Expecting to much?

[purple93ranger]

Just got my truck up and going again with a 40,000 mile 4.0 ohv. When I go down the interstate 70 mph 5th gear it feels gutless. The truck has 33 inch tires and from the best I can tell has 4.54 gears. When at 70 mph the truck is right about 2500 rpm. Side note the truck runs great and feels good in every other gear and situation.

 

[James86]

4.54 gears seem like it should be screaming higher than 2500rpm at 70. I'm at 2,500rpm at 60 with 4.10s and a 4spd auto with 31's... my 3.0 actually seems to be MORE playful at interstate speeds.

 

[Captain Ledd]

M5OD-R1?

That's about right actually. I ran a quick calculator I have and got 2600 RPM @70mph with 4.56 gears and a 32.6" tire (accounting a bit for tire wear/squat). It'll read a bit different on top of that on the speedometer because the '93's speedometer still uses gears and you can only get it so close.

I've never done much with the 4.0's so I can't comment if it's doing what it's supposed to. But I AM the guy who went to 4.56 with 235/75R15's with a 2.3L. Seems a common trend with Rangers that they like the gear a step (or two - 2.3L/3.0L) deeper than most?

 

[swynx]

M5OD-R1?

That's about right actually. I ran a quick calculator I have and got 2600 RPM @70mph with 4.56 gears and a 32.6" tire (accounting a bit for tire wear/squat). It'll read a bit different on top of that on the speedometer because the '93's speedometer still uses gears and you can only get it so close.

I've never done much with the 4.0's so I can't comment if it's doing what it's supposed to. But I AM the guy who went to 4.56 with 235/75R15's with a 2.3L. Seems a common trend with Rangers that they like the gear a step (or two - 2.3L/3.0L) deeper than most?

just depends on the engine size, the toyota guys run like 5.38 5.7x cuz of there little 4 bangers. we have the choice for the 4.0 so we can run 4.88 or 4.56 with the same size tires (35) and then i see a lot of v8 guys run 40s on 4.56.

i have 33's with 3.73 on my 4.0 and i can cruise at 65-70 in 5th but its pretty gutless, it has a little bit of leeway for short small hills, but most the time i just leave it in 4th and cruise at like 3200 rpms.

 

[bigmark303]

It only makes 160hp at best. My question is can you keep it below 70mph in maybe the 55-60mph range? If not anything above 60mph in most rangers (excluding the 4.0 SOHC) no matter the gear and tire setup is gutless. They just dont make that kind of power to be keeping up with cars going 60 plus mph.

Its just your truck, it will never cruise like a car even in its stock form.

 

[swynx]

It only makes 160hp at best. My question is can you keep it below 70mph in maybe the 55-60mph range? If not anything above 60mph in most rangers (excluding the 4.0 SOHC) no matter the gear and tire setup is gutless. They just dont make that kind of power to be keeping up with cars going 60 plus mph.

Its just your truck, it will never cruise like a car even in its stock form.

agreed, this truck makes torque not horsepower, so its not going to feel like it has balls. itll pull most anything, just wont feel fast.

 

[Mac]

It only makes 160hp at best. My question is can you keep it below 70mph in maybe the 55-60mph range? If not anything above 60mph in most rangers (excluding the 4.0 SOHC) no matter the gear and tire setup is gutless. They just dont make that kind of power to be keeping up with cars going 60 plus mph.

That would be 160 hp at 4200 rpm, at 2100 it's about half that, only 80 hp, and it takes about 40-60 hp just to move thru the wind. Little motors need the gears to keep the rpm's up so there is power available.
Dave

 

[RangerSVT]

Was the timing ever checked?

SVT

 

[purple93ranger]

Sorry for the late reply. My dad had checked the timeline and everything g seemed ok according to him. Did not realize that it made its max hp at he high of the rpm range. Drove it again today and semmed to scream Dow. The highway (struggling on step hills). But for the most part didn't want to stay under 75. And yes I'm pretty sure I have the m50d r1. ........side note I think I remberbseein something about that transmission needing so e plugs replaced at the top because of leaking

 

[RangerSVT]

Its common to replace the shift rail plugs in the shifter plate...

SVT