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PVINCE PVINCE is offline
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Default TRIMS VALUE - 01-14-2019, 11:53 AM

Hello,
New kid in the world of JB4, I discovered on my LEON CUPRA 300.
Very nice and for now no problem with.
I apologize in advance for my english translated by google.
I have a small question on the "TRIMS". Can you give me more information on this data please? How does it work? What is his unity?
Thank you in advance.
Vince
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George @ BMS's Avatar
George @ BMS George @ BMS is offline
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Default 01-14-2019, 01:39 PM

Trims is fueling compensation for the extra boost. 25% means the ECU is doing no compensation and higher than that value means extra fuel is being added. The higher the fuel trim value the more power the car is making typically. At a certain point the trims get maxed (small chance with stock turbo) and you will see the AFR run lean or map switch to map 4 with a last safety value of 2. You know at that point to back off the boost.

The fuel open loop value can drop trims. The higher the value the less the trim as it adds fuel rail pressure. The Cupra is sensitive to this and we typically run 50 or less as it triggers rail pressure faults at higher than this.


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PVINCE PVINCE is offline
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Default 01-14-2019, 09:28 PM

Thank you Georges for these explanations.
When I look at the map 1 and map 2 logs, we can see peaks at 35 for map 1 and 40 for map 2.
If we work on the map 6, and we pass the boost to 5.7, leave on a trims to 45 you seem it a good start value?
Do you know the max values ​​that can hold our original turbos?
I quickly made a curve with powerperfs, card 1 will announce a 334 hp. Does this sound correct to you?
Thx
Vince

Last edited by PVINCE; 01-14-2019 at 09:51 PM..
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George @ BMS's Avatar
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Default 01-15-2019, 05:27 AM

Quote:
Originally Posted by PVINCE
Thank you Georges for these explanations.
When I look at the map 1 and map 2 logs, we can see peaks at 35 for map 1 and 40 for map 2.
If we work on the map 6, and we pass the boost to 5.7, leave on a trims to 45 you seem it a good start value?
Do you know the max values ​​that can hold our original turbos?
I quickly made a curve with powerperfs, card 1 will announce a 334 hp. Does this sound correct to you?
Thx
Vince
Sounds a bit low.

Go 6.0 as a start if you on 98Ron.


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