Their has been a interesting thread going on over at ls1tech about VE/MAF Yes/No and all that stuff. Looks like from what those LS1 guys are showing that VE does have an affect during closed loop MAF operation. At least for LS1's that is. Anyway, I am not wanting to start up this debate here. I just wanted to inform people here that haven't seen it.

http://www.ls1tech.com/forums/showthread.php?t=84933

Jeff D.

 

And to think at all the people that scoffed at me when I said I picked up 40 RWHP on the dyno by just changing my VE tables.......


Whos the wrong one now ?

 

I still think you are. If you read the post, you'll notice that this only applies to LS1s. Not LT1s. I've been doing my own adjustments to the VE tables on a dyno. So far, I haven't seen ANY change at all. I've put them to 100 and 0 on my car, ran it on the dyno, no change. Every dyno was within 4 HP. I'm going to be trying it on a 383, other LT1 vehicles (such as B and Y bodies), and other MAF cars that come in to get tuning at the shop. If you read through the entire post, you'll notice the one thing that is agreed on is that this only applies to LS1s and that the LT1 VE tables do not effect anything while the car is in MAF mode.

 

Tuning, in this context, refers to either changing timing or fueling at WOT, right? Obviously, if you gained 40rwhp by changing the VE tables it must have made it richer or leaner. I'd be curious to hear more about what you changed, the amount of the change, and what effect it had on the AF ratio. I have never really messed with the VE tables, 'cause I am not sure what they would do and I have been able to accomplish what I want with other changes. But I would like to know more.

Rich Krause

 

You very well may be right. But get off your horse.
For every 1 person (you) that says it works, there are 25 people that say it has had no effect on their cars or any others they've done. And in a way, I hope you are right as it will give us all something new to toy with to cure part throttle drivability issues.
Since you couldn't explain it before, I'm still unsure of the benefit of using the ve tables vs. the pe tables for wot tuning. Care to give it 1 more shot?

 

LOL

 

Having tuned over 20 cars already I see that the VE tables do not work on the LT1s and DO work on LS1s...

If VE tables would work as you suggest I'd say that VEMaster would work for everyone.. Sad thing is that it didn't work for me on ANY LT1 that I have played with...

I would love to see a VE master for an LS1

 

I plan on seeing how (if any) effect the VE tables have on different cars that come into get tuning at the dyno shop that I am doing tuning at (of course, this will only apply to MAF cars). I will post the data logs, dyno graphs, and wideband A/F ratio readings that we see based on various VE table changes (most importantly 0 and 100). I don't doubt that the VE tables do something on the LS1 cars, that much as been proven a long time ago. If they do anything on heavily modded LT1s, we will see, I'm going to have some interesting combos coming to the dyno shop in the next month or 2.

 

Your a nerd Don't go patting yourself on the back, YOUR STILL WRONG

VE Tables ARE NOT USED IN MAF CARS!!!!!!! IT'S BEEN PROVEN!!!!!!!!

 

On lT1s

 

You are just plain ignorant. I could careless what some internet junkie like yourself calls me. If im the nerd why do you have 603493529345 post? hmmmm. because you have no life thats why.

VE tables are not to be changed on lightly modded LT1s. and VE tables DO work on big solid roller cammed OBD2 LT1s like mine. I have seen it with my own eyes. I gained 40 RWHP without touching anything but VE and Timing.

For those who do not believe in VE tables on OBD2 LT1's fine, dont use them. It gives me the advantage when I see you on the street and slaughter you with my VE table tune.

 

Exactly... obd2s... fine.. on obdis they are NOT used that was the whole point here.