Red-Lining - Mustang Evolution

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Old 06-19-2012, 09:38 PM   #1
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Red-Lining

How bad is red-lining just a little bit? How much does it take to do damage? And how many times? How about accidentally doing it, not actually pushing it. What should I look for if there is damage? Please give me details.
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Old 06-19-2012, 09:50 PM   #2
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Just try not to bounce it off the rev limiter but if you pull up to it once and a while you won't blow up just be carefully and don't go dumping the clutch at redline and pull gears way too late all the time
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Old 06-19-2012, 09:52 PM   #3
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I really dont mo a lot about the damges caused by red linning although i personally dont feel comfortable taking it past 6500 to 6700rpm. I dont no many guys on the forum tho are taking there coyotes past 7 grand and i dont think there having any problems
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Old 06-19-2012, 10:08 PM   #4
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I hit 7,800 rpm everyday and have had no problems thus far knock on wood
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Old 06-19-2012, 10:36 PM   #5
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Well if your coyote is stock, I'd say that there's no point in rev past 6500 rpm. Horse power and torque start to fall off. The stock intake manifold and cams don't flow well enough to keep the power up above 6500 rpm. The boss intake helps improve that problem. As for how high you can rev your coyote, I would recommend any past 7500 rpm. The valves will start to float and u may cause major engine damage. Also not good to rev it that high with no load on the engine. Revving that high in neutral is really bad. It's a good way to burn up the rings and bearings.
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Old 06-19-2012, 10:38 PM   #6
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If you you drive around redlining all the time you are causing excessive wear and tear on you drive train, motor and pretty much any moving part. The end result would be a catastrophic failure putting you and your car on the side of the road or worse. It's called a redline for a reason, bad things will happen. Sorry if I came across as harsh I'm not meaning to. It's just how I explain stuff.
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Old 06-19-2012, 10:57 PM   #7
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What happens if I did this on an automatic transmission with select shift? I have accidentally redlined like 4 times and I get worried. Any encouragment or hope? Or slaps on the hand?
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Old 06-19-2012, 11:04 PM   #8
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I recommend working on spending some time getting your shifts don't watch your tach listen your engine and shift early till you get comfortable with the shifts. Better to shift early than always shift late.

---------- Post added at 09:04 PM ---------- Previous post was at 09:03 PM ----------

Also I hope your not street racing.
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Old 06-20-2012, 02:29 AM   #9
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Quote:
Originally Posted by Struego
Well if your coyote is stock, I'd say that there's no point in rev past 6500 rpm. Horse power and torque start to fall off. The stock intake manifold and cams don't flow well enough to keep the power up above 6500 rpm. The boss intake helps improve that problem. As for how high you can rev your coyote, I would recommend any past 7500 rpm. The valves will start to float and u may cause major engine damage. Also not good to rev it that high with no load on the engine. Revving that high in neutral is really bad. It's a good way to burn up the rings and bearings.
Oh really cause mine pulls just as hard at 7000rpm as it does at 4000rpm and im stock besides a catback.
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Old 06-20-2012, 06:09 AM   #10
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Quote:
Originally Posted by Struego
Well if your coyote is stock, I'd say that there's no point in rev past 6500 rpm. Horse power and torque start to fall off. The stock intake manifold and cams don't flow well enough to keep the power up above 6500 rpm. The boss intake helps improve that problem. As for how high you can rev your coyote, I would recommend any past 7500 rpm. The valves will start to float and u may cause major engine damage. Also not good to rev it that high with no load on the engine. Revving that high in neutral is really bad. It's a good way to burn up the rings and bearings.
I've talked to various tuners including bama and they have all told me revving to 7,800rpm on the coyote is safe. As a matter of fact both tuners told me you can rev even higher. No doubt revving that high on a daily basis wears out the engine faster. Engines are all just moving parts, they all wear out over time just depends on how well you take care of them.
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Old 06-20-2012, 07:00 AM   #11
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Quote:
Originally Posted by 2011gt85

Oh really cause mine pulls just as hard at 7000rpm as it does at 4000rpm and im stock besides a catback.
Really! Show me a dyno graph.

---------- Post added at 06:00 AM ---------- Previous post was at 05:56 AM ----------

Quote:
Originally Posted by tgmeyer
What happens if I did this on an automatic transmission with select shift? I have accidentally redlined like 4 times and I get worried. Any encouragment or hope? Or slaps on the hand?
Same deal with automatic. Auto or stick has no difference on red lining. The thing to do is some math. Find out what rpm u need to shift at so that next gear will start in your peak rpm. On most cars that means shifting couple hundred rpm before redline, unless it's a Honda.
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Old 06-20-2012, 09:10 AM   #12
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Re: Red-Lining

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Originally Posted by tgmeyer View Post
What happens if I did this on an automatic transmission with select shift? I have accidentally redlined like 4 times and I get worried. Any encouragment or hope? Or slaps on the hand?
Once upon a time, in a garage far, far away, cars had these things called "red lines" that indicated the maximum RPM before engine damage could occur. If you increased the RPMs past this line you were putting your engine in jeopardy.

Modern cars have safety systems (rev limiters) build in that will prevent you from exceeding this limit and damaging your engine. It's not a good idea to be hitting/bouncing off it all the time, and I can tell you that after about 6500RPM you're losing power on a stock intake anyways. If you've hit the limiter at 7000 four times, you have nothing to worry about. Many of us have our limiters set at 7600 or 7800 RPM and have no problems.
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Old 06-20-2012, 10:48 AM   #13
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You don't want to be bouncing off the limiter. It can blow the engine. Cause plugs to go bad.

Taking stock engine to 6800 where redline is just fine. As above though don't bounce off limiter. You always want to go a past peak power when shifting. This keeps you in your highest powerband. Even if stock.

With boss intake and other mods you want to really Rev it to take advantage of the boss intake. 7800 is fine. Many have been doing this with no issues.
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Old 06-20-2012, 11:07 AM   #14
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Re: Red-Lining

you have to really be wanting to redline a car unless you are racing and miss a shift. Otherwise I dont see how you could ever accidentally do it~

peak power is NOT at redline, redline is simply the limit the engine needs to go to before damage can happy. Even at redline it can happen, especially if the motor is cold etc.

Dont do it, no reason to
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Old 06-21-2012, 06:44 PM   #15
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Quote:
Originally Posted by Yellow50
I hit 7,800 rpm everyday and have had no problems thus far knock on wood
Dam! The max I've gone is 5k! Lol then again I only have 1500 miles. How long do I wait before I push to 6k?
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Old 06-21-2012, 06:58 PM   #16
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Quote:
Originally Posted by Ken Cheema

Dam! The max I've gone is 5k! Lol then again I only have 1500 miles. How long do I wait before I push to 6k?
I would wait at least till you change the oil. 3k miles, then you should be good. How many miles are u driving daily?
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Old 06-21-2012, 09:29 PM   #17
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I made my first quarter mile pass with 81 miles on the car lol
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Old 06-21-2012, 10:29 PM   #18
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Re: Red-Lining

Raced a 96 Mustang yesterday and Reved my engine on 2 and 3 to 6800 rpm. Thing is I'm new to stick so only problem was I can smell my clutch(smells like Urine). Idk I just don't know how to release the clutch on time. Besides that don't feel Nothing wrong.
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Old 06-21-2012, 10:34 PM   #19
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Quote:
Originally Posted by Ken Cheema

Dam! The max I've gone is 5k! Lol then again I only have 1500 miles. How long do I wait before I push to 6k?
I took mine to 7500 with 630whp since I bought it. Bought with 65 miles on it cause they got it from an hour away.
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Old 06-21-2012, 11:21 PM   #20
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Originally Posted by Merben50
Raced a 96 Mustang yesterday and Reved my engine on 2 and 3 to 6800 rpm. Thing is I'm new to stick so only problem was I can smell my clutch(smells like Urine). Idk I just don't know how to release the clutch on time. Besides that don't feel Nothing wrong.
Probably not the clutch....when you go wot the cats stink.
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Old 06-22-2012, 12:43 AM   #21
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Re: Red-Lining

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Originally Posted by 2011gt85 View Post
Probably not the clutch....when you go wot the cats stink.
Oh is that a bad problem when the cats stink or is that normal? I've been freaking out about the clutch ever since I got the car since I just started driving Manual.
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Old 06-22-2012, 08:45 AM   #22
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Quote:
Originally Posted by Struego

I would wait at least till you change the oil. 3k miles, then you should be good. How many miles are u driving daily?
Like 50-100
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Old 06-22-2012, 10:50 AM   #23
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Re: Red-Lining

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I hit 7,800 rpm everyday and have had no problems thus far knock on wood
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Old 06-23-2012, 09:17 AM   #24
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With my stock intake I pull to 7100 then shift, that's proven to be a .2 difference at the track for me.
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Old 06-23-2012, 10:47 AM   #25
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Quote:
Originally Posted by Mweigt07
With my stock intake I pull to 7100 then shift, that's proven to be a .2 difference at the track for me.
This^
Best pass I've made on the track was with stock intake revving to 7600. Made a difference of .2-.3
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Old 06-23-2012, 11:33 AM   #26
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I hadn't had a chance yet to change the rev limit higher than 7200 but I will try a lil higher next week that way I can try to stay in second in the 1/8
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Old 06-23-2012, 12:00 PM   #27
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Re: Red-Lining

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I hadn't had a chance yet to change the rev limit higher than 7200 but I will try a lil higher next week that way I can try to stay in second in the 1/8
2nd?!?!?! what's your rear gear? Mine is 3.73 and It'll only take me to, at very best, 70mph. I always trap in 3rd
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Old 06-23-2012, 03:00 PM   #28
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Quote:
Originally Posted by Ken Cheema

Dam! The max I've gone is 5k! Lol then again I only have 1500 miles. How long do I wait before I push to 6k?
You don't wait at all, you should be going through the rpms under a full load at least every time you drive it. That's how you break it in the right way, just going up and down through the rpms. That's how I did it and I'm running stronger than most 5.0s I encounter
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Old 06-23-2012, 04:19 PM   #29
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Originally Posted by coyote414

You don't wait at all, you should be going through the rpms under a full load at least every time you drive it. That's how you break it in the right way, just going up and down through the rpms. That's how I did it and I'm running stronger than most 5.0s I encounter
Thanks, I'll stop babying it
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Old 06-23-2012, 04:27 PM   #30
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Thanks, I'll stop babying it
Find a happy medium, don't baby it or keep it at a steady rpm for too long, avoid cruise control etc. just up and down through the rpms a few times every trip you take, you don't have to mash the throttle or power shift, but a healthy acceleration is good for break ins.
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Old 06-23-2012, 07:18 PM   #31
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2nd?!?!?! what's your rear gear? Mine is 3.73 and It'll only take me to, at very best, 70mph. I always trap in 3rd
Lol 3.31 with a 26 inch tire, right now I'm shifting right before I cross the line
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Old 06-23-2012, 08:08 PM   #32
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O, yea a much diff setup than mine
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