Ralliart Evo 7 rom on stock evo 7 ecu?
Hi
As has often been stated you should not flash the image of one ROM from one ECU to another. You should only copy individual maps, ie High octane fuel.
The Ralliart ECUs I have seen have different timing, fuel and boost maps, and scaling of the load ranges to 300. They also have boost cut disabled, which I think is one area you should not copy. The maps are fairly generic, but should be safe, you should really use a wideband and logging software though.
MB
As has often been stated you should not flash the image of one ROM from one ECU to another. You should only copy individual maps, ie High octane fuel.
The Ralliart ECUs I have seen have different timing, fuel and boost maps, and scaling of the load ranges to 300. They also have boost cut disabled, which I think is one area you should not copy. The maps are fairly generic, but should be safe, you should really use a wideband and logging software though.
MB
Hi
As has often been stated you should not flash the image of one ROM from one ECU to another. You should only copy individual maps, ie High octane fuel.
The Ralliart ECUs I have seen have different timing, fuel and boost maps, and scaling of the load ranges to 300. They also have boost cut disabled, which I think is one area you should not copy. The maps are fairly generic, but should be safe, you should really use a wideband and logging software though.
MB
As has often been stated you should not flash the image of one ROM from one ECU to another. You should only copy individual maps, ie High octane fuel.
The Ralliart ECUs I have seen have different timing, fuel and boost maps, and scaling of the load ranges to 300. They also have boost cut disabled, which I think is one area you should not copy. The maps are fairly generic, but should be safe, you should really use a wideband and logging software though.
MB
I don't know why that would be funny, the ROM files do look to be compaitiable, but there are many instances where complete ROMs are flashed from one car to another and the recipient car is unable to start. Good, that you haven't suffered this, but it is not a recommended thing to do.
Check out the "If you have to ask..." thread.
MB
Check out the "If you have to ask..." thread.
MB
Hi
As has often been stated you should not flash the image of one ROM from one ECU to another. You should only copy individual maps, ie High octane fuel.
The Ralliart ECUs I have seen have different timing, fuel and boost maps, and scaling of the load ranges to 300. They also have boost cut disabled, which I think is one area you should not copy. The maps are fairly generic, but should be safe, you should really use a wideband and logging software though.
MB
As has often been stated you should not flash the image of one ROM from one ECU to another. You should only copy individual maps, ie High octane fuel.
The Ralliart ECUs I have seen have different timing, fuel and boost maps, and scaling of the load ranges to 300. They also have boost cut disabled, which I think is one area you should not copy. The maps are fairly generic, but should be safe, you should really use a wideband and logging software though.
MB
1. Fuel - High and low Octane Fuel Map
2. Timing - High and low octane ignition map
3. Turbo - Boost desired engine load 1 and 2, Boost limit, boost cut delay timer, boost control offset
The rest seems to be same between ralliart and stock ecu.
Also, wat's the meaning of Boost desired engine load 1 and 2, Boost cut delay timer, Boost control offset? If i already have a EBC installed, does it still applicable?
Thanks
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Boost offset and boost desired engine load are for boost control so will have no effect as you have an EBC. Boost cut anf boost cut delay are there to stop you exceeding a given boost value. The ralliart setup essentially eliminates boost cut, most people think this is a bad thing. Try setting boost limit to 280 and boost cut timer to 100, this is roughly equal to 26 psi boost, so should be OK for a stock turbo on pump gas, with 1 second delay.
MB
MB
Boost offset and boost desired engine load are for boost control so will have no effect as you have an EBC. Boost cut anf boost cut delay are there to stop you exceeding a given boost value. The ralliart setup essentially eliminates boost cut, most people think this is a bad thing. Try setting boost limit to 280 and boost cut timer to 100, this is roughly equal to 26 psi boost, so should be OK for a stock turbo on pump gas, with 1 second delay.
MB
MB
Stock boost cut delay timer - 1000ms
Stock boost limit
RPM %
500 230
1000 230
1250 230
1500 230
2000 230
2500 230
3000 220
3500 210
4000 210
Ralliart boost cut delay timer - 3000ms
Ralliart boost limit
RPM %
500 319
1000 319
1250 319
1500 319
2000 319
2500 319
3000 319
3500 319
4000 319
Custom flash boost cut delay timer - 1638375ms
Custom flash boost limit
RPM %
500 319
1000 319
1250 319
1500 319
2000 319
2500 319
3000 319
3500 319
4000 319
Hi
You would have to ask the custom tuner why they expose thier clients to potential engine failure. The same goes for Ralliart, but it might be harder to track down the person who maped that ECU.
My advice is set all cells in boost limit to 280, timer to 1000.
If you have boost cut delay timer of 1638375ms, does the tune also come with the horrid block of 7s and no graduation in the timing map?
MB
You would have to ask the custom tuner why they expose thier clients to potential engine failure. The same goes for Ralliart, but it might be harder to track down the person who maped that ECU.
My advice is set all cells in boost limit to 280, timer to 1000.
If you have boost cut delay timer of 1638375ms, does the tune also come with the horrid block of 7s and no graduation in the timing map?
MB
Hi
You would have to ask the custom tuner why they expose thier clients to potential engine failure. The same goes for Ralliart, but it might be harder to track down the person who maped that ECU.
My advice is set all cells in boost limit to 280, timer to 1000.
If you have boost cut delay timer of 1638375ms, does the tune also come with the horrid block of 7s and no graduation in the timing map?
MB
You would have to ask the custom tuner why they expose thier clients to potential engine failure. The same goes for Ralliart, but it might be harder to track down the person who maped that ECU.
My advice is set all cells in boost limit to 280, timer to 1000.
If you have boost cut delay timer of 1638375ms, does the tune also come with the horrid block of 7s and no graduation in the timing map?
MB
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Mohamed Maher
Evo X Engine Management / Tuning Forums
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Jul 8, 2020 04:27 PM








