RPM Red line for 6.2L

[erasedhammer]

So I'm hearing more and more about people driving at 65 mph on freeways. I have started driving at 60 mph now and the rpm gauge (I have the windshield mounted one, runs off the alternator) and I'm almost at 3400 rpm at ~61 mph. So is the red line of the engine not 3400?

 

[Barrman]

The injection pump has a governor in it. It will slow down sending fuel when it reaches a set rpm. Who knows what each of ours is set it until we try bouncing it off of the setting. I don't know about you, but I cringe at the thought of just holding down the pedal to see where the engine will stop at.

I have done it on my M35A2, but 2775 rpm doesn't sound as tightly wound as the 6.2's do above 3,000.

 

[Chief_919]

By the book the max RPM on the 6.2/6.5 is 3600 rpm.

 

[Jakob1944]

So I'm hearing more and more about people driving at 65 mph on freeways. I have started driving at 60 mph now and the rpm gauge (I have the windshield mounted one, runs off the alternator) and I'm almost at 3400 rpm at ~61 mph. So is the red line of the engine not 3400?

What are you getting....about 10mpg max ?

 

[CUCVLOVER]

In my cucv I turned the 6.2 around 3400rpm -65-70mph all the time with no problems. I have had it to 4500 once and didn't blow it up.
6.2 are tough motors

 

[Assel]

In Germany we have to pass a Exhaust Gas test where they push your engine to its deadline ... a few times. I thought my 6.2 was about to explode, they had to restart their testing device because on the first attempt my CUCV killed it. All shop doors open, smoke everywhere ,on the 2nd attempt they pushed it 6-7 times to 3600rpm and hold it there for 5-6 seconds (they measured it with a magnet) . Luckily I passed the test and my engine still runs good & is not leaking anything. I had driven it for about an hour before that, to make sure everything was on operating temperature...

 

[erasedhammer]

What are you getting....about 10mpg max ?

Surprisingly enough, I was getting around 14 mpg. As soon as I calculated that, I started driving at 60 all the time.

 

[Jakob1944]

Surprisingly enough, I was getting around 14 mpg. As soon as I calculated that, I started driving at 60 all the time.

Is yours "slick"......or you have lots of options hung on it.......mine is a 998a1 2 door soft top with nothing extra on it

 

[erasedhammer]

Is yours "slick"......or you have lots of options hung on it.......mine is a 998a1 2 door soft top with nothing extra on it

You can look at my avatar. I only have the helmet top on it currently. It's light and is decently slick. I did recently put on a 7' whip.

 

[Jakob1944]

You can look at my avatar. I only have the helmet top on it currently. It's light and is decently slick. I did recently put on a 7' whip.

Outstanding pix.....