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Smooth or "give it what she wants" VE Tables

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Old 09-19-2017, 07:16 PM   #1
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Smooth or "give it what she wants" VE Tables

A recent situation came up when doing a tune. It was one of those things where someone had done some mods but needed a tune to get things going. I helped out and provided some remote tuning. The VE map is not "smooth" and is fairly
bumpy in places. However, datalogging and driver input indicates a very driveable tune.

So my question is, Does it matter to you that the VE map is not a nice rolling, smooth curve? I recall Grumpy saying that "give er what she wants".
What do you think?
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Old 09-19-2017, 07:19 PM   #2
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Re: Smooth or "give it what she wants" VE Tables

I have found smoothing doesn't allways help. Feedback from helping people tune there ve spiked ve ended up being the answer to a better running engine. Go figure factory ve are pretty smooth .
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Old 09-19-2017, 07:28 PM   #3
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Re: Smooth or "give it what she wants" VE Tables

I've tried smoothing (both manually and otherwise) and whenever I go back out to datalog I find the VE wants to revert back to a previous mode. Of course there will always be cells that are not touched or logged causing some of the peaks or valleys.
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Old 09-19-2017, 08:02 PM   #4
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Re: Smooth or "give it what she wants" VE Tables

I agree with Tuned... give the engine what it wants. I don't drive around thinking how smooth and pretty my VE tables are...lol..
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Old 09-19-2017, 08:21 PM   #5
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Re: Smooth or "give it what she wants" VE Tables

It would be nice to have the tables look pretty . But if it's effecting drive ability ugly it is lol
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Old 09-22-2017, 03:44 PM   #6
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Re: Smooth or "give it what she wants" VE Tables

I concur. Smoothing fuel is typically not true ideal. No engine flows perfectly but I'd love to see f1 fueling graphs.
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Old Yesterday, 07:17 PM   #7
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Re: Smooth or "give it what she wants" VE Tables

i agree as well. my engine seems to only be happy in the 13.5-14.00 range. anything above that it feels like a sluggish puppy. Hell my old 305 tbi had a VE map that looked like the Rocky Mountains but it ran like a scolded dog. my VE map for my 383 looks much cleaner but im still dialing it in.
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Old Yesterday, 07:59 PM   #8
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Re: Smooth or "give it what she wants" VE Tables

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Originally Posted by robertfrank View Post
i agree as well. my engine seems to only be happy in the 13.5-14.00 range. anything above that it feels like a sluggish puppy. Hell my old 305 tbi had a VE map that looked like the Rocky Mountains but it ran like a scolded dog. my VE map for my 383 looks much cleaner but im still dialing it in.
yes precisely. and when looking at stock bins from GM, guess what? They werenít nice and smooth. They were jagged, and some parts and regions of the VE map were incongroous with the rest of the trendline. And yet, the datalogs show BLMs averaging 128 +/- 2. Motor running smooth as hell. Thatís the smooth that counts.
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