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Old 07-21-2013, 08:45 PM   #1
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Safe rpm acceleration?

Hey new member here and new car buyer. I couldn't find myself in anything other than a mustang and was wondering from a complete stop is 3500 rpm safe to accelerate at? And on the highway would 5000 rpm be safe? I do understand that the more rpm will use more gas and require more frequent oil changes, but I am fine with that. I just want to know if that will kill my engine?
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Old 07-21-2013, 08:50 PM   #2
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5000 rpm in an 05-10 v6 would be extremely dangerous. That's right there next to the redline. 3000 in the city is ridiculous because I have 373 in mine and it doesn't run 3000 rpm on the highway
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Old 07-21-2013, 09:09 PM   #3
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Well usually from a stop I'll get to 2500 then the Rev limiter shifts down to 1500, and for highway if I took it up to 4500 it'd shift down of course to about 2500. So 4500 is dangerous if for example I'm revving to exit onto the highway?
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Old 07-21-2013, 09:32 PM   #4
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No. Usually for everyday driving keep it in the high 2000 range and getting on the freeway around mid 3000. But once you get used to the car you'll be able to judge better where you should shift. And 5000 is not dangerous it's just hard on the engine
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Old 07-23-2013, 07:17 PM   #5
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5K rpm constant on the hwy is a bad idea. I cruise at 70 in 5th gear at around 2K, maybe a little more. City driving is around the same rpm. I have a 3.31 gear so my rpm's will be lower than 3.73 at the same speed.
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Old 07-24-2013, 02:17 PM   #6
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I don't plan on driving that way all the time, just sometimes to have a little fun.
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Old 07-25-2013, 09:13 PM   #7
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Quote:
Originally Posted by Thatdude156 View Post
I don't plan on driving that way all the time, just sometimes to have a little fun.
Nothing wrong with having some fun!
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Old 09-26-2013, 09:51 AM   #8
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all of the 05-10 v6 mustangs have a rev limiter, you can only get up to 115 mph and 3500rpms in 5th gear. unless you get a tune thats as fast as you can go.
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Old 09-27-2013, 12:13 AM   #9
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If all you are doing is cruising around then keep it around 2k rpm, if you are getting on it go ahead and bring it up to the redline, just don't keep it up there all the time.
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