How many RPMs at 60mph... - JeepForum.com

 
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post #1 of 5 Old 05-09-2013, 04:11 PM Thread Starter
mwitkowski24
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1998 XJ Cherokee 
 
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How many RPMs at 60mph...

How many RPMs should I be turning at 60mph with stock tires, aw4, 3.55 rear end? Right now im at 2100 and that seems high to me.

Jeep sat in the driveway for about a week and the battery died. After I charged the battery it started ok, but almost stalled a few times at stop signs. Once it warmed up it was fine. Its not throwing any codes and has a new TPS and IAC. Maybe im just paranoid...

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post #2 of 5 Old 05-09-2013, 04:31 PM
1990JEEPXJ
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Sounds perfectly normal to me. That's not high at all. I run about 2500 at 65 with my current tire/gear combo. You're fine

Completely stock, and keeping it that way...

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post #3 of 5 Old 05-09-2013, 04:33 PM
Moto4x4
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Its a jeep, not a race car jeeps arent meant to go 100+ mph, or even over 75 for that matter! It sounds fine to me too

I call her, Rubinon!
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post #4 of 5 Old 05-09-2013, 04:36 PM Thread Starter
mwitkowski24
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Thank you, I knew it was the supercharged Pontiac Grand Prix I borrowed that was messing with my head.
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post #5 of 5 Old 05-09-2013, 04:55 PM
sAe23
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1995 XJ Cherokee 
 
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This page will let you calculate your RPMs, or you can refer to the chart...
http://www.superlift.com/library/gears.asp

Using their formula, you should be at or around 2500 RPM in THIRD, not OD, and with the torque converter unlocked...
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