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"smooth" feature in TunerPro?

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Old Mar 20, 2006 | 03:04 PM
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ryan.h's Avatar
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"smooth" feature in TunerPro?

Can someone give me an explanation of how it works? It appears as though values of 0.99 hardly change the selected cells, while 0.1 mows 'em flat. Is it some kind of averaging?

I guess my question is, if I didn't want any of the values (in the ve table) to move more than say, 1.0 + or -, how would I set that up?
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Old Mar 20, 2006 | 08:32 PM
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From: Calif
Car: 75 Vette
Engine: 406 TPI
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Yes, I would like to know also and what do you think
of the way it works
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Old Mar 22, 2006 | 10:13 AM
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From: In your ear. No, the other one.
Car: '89 Trans Am WS6
Engine: 350 TPI
Transmission: T5WC
Axle/Gears: 3.08 posi
Select the area of the table you'd like to smooth (needs to be at least 3 X 3), enter a smoothing value between 0 - .99, then hit execute.

.7 is the value I usually use.
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Old Mar 22, 2006 | 06:06 PM
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But what does the number mean? It can smooth it out by changing the values up to 30%? (1-0.7)
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Old Mar 22, 2006 | 09:37 PM
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From: Jax/FL
Car: 92 formula, sd,730ecm with $59
Engine: 383/ t-76 turbonetics
Transmission: 700r4 3200 vig converter
Axle/Gears: 3.42
how does the smooth feature help in tuning? say for instance the ve tables. what will it do to the profile? I think this is what people are asking not just how to use the values. I would like to know myself.
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Old Mar 22, 2006 | 09:50 PM
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From: Browns Town
Car: 86 Monte SS (730,$8D,G3,AP,4K,S_V4)
Engine: 406 Hyd Roller 236/242
Transmission: 700R4 HomeBrew, 2.4K stall
Axle/Gears: 3:73 Posi, 7.5 Soon to break
My explaination of what it can do

When the code is traversing cells of a table it is not good to have values that are radically different. This can cause surging when going in and out of different cells. It is just an easier way to do some "smoothing" of areas that seem to have these types of transitions.
Starting with a smooth table and then roughing in a set of numbers can get daunting when adjusting adjacent cells to the targeted ones. As you keep making individual cell changes you must adjust around it as well. Making "heavy" smoothing values to get the whole base numbers in range, then use "lighter" values as the BLM (or whatever) come closer to optimum will help keep transitional problems at bay.
I don't know the actual calculation factors (if it is even relevant) but it just acts as a filter value to bring the numbers closer together. Experiment with it and find the amounts that look good to you.
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Old Mar 23, 2006 | 01:11 AM
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From: In your ear. No, the other one.
Car: '89 Trans Am WS6
Engine: 350 TPI
Transmission: T5WC
Axle/Gears: 3.08 posi
Think of the number passed into the function as an "inverse weight". Using a large number makes small changes to the table, using a small number makes large changes to the table.

Then deeply consider what JP86SS just stated.
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Old Mar 23, 2006 | 07:47 PM
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From: Calif
Car: 75 Vette
Engine: 406 TPI
Transmission: 700 R-4
Axle/Gears: 373
Do you have a choice to smooth on
the higher side or lower side, if so
how do you do it. Thanks.
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Old Mar 23, 2006 | 08:26 PM
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From: Shippensburg, PA
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Sorry to interupt, but what is this smoothing feature yous guys are refering too? Is it part of Tunerpro RT?? If so, how do I find it/use it. I never knew it was there and can't seen to find anything about it. Thanx all.
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Old Mar 26, 2006 | 01:31 PM
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From: Wyoming
Smooth

Double click on a table,select toolbox if not already open, at table editor,check out table functions, I think its fairly new so check for current version.
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