2018 Mustang GT Redline - 7400 or 7500?

[Dusten]

Just for fun.

Drag mode. These shifts are 3-4 and 4-5 both about 7200-7300
Not sure if it'll shift higher in a lower gear.

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[ihc95]

One of the Mustang lead engineers says 7500 RPM (@15:55)




/close thread

 

[Jimmy G]

One of the Mustang lead engineers says 7500 RPM....

I welcome you to 1985 as well. One of the reasons I started the thread.

As we’ve shown here, he’s dead wrong. Redline is 7400rpm.

 

[Brent Davis]

Although it’s a Whipple ‘18 and PBD custom tune, mine pulled all the way up to 8000 on a few other pulls. He actually was lifting a bit on these two pulls just shy of 8K.

 

[Dusten]

I welcome you to 1985 as well. One of the reasons I started the thread.

As we’ve shown here, he’s dead wrong. Redline is 7400rpm.

Has anyone shown hard proof? A datalog of fuel cut?

For those with an A10. Put your gearbox in S, use the flappy paddles and then stop the car with the engine still running and the gearbox still in flappy mode. Then put you foot down. The gearbox stays in 1st and you will get to 8,000 revs before the car has a chance to limit your idiocy.

So you're saying fords hard limiter is 8k?

 

[Dusten]

Not really, it's so quick inertia seemed to take over. The digi dash goes very red.
Try it.

I did. Rpms never exceeded 7500...

Heres a quick log to show 7422

 

[Silver Bullitt]

Maybe our gauges aren't accurate, but I've seen 7700 before with no cut (stock tune). I need to get my X4 unmarried from my F150 and log it.

 

[ihc95]

I welcome you to 1985 as well. One of the reasons I started the thread.

As we’ve shown here, he’s dead wrong. Redline is 7400rpm.

LOL yeah an engineer who actually developed the car is dead wrong

Personally I've seen my car shift at ~7600 at times unless the tach is wrong (which it most likely isn't)

 

[Dusten]

Maybe our gauges aren't accurate, but I've seen 7700 before with no cut (stock tune). I need to get my X4 unmarried from my F150 and log it.

I'll try a lot with forscan later to see if its more accurate

 

[Jimmy G]

LOL yeah an engineer who actually developed the car is dead wrong ....

Use your eyes.

The red line on your tach is at 7400 rpm.

 

[Dusten]

Use your eyes.

The red line on your tach is at 7400 rpm.

Forscan lists it as 6500 or 7400 on the tach. That doesn't mean the hard limiter is 7400.

 

[Jimmy G]

Forscan lists it as 6500 or 7400 on the tach. That doesn't mean the hard limiter is 7400.

Let me clarify.

The "redline" is the rpm point on the tach that the manufacturer recommends owners don't exceed as engine damage can occur past that point. In the 2018/2019 Mustang GT, Ford has drawn that line at 7400rpm. In the lead up to the 2018 Mustang GT's release, Ford said many times (incl in the video in post #48) that they had increased the redline by 500rpm to 7500rpm. Except they didn't. That claim was a marketing lie. They increased it 400rpm, to 7400rpm. Maybe they just like round numbers.....I just think it's stupid to say you've gone to 7500 when you've drawn the red line at 7400.

"Hard limiter" or "fuel cut" or "ignition cut" is a separate thing. In the good old carby days you had to rely on the tach redline to determine when to back off. Now you have software that limits your rpm. Sometimes that software limit is coincident with the redline, sometimes it isn't. On this forum Hivel found a transmission software limit at 7400rpm, same as the redline limit. Nuked found the engine software limit is 7350rpm.

Seems clear to me that Ford have limited the engine speed to 7350-7400, but for marketing purposes they claim they have raised it by 500rpm to 7500.

 

[Dusten]

Let me clarify.

The "redline" is the rpm point on the tach that the manufacturer recommends owners don't exceed as engine damage can occur past that point. In the 2018/2019 Mustang GT, Ford has drawn that line at 7400rpm. In the lead up to the 2018 Mustang GT's release, Ford said many times (incl in the video in post #48) that they had increased the redline by 500rpm to 7500rpm. Except they didn't. That claim was a marketing lie. They increased it 400rpm, to 7400rpm. Maybe they just like round numbers.....I just think it's stupid to say you've gone to 7500 when you've drawn the red line at 7400.

"Hard limiter" or "fuel cut" or "ignition cut" is a separate thing. In the good old carby days you had to rely on the tach redline to determine when to back off. Now you have software that limits your rpm. Sometimes that software limit is coincident with the redline, sometimes it isn't. On this forum Hivel found a transmission software limit at 7400rpm, same as the redline limit. Nuked found the engine software limit is 7350rpm.

Seems clear to me that Ford have limited the engine speed to 7350-7400, but for marketing purposes they claim they have raised it by 500rpm to 7500.

Redline on the tach could be at 2200, that is completely meaningless. the redline on the tach on my lightning is 5200.... guess what, my motor will spin 7k all day.

And in the carb days, electronic limiters existed. I've already proven it. A drawn on the tach redline is a pretty weird fucking hill for you to die on.

 

[Jimmy G]

Redline on the tach could be at 2200, that is completely meaningless. the redline on the tach on my lightning is 5200.... guess what, my motor will spin 7k all day.

And in the carb days, electronic limiters existed. I've already proven it. A drawn on the tach redline is a pretty weird fucking hill for you to die on.

The redline on the tach isn't meaningless, it's there as an alert that speeds over that point could damage the engine. Your Lightning motor wouldn't spin at 7K all day, of that I'm 100% certain.

Yes, in the carb days the odd limiter existed, I'm well aware.

The only people who seem willing to die on the hill of a 7500rpm redline work at Ford.....they're the ones that carpeted the internet with the bogus claim.

 

[Jimmy G]

This pdf supplied to dealers to educate them on the new 2018 Mustang's features.

See page 7:

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