Raising the rev limiter with a tune - Mustang Evolution

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Old 03-17-2011, 06:12 PM   #1
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Raising the rev limiter with a tune

What is raising the rev limiter on a tuner and is this safe for the car?
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Old 03-17-2011, 06:24 PM   #2
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Originally Posted by Blackedout
What is raising the rev limiter on a tuner and is this safe for the car?
Why would you want to?
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Old 03-17-2011, 06:25 PM   #3
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I don't know I'm really not saying I want it I jus wanna know what it is...
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Old 03-17-2011, 06:38 PM   #4
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Originally Posted by Blackedout
I don't know I'm really not saying I want it I jus wanna know what it is...
Raising your limiter would hurt your engine, but I think you might be talking about your top speed governor.
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Old 03-17-2011, 06:40 PM   #5
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Originally Posted by 11SHELBYGT500

Raising your limiter would hurt your engine, but I think you might be talking about your top speed governor.
Depends on how much you raise it...a couple hundred rpm isn't too bad,1000 will cause valve float and possible failure

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Old 03-17-2011, 06:43 PM   #6
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Top speed governor
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Old 03-17-2011, 06:44 PM   #7
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Originally Posted by Everett

Depends on how much you raise it...a couple hundred rpm isn't too bad,1000 will cause valve float and possible failure

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Agreed ^^^ but I don't see a benefit from raising your limiter 300 over your redline.
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Old 03-17-2011, 06:46 PM   #8
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Originally Posted by 11SHELBYGT500

Agreed ^^^ but I don't see a benefit from raising your limiter 300 over your redline.
I don't see any benefit at all...torque and hp peak are well below the rev limit...ford got this one right on. Unless you have improved valvetrain there really isn't any point or use

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Old 03-17-2011, 06:47 PM   #9
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I don't see any benefit at all...torque and hp peak are well below the rev limit...ford got this one right on. Unless you have improved valvetrain there really isn't any point or use

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Agreed^^^
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Old 03-18-2011, 09:33 AM   #10
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Re: Raising the rev limiter with a tune

There is absolutely no need to raise the rev limiter on your car, it will not benefit you in any way! hp/torque numbers hit the highest peak before red line. Your car has a factory set top speed based on your stock tire speed rating, the tuner will allow you to raise the speed limiter to levels you will never see. that said I recommend if you raise the limit to get higher speed rated tires(performance tires) or take the risk of catastrophic tire failure and at those speeds possible death
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Old 03-18-2011, 09:43 AM   #11
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Wow...catastrophic eh

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Old 03-18-2011, 09:44 AM   #12
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Re: Raising the rev limiter with a tune

the reason you should really be careful is the car makes its peak power at X rpm, no need to go much if any above that ever, your just losing power. The next thing is the motor will only be able to take X rpm before major issues take place, you want to stay away from that, Thats why the rev limiter is there to begin with.
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Old 03-18-2011, 12:09 PM   #13
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Re: Raising the rev limiter with a tune

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the reason you should really be careful is the car makes its peak power at X rpm, no need to go much if any above that ever, your just losing power. The next thing is the motor will only be able to take X rpm before major issues take place, you want to stay away from that, Thats why the rev limiter is there to begin with.
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Old 03-18-2011, 12:13 PM   #14
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Re: Raising the rev limiter with a tune

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Originally Posted by Lone Star View Post
There is absolutely no need to raise the rev limiter on your car, it will not benefit you in any way! hp/torque numbers hit the highest peak before red line. Your car has a factory set top speed based on your stock tire speed rating, the tuner will allow you to raise the speed limiter to levels you will never see. that said I recommend if you raise the limit to get higher speed rated tires(performance tires) or take the risk of catastrophic tire failure and at those speeds possible death
NICE ......... Speed rating is sustained speed ,if you go 150 on a set of 120 rated tires it's not really going to be that bad , unless your doing 150 for a long period of time ,that will cause the tires to heat up ,blah blah ,blah
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Old 03-18-2011, 12:27 PM   #15
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Re: Raising the rev limiter with a tune

speed limiter is not always the same as rev limiter
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Old 03-18-2011, 12:40 PM   #16
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My buddy's rice limiter is broken in his Kia

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Old 03-18-2011, 12:44 PM   #17
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My buddy's rice limiter is broken in his Kia

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Old 03-18-2011, 12:46 PM   #18
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Your a life saver,I got to let him know before his motor goes kung pow!

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Old 03-18-2011, 03:58 PM   #19
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Old 03-18-2011, 09:17 PM   #20
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Re: Raising the rev limiter with a tune

As said, the rev limiter is different from the speed limiter.

The rev limiter should just stay on...the peak power is well before redline and there's really no point in removing it, unless you wanted to see how many times you could rev your car consecutively before hearing "cool" (not) noises.

The speed limiter is set at 115 for 99-04 v6's. The reason being limited at that speed is due to the OEM tires on the cars. The 225/55/16 Goodyear Eagles and smaller 15" tires on 99/00 v6's were 115 mph tires.

You could remove the speed limiter if you wanted to go faster than 115, but I personally think there would rarely be a time when you need to go any faster, and let's be honest, the v6 isn't necessarily built for top end...you'll most likely run out of good road before getting there, lol.

Now if you happened to own a 99-00 GT with the base 16" wheels and you're limited to 115, you might want to remove that limiter to reach that higher speed/
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