tow/haul mode but not quite as extreme). Now the engine isn't "lugging" at such at low RPM and acceleration is there when you need it.

How do you like torque management being turned off?

 

Sent from my Nexus 6 using Tapatalk

gone_fishing Enthusiast

gone_fishing

Posted
Posted

How do you like torque management being turned off?

 

I like it. I can tell there is a little more low end response when I need it. This plus the transmission holding lower gears longer helps a lot with acceleration.

  • Like 1
Grjfer Enthusiast

Grjfer

Posted
Posted

My mileage was down a little right after doing the 87 performance tune on my Sierra. After a few hundred miles it was closer to normal. I believe the computer get's reset after the tune and has to re-learn everything. This is what I modified:

 

- 87 octane flex tune

- trans tune firm shift

- DOD off

- Idle and park/neutral RPM +50

- speed limit off

- torque management off

 

So far I'm liking the driveability improvements. Definitely holds gears longer at partial throttle angles. Before the tune the tranny would be in 4th gear when driving around 25-30 MPH. Now it won't shift into 4th till about 32 MPH. Seems to hold 1st to 2nd shift till about 2000 RPM (can't recall MPH) which is a little higher then stock. It's not so eager to be in the next gear (kind of like tow/haul mode but not quite as extreme). Now the engine isn't "lugging" at such at low RPM and acceleration is there when you need it.

Why the idle park/neutral ram increase?

gone_fishing Enthusiast

gone_fishing

Posted
Posted

Why the idle park/neutral ram increase?

 

After being fully warmed up, I always thought the motor idled a tad too low. When in gear at a stop (especially with the AC on) I would sometimes get a light 'shimmy' coming from the motor. RPM's would usually be just a little under 500. With the 50 RPM increase the motor is now idling smoother when in the same situation.

  • Like 3
Sierra Jon Enthusiast

Sierra Jon

Posted
Posted

 

After being fully warmed up, I always thought the motor idled a tad too low. When in gear at a stop (especially with the AC on) I would sometimes get a light 'shimmy' coming from the motor. RPM's would usually be just a little under 500. With the 50 RPM increase the motor is now idling smoother when in the same situation.

Interesting

 

Sent from my Nexus 6 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
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      My post above is the direct reason for my outsized interest in keeping what I have for as long as possible. My memory isn't as short as some. 
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      I don't think so. 😏 Cars? Our experience will diverge there as well. I was buying cars with 200K (1970's) when I started and quite a few were pretty solid cars. (My early stuff was 1964 to 1968)  Some stinkers but not the dismal picture painted above. Now that said, yes, a dealer wouldn't talk to you if your car had more than 60K on the clock and lot cars were 60K or less except the back row where 100-120K was the auction bought for dirt for us poor losers. Kids in my county were not allowed to wear long pants if they couldn't rebuild and repair every part of that beast.    I will agree that many parts are now better. Alternators and charging systems are an envy. But I replaced few water pumps or power steering pumps then. Rebuilt carburetors but replaced few. Mufflers are another place of OEM improvement. Stainless? We didn't have no stink'n stainless.    As long as humans are in charge of governance this $$$$ situation will not improve.    The purchasing power of a dollar in 1955 is significantly higher than in 2025, meaning that a dollar could buy more goods and services in 1955 compared to 2025 due to inflation over the years. For example, what you could buy for $1 in 1955 would require approximately $10.50 in 2025.  Calculator.net inflationtool.com   Comparison of Purchasing Power: 1955 vs 2025 The purchasing power of a dollar has changed significantly from 1955 to 2025 due to inflation. Below is a breakdown of how much more money is needed in 2025 to match the buying power of a dollar in 1955. Purchasing Power Overview Year Equivalent Value of $1 in 1955 1955 $1.00 2025 $10.50 Key Points Inflation Impact: The value of money decreases over time due to inflation, meaning that the same amount of money buys fewer goods and services in the future. Example of Inflation: What could be purchased for $1 in 1955 would require approximately $10.50 in 2025. This illustrates how inflation has eroded the purchasing power of the dollar over the decades. Understanding these changes in purchasing power is crucial for financial planning and assessing economic conditions over time.  Wikipedia Calculator.net
    • Aimatdeer
      Ac not keeping up

      By Aimatdeer · Posted

      The thermometer has been in my wife's 2008 envoy, my sons 2016 chevy, my friends 2020 1500 silverado all showing cooler readings. It's not the guage.
    • Gary Doolin
      Trim level custom/pro

      By Gary Doolin · Posted

      Have a question concerning trim levels. Ive not bought a new vehicle since 2006, and I have decided on a 2500 gmc pro or silverado custom. For anyone that has one of these 2 trim levels have you regretted not stepping up to the LT or SLE. I look at things as the more electronics the more problems to arise. I love the look of the old school gauges on the dash as well. Looking forward to hearing your thoughts. 
    • PunchT37
      Ac not keeping up

      By PunchT37 · Posted

      If that guage has a way to adjust [hex on bottom], put that thing in a glass full of ice, put water in, put your gage in, let it sit for 3 minutes or so, and set it to 33 degrees.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...