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5.0L Highway Revving

Posted: Tue Apr 26, 2005 12:50 am
by Dreded
Ok im curious what kind of RPM's you 5.0L fellas do going 100km/h(60miles/h) specifically anyone with a c-4.

Im doing about 3000rpm with 3.55 Rear Diff.

This seems kinda high to me im thinking there might be something wrong with my tranny. But it seems to shift fine in all 3 gears.

Also if this is wrong any ideas what could cause it?

Posted: Tue Apr 26, 2005 5:44 am
by Nobody
What size tire are you running? Are you sure you have 3.55, that's not a factory Bronco II ratio.

I turn about 2800 or so at 60MPH

Have a look here

http://www.sierrabronco.com/TireGearRatio.htm

Posted: Tue Apr 26, 2005 8:45 am
by Dreded
Nobody wrote:What size tire are you running? Are you sure you have 3.55, that's not a factory Bronco II ratio.

I turn about 2800 or so at 60MPH

Have a look here

http://www.sierrabronco.com/TireGearRatio.htm
thanx man i couldnt find that chart I knew it was out there :)

I have 31" tires and the 3.55's is what i gots I guess im supposed to be at 3000 cause the cvhart says about 2600 with a manual mines auto so makes sense :)

im just so used to my 5.0L mustang 5-spd 1800 rpm doing 100km/h wich I liked lotsa power like 24mpg at the 3000rpm area its hard to get much more power :)

Posted: Tue Apr 26, 2005 8:49 am
by Nobody
What axle are you running?

Posted: Tue Apr 26, 2005 8:51 am
by Dreded
Nobody wrote:What axle are you running?
one from a friends Diesel Ranger and they are 3.45's sorry :) I was thinking about using 3.55's from an Explorer

Posted: Tue Apr 26, 2005 8:57 am
by Nobody
OK, now I believe you ;)

Is it a 7.5?

Posted: Tue Apr 26, 2005 9:03 am
by Dreded
Nobody wrote:OK, now I believe you ;)

Is it a 7.5?
Just cause I get confuzzled easily is no reason to call me a liar :redneck:

yea the 3.45 is a 7.5"