REV Limit?

[BC]

I had a 2006 Mustang GT with Automatic Trans. And of course I floored it may times from a dead stop but I never held it in first gear or anything so I never experienced rev limit kick in.

So now I have a 2015 GT with Manual trans. Tonight was the first time I had a chance on a lonely road (with no cops around) to floor it from dead stop.

It surprised me how fast it hit redline in first and second. Furthermore I felt a power drop and when I looked down at the tach I was in the neighborhood of 7000+ rpm.

So not being used to this (in a manual that is, and how quickly it can reach redline) I realized I will need to pay attention to the tach and shift much faster from first to second and second to third. (duhhh....I guess!)

Which brings me to my real question...the loss of power I felt starting around 7000 rpm...that was rev limit kicking in... right?
I hope so...and assume that setting is a good thing ...to protect the engine.

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[fionic]

yes.

just shift by ear.

 

[Todd15Fastback]

Yes, it was the rev limiter kicking in.

 

[Rob00GT]

It was the REV limiter saving you from hand-grenading your engine. Take it easy until you get used to shifting before the limit.

 

[B-52 Jetman]

The 5.0 makes its peak HP @ 6500 RPM, the optimal shift point would be 6800-7000 RPM.

 

[Sterling Archer]

The performance pack gearing is really short, first gear is borderline useless because of how fast the engine revs. In general the standard coyote falls off at the top end, but if you get the new cobra jet intake, you'll pull hard even at 7k+ rpm (with a tad dropoff of low end torque). And I agree with others, learn to shift by ear - but to get started, do watch the tach to learn what sounds occur at which rpm.

If you really want to have some fun with the car, do your pulls in third gear. That'll give you enough headroom under the speed limit while still revving quickly.

 

[DiEzel]

The performance pack gearing is really short, first gear is borderline useless because of how fast the engine revs.

I feel like first is just for making noise/burnouts w/ this 3.73.. Reminds me of driving my old cummins w/ granny gear, Hahaha.

 

[BC]

Thanks for the comments and tips. Yes first gear redlines almost instantaneous it seems, so I know I have to be careful. It did scare me when I felt power drop off...glad I didn't hurt the engine.
I will watch the tach, listen to the engine and shift much faster from 1st to 2nd till I get a feel for it.
Thanks!
BC

 

[Sterling Archer]

Keep in mind you have peak torque around 4400 rpm, so shifting around 4-5k in first is probably a good bet for general spirited driving. Just because the engine can go redline doesn't mean it's smart to live above 7k perminently.

 

[BC]

Keep in mind you have peak torque around 4400 rpm, so shifting around 4-5k in first is probably a good bet for general spirited driving. Just because the engine can go redline doesn't mean it's smart to live above 7k perminently.

Another good tip...thanks! And yes I definitely want to avoid 7000+.
BC

 

[cush]

I had a 2006 Mustang GT with Automatic Trans. And of course I floored it may times from a dead stop but I never held it in first gear or anything so I never experienced rev limit kick in.

So now I have a 2015 GT with Manual trans. Tonight was the first time I had a chance on a lonely road (with no cops around) to floor it from dead stop.

It surprised me how fast it hit redline in first and second. Furthermore I felt a power drop and when I looked down at the tach I was in the neighborhood of 7000+ rpm.

So not being used to this (in a manual that is, and how quickly it can reach redline) I realized I will need to pay attention to the tach and shift much faster from first to second and second to third. (duhhh....I guess!)

Which brings me to my real question...the loss of power I felt starting around 7000 rpm...that was rev limit kicking in... right?
I hope so...and assume that setting is a good thing ...to protect the engine.

Sure you can look at the tach more closely (I only do it when I have the stereo cranked) but driving a manual is more of a hearing and feel thing! If it sound like it's screaming (for help) it's time to upshift! :cheers:

 

[Jon B.]

I don't watch my tach since it lights up bright red when I need to shift. It's an excellent shift light.

 

[S550_Magnetic]

I had a 2006 Mustang GT with Automatic Trans. And of course I floored it may times from a dead stop but I never held it in first gear or anything so I never experienced rev limit kick in.

So now I have a 2015 GT with Manual trans. Tonight was the first time I had a chance on a lonely road (with no cops around) to floor it from dead stop.

It surprised me how fast it hit redline in first and second. Furthermore I felt a power drop and when I looked down at the tach I was in the neighborhood of 7000+ rpm.

So not being used to this (in a manual that is, and how quickly it can reach redline) I realized I will need to pay attention to the tach and shift much faster from first to second and second to third. (duhhh....I guess!)

Which brings me to my real question...the loss of power I felt starting around 7000 rpm...that was rev limit kicking in... right?
I hope so...and assume that setting is a good thing ...to protect the engine.

The entire gauge cluster flashes red when you need to shift... Just look for the blaring red lights.

 

[BC]

The entire gauge cluster flashes red when you need to shift... Just look for the blaring red lights.

Don't see how I missed that...I Have not seen that yet...but the other night was first time from dead stop after break in. I'll look for it next time. Thanks.
BC

 

[Boogeyman]

Don't see how I missed that...I Have not seen that yet...but the other night was first time from dead stop after break in. I'll look for it next time. Thanks.
BC

It doesn't have that feature in the base trim, only the premium, so if your have a base car that woukd explain it. If you have a premium it a cool feature and it pretty obvious when it happens.

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