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Normal for VE Table to exceed 100%?

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Old Dec 8, 2006 | 12:06 AM
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Default Normal for VE Table to exceed 100%?

I added headers and a Balckwing . Went through it and did a VE/MAF tune. Some of the cells were in excess of 100%, (max 107%) @ 4400 and higher map readings.

In comparing my VE table with 2 other VE tables with headers/h/c, I noticed their VE tables topped out around 99%.

Questions is: Is it normal for modified motor to achieve >100% in VE tables?
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Old Dec 8, 2006 | 12:39 AM
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I believe that just compares it to a number that you set up. So it would be possible but probably bad practice. The exact thing you are talking about is why I liked how LS1 Edit did their VE. Easier to think in the numbers and units you are actually working in.
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Old Dec 8, 2006 | 12:39 AM
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yes, its normal. VE numbers are only numbers, just put them where they want to be.

Rick
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Old Dec 8, 2006 | 12:45 AM
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Originally Posted by Rick@Synergy
yes, its normal. VE numbers are only numbers, just put them where they want to be.

Rick
Thought so. Just could not .understand why another car with same motor and better cam and heads would have a VE table that topped out at 99%! This was a tuned car as well.
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Old Dec 8, 2006 | 08:07 AM
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What is your injector duty cycle looking like? Are your injectors maxed? Or more than 80% ?
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Old Dec 8, 2006 | 08:33 AM
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FWIW hptuners shows you VE on LS1's in % rather then the raw # just to be more user friendly. Thats why the max % is like 367% if im not mistaken. So yes, perfectly normal to go over 100 ve.
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Old Dec 8, 2006 | 09:06 AM
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Originally Posted by Chalky
Thought so. Just could not .understand why another car with same motor and better cam and heads would have a VE table that topped out at 99%! This was a tuned car as well.

This is because the other guy could have his IFR rate set differently than yours.

Rick
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Old Dec 8, 2006 | 09:33 AM
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I think that is to high with just eaders. I never got them that high. Did u disable the MAF while VE tuning??? Did u use a Wideband and monitor your cammanded air flow to wideband???? After u set the PE to A/f u wanted??? If not that is y.
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Old Dec 8, 2006 | 09:37 AM
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My VE had some odd curves in it, and exceeding 100 VE, Thats until I sorted my IFR table.
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Old Dec 8, 2006 | 09:53 AM
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Originally Posted by Doc
What is your injector duty cycle looking like? Are your injectors maxed? Or more than 80% ?
If I remember, IDC was over 80% but <90%.
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Old Dec 8, 2006 | 09:54 AM
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Originally Posted by YellowToy/A
I think that is to high with just eaders. I never got them that high. Did u disable the MAF while VE tuning??? Did u use a Wideband and monitor your cammanded air flow to wideband???? After u set the PE to A/f u wanted??? If not that is y.
Yes , yes, yes, yes!
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Old Dec 8, 2006 | 10:05 AM
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A lot faster with the mods Dave?
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Old Dec 8, 2006 | 02:19 PM
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what was ur wb a/f ratio??? 13.0?
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Old Dec 8, 2006 | 03:05 PM
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AFR WB was no richer than 12.6:1 and no leaner than 12.9:1.

FWIW, When I started to do my VE tune, the car went into limp home mode. I added 20% across the VE tables and started dialing it in from that point.

Last edited by Chalky; Dec 8, 2006 at 03:18 PM.
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Old Dec 8, 2006 | 03:20 PM
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U pass all my tests. It sounds like u did good.
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Old Dec 8, 2006 | 03:29 PM
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Even with my turbo kit, I dont get over 100% VE...
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Old Dec 8, 2006 | 03:33 PM
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Originally Posted by Country Boy
Even with my turbo kit, I dont get over 100% VE...

that sure dont sound right. When you are FI, you are more than 100% efficient.

Rick
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Old Dec 8, 2006 | 03:34 PM
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You know what I forgot to ask, are you still using one bar or two bar? Sorry for that.


Rick
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Old Dec 8, 2006 | 03:36 PM
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me? 2 bar SD. I also have a BR-FPR that probably scews the numbers too.
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Old Dec 8, 2006 | 10:16 PM
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Originally Posted by Pro Stock John
A lot faster with the mods Dave?
I might find out this Spring John. I was beginning to think I was the only one who had not done a heads/cam.
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