I am gonna take the 4runner out for its first road trip. It will be 3 hours of highway at around 70. I rebuilt the motor last April. I just threw a tach in the truck to see my RPMs. And after doing some searching, i didnt find my answer.

My question...

What is a happy RPM range for longer durations for the 22re? It looks like at 70 MPH I maybe doing about 3000-3500 RPMS. Is this detrimental to the motor or will it work fine? I can drive slower at 60-65 but would like to be at least at speed limit. Should i be worried, or am i still having trauma from when i last blew my motor.

thanks

 

3k rpm's is fine. You're paranoid.

 

I can accept that, i am not that much in denial

 

I drive 70 every day on the freeway and my tach is at 3 just like yours. You'll be fine or it will rather.

 

if you're worried about the break-in procedure, just shift between 4th and 5th every now and then (o/d on then o/d off for the automatics).

my 22re with 31's and the 88 stock ratio (don't ask, I don't know) runs at about 2800 @ 70 mph (gps verified).

 

Abe, I believe 22REs with the 5 speed (or maybe the auto, I dont remember) and the factory 31'' package came with 4.88s. Wish I could find a set...

 

I'm sure if you rebuilt everything correctly, it will take all the abuse you throw at it without a sweat.

With mine, I had to change the headgasket in the springtime, as it had developed an external leak due to age. I drive it quite hard when outside the city (I drive like a granny in the city -- no hard starts, etc.).

Driving at consistent highway speeds should be pretty easy for the motor -- there's plenty of airflow, and, barring any mechanical issues, there isn't much of a reason for things to go wrong.

I've heard stories of people "setting their cruise control at 4500 rpm" on 22re's, when they were going against headwinds or uphill for 3+ hours at a time (I've never been so cruel as to attempt such a feat).

When I first started driving, with a heavy left foot, I would drive at constant speeds around 85 - 90 mph (130 - 150 km/h) on our highways, about an hour at a time, with no problems. RPMS were about 3100 - 3200 if I recall correctly.

 

Well the worrying was for nothing (knock on wood) I went and came back. At first i did just under 70 and on the way back i was doing 70 and pushing it to 75. I do know i need to do some work on the exhaust it is a bit loud. But it ran like a top. The motor was already broke in, just didnt go "far" with it.

I did write down my RPMs.

65 = 2600
70 = 2800
75 = 3000

This is a 89 4runner, 22re, 5 speed, 4.10 gears and 32 inch tires
I did get to the 75 on straight land and downhill, but forget trying to get anymore out of it with a slight incline. I am going to get my gears probably next month, so with 4.88s it will probably be a little more, i just hope not alot more RPMs

Thanks for the moral support.

 

I've been wondering the same thing. My truck is the 4x4 with the 22re 5 spd manual, factory 4.10 gearing sitting on 31x10.5x15 mud terrain tires; it holds 70 mph at exactly 3000 rpm, 75 mph at around 3200 rpm. Is this safe? Or am I burning my engine up? It has 185xxx miles right now, fresh oil change, fresh air filter, all fluids just gone through, drive shaft all greased up. I just don't want to cause any engine damage when I'm road-trippin. it needs a timing chain soon, last one was done at 135k. Anybody know for sure?

 

Like was said above, if everything is mechanically sound, no problem.

 

I want to see what my truck rpm's are at idle. Can anyone tell me how to hook a lead from my multimeter to the negative side of the coil on my 1994 22re? I know it's the white wire, but there is no way to attach the lead to the wire. It's not a coil with posts and nuts that you connect wires to. Both the black and white wires go into a connector that you push on to the coil.

 

The tach wire, on the 22R, is a round green (IIRC) plug with a single female terminal. You can use a male spade terminal poked in there to clip your tach onto for testing.

 

hey thanks for the info. Is that the same for a 22re? that's what mine is... if so, where is this green wire, with a female connection I assume, located?

 

I believe it is, since they both come off of the coil. The connector is usually hanging around the driver side wheel well, near the coil. It might be plugged into a rubber grommet in the inner fender wall. Look around there and you should find it. I'm not sure its a green wire, rather a green plug. Could also be white, its been a while. Take a look in the factory service manual to verify.

 

22re = any rpm all day long!

 

I run 4500+ RPM on a 8% grade here at 8500 feet. It's a 5 mile stretch that runs up to the highest point on I-80. It's good to blow her out every once in a while...