I'm trying to be nice. Show me ANYWHERE that says you NEED a tune if you put a CAI and High-flow downpipe on a modern computer controlled engine.
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I'm trying to be nice. Show me ANYWHERE that says you NEED a tune if you put a CAI and High-flow downpipe on a modern computer controlled engine.
Iām in the same camp. I only tuned my 2013 ST after six months of driving it stock and paying attention to the forums until a reasonable solution was discussed at length. I understood at that time that a Stage 1 tune (FStune using a COBB Accessport) was all I needed for my needs. It woke up the ST and made it a rocket without any other mods needed.<snipped>
Just my opinion. I must be getting old.
About every platform out there. Iāve dealt with tuned and modified modern computer controlled sports cars for years. My 2011 mustang. My 2015 Subaru wrx STI. My 2017 Mustang GT350. My 2019 Subaru wrx STI. ALL require tuning when you increase airflow on the front end with the intake system change after the MAF sensor which is mounted in the airbox or pipe leading into the throttle body of a N/A car or the turbo of a turbo charged car. On the exit side when you open up and exhaust coming off the header or headers with a larger pipe and higher flowing CAT convertors you need to accommodate this as well with a tune. You run lean with fuel otherwise and will burn pistons. The ECU can only accommodate so much in The stock fuel table. The intake side with the MAF is the most sensitive to changes. Donāt believe me. Go ahead and just swap parts in without tuning. Watch your motor go south and Ford voiding your warranty. Bolt one part on there aftermarket like that and watch your warranty go up in smoke when it blows up. Iāve seen numerous idiot kids buy a wrx or STI and bolt on a downpipe or a CAI without tuning. They drive around and kill the motor in short order. Suite yourself though. Itās your money to waste. Just donāt sell others on your foolishness. Iām not talking out of my backside on this either. Iām a former mechanic turned mechanical engineer. Iāve been working on engines and building them for many years.I'm trying to be nice. Show me ANYWHERE that says you NEED a tune if you put a CAI and High-flow downpipe on a modern computer controlled engine.
Probably, but given time, tuners will safe crack it.Didn't Ford already say that the ECU's are going to be even more locked down and harder to tune third-party?
This ^^^. You can waste money on a d/p and intake, but on turbocharged engines, a tune pulls these mods together.About every platform out there. Iāve dealt with tuned and modified modern computer controlled sports cars for years. My 2011 mustang. My 2015 Subaru wrx STI. My 2017 Mustang GT350. My 2019 Subaru wrx STI. ALL require tuning when you increase airflow on the front end with the intake system change after the MAF sensor which is mounted in the airbox or pipe leading into the throttle body of a N/A car or the turbo of a turbo charged car. On the exit side when you open up and exhaust coming off the header or headers with a larger pipe and higher flowing CAT convertors you need to accommodate this as well with a tune. You run lean with fuel otherwise and will burn pistons. The ECU can only accommodate so much in The stock fuel table. The intake side with the MAF is the most sensitive to changes. Donāt believe me. Go ahead and just swap parts in without tuning. Watch your motor go south and Ford voiding your warranty. Bolt one part on there aftermarket like that and watch your warranty go up in smoke when it blows up. Iāve seen numerous idiot kids buy a wrx or STI and bolt on a downpipe or a CAI without tuning. They drive around and kill the motor in short order. Suite yourself though. Itās your money to waste. Just donāt sell others on your foolishness. Iām not talking out of my backside on this either. Iām a former mechanic turned mechanical engineer. Iāve been working on engines and building them for many years.
Yep. My f150 w/ 3.5 and 35ā MT tires hauls a**. My wife wont need anything faster than the 2.7 in stock form lol.Maybe i'm getting old but imo the 2.7 is fast enough as it is. My truck has the 3.5 which isnt that different. As soon as the turbos kick in its a rocket. Every time I step on it I think a vehicle this size should not be this fast.
So just your opinion then?About every platform out there. Iāve dealt with tuned and modified modern computer controlled sports cars for years. My 2011 mustang. My 2015 Subaru wrx STI. My 2017 Mustang GT350. My 2019 Subaru wrx STI. ALL require tuning when you increase airflow on the front end with the intake system change after the MAF sensor which is mounted in the airbox or pipe leading into the throttle body of a N/A car or the turbo of a turbo charged car. On the exit side when you open up and exhaust coming off the header or headers with a larger pipe and higher flowing CAT convertors you need to accommodate this as well with a tune. You run lean with fuel otherwise and will burn pistons. The ECU can only accommodate so much in The stock fuel table. The intake side with the MAF is the most sensitive to changes. Donāt believe me. Go ahead and just swap parts in without tuning. Watch your motor go south and Ford voiding your warranty. Bolt one part on there aftermarket like that and watch your warranty go up in smoke when it blows up. Iāve seen numerous idiot kids buy a wrx or STI and bolt on a downpipe or a CAI without tuning. They drive around and kill the motor in short order. Suite yourself though. Itās your money to waste. Just donāt sell others on your foolishness. Iām not talking out of my backside on this either. Iām a former mechanic turned mechanical engineer. Iāve been working on engines and building them for many years.
No. Facts. Tuners will tell you as well. Just ask any of them. Ask 5 star since they tune the 2.7 and they will tell you. Its been proven by people who try to run these parts on a stock tune when their engine blows up. Itās simple. The engine needs to maintain a correct fuel/air ratio under all conditions. These mods cause it to run lean which leads to destruction. With a turbo engine itās even more critical as the fuel/air ratio goes into rich condition under boost. The engine only adjusts so much based on the parameters put in by the manufacturer. They donāt factor in a large increase with airflow in the stock tuning strategy. Fordās tuning strategy is to account for various octanes used and reduce timing accordingly but itās not for covering a large air flow increase.So just your opinion then?
Sure about that? Intercooler for sure wouldnāt require a tune. Cold air intake wouldnāt either. Down pipes probably wouldnāt require a tune either unless you need to turn off readiness for the 2nd cat. Depending on the cat and secondary o2 locationYou canāt add any of those components first without a tune
Respectfully, thatās bullshit. These ECUs can learn to adjust for increased airflow and efficiency.No. Facts. Tuners will tell you as well. Just ask any of them. Ask 5 star since they tune the 2.7 and they will tell you. Its been proven by people who try to run these parts on a stock tune when their engine blows up. Itās simple. The engine needs to maintain a correct fuel/air ratio under all conditions. These mods cause it to run lean which leads to destruction. With a turbo engine itās even more critical as the fuel/air ratio goes into rich condition under boost. The engine only adjusts so much based on the parameters put in by the manufacturer. They donāt factor in a large increase with airflow in the stock tuning strategy. Fordās tuning strategy is to account for various octanes used and reduce timing accordingly but itās not for covering a large air flow increase.
It isnāt a waste of money. But definitely not taking full advantage. You still get better performance. No, you arenāt going to blow up your engine fromThis ^^^. You can waste money on a d/p and intake, but on turbocharged engines, a tune pulls these mods together.
You are correct, most of the easy mods (intercooler, intake) to a modern turbo car don't require a re-tune, they'll just use the MAF reading to determine that it needs to throw more fuel at the equation and be done with it. Downpipes is usually where you want to get a retune, as the ECU will typically need to change the wastegate settings based on the higher flow of exhaust, and for the possibility of O2 errors giving you CEL's as you mentioned.Respectfully, thatās bullshit. These ECUs can learn to adjust for increased airflow and efficiency.