2018 Shelby 755hp SuperSnake F150 dyno isses

Guys,

we wanted to baseline dyno a new 2018 Shelby SSnake F150 but something is limiting power on dyno. No matter what gear we tried it remains the same with an ultraflat torque curve at 390 ft-lbs although boost and AFR are exactly the same as on street. Great power on street though...

best would be to dyno on 5th gear, rev limit kciks in slightly before speed limit in that case.

it feels like a dyno protection mode kicks in but torque source does not give any real hints and stays blank.

anybody ever had that?

AT?

IAT down and in absolutely safe normal limits!

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Originally Posted by ccrp

Guys,

we wanted to baseline dyno a new 2018 Shelby SSnake F150 but something is limiting power on dyno. No matter what gear we tried it remains the same with an ultraflat torque curve at 390 ft-lbs although boost and AFR are exactly the same as on street. Great power on street though...

best would be to dyno on 5th gear, rev limit kciks in slightly before speed limit in that case.

it feels like a dyno protection mode kicks in but torque source does not give any real hints and stays blank.

anybody ever had that?

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whos tune?

stock tune, done by Whipple

Quote:

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Originally Posted by ccrp

stock tune, done by Whipple

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Call and talk to Jeff Tiller. The guy that does the tuning for the all the new stuff is actually a Ford engineer. According to Jeff he can't see the tunes anymore because the way they are encrypted. At least that's what he tell me. For them to do any changes, if they will, you would need their Tomahawk.

i could at least read out the tune with latest HPtuner version, on street it does what is programmed for advance and Lambda. Do you have any contact details of Jeff?

Quote:

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Originally Posted by ccrp

i could at least read out the tune with latest HPtuner version, on street it does what is programmed for advance and Lambda. Do you have any contact details of Jeff?

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(559) 442 - 1261

Quote:

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Originally Posted by ccrp

stock tune, done by Whipple

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Whipple has a calibration update to address the limiting.

same issue here. cant do a baseline pull on a 2018 F150 Super Snake cause throttle won't open. is it possible to enable a dyno mode?

You need the latest calibration from whipple to address the throttle limiting.

Will putting it dyno mode take care of this? I'm having the same problem on a stock 19.

Did you disable advance trac?

Does anybody have a read from one of these? I'd like to eyeball it.

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Originally Posted by Nxbusa

Does anybody have a read from one of these? I'd like to eyeball it.

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same, really interested in studying it.