any harm done to Ranger?

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Originally Posted By: itguy08
People around here tend to worry way too much.


Understatement of the year, LOL!
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That truck is electronically limited to around 6250 RPM, and even that won't come close to hurting it.

The 3.0L doesn't make peak HP until 5000 RPM. Peak torque is around 3000 RPM. Between 3-5K is where that engine is happiest.
 
The 3.0 Duratec in our 2006 Ford Five Hundred car WOT shift point is 6200 as well. Many told me it was underpowered engine but it will run like a haint is I get give it a lot of pedal. I do some WOT take offs and when passing on some two lane roads. If I want to get moving I let it shift in the 5000-5500 range. We bought it 5 months ago showing 110K with a history for 5K OCI at a Ford dealership and internally the engine is cleaner than any used care ever. I love our car engine, transmission and especially the Volvo S80 chassis (1998-2006 version) that Ford reskinned.
 
over rev would be as in suddenly dropping from 5th to 2nd gear and the rpms shoot up? I dont know if he hit redline, as its not marked on my rpm gauge, but as stated he hit 4-4.5k rpm in 1st gear and 5-5.5k rpm in the other gears.
 
Originally Posted By: mobilaltima
over rev would be as in suddenly dropping from 5th to 2nd gear and the rpms shoot up? I dont know if he hit redline, as its not marked on my rpm gauge, but as stated he hit 4-4.5k rpm in 1st gear and 5-5.5k rpm in the other gears.


Your tach doesn't have a red line because it's not needed for the displayed values (up to 6K). Some Rangers do use a visual red line on the tach, such as my 1994 4.0L at around 5K RPM, but most don't. My 2002 3.0 doesn't. 5500 RPM is about as far as the auto trans will let it go though. My manual 2.5L Ranger with no tach red line definitely went over 6K RPM a few times...empty ice covered parking lots when I was in high school and such.

A shift to a low gear at high speed would be about the only way to over rev the engine with a stock computer. It's not going to let you do it with just the gas pedal.
 
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Originally Posted By: bbhero
WOT with which one of your stable Brybo86??
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The 95 LS400, surprisingly good pull for a highway cruiser

Edit after reading I'm guessing you were joking about the 50cc scooters....
Yes those are driven at wot all the time... either idling or wot
 
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Once I had an engulfed valve (shoved up to the seats) in a ford cht engine 1.6L pushrod that I revved past 6k rpms a few times, that's a 5.5k redline. Was a 1985 Scalla ethanol feed engine.
 
No.

You literally cannot damage this truck's engine simply by using the gas pedal. Won't happen, at least with stock tuning.

It would have to be a badly missed shift to pull that off.
 
Originally Posted By: mobilaltima
so hitting redline in every gear( 5 speed) wouldnt hurt it either?




Relax...as long as that engine had enough oil and it was warm like was stated many time you have nothing to worry about
 
Originally Posted By: mobilaltima
so hitting redline in every gear( 5 speed) wouldnt hurt it either?


Nope. My first car was a 1986 Mustang LX with the 2.3L OHV engine with a whopping 88HP and a 4 speed stick. It had 2 throttle positions- idle and WOT. Hot or cold Redline quite a lot and going up a hill was foot to the floor in 2nd and maybe you would hold 35 MPH.

Bought it with 58k on it and it had the original engine and trans at 176k when it went to the junk yard. No engine issues- body and emissions sent it there. No doubt it would have made 200-250k easily.

Don't overthink it.
 
Originally Posted By: mobilaltima
so hitting redline in every gear( 5 speed) wouldnt hurt it either?


Just don't make a habit of doing it to a cold engine. An engine with oil at operating temps, no problem. That can take up to 30 minutes depending on ambient temps and the cooling system.
 
Originally Posted By: exranger06
The redline is the maximum safe RPM the engine can spin. Anything below that is, well, safe.


and typically well below what most are capable of, generally quite conservative due to production variances and warranty concerns...
 
Originally Posted By: mobilaltima
over rev would be as in suddenly dropping from 5th to 2nd gear and the rpms shoot up? I dont know if he hit redline, as its not marked on my rpm gauge, but as stated he hit 4-4.5k rpm in 1st gear and 5-5.5k rpm in the other gears.


When I think over-rev, I think money-shift. A moneyshift generally happens from poor shifter technique and going 1-->2-->3-->2 (meant to go into 4th) while pushing hard. The money-shift is that the engine is going to cost a ton to fix.

Dropping from 5th to 2nd and going up to 5k RPM is not an issue.

My car has an oil temp gauge, I drive like an old lady until my oil is over 200F.
 
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