PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

MAFLESS VE Tuning

Thread Tools
 
Search this Thread
 
Old Sep 15, 2004 | 10:02 PM
  #21  
HumpinSS's Avatar
FormerVendor
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,059
Likes: 0
From: Waldorf, MD
Default

ve table from the editor both primary and secondary
Reply
Old Sep 15, 2004 | 11:49 PM
  #22  
Another_User's Avatar
Thread Starter
TECH Addict
 
Joined: Feb 2004
Posts: 2,826
Likes: 0
Default

Originally Posted by HumpinSS
ve table from the editor both primary and secondary
Secondary only for the actual tune. Then I paste the rows to the primary, and between rows I divide the two numbers and insert the difference. It's the best we can do until we can use the primary table with the MAF unplugged.

Also, check out the HP Tuner forum. Somebody finally posted a Holden MAF table for us. It looks similar to what I was expecting. Might be worth a shot with a lid. I will try it in a day or so...too tired to put it in tomorrow morning's tune.
Reply
Old Sep 16, 2004 | 08:48 AM
  #23  
HumpinSS's Avatar
FormerVendor
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,059
Likes: 0
From: Waldorf, MD
Default

Originally Posted by Another_User
Secondary only for the actual tune. Then I paste the rows to the primary, and between rows I divide the two numbers and insert the difference. It's the best we can do until we can use the primary table with the MAF unplugged.

Also, check out the HP Tuner forum. Somebody finally posted a Holden MAF table for us. It looks similar to what I was expecting. Might be worth a shot with a lid. I will try it in a day or so...too tired to put it in tomorrow morning's tune.

I actually do it backwards I modify the primary (even though I know it isnt looked at and the scanner is setup for the primary) and then copy to the secondary. My trims are comming around also. I did some logging last night and some tunning i will get a better feel for how well i am tonight. I may copy and paste those maf tables tonight jsut to see if i am able to plug it back up. Will post later to let you all know how it went
Reply
Old Sep 16, 2004 | 08:58 AM
  #24  
Stryker's Avatar
On The Tree
iTrader: (5)
 
Joined: Jul 2004
Posts: 154
Likes: 0
From: Decatur, IL
Default

im confused what table does what?? i thought the primary was mainly used and then the secondary was a backup or something? please clearify
Reply
Old Sep 16, 2004 | 09:16 AM
  #25  
HumpinSS's Avatar
FormerVendor
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,059
Likes: 0
From: Waldorf, MD
Default

On cars with both tables the primary is used for sanity checking. If the MAF fail then the secondary is used. In later model years the primary table (only one) is used for both.
Reply
Old Sep 16, 2004 | 09:17 AM
  #26  
SMOKINV8's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Jan 2002
Posts: 1,193
Likes: 0
From: Springfield, IL
Default

Could one of you two tell me which VE tables (specifically) you're tuning with, and why? I'd like to have a pretty good handle on what needs to be done when we get the free time to do this.

Okay, got the why from the other posts... The tables you're modifying are VE vs. ??
Reply
Old Sep 16, 2004 | 09:22 AM
  #27  
HumpinSS's Avatar
FormerVendor
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,059
Likes: 0
From: Waldorf, MD
Default

Both Another_user and I are using the secondary ve table (98-00). Keep in mind after 00 they may have gotten rid of it in which case you will tune the primary table.

If you have HPTuners and you see two ve tables when you disconnect the MAF the PCM will use the second table

If you see one table when you disconnect the MAF it will use the primary

There are two VE (Volumetric Effieciency tables) Primary and secondary

UNDER NO CIRCUMSTANCE ARE YOU TO DISCONNECT THE MAF IF YOU ARE RUNNING AN AUTO
Reply
Old Sep 16, 2004 | 10:07 AM
  #28  
Stryker's Avatar
On The Tree
iTrader: (5)
 
Joined: Jul 2004
Posts: 154
Likes: 0
From: Decatur, IL
Default

UNDER NO CIRCUMSTANCE ARE YOU TO DISCONNECT THE MAF IF YOU ARE RUNNING AN AUTO
ive never heard that before.. why so? me and smokin both have 98 autos
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Sep 16, 2004 | 10:07 AM
  #29  
jimmyblue's Avatar
Moderator
iTrader: (11)
 
Joined: Mar 2002
Posts: 12,604
Likes: 7
From: East Central Florida
Default

I don't see a secondary table and I have an automatic
so I guess I'll just keep on spectatin'. Being as I also
have not seen nearly the trouble you guys are having,
and seen VE adjusts push properly on my low-end trims.
There's something really screwy about all this. Like we
all live in different worlds. Maybe it's the early / late
model thing.
Reply
Old Sep 16, 2004 | 10:10 AM
  #30  
HumpinSS's Avatar
FormerVendor
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,059
Likes: 0
From: Waldorf, MD
Default

Originally Posted by nitrousfed
ive never heard that before.. why so? me and smokin both have 98 autos

The pcm uses your MAF sensor to apply tranny line pressure. with it disconnected you will command full pressure to the tranny at all times and burn out the pump. Another_user and I are stick cars so we can get away with it
Reply
Old Sep 16, 2004 | 10:11 AM
  #31  
HumpinSS's Avatar
FormerVendor
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,059
Likes: 0
From: Waldorf, MD
Default

Originally Posted by jimmyblue
I don't see a secondary table and I have an automatic
so I guess I'll just keep on spectatin'. Being as I also
have not seen nearly the trouble you guys are having,
and seen VE adjusts push properly on my low-end trims.
There's something really screwy about all this. Like we
all live in different worlds. Maybe it's the early / late
model thing.

You have an 01-02 by that time they did away with the secondary table. We both have decent sized cams with a good bit of overlap and that may be the reason why it seems we live in different worlds
Reply
Old Sep 16, 2004 | 10:13 AM
  #32  
Stryker's Avatar
On The Tree
iTrader: (5)
 
Joined: Jul 2004
Posts: 154
Likes: 0
From: Decatur, IL
Default

so then my question is... what do u think the best way we can tune our cars is? can we still make decent adjustments to the ve with maf???
Reply
Old Sep 16, 2004 | 10:25 AM
  #33  
HumpinSS's Avatar
FormerVendor
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,059
Likes: 0
From: Waldorf, MD
Default

Yes you can, whether you are succesful or not is a different issue.

Are you cammed?

I have a few more things i want to try before i rule the maf out so give me a few days
Reply
Old Sep 16, 2004 | 10:29 AM
  #34  
Stryker's Avatar
On The Tree
iTrader: (5)
 
Joined: Jul 2004
Posts: 154
Likes: 0
From: Decatur, IL
Default

cool well me and smokin tune together so heres the factors... he is highly modded..cammed.. and im basically stock non cammed.. so ideas on both would be nice..
Reply
Old Sep 16, 2004 | 10:39 AM
  #35  
HumpinSS's Avatar
FormerVendor
iTrader: (1)
 
Joined: Feb 2002
Posts: 3,059
Likes: 0
From: Waldorf, MD
Default

You will prolly see your ve push more than his when you all start to tune... try it out and see
Reply
Old Sep 16, 2004 | 11:50 AM
  #36  
NicD's Avatar
7 Second Club
20 Year Member
Photogenic
Liked
Loved
iTrader: (7)
 
Joined: Nov 2001
Posts: 3,170
Likes: 690
From: Chandler, AZ
Default

Originally Posted by HumpinSS
The pcm uses your MAF sensor to apply tranny line pressure. with it disconnected you will command full pressure to the tranny at all times and burn out the pump. Another_user and I are stick cars so we can get away with it
Yup, only time you can do it on an auto is if you have a vacuum referenced tranny like the FLP Level IV.
Reply
Old Sep 16, 2004 | 01:37 PM
  #37  
Stryker's Avatar
On The Tree
iTrader: (5)
 
Joined: Jul 2004
Posts: 154
Likes: 0
From: Decatur, IL
Default

cool ill post up the results
Reply
Old Sep 16, 2004 | 01:53 PM
  #38  
SMOKINV8's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Jan 2002
Posts: 1,193
Likes: 0
From: Springfield, IL
Default

Originally Posted by HumpinSS
The pcm uses your MAF sensor to apply tranny line pressure. with it disconnected you will command full pressure to the tranny at all times and burn out the pump. Another_user and I are stick cars so we can get away with it
Just when I thought things might get easier..
Reply
Old Sep 16, 2004 | 07:27 PM
  #39  
Another_User's Avatar
Thread Starter
TECH Addict
 
Joined: Feb 2004
Posts: 2,826
Likes: 0
Default

Trim histogram of the day.
Reply
Old Sep 16, 2004 | 07:42 PM
  #40  
Another_User's Avatar
Thread Starter
TECH Addict
 
Joined: Feb 2004
Posts: 2,826
Likes: 0
Default

Well, I don't think I am going to get any closer with only a secondary table to tune with. Here is the VE table I am using for anybody that wants to take a look at it. It is for a vehicle with the mods you see below. Use at your own risk.

The edges may need to be cleaned up a little, there are a few cells I couldn't get to, like some of the 400 rpms. FYI, I started with a 2002 Z06 VE table to build this.
Reply



All times are GMT -5. The time now is 04:21 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE