The interesting reality is these numbers are only predictions - there is no specific hardware in the powertrain that can measure ACTUAL delivered engine torque. However, the predictions are extremely accurate so long as the mathematical model behind them is correct. Initially implemented as a series of 78 three dimensional "coefficient" tables located in the ECM, they have grown to become the cornerstone of everything from idle control, to boost control, and things like the way the accelerator pedal feels in the vehicle. The end result is commanded timing, throttle blade position, and a host of other things are directly affected by how much power the engine is predicted to be making. The so-called ECM power-reported numbers are the end result of these calculations.
These tables describe how manifold pressure, measured airflow, timing advance, and even the commanded fuel ratio affect the engine torque output under all operating conditions. As vehicles are modified away from the factory configuration, it is important to keep this model accurate by adjusting the coefficient tables.
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Testimonials
I was suffering for the transmission shudder had the tranny flushed then purchased the tune from Trifecta, I own a 2018 Chevy Colorado ZR2, this truck is amazing with this tune.…Best thing I've bought for my buick. turbo spools up quick and much faster. Easy to flash took under 20 mins.I have had a few of the Canyon's since they were reintroduced in 2015 (had 2015 SLT 4x4, 2016 SLT4x4 and now the wife drives 2018 Denali) and I have always hated the way it seems…A must buy for this car, it is simply a new beast. I have it paired with the GFB DV+ T9363 and it screams down the road. If you think the tune is good, (and it is, get it!), then…Absolutely worth every penny. Much better shifting pattern, throttle response, and torque. I wish Trifecta were a little more transparent with information on upcoming products and …Works great. Boost is up to 18, and transmission shifts better. I want to say it added 45 rwhp, because of the 5 extra pounds Of boost.. if it traps 114-115 mph though the 1/4…Before the tune my car was really sluggish. didn't wanna move and if you did push the gas it would take a few seconds for it to actually take off. now that the tune is installed…Absolutely 100% great customer service, would definitely recommend to anyone looking for a great quality tune for their car!Thank you Trifecta! My Colorado is bone stock. I added the Trifecta tune and couldn’t believe the improvements. I’m a old guy so I run almost always in Eco mode. My daily driving…I am creating an odd toy. The difference has been amazing. Gained 4 tenths in the qtr. And still getting 35 plus overall mpg. THANKS looking forward to future mods.2018 Colorado 3.6L Advantage+ AFM disabled. Only had tune for two days now and definately can tell a difference. No more shift lags when taking off from a stop. The throttl…I have had more fun with my Cruze in the last couple of weeks since switching to Trifecta than I have had in years. Even after being tuned before, this is above and beyond. The …I was suffering for the transmission shudder had the tranny flushed then purchased the tune from Trifecta, I own a 2018 Chevy Colorado ZR2, this truck is amazing with this tune.…Best thing I've bought for my buick. turbo spools up quick and much faster. Easy to flash took under 20 mins.I have had a few of the Canyon's since they were reintroduced in 2015 (had 2015 SLT 4x4, 2016 SLT4x4 and now the wife drives 2018 Denali) and I have always hated the way it seems…A must buy for this car, it is simply a new beast. I have it paired with the GFB DV+ T9363 and it screams down the road. If you think the tune is good, (and it is, get it!), then…Absolutely worth every penny. Much better shifting pattern, throttle response, and torque. I wish Trifecta were a little more transparent with information on upcoming products and …Works great. Boost is up to 18, and transmission shifts better. I want to say it added 45 rwhp, because of the 5 extra pounds Of boost.. if it traps 114-115 mph though the 1/4…Before the tune my car was really sluggish. didn't wanna move and if you did push the gas it would take a few seconds for it to actually take off. now that the tune is installed…Absolutely 100% great customer service, would definitely recommend to anyone looking for a great quality tune for their car!Thank you Trifecta! My Colorado is bone stock. I added the Trifecta tune and couldn’t believe the improvements. I’m a old guy so I run almost always in Eco mode. My daily driving…I am creating an odd toy. The difference has been amazing. Gained 4 tenths in the qtr. And still getting 35 plus overall mpg. THANKS looking forward to future mods.2018 Colorado 3.6L Advantage+ AFM disabled. Only had tune for two days now and definately can tell a difference. No more shift lags when taking off from a stop. The throttl…I have had more fun with my Cruze in the last couple of weeks since switching to Trifecta than I have had in years. Even after being tuned before, this is above and beyond. The …prevnext -
By TRIFECTA Performance •
TRIFECTA: ECM Calculated Horsepower and TorqueFor years now, GM engine controller modules (ECMs) have had the necessity to determine how much torque the engine is making, largely for drivetrain "torque management" operations. These are called torque output predictions, and they became a heck of a lot more important once GM switched to "torque based" engine management strategies (in Delphi variants, first with the E83 controller, followed by the E39, then the E78 controller used in our LUJ/LUV Cruze and Sonic vehicles) - a switch that was needed to properly support factory turbocharged engines.
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