What is the top speed of a 2024 Mustang Dark Horse?

[Junkyard Dog]

Mine limited out at 151.4 mph on dyno in 5th gear @7,040rpm if that helps. Has Ford/Whipple tune installed

So the Whipple tune cut it off at that rpm?

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[gregrarnold]

When I bought the SC from Steeda they asked me if I wanted a Ford/Whipple or a Whipple version. The hardware is same except for Ford logos, the Ford/Whipple software has a speed limiter and the Whipple software does not. Wasn’t a big deal to me for real world driving, didn’t consider the Dyno thing until I put car on dyno and couldn’t figure out why it was cutting out at 7k rpm. Didn’t dawn on me until I saw the leaderboard, the dyno sheet doesn’t list wheel speed. Pic of leaderboard is hard to see(full sun) but if you zoom in a bit my cars at the top.

 

[gregrarnold]

So the Whipple tune cut it off at that rpm?

To be clear the Whipple tune still revs out 7,400-ish rpm if I remember correctly, don’t think any different than stock. It was the wheel speed in 5th gear that cut the party short but I wasn’t looking at speedo when on the dyno. Never crossed my mind, after 3 pulls I gave up. The tech running dyno was convinced I was chicken footing it but had pedal planted firmly on floor even after it limited out. It wasn’t until I had car back off the dyno and was looking at leaderboard that had the wheel speed data what had actually happened. Figure I got robbed of a few HP on paper anyways.

 

[Billycar11]

So the Whipple tune cut it off at that rpm?

Whipple stage one on a auto car stops at 140

 

[Junkyard Dog]

Whipple stage one on a auto car stops at 140

WHY?

 

[Junkyard Dog]

Figure I got robbed of a few HP on paper anyways.

You can clearly see on the graph the horsepower is still climbing sharply and has a ways to go.

 

[smurfslayer]

Ford is responsible for the speed limiter. F/P and Whipple stage 1 do not _remove_ the speed limiter. Whipple stage 2 does remove the speed limiter - or push it to beyond the max possible speed the car could reach, they weren’t specific on that point.

 

[Junkyard Dog]

Stage 2 has to be north of 200 mph.

 

[gregrarnold]

Ford is responsible for the speed limiter. F/P and Whipple stage 1 do not _remove_ the speed limiter. Whipple stage 2 does remove the speed limiter - or push it to beyond the max possible speed the car could reach, they weren’t specific on that point.

Looks like Stage 2 is in my near future! I don’t need to go that fast in real life, but nice knowing I could……..

 

[Billycar11]

Ford is responsible for the speed limiter. F/P and Whipple stage 1 do not _remove_ the speed limiter. Whipple stage 2 does remove the speed limiter - or push it to beyond the max possible speed the car could reach, they weren’t specific on that point.

i can tell you the whipple tune lowers the speed limit on my darkhorse its now 140 was 160+ before

 

[smurfslayer]

i can tell you the whipple tune lowers the speed limit on my darkhorse its now 140 was 160+ before

ok, but that is not what their purchase disclaimer says and also not what they told me when I asked. Not saying you’re incorrect, just that it’s different from what they fessed up to.

 

[Billycar11]

ok, but that is not what their purchase disclaimer says and also not what they told me when I asked. Not saying you’re incorrect, just that it’s different from what they fessed up to.

yeah the phone/email reps usually dont know what they are talking about saddly.

but yeah real world experience here whipple stage 1 lowers DH top speed to 140

if you send over that email to me thats says that i will try to get them to unlock my speed lol
but i have low hopes of that.
i hp tuners any way just a waiting game till they find all of the limiters.

 

[smurfslayer]

yeah the phone/email reps usually dont know what they are talking about saddly.

but yeah real world experience here whipple stage 1 lowers DH top speed to 140

if you send over that email to me thats says that i will try to get them to unlock my speed lol
but i have low hopes of that.
i hp tuners any way just a waiting game till they find all of the limiters.

can’t you just upgrade to stage 2? it shouldn’t be that expensive. T/B and the tuner programming, right?

 

[Billycar11]

can’t you just upgrade to stage 2? it shouldn’t be that expensive. T/B and the tuner programming, right?

they charge $1000+
https://www.lethalperformance.com/2...6e08cd7450cbbdddc64c6cf2e8891f6d48747c6d56d2c
got it to keep the warranty

really does not make scene to upgrade value wise as from the start stage 1 with warranty vs stage 2 are the same price
without the warranty its $500 cheaper

once hp tuners finds all the limiters i will be removing them that will only cost me $200 in credits plus i will make all the modes i use shift like drag mode

 

[smurfslayer]

Wow. I did not realize the stage 1-2 upgrade was that much coin.

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