C7 Tech/Performance Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Diablo tune-M7

Thread Tools
 
Search this Thread
 
Old Oct 10, 2015 | 05:40 AM
  #1  
Seannyc's Avatar
Seannyc
Thread Starter
Drifting
10 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Oct 2014
Posts: 1,802
Likes: 69
Default Diablo tune-M7

I uploaded. My tune raised the rev limit in gear 400 more that's the most I can go is that okay also put the throttle response to from 0 to 12 and it has a Dod on/off option should I leave it on or off
Reply
Old Oct 10, 2015 | 07:54 PM
  #2  
bob guzzy's Avatar
bob guzzy
Safety Car
20 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Jan 2006
Posts: 3,940
Likes: 43
From: shavertown Pa.
Default

Off
Reply
Old Oct 10, 2015 | 09:08 PM
  #3  
meyerweb's Avatar
meyerweb
Safety Car
 
Joined: Jan 2015
Posts: 3,941
Likes: 499
From: Northern Virginia
Default

Do you know what that option does? DOD is the same as AFM. Setting it to off, will prevent the car from entering 4 cylinder mode. If that is something you want to do, then set it off. But if you have a manual transmission, might as well leave it on, so you have the option.

As for raising the redline, my opinion, for what it's worth, is that GM set the redline where it is for a reason. Unless you're tracking the car, and really think you'll get an advantage from an extra 400 rpm, leave redline where Chevy set it.
Reply
Old Oct 10, 2015 | 09:38 PM
  #4  
BJ67's Avatar
BJ67
Melting Slicks
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2012
Posts: 3,166
Likes: 686
From: SUFFIELD CONNECTICUT
Default

Originally Posted by meyerweb
Do you know what that option does? DOD is the same as AFM. Setting it to off, will prevent the car from entering 4 cylinder mode. If that is something you want to do, then set it off. But if you have a manual transmission, might as well leave it on, so you have the option.

As for raising the redline, my opinion, for what it's worth, is that GM set the redline where it is for a reason. Unless you're tracking the car, and really think you'll get an advantage from an extra 400 rpm, leave redline where Chevy set it.
If he is going to 1/4 mile the car, the raise in the redline will allow him to trap in 3rd gear. I would raise it 200 rpm. I have been thinking about doing it myself. I just made a pass thru the 1/4 and trapped at 117 mph and had to shift into 4th very close to the first beam of two that measures your trap speed. I feel I can et better if I dont have to cross the line in the bottom of 4th gear and 1 less shift
Reply
Old Oct 10, 2015 | 10:30 PM
  #5  
Seannyc's Avatar
Seannyc
Thread Starter
Drifting
10 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Oct 2014
Posts: 1,802
Likes: 69
Default

Originally Posted by meyerweb
Do you know what that option does? DOD is the same as AFM. Setting it to off, will prevent the car from entering 4 cylinder mode. If that is something you want to do, then set it off. But if you have a manual transmission, might as well leave it on, so you have the option.

As for raising the redline, my opinion, for what it's worth, is that GM set the redline where it is for a reason. Unless you're tracking the car, and really think you'll get an advantage from an extra 400 rpm, leave redline where Chevy set it.
Yes dod takes off the 4 cylinder but I herd that is making the engines fail that's why I'm thinkin about taking it off

I never really over revved it even tho I raised it but is it okay to rev the extra 400 since I raised it
Reply
Old Oct 10, 2015 | 10:34 PM
  #6  
Seannyc's Avatar
Seannyc
Thread Starter
Drifting
10 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Oct 2014
Posts: 1,802
Likes: 69
Default

Originally Posted by BJ67
If he is going to 1/4 mile the car, the raise in the redline will allow him to trap in 3rd gear. I would raise it 200 rpm. I have been thinking about doing it myself. I just made a pass thru the 1/4 and trapped at 117 mph and had to shift into 4th very close to the first beam of two that measures your trap speed. I feel I can et better if I dont have to cross the line in the bottom of 4th gear and 1 less shift
They say your sapose to finish in 4th to allow the 119 120 traps shifting into 4th and still have room to finish they said you'll no that's a good run
Reply
Old Oct 11, 2015 | 03:00 PM
  #7  
meyerweb's Avatar
meyerweb
Safety Car
 
Joined: Jan 2015
Posts: 3,941
Likes: 499
From: Northern Virginia
Default

Originally Posted by Seannyc
Yes dod takes off the 4 cylinder but I herd that is making the engines fail that's why I'm thinkin about taking it off
Nothing personal, but I just love these posts from people who "heard" something. Who did you hear it from, and what it their level of expertise. If a dealer tech tells you they've seen multiple failures due to DOD, that might mean something. If some random dude on the internet says the same thing, it's probably meaningless.

No one outside of GM can tell you how many actual failures of the DOD equipment there have been. But if you take the time to search this and other online forums, I don't think you'll find any reported failures of the valve train due to the DOD mechanism. That's under street use, of course. If you're really drag racing a lot, and over-revving the engine, all bets are off.

You didn't answer my question about transmission. If you have an M7, the car won't enter 4 cylinder mode unless you select Eco drive mode, so there's no reason to disable it. If you have an A8, the choice is yours.
Reply
Old Oct 11, 2015 | 08:21 PM
  #8  
Seannyc's Avatar
Seannyc
Thread Starter
Drifting
10 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Oct 2014
Posts: 1,802
Likes: 69
Default

Originally Posted by meyerweb
Nothing personal, but I just love these posts from people who "heard" something. Who did you hear it from, and what it their level of expertise. If a dealer tech tells you they've seen multiple failures due to DOD, that might mean something. If some random dude on the internet says the same thing, it's probably meaningless

No one outside of GM can tell you how many actual failures of the DOD equipment there have been. But if you take the time to search this and other online forums, I don't think you'll find any reported failures of the valve train due to the DOD mechanism. That's under street use, of course. If you're really drag racing a lot, and over-revving the engine, all bets are off.

You didn't answer my question about transmission. If you have an M7, the car won't enter 4 cylinder mode unless you select Eco drive mode, so there's no reason to disable it. If you have an A8, the choice is yours.

Yes no point of shutting it off but if I put it in Eco mode and shut it off then idk but people are posting that and sayin gm is making a new system for dod not sure how true cuz of the failures

Just sayin lol
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Corvettes to Drive Before You Die!

 Joe Kucinski
story-1

Corvette & Porsche 911: How Two Icons Conquered the Last 25 Years

 Joe Kucinski
story-2

2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

 Michael S. Palmer
story-3

5 Best & 5 Worst Corvette Daily Drivers

 Joe Kucinski
story-4

The Headlights of Every Corvette Generation Explained

 Joe Kucinski
story-5

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-6

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-7

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-8

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-9

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
Old Oct 12, 2015 | 03:01 PM
  #9  
meyerweb's Avatar
meyerweb
Safety Car
 
Joined: Jan 2015
Posts: 3,941
Likes: 499
From: Northern Virginia
Default

Again with the "People are saying...."

GM is working on a new system because it will be much more sophisticated and offer greate mpg improvements. ALL the auto makers are scrambling to find ways to improve mpg without reducing power greatly, because federal mpg standards are going to gradually get a lot tougher, beginning with the 2017 model year.

Like I said, I've seen no reports of failures in the LT1 AFM system. But if you're going to be tracking the car a lot, and exceeding redline....

Shutting it off won't hurt anything but gas mileage.
Reply

Get notified of new replies

To Diablo tune-M7





All times are GMT -4. The time now is 06:45 AM.

story-0
10 Corvettes to Drive Before You Die!

Slideshow: 10 Corvettes to drive before you die.

By Joe Kucinski | 2026-06-23 08:31:12


VIEW MORE
story-1
Corvette & Porsche 911: How Two Icons Conquered the Last 25 Years

Slideshow: Corvette and Porsche 911, how two icons conquered the last 25 years.

By Joe Kucinski | 2026-06-23 08:18:33


VIEW MORE
story-2
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-3
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-4
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-5
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-6
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-7
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-8
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-9
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE