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View Full Version : Converting HP Tuners VE table values to TunerPro



evilstuie
11-19-2017, 02:36 PM
Hi All,

Does anyone know the conversion rate for a HP Tuners VE table into the TunerPro?

Looking at the HP Tuners program, it can show the VE cell values in percentage or number.
TunerPro cells units are in Grams * Kelvin/kpa which doesn't really make sense to me, as Kelvin I'm assuming is a temparature variable, and the KPA is one of the axis.
Could someone please explain the calculation that occurs so that I can convert these tables to input from HPT into TunerPro?

Thanks.

dzidaV8
11-20-2017, 12:38 PM
What OS/car are we talking about? The sreenshot is too bad to see that.

dzidaV8
11-20-2017, 02:53 PM
OK, I can see it's 2088 OS.

X/5120 = g*K/kPa
(X/0.1767711646826163)/Y = VE %

X - raw VE value,
Y - cylinder volume in cc

evilstuie
11-20-2017, 05:45 PM
Awesome.
Thanks for that.
Is the 5120 value specific to a particular engine (e.g.SBC350), i.e. would I need to adjust the 2 numerical values or are they constants?

evilstuie
11-21-2017, 04:11 AM
OK, I can see it's 2088 OS.

X/5120 = g*K/kPa
(X/0.1767711646826163)/Y = VE %

X - raw VE value,
Y - cylinder volume in cc

Also I take it cylinder volume is the total cylinder volume e.g. cylinder volume plus combustion chamber volume? *Cyl radius^2 x stroke length)+ 64cc chamber volume

dzidaV8
11-21-2017, 04:54 AM
5120 is value specific to OS, but all GM OBD2 VPW PCMs should have it the same way.
Cylinder volume is the value in calibration {B0104 - Cylinder Volume} and it should match the engine cylinder displacement, NOT including combustion chamber.