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3.5L TT but wrong body
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12,003 Posts
Any map you have is already tuned for 550's as long as you put the proper values in the Global Fuel Scalar. IIRC it's right around -25. Using the GFS takes a flat percentage off the whole fuel map so you don't have to make changes to every cell. You may need to play with the percentage until you have 0 fuel trims stored in the ECU but -25 should get you close.

There is a 0 map for the 550's on Dynojets website but you still have to enter the fuel scalar in the Device Configuration.
 

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Its a Hyundai
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275 Posts
Any map you have is already tuned for 550's as long as you put the proper values in the Global Fuel Scalar. IIRC it's right around -25. Using the GFS takes a flat percentage off the whole fuel map so you don't have to make changes to every cell. You may need to play with the percentage until you have 0 fuel trims stored in the ECU but -25 should get you close.

There is a 0 map for the 550's on Dynojets website but you still have to enter the fuel scalar in the Device Configuration.
CrookedH ur the human dictionary/encyclopedia/google/everything for this website i love it lol do not no anything about these cars? lol
 

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3.5L TT but wrong body
Joined
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12,003 Posts
CrookedH ur the human dictionary/encyclopedia/google/everything for this website i love it lol do not no anything about these cars? lol
Lol, thx, I still got a lot to learn too though :)

Make sure you reset the ECU before you start the car up after adjusting the GFS
You should be able to start with a -25 but it may run a bit to lean so putting a
-28 as dynojet suggest may be better, as WOT with my mods, the car will run a
11.8-12.4 AFR
-28 would run leaner than -25 as it's removing 3% more fuel. DJ suggested -26, fwiw.

CrookedH, we have published a "zero" map to be used with the DW 550cc injectors on our website. Since you already have a map in your car, simply add 11% to all the cells below 1250rpm, and put -26% in the global fuel scalar. The rest of your map will stay the same. Should work out for you. :bigthumbup:

BTW, they run great in our GC! :)
 

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old guy
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767 Posts
In addition, I ended up at -30 global for evo 10 injectors with my aem. Should be the same for cmd I bet.
 
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