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Performance, Tuning, and (LEGAL) RacingPost discussions about increasing performance, capabilities, and racing.
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Take a look at the four lspi load limit tables (low, nominal, high, and max). It will always revert to the lowest torque or load limit table. There’s a torque limit vs rpm as well that could limit it.
I have raised those tables too. I kept the low and nominal stock in case I get bad gas or my wife puts something other than 93 in it. When I log Inferred Octane, it shows 91, so it should be using the high table. I’m getting a pretty steady 20 psi of boost at WOT. I need to get a better log file. It’s hard to find a place to go WOT around where I live.
There’s a new shop with a dyno. I need to go and run a few pulls.
Is it normal to get a message like this when reading the stock file from a 2021+ F150? I did send my PCM in to have it unlocked by HP, and I've also updated my PCM with FDRS at least once while I've owned my truck, but I haven't done any PCM software updates since my PCM was unlocked.
Is it normal to get a message like this when reading the stock file from a 2021+ F150? I did send my PCM in to have it unlocked by HP, and I've also updated my PCM with FDRS at least once while I've owned my truck, but I haven't done any PCM software updates since my PCM was unlocked.
Im pretty sure that HPTuners does not read the PCM on the 2021+ trucks. It downloads the base files from HPTuners. So its just telling you that if you had a tune on the truck prior to "reading" the tune, it will be overwritten when you go to flash it.
I’ve spent years learning the modern ford stuff. I just picked up a 2020 Roush nitemare and having a blast starting out from scratch with the Roush tune and applying everything I’ve learned! I’m actually using pcmtec now, though.
Then why are tuners selling “adaptive learning octane” tunes? It confuses me too.
Generally adaptive tunes wont make as much peak power even if OAR is maxed out. If you were running 93 octane and then put in a crappy tank of 87 and started getting a ton of knock, the tune might not adapt fast enough to where it uses the nominal and low LSPI tables to limit air load to safe levels. So usually the high LSPI table wouldnt be as aggressive on a adaptive tune so in the off chance something like that happened your not pushing the absolute limits of spark at realy high air loads
Generally adaptive tunes wont make as much peak power even if OAR is maxed out. If you were running 93 octane and then put in a crappy tank of 87 and started getting a ton of knock, the tune might not adapt fast enough to where it uses the nominal and low LSPI tables to limit air load to safe levels. So usually the high LSPI table wouldnt be as aggressive on a adaptive tune so in the off chance something like that happened your not pushing the absolute limits of spark at realy high air loads
Matt's (Gearhead) new ao tune is as fast if not faster than any dedicated octane tune I have.
10-06-2023, 11:19 PM
