Boost Targeting Mode

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Boost Targeting Mode

by Dolfius » September 14th, 2019, 4:23 am

The option to toggle between a boost based/targeting mode as opposed to Load Target tuning only.
 
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Re: Boost Targeting Mode

by mituc » September 15th, 2019, 3:09 am

This is completely do-able with the current software. However, keep in mind that one of the ways to figure the cylinder pressure is load, because load tells you how much air gets in. Apart from telling you the mass of the air you have in a plenum with a well known volume, boost is just a measure of the resistance the engine fights back with when throwing air at it.
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Re: Boost Targeting Mode

by Dolfius » September 15th, 2019, 7:55 am

mituc wrote:This is completely do-able with the current software. However, keep in mind that one of the ways to figure the cylinder pressure is load, because load tells you how much air gets in. Apart from telling you the mass of the air you have in a plenum with a well known volume, boost is just a measure of the resistance the engine fights back with when throwing air at it.


Well, when I inquired about that via email, I was told this:
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Re: Boost Targeting Mode

by mituc » September 16th, 2019, 10:27 pm

The email you've got states that it doesn't support boost target tuning. However, if you look at the boost target more like at a boost limit, there's no problem accomplishing what you want.
I know because I did it.
2008 Cosmic Blue Mazda 3MPS
Build engine + WMI + GTX3071, ~476WHP @31-32PSI
2008 Icy Blue Mazda CX7
Stock engine, intake and exhaust (YES!!), GTX2867 gen2 + Autotech HPFP, self-tuned to 320-ish BHP
VersaTuner guru
 
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Joined: December 17th, 2011, 2:47 pm
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Re: Boost Targeting Mode

by Dolfius » September 17th, 2019, 7:03 am

mituc wrote:The email you've got states that it doesn't support boost target tuning. However, if you look at the boost target more like at a boost limit, there's no problem accomplishing what you want.
I know because I did it.


I suppose if your sw works like it's supposed to, and doesn't limit your load to 2, and doesn't make it run lean regardless of how much you adjust your maf sensor, then I'm sure it can be done, yes.
 
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Re: Boost Targeting Mode

by mituc » September 19th, 2019, 7:30 am

Dolfius wrote:I suppose if your sw works like it's supposed to, and doesn't limit your load to 2, and doesn't make it run lean regardless of how much you adjust your maf sensor, then I'm sure it can be done, yes.


That is correct.
However these cars with a cap to load 2 are rare occurrences. Yours is not one of them. So not relevant for this discussion...
2008 Cosmic Blue Mazda 3MPS
Build engine + WMI + GTX3071, ~476WHP @31-32PSI
2008 Icy Blue Mazda CX7
Stock engine, intake and exhaust (YES!!), GTX2867 gen2 + Autotech HPFP, self-tuned to 320-ish BHP
VersaTuner guru
 
Posts: 852
Joined: December 17th, 2011, 2:47 pm
Location: Iasi/Romania

Re: Boost Targeting Mode

by Dolfius » September 21st, 2019, 9:14 pm

mituc wrote:
Dolfius wrote:I suppose if your sw works like it's supposed to, and doesn't limit your load to 2, and doesn't make it run lean regardless of how much you adjust your maf sensor, then I'm sure it can be done, yes.


That is correct.
However these cars with a cap to load 2 are rare occurrences. Yours is not one of them. So not relevant for this discussion...


Dude WTF? My car IS one of them. Or have you forgotten already? :lol:
 
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Re: Boost Targeting Mode

by Dolfius » September 21st, 2019, 9:18 pm

mituc wrote:
Dolfius wrote:I suppose if your sw works like it's supposed to, and doesn't limit your load to 2, and doesn't make it run lean regardless of how much you adjust your maf sensor, then I'm sure it can be done, yes.


That is correct.
However these cars with a cap to load 2 are rare occurrences. Yours is not one of them. So not relevant for this discussion...


viewtopic.php?f=13&t=3288

Seem familiar?
 
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Re: Boost Targeting Mode

by Dolfius » September 21st, 2019, 9:29 pm

mituc wrote:
Dolfius wrote:I suppose if your sw works like it's supposed to, and doesn't limit your load to 2, and doesn't make it run lean regardless of how much you adjust your maf sensor, then I'm sure it can be done, yes.


That is correct.
However these cars with a cap to load 2 are rare occurrences. Yours is not one of them. So not relevant for this discussion...


"I'd like to see why the load plateaus at 2-ish with versatuner (is it commanded so or there's another limit/constraint?)."

How about this? ring any bells?
 
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