Possum Link Boost Table

[RAYDEO]

after talking to Mattapo, I understand that the numbers on this table are how high the ecu will allow the boost to get.

but after googling a kpa to psi and bar converter, it says 200kpa is 29psi or 2 bar, the car is boosting less than half of this,

so am i reading this incorectly or whats going on?

[funkytown]

that might be absolute pressure, so you less 1bar of of atmosphere and that would give you the change over atmosphere. so around 14.5psi. and 16.5 @ 225KPA (112.5)

im just guessing though

[gotasuby]

links are 100kpa is 0 psi or atmosphere. 200kpa is 14.7 psi and 250kpa is 22psi

[funkytown]

zing! i was right ;D

[RAYDEO]

brilliant, cheers guys! ;D

[hijacka]

Straight from the link booklet manual.The last part explains your question.

Boost target values Boost target values: An extra row of sixteen zones has been added to the zoning system to hold the target boost value for each 500rpm interval between 500and 8000rpm. This allows the boost "curve"to be tailored to suit the application. This flexibility may be used to hold the boost at lower levels through the rpm mid range to suppress detonation and then allow to rise at higher rpm where detonation is less likely. These target values may be changed by using either the EDIT function at any time or using the Boost =xx mode for making changes while actually operating in that zone(rather like ZONE FUEL or ZONE IGNITION). note that any changes are temporary until STORED.

The displayed values are shown in KPA(Absolute)and may be cross refenced using the following table. Note that the values must always be greater than 100 since below 100 represents vacuum.

KPA PSI

100 0

120 3

140 6

160 9

180 12

200 15

220 18

240 21

250 23

[hijacka]

 RAYDEO said:

after talking to Mattapo, I understand that the numbers on this table are how high the ecu will allow the boost to get.

but after googling a kpa to psi and bar converter, it says 200kpa is 29psi or 2 bar, the car is boosting less than half of this,

so am i reading this incorectly or whats going on?

What seems to be the problem with it ???

You do realise you have to adjust the WG BASE, WG SENS, WG RPM to get the boost right if your using the factory controller.

[marc]

 hijacka']

[quote name='RAYDEO said:

after talking to Mattapo, I understand that the numbers on this table are how high the ecu will allow the boost to get.

img]http://i32.photobucket.com/albums/d14/ris4ray/boost.png[/img]

but after googling a kpa to psi and bar converter, it says 200kpa is 29psi or 2 bar, the car is boosting less than half of this,

so am i reading this incorectly or whats going on?

What seems to be the problem with it ???

You do realise you have to adjust the WG BASE, WG SENS, WG RPM to get the boost right if your using the factory controller.

isant what your looking at the map/boost limit table not boost controll lol? (could be wrong as im from G4 world lol but sure looks that way!)

[Guest]

Nope thats the boost taget table for given rpm

[marc]

 Ichi Ban said:

Nope thats the boost taget table for given rpm

sweet, looks similar to the G4 map limit table lol.