If your knock sensor is pulling 2-3 degrees of spark it isn't actually knocking. It is a pre-knock event. The microphones are way more sensitive than you think. Just in the same way it can add timing before it actually knocks. You need to not think of positive KR activity as knock because it...
You don't understand how it works. There is an inferred octane number that is set and steers the boost and timing mapping. The knock sensors can add or subtract timing over the base map. If you put 87 octane in the truck it doesn't constantly pull 7 degrees out with the knock sensors like...
This isn't how it works at all. The knock sensors will dial back the base spark if there is more than 3 degrees of spark being pulled. This will also cause the boost to be dialed back. By the same token, if the the knock sensors are constantly adding timing, it will bump up the base spark and...
Yes we have had a lot of miles on our development truck with our turbos on it as well. EPA requires 100K worth of emissions life on components. Questions will be asked one day on how cat temps are being managed. It is just a matter of time.
You want to go there? Okay let's go there. Let's dispel some myths on a few subjects. I will address pump gas tuning here, because we all know using higher E blends makes it easy to produce big power safely......
You talk about heat soak. The biggest contributor to heat soak is ELEVATED...
If you use the tow/haul function with the Gearhead tune it does pretty good... Get the "tow safe" if you are worried about getting things too hot on the performance file. It is also a good daily driver file with about 30 hp over stock.
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I need to make a video about how and why dynos give high or low numbers. Too much to go into here. How does the truck feel compared to stock?
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Gearhead also accounts for octane and drops boost automatically if you can't run enough timing so you don't melt the factory cats.... 220000 rpms is the turbo design limit.
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Gearhead is the only tuner that pays attention to the maximum turbo speed that should be run. Anything over 220000 rpms is shortening the life of the turbos. That's why the Gearhead tunes feel like the power is dropping off at the higher rpms. If you want more, get more turbo.
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Under certain conditions intakes help turbos stay in their maps and perform better. Turbo adapters don't hurt either.
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Tow tune is easy, just have to turn down max power a little. You would still use tow mode when towing. The trans tuning in the raptor firms shifts without binding, changes a few shift points, and allows max power without slipping the transmission at wot. Nothing too crazy because the 10r...
Intakes show their worth when you are at the right edge of a compressor's map. Also, the higher you go in altitude, the more an intake makes a difference because you start eliminating the "false altitude" a compressor sees from an intake restriction that adds to the actual reduction in air...
Okay I was asked to come over here and answer any questions you guys may have.
1. Raptors usually make right at 360-367 on our dyno bone stock after octane learning on 93 octane.
2. Losses of restriction like intercoolers and intake systems will gain more power in stock tuned trucks because...
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