EVO8emUp

iTrader: (30)

05 Non-MIVEC


What's the difference between...

Max Wastegate Duty Cycle 1
Max Wastegate Duty Cylce 2
Max WastEgate Duty Cycle 3

and

Boost Desired Engine Load 1
Boost Desired Engine Load 2
Boost Desired engine Load 3

When I change these for controlling boost with the factory solenoid, do I have to change all 3, or can I just change #1 of MWDC and # 1 of BDEL?

mrfred

iTrader: (50)

Table #1 is the main table. Table #2 is not used by the ECU. Table #3 is used when the car exceeds the "Boost Limiting Vehicle Speed".

codgi

iTrader: (22)

This came out of your new delving? Or did i miss when you found this out before?

mrfred

iTrader: (50)

From my previous work. I'm sure about #1 and #3, but not entirely sure about #2. I see no calls to it in the code.

RazorLab

iTrader: (8)

#1 and #3 BDEL are exactly the same in stock roms however.

mrfred

iTrader: (50)

Make #3 different, set the Boost Limiting Speed to something small, and see what happens. :-) I think there are a number of features in the ROM that are not fully utilized.

Mr. Evo IX

iTrader: (5)

Mrfred, if #3 is used when the BLVS is exceeded couldn't this be used to reduce boost in taller gears if needed? Or what else happens when BLVS is exceeded?

mrfred

iTrader: (50)

It could be used that way. Crossing over the BLVS also affects the WGDC update interval. It could affect other things that I have not researched yet.

codgi

iTrader: (22)

How does it affect that interval? Increase/decrease or is that something else you have to poke at ?

mrfred

iTrader: (50)

Its user-settable. I can't remember if I posted it, but there are two settings for the interval, one for normal, and one for above BLVS. I think my two boost control mods list instructions to show both settings.