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#1
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LV8???- Please explain
Can someone please explain to me what LV8 is on the scan tools and exactly what it means to the performance/tuning of the engine? The scan master shows it as grams of air per cylinder and the turbolink shows it as filter load variable. TIA, Joseph.
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#2
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Re: LV8???- Please explain
From the TurboLink Help file (How to ... Interpret the data section)
Quote:
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Ken Mosher 1987 GN original owner 650+ HP Black 2015 BMW 328xi XDrive wagon 2012 Volkswagen Tiguan (the Tig!) Night Blue Met (sold) 2006 Trailblazer SS Red Jewel Tint 395 HP AWD (sold) 2014 Silverado LTZ Crew 4WD 2012 Honda VFR 1200F Tahitian Blue (sold) 2015 BMW S1000R Racing Red 2013 Honda CBR500R Red (wife's bike) 2014 Triumph Bonneville T100 2003 Harley Davidson V Rod Anniversary Edition |
#3
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Re: LV8???- Please explain
Thank you, that makes alittle more sense now. My L8 is quite a bit higher in the idle than the quick reference. Will keep plugging away
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#4
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Re: LV8???- Please explain
OK, so I guess my new question is if your L8 is higher per say in idle. Does that mean it is a bad thing because there is more of a load on the engine or good because more air is going through it???? TIA, Joseph.
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#5
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Re: LV8???- Please explain
LV8 is actually more complicated than the HELP file would indicates (it's actually a couple of scalars, the MAF table and RPM all in a formula ... *digs around* ...)
I think this is right for 86/87 stock programs... LV8 = (MAF cell value/256) X RPM X LV8 Constant X (MAF Table Constant/256) From looking at the code over in the ECM section, RPM is actually the crank reference, so it's converted, but essentially it's an RPM type value. Basically, if you look at it, it's almost like manifold pressure ... kind of a way to compute air charge and load on the engine. It looks to be kind of a speed density number using MAF and engine RPM to drive it. It'd work pretty good at low loads... it looks as if it is used to determine "gross timing and fueling" before the various trims/PEs and such kick in. From notes I found:
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Ken Mosher 1987 GN original owner 650+ HP Black 2015 BMW 328xi XDrive wagon 2012 Volkswagen Tiguan (the Tig!) Night Blue Met (sold) 2006 Trailblazer SS Red Jewel Tint 395 HP AWD (sold) 2014 Silverado LTZ Crew 4WD 2012 Honda VFR 1200F Tahitian Blue (sold) 2015 BMW S1000R Racing Red 2013 Honda CBR500R Red (wife's bike) 2014 Triumph Bonneville T100 2003 Harley Davidson V Rod Anniversary Edition |
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