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can someone exlain the ve tables

 
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PhilStubbs



Joined: 10 Sep 2010
Posts: 71
Location: St. Augustine Fl

PostPosted: Sat Sep 18, 2010 9:37 am    Post subject: can someone exlain the ve tables Reply with quote

with all of the tuning programs i have ever used the numbers in the fuel tables had no real meaning, but larger numbers= more fuel. so, more vac/low rpm the lower the number and less vac/high rpm had higher numbers. i have noticed while using tuner pro that at idle i have low numbers and they get larger in the middle of the table, but then get smaller again closer to full throttle and higher rpm.

it is making tuning a little confusing. partly cause i dont have an aldl cable and my ostrich wont run the truck for anything. having to burn chips is taking forever. i can usually estimate changes decently but its tough when the numbers dont make any sense to me.

does anyone have any insight on this?
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Six_Shooter



Joined: 06 May 2007
Posts: 590

PostPosted: Sat Sep 18, 2010 9:57 am    Post subject: Reply with quote

The VE numbers mean the same thing as you're used to.

The only reason for the upper map taper off to lower numbers is that engines require less fuel above thier torque peak, and is why there is the taper.
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PhilStubbs



Joined: 10 Sep 2010
Posts: 71
Location: St. Augustine Fl

PostPosted: Sat Sep 18, 2010 10:11 am    Post subject: Reply with quote

i guess im just used to 4 cylinder turbo cars where they need more fuel for more rpm. this is my first attempt at v8 tuning
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deaner



Joined: 27 Dec 2010
Posts: 2

PostPosted: Mon Dec 27, 2010 7:59 pm    Post subject: Reply with quote

The difference is in the vehicle your tuning. Would be the same for a V8 if it were boosted. Natural Aspiration can only take in so much air before it runs out of breath. Thus the drop in fuel ie drop in VE. Forced Induction, more so turbos(load dependent) even at say 7k rpm, you're still boosting. Over 100% VE so you still need the fuel to go with the air you're cramming into the chamber.
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dfddfd2



Joined: 27 Feb 2008
Posts: 112
Location: Burgaw, NC

PostPosted: Tue Dec 28, 2010 4:35 am    Post subject: Reply with quote

There is some interesting VE information on LS1tech:
http://www.ls1tech.com/forums/pcm-diagnostics-tuning/149741-ve-table-cracked.html

Dave
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RainMan



Joined: 30 Aug 2010
Posts: 22
Location: Germany

PostPosted: Mon Jan 03, 2011 4:59 am    Post subject: Reply with quote

Sorry, this is really a stupid question ...

Where are VE-Tables visible in Tuner Pro RT5 ??? I miss them very often, because in MegaLog Viewer exists a dual view mode. You see the fuell cells and are able to have a second view on VE, without any toggle of a screen.

Is there a View on VE in Tuner Pro???
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EagleMark



Joined: 22 Mar 2010
Posts: 424

PostPosted: Thu Jan 06, 2011 8:48 am    Post subject: Reply with quote

Click on Tables and then look for Main Fuel Table #1 and #2

Differant ECM/XDF may be worded diferantly.
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