HumpinSS

iTrader: (1)

After caluclating your ve table are the values bigger or smaller than the stock values?

Another_User

It depends. On quite a few things. First, if you messed with your IFR or MAF tables it could go either way depending on which way you tuned (rich or lean). Second, it depends on your mods, and which way your stock VE table put you (rich or lean). I am finding it very very hard to move the low vacuum and low RPM VE values. But my VE values (because my car was running naturally lean) are higher than stock by more than 10 all around, and a lot more in some places. A lot more. But I have found another fueling table I think we can play with... I will be back to post later. After my nagging wife goes away for awhile.

marc_w

FWIW, mine are smaller. A LOT smaller in the lower rpm's - a few points lower in the upper rpm's. (only real mod is the cam, so the aboves 'does' make some sense)

P Mack

iTrader: (6)

Bigger in the upper rpms, lower around idle. To start out with I just changed the ve table the same as the change in the torque curve. IFR and MAF tables are stock.

Another_User

Hmmm. We should all post pictures of our VE tables...maybe even some values. If people are interested I will post some later from the laptop I have all that junk on.

Bink

[QUOTE=HumpinSS]After caluclating your ve table are the values bigger or smaller than the stock values?[/QUOTE

Lower than stock at low RPM and low kPa. Greater than stock above about 3000 RPM - at mid to high kPa.

WS6snake-eater

[QUOTE=Bink]
Same here

tici

iTrader: (1)

98 TA: the measured VE is higher at low RPM and lower after torque peek. The VE table of later models fits pretty well!

Another_User

Eh? You mean that speed bump looking thing that they used later?

tici

iTrader: (1)

Exactly!
Doesn't it make sense? After the torque peek the engine won't be that "efficient" so it's logical to me that the VE go lower.

HumpinSS

iTrader: (1)

Yes this is correct after the torque peak ve WILL decline or level off. That is probably how your curve will look on the dyno also

Another_User

Yeah...I tried it once before, but it didn't help. I jammed it in my latest tune today. I still have all my old VE tables anyways, so I can change it back if I need to.

tici

iTrader: (1)

I tried the 02 VE tables (I also have a 98).
The low RPM response is a little better, the biggest difference is at WOT. I had to scale the IFR table by 7% and was running very rich (960 mV). After reducing the VE using the 02 table the WOT mV went to 930.
I'm not saying it's the way to tune WOT, but it helped for me.

Another_User

I dropped the IFR change and went old-school with the MAF*1.1 (110 percent). Very nice results so far...