i think my RPMs or too high - Ranger-Forums - The Ultimate Ford Ranger Resource


2.9L & 3.0L V6 Tech General discussion of 2.9L and 3.0L V6 Ford Ranger engines.

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  #1  
Old 09-27-2007
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i think my RPMs or too high

when im goin do the highway doin about 70-75 my RPM is run at 3k that seems kinda high cause my girlfriends 1500 at 80mph is at 2k so i was wondering if 3k is normal thanks guys
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Old 09-27-2007
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I see you have 32's on your truck, did you re-gear, if not, what gear do you have? I run 2500 rpms at 80, but I have 30" tires with a 3.42 gear ratio. In any event, it doesn't seem high to me...
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Old 09-27-2007
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i ran about 3500RPM at 70-75mph, with stock 4.10's and 35in tires.. but that was with the O/D OFF
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Old 09-27-2007
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it all has to do with what gear is in your, mine has the 4.10 rear end and at 70 im doin 2500..which to me is hummin pretty good..but like my dads F150 has the 3.55 rear end that thing is like 1800 at 70 so it all has to do with your rear end.
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Old 09-27-2007
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I've got 4.10's, 5 speed manual, 3.0L, 31's. I turn 3,000 - 3,200 at around 90.
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  #6  
Old 09-27-2007
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Quote:
Originally Posted by DaGGer
I've got 4.10's, 5 speed manual, 3.0L, 31's. I turn 3,000 - 3,200 at around 90.
I don't see how thats possible when I have tires that are less than 1" smaller than you with a 3.42 gear ratio running 2500rpm at 80. I don't see any way you could be going 10 mph faster with that much more gear and only 5-700 rpms higher. (I have a manual as well)
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Old 09-27-2007
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Quote:
Originally Posted by greygooseranger
I don't see how thats possible when I have tires that are less than 1" smaller than you with a 3.42 gear ratio running 2500rpm at 80. I don't see any way you could be going 10 mph faster with that much more gear and only 5-700 rpms higher. (I have a manual as well)
I have 4.10's and an automatic and my speedo tops out at 93 which is 3200 RPM.
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  #8  
Old 09-27-2007
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Really? Wow, that just seems off to me, but eh, what do I know....lol.
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  #9  
Old 09-27-2007
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i have 4.10's but it kinda feels like im in third gear and it want to go into 4th but just woulnt
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Old 09-27-2007
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im at about 2600 at 70 with my 3.73's
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  #11  
Old 09-27-2007
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Quote:
Originally Posted by greygooseranger
I see you have 32's on your truck, did you re-gear, if not, what gear do you have? I run 2500 rpms at 80, but I have 30" tires with a 3.42 gear ratio. In any event, it doesn't seem high to me...

3.42?? you mean 3.55

for me 65 is like 2200, but that is 4.56s and 4.88s

and for the OP, you are comparing apples to oranges. v6 needs more rpm to create the same amount of torque that the v8 is putting out. i think the amount of rpm for that speed is fine.
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  #12  
Old 09-28-2007
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i got 4.10s with stock tires 235s and im runnin about 3k at 75 3.0
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  #13  
Old 09-28-2007
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Quote:
Originally Posted by zabeard
3.42?? you mean 3.55

for me 65 is like 2200, but that is 4.56s and 4.88s

and for the OP, you are comparing apples to oranges. v6 needs more rpm to create the same amount of torque that the v8 is putting out. i think the amount of rpm for that speed is fine.
Well yes and no.... My stock gear ratio is 3.55 but with my larger tires, it is a 3.42.
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  #14  
Old 09-28-2007
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I'll get video of it for you.
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  #15  
Old 09-28-2007
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Your axle ratio won't change because of different tires. Your final drive ratio will be affected and might change relative to stock tires, but I think that's a rather confusing way to look at it.
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  #16  
Old 09-28-2007
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ive got 235/75/15's with 3.73 gears and 80 is just about 3000
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  #17  
Old 09-28-2007
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31's and 3.73's i do 2200-2300 rpm at 75 mph and at 80 its 2500 rpm
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  #18  
Old 09-29-2007
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i've got 31.5" w/ a 4.56 rear end. when my odometer say 70 (really about 63mph) i'm at 2700ish.
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Old 09-29-2007
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70mph 33's and 4.10's I am at 2600-2700
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  #20  
Old 09-30-2007
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follow this link. its a video or my trucks speedo. I know its not a great shot but you all know what you speedo says and thats 85-90 at 3,000
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  #21  
Old 09-30-2007
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Quote:
Originally Posted by DaGGer
follow this link. its a video or my trucks speedo. I know its not a great shot but you all know what you speedo says and thats 85-90 at 3,000

heh you better throw up some video then!
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  #22  
Old 09-30-2007
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i run ~3k at 70mph with 3.73's and 31's.
but my speedo is off so im going to guess 70 is around 80ish.
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  #23  
Old 09-30-2007
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mine was the same before i blewout my rear end and got 4.56 gears. i gotta get rid of my speed limiter. my top speed is now what? like... 80ish? driving fl turnpike all the time, that doesnt always follow flow of traffic. can anyone vouch for me?
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  #24  
Old 09-30-2007
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Sorry for the missed link I don't know what I was thinking. Its ****ty quality but its a Camera phone so oh well.

http://videos.streetfire.net/video/7...b90108d0b9.htm
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  #25  
Old 10-01-2007
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5speedin - does your truck feel like its struggling too much with the 31's? ive been thinking about moving up to them, but im driving on hills a lot and i dont want to lose too much, especially in the winter.
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