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Discussion Starter #1
Just curious if anyone knows how the car decides what RPM to hold? Stock tune, only a DV+ installed, Sport Mode, Traction Control Off. Sometimes I get 2400 RPM sometimes I get 2100 RPM, is this coolant temp based? ie the warmer the coolant the more RPM the car will let you have? Thanks in advance!
 

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It's more about how long, if you do your own tuning there are tables you can adjust for it. I think I bumped mine up to 60 seconds not that I,m gonna sit there brake boosting for that long. On top of I don't do it enough to worry about it, it's rather hard on the drivetrain.
 
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It's more about how long, if you do your own tuning there are tables you can adjust for it. I think I bumped mine up to 60 seconds not that I,m gonna sit there brake boosting for that long. On top of I don't do it enough to worry about it, it's rather hard on the drivetrain.
Interesting, didn't realize you can adjust your tune for that. I will have to reach out to Torrie

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Usually when DIY tuners find out something like this and post about it, next thing you know many of these tuners all start advertising it as a feature. Haha.

I found my Fusion just holds it around 2500 RPM no matter how much throttle I give it with the brakes firmly holding the vehicle.
 

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I brake boost a lot during racing season and on top of getting better at the whole staging and launch procedure over time, I’ve noticed that my car seems to “figure out” what I’m doing and allows a longer dwell on boost than normal.
 

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Also that setting in HPTuners wasn't available until like maybe 1 year ago. So for the first ~2 years of tuning the Fusion Sport, many settings weren't available. That's what's frustrating about HPTuners vs SCT sometimes.
 

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When I brake boost for more than 2 seconds I feel like the safety nannies kick in somehow and restrict the power. The car bogs off the line and I get a terrible launch. Also when I roll into the throttle instead of just smashing the gas pedal it feels quicker off the line also

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When I brake boost for more than 2 seconds I feel like the safety nannies kick in somehow and restrict the power. The car bogs off the line and I get a terrible launch. Also when I roll into the throttle instead of just smashing the gas pedal it feels quicker off the line also

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Yes there is a timer for this. You can raise it with a tune to allow for longer brake boosting.
 

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Stock its set at .90 seconds. That means you stand on the brake n gas at the same time it will only go for that long before it closes. I set mine at 60 seconds, works a lot better.
 

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Is this available for editing with SCT tables or do I need HPtuber

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Also that setting in HPTuners wasn't available until like maybe 1 year ago. So for the first ~2 years of tuning the Fusion Sport, many settings weren't available. That's what's frustrating about HPTuners vs SCT sometimes.
Unleashed messing with that yet? Would love to have it lengthened. I don't bother brake boosting on the street, as it is to much of a PIA
to coordinate with a traffic light. Would like it 10 seconds even, without it doing whatever it does normally, to thwart you.
 

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Unleashed messing with that yet? Would love to have it lengthened. I don't bother brake boosting on the street, as it is to much of a PIA
to coordinate with a traffic light. Would like it 10 seconds even, without it doing whatever it does normally, to thwart you.
It seems to me like it would almost be ideal if you could set both the length of time and, say, a target hydraulic pressure in the TC. I imagine that latter part isn't possible, but that seems like it would be pretty much ideal.
 

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It's probably in SCT Advantage. Not sure as I haven't used SCT to tune anything since 2016.
It,s not supported on all models though, Guy at work with the 16 Fusion 2.0 doesnt have it in the tables.
 

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Thank you for posting that @metroplex ! That makes me really want to get HPT. I'm wondering what's in some of those other tabs, like Turbo and Spark and Torque Management. Makes me really want to get this.
More than you can imagine, LOL.
 
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Stock its set at .90 seconds. That means you stand on the brake n gas at the same time it will only go for that long before it closes. I set mine at 60 seconds, works a lot better.
Interesting stuff, thanks for providing specific figures and evidence for this. Nine tenths of a second seems like an awfully short time; is there a way to bump that up without getting a tune?
 

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Interesting stuff, thanks for providing specific figures and evidence for this. Nine tenths of a second seems like an awfully short time; is there a way to bump that up without getting a tune?
No
 
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