01 accord v6 ex 4th gear rpm at 60 mph is 2750. Doesn't seem to add up.

 

Why doesn't it add up?

 

Said that wrong. What should rpm be at 60 mph with a 01 ex v6? Some say 2400 and some say 2000. the final drive ratio of 4.2 kinda thru me. Seems way high.

 

Observed on my way into work this morning:

• 2,450 RPMs: 60 mph while climbing a hill (no torque converter lockup)
• 2,000 RPMs: 60 mph on a level roadway (torque converter locked up)
• 1,500 RPMs: 60 mph while descending a long grade (no torque converter lockup)

FWIW, I'm not sure where you got your gear ratio information, but it is incorrect; consider the following (per my documentation which I believe to be correct):

• 4.20 -- Final Drive Ratio
• 2.53 -- 1st Gear
• 1.50 -- 2nd Gear
• 0.95 -- 3rd Gear
• 0.61 -- 4th Gear

 

than i am way off. i am at 3k at 60. i can feel the 4 shifts. i just got this car for way cheap due to bad wheel bearings and wasted front tires. i fixed the bearings and thru on a set of 195/65/15 front wheels i had laying around but they dont match the rear 205/65 tires and i got an ABS light. i have never had a 01 vintage honda so i dont know how the trans should shift. i have owned camrys, sonatas, prius and we have a 2015 civic but that has the cvt. can you have 4 shifts and be way off in 4th gear?

 

It doesn't seem to add up to me either...

Stock size is 205/60-R15, right?
Different tires vary a bit but sorta like 875 revs per mile (TireRack specs)

875[rev/mile] * 60[mile/hr] * 1/60[hr/min] = tires rotating at 875 rpm.

overall gearing = 0.61*4.20 = 2.56 (with TC locked up)

So you should get 2240 rpm at 60mph when the TC is locked up. Doesn't match for either of you. And it seems too far off (>10%) to be explained by the common situation of the speedometer calibration reading high.

 

I drove it on side rural roads yesterday to get a feel for the shifting. there are for sure 4 speeds of motion. 1-2 is pretty obvious. but it goes into 3 pretty fast and will wind up to 4k before it will shift to 4. I can lift off and make it shift to 4th and the rpms will drop by 1000 at least. I can cruise in 4th gear at 40 mph @2500rpm? and than shift to 3 and it will rev up to 3200 or so. is it slipping in all gears?

 

There were some transmission codes that didn't trigger the CEL/D4 light on the 94-97 accords, and your 01 may be the same.

Stop by a parts store and have them scan for codes.

 

Thinking back to this morning, the tach needle was just above 2000 at an indicated 60, so maybe somewhere in the 2000-2050 RPM range. I then did the math on the 205/65 R15 tire size and came up with a circumference of 80.086", and this in turn works out to 791.1507 tire revolutions per mile. Assuming the engine to wheel revolution ratio of 2.562 is correct, then my math suggests the engine revolutions per mile should be 2,027 (which at 60 mph would equate to 2,027 RPMs).

 

I believe the TC locks up in all gears so you may think the shift is really 1-2-3-4 gears but it might not be. I also think the TC lockup function only changes rpm by 2-300 rpm. 60 mph @ 3k rpm? duh, you are in 3rd gear.