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Title: Rescaling maps, axes, and factors Post by: Three77 on January 24, 2015, 05:44:15 PM In following the 1.8t community thread there is often mention of rescaling maps and axes. While I think I have a general idea of how to go about it, I thought I'd ask in this section to see if anyone had a nice how-to example as it may alleviate any confusion for others who may have the same question.
For example, if *cough* someone *cough* is using a CH file for a 1.8t and referencing it against a TT CA or CB file for something like LDRXN, KFMIRL, or KFMIOP values, but the rpm axis don't match up (ex. 480 rpm vs. 600), how would one go about correctly changing these values? I'm fairly certain that just changing the values in the axis wouldn't do it as the factor would be off. Title: Re: Rescaling maps, axes, and factors Post by: ddillenger on January 24, 2015, 06:16:56 PM If the factor is different you can't copy raw hex, but the values shown are after the factor has been applied. That means the values can be changed independent of the factor.
So yes, you can just change the. HOWEVER, if the axis isn't directly preceding the map, it may be shared, in which case changing it will be reflected in ALL of the maps that it's shared with. Make sense? Title: Re: Rescaling maps, axes, and factors Post by: Three77 on January 24, 2015, 07:28:31 PM I think I understand.
So, for example, I am looking at LDRXN with a factor of 0.0238438 for both the CH and CA boxes. If I'm reading what you've described correctly it would be no problem to change the rpm values of the CH box from Code: 1000, 1500, 1750, 1950, 2250, 2500, 3000, 3500, 4000, 4500, 5000, 5500, 5700, 5900, 6100, 6700 Code: 1000, 1720, 2000, 2100, 2200, 2520, 3000, 3520, 4000, 4520, 5000, 5520, 5700, 6000, 6520, 6800 Other than referring to the FR, is there a simple way of seeing a preceding axis? Thanks much, DD! Title: Re: Rescaling maps, axes, and factors Post by: fknbrkn on January 24, 2015, 08:22:16 PM i think interpolating values by some kind of excel work is a better idea
Title: Re: Rescaling maps, axes, and factors Post by: Three77 on January 25, 2015, 12:09:41 PM i think interpolating values by some kind of excel work is a better idea This sounds like a better way to me as well, only I don't feel like I have a understanding of how to best go about it. Do you happen to have any examples? Title: Re: Rescaling maps, axes, and factors Post by: adam- on January 25, 2015, 01:22:21 PM Why interpolate? If the axis are not related to other maps, interpolating is still changing the numbers, just an average between the two different files.
Chose whatever RPM values you want, with their corresponding values and it'll be fine! If the axis is shared with another map, then you'll need to rescale differently man! :) Title: Re: Rescaling maps, axes, and factors Post by: vwaudiguy on January 25, 2015, 05:20:41 PM Best way to find out what/how many other maps share the same axis as the map your modifying?
Title: Re: Rescaling maps, axes, and factors Post by: ddillenger on January 25, 2015, 05:25:55 PM Best way to find out what/how many other maps share the same axis as the map your modifying? Either look at a FULLY defined OLS, disassemble, read the FR, or determine if the axis is internal by looking at the hex. Title: Re: Rescaling maps, axes, and factors Post by: vwaudiguy on February 17, 2015, 08:40:41 PM Thanks, D
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