Liberty off-road stats - anyone?

scoobysnax · **Posted:** Wed Oct 03, 2007 2:23 pm

Does anyone know what the following stats are for a stock liberty with a 4x4 3.7?

Max climbing grade?
Max side-slope?
Max water fording ability?

These are advertised on the H3 commercials and websites everywhere but I can’t find it on any Jeep sites (other than the Wrangler Rubicon.)

jsc7002 · **Posted:** Wed Oct 03, 2007 2:31 pm

ill see if i cant find them for you

i know as a general rule for water fording is about half way up your headlights the dealership will say about 22" or 24" i think

DarbyWalters · **Posted:** Wed Oct 03, 2007 3:07 pm

I think officially the fording is 20.5" with the top mounted air box

I think Side Slope is in the 37 degree area +/- 2 degrees

I would bet 55 degrees +/-2 degrees incline

skywarn · **Posted:** Wed Oct 03, 2007 5:10 pm

DarbyWalters wrote:

I think officially the fording is 20.5" with the top mounted air box

I think Side Slope is in the 37 degree area +/- 2 degrees

I would bet 55 degrees +/-2 degrees incline

.

How does this compair next to the H3 Numbers?

Johnboy · **Posted:** Wed Oct 03, 2007 5:11 pm

Might as well include approach, departure, and breakover. However, I do not know them...

jsc7002 · **Posted:** Wed Oct 03, 2007 5:12 pm

approach is 38 degrees and departure is 32 degrees

jerbacher · **Posted:** Wed Oct 03, 2007 5:27 pm

official from hummer.com:

H3

STD
ground clearance 8.5
approach 37.5
departure 35.5
breakover 23.5
side slope 40
grade 60
fording 24in @ 5mph
16in @ 20mph

W/ 33IN TIRES
ground clearance 9.1
approach 39.4
departure 36.5
breakover 25
side slope same
grade same
fording same

Freshmud · **Posted:** Wed Oct 03, 2007 5:37 pm

DarbyWalters wrote:

I think officially the fording is 20.5" with the top mounted air box

I think Side Slope is in the 37 degree area +/- 2 degrees

I would bet 55 degrees +/-2 degrees incline

ive gone deeper on accident for short periods of time no big deal though i had her checked numerous times

Dje Ryu · **Posted:** Wed Oct 03, 2007 8:30 pm

Freshmud wrote:

DarbyWalters wrote:

I think officially the fording is 20.5" with the top mounted air box

I think Side Slope is in the 37 degree area +/- 2 degrees

I would bet 55 degrees +/-2 degrees incline

ive gone deeper on accident for short periods of time no big deal though i had her checked numerous times

If you extend the breathers and take it slow, that's not a problem.

_UnLiMiTeD_ · **Posted:** Wed Oct 03, 2007 8:57 pm

the jeep liberty is about on par with the h3 basically

scoobysnax · **Posted:** Wed Oct 03, 2007 9:10 pm

Cool, thanks. OK, here's a question, say you are on more than a 37 degree side slope AND you have traction. Anything past that and it's rool over time? Personally, I think I've always slipped the rear before I've gotten an angle that steep but I've never done it on just rock.

scoobysnax · **Posted:** Wed Oct 03, 2007 9:11 pm

Cool, thanks. OK, here's a question, say you are on more than a 37 degree side slope AND you have traction. Anything past that and it's roll over time? Personally, I think I've always slipped the rear before I've gotten to an angle that great but I've never done it on just rock.

Sir Sam · **Posted:** Wed Oct 03, 2007 11:55 pm

jerbacher wrote:

official from hummer.com:

H3

STD
ground clearance 8.5
approach 37.5
departure 35.5
breakover 23.5
side slope 40
grade 60
fording 24in @ 5mph
16in @ 20mph

W/ 33IN TIRES
ground clearance 9.1
approach 39.4
departure 36.5
breakover 25
side slope same
grade same
fording same

screw 5mph:

http://colorado4wheel.com/images/movies/movies4x4b.mov

DarbyWalters · **Posted:** Thu Oct 04, 2007 12:13 am

The Liberty is 20.5" @ 10mph...a bit more down at 5 mph

Approach.................34.6
Break Over..............21.2
Departure.................32

This is on 235/65/17s (only a 28.9" tire)

Hummer OEM is 265/75/16 (which is a 31.8")

Toyota FJ

A.............................34
BO...........................N/A
D.............................30

265/70/17...30.7"

Nissan XTerra OR

A.............................33.2
BO...........................24.6
D.............................29.4

265/75/16.................31.8"

Jeep Liberty on very small tires does so well because of 104.3" wheelbase and shorter overall length. Just taller tires raises all those numbers up...235/75/16......29.84" will fit on stock KJ. That is almost 1" taller than the 235/65/17 used for the measurement.

DarbyWalters · **Posted:** Thu Oct 04, 2007 12:13 am

The Liberty is 20.5" @ 10mph...a bit more down at 5 mph

Approach.................34.6
Break Over..............21.2
Departure.................32

This is on 235/65/17s (only a 28.9" tire)

Hummer OEM is 265/75/16 (which is a 31.8")

Toyota FJ

A.............................34
BO...........................N/A
D.............................30

265/70/17...30.7"

Nissan XTerra OR

A.............................33.2
BO...........................24.6
D.............................29.4

265/75/16.................31.8"

Jeep Liberty on very small tires does so well because of 104.3" wheelbase and shorter overall length. Just taller tires raises all those numbers up...235/75/16......29.84" will fit on stock KJ. That is almost 1" taller than the 235/65/17 used for the measurement.

Green Renegade · **Posted:** Thu Oct 04, 2007 1:35 am

It's basically impossible to climb a slope greater than 45 degrees as a friction coefficient of 1 (or greater than 1) is required. If you meant approach angle, that is something different, but as far as a sustained grade, I'm guessing around 60%, or 30 degrees. You're not likely to have enough traction to do better than that.

Rusty the Scoob · **Posted:** Thu Oct 04, 2007 6:49 am

Sir Sam wrote:

jerbacher wrote:

official from hummer.com:

H3

STD
ground clearance 8.5
approach 37.5
departure 35.5
breakover 23.5
side slope 40
grade 60
fording 24in @ 5mph
16in @ 20mph

W/ 33IN TIRES
ground clearance 9.1
approach 39.4
departure 36.5
breakover 25
side slope same
grade same
fording same

screw 5mph:

http://colorado4wheel.com/images/movies/movies4x4b.mov

You're not fording if the water is barely above your tires.

The 5mph guideline is to keep the water from going over your hood, and thus into the intake.

Sir Sam · **Posted:** Thu Oct 04, 2007 2:07 pm

Rusty the Scoob wrote:

Sir Sam wrote:

jerbacher wrote:

official from hummer.com:

H3

STD
ground clearance 8.5
approach 37.5
departure 35.5
breakover 23.5
side slope 40
grade 60
fording 24in @ 5mph
16in @ 20mph

W/ 33IN TIRES
ground clearance 9.1
approach 39.4
departure 36.5
breakover 25
side slope same
grade same
fording same

screw 5mph:

http://colorado4wheel.com/images/movies/movies4x4b.mov

You're not fording if the water is barely above your tires.

The 5mph guideline is to keep the water from going over your hood, and thus into the intake.

Well not in that picture(the roosts just look cool), but at the end of the video I go through the same creek early in the season when it was very high, now that was fording!
(and I was 16 at the time so I was a little throttle crazy once the water went over the hood)

DarbyWalters · **Posted:** Thu Oct 04, 2007 2:10 pm

My Bad...Yes % not "degrees" on the hill incline...

Liberty off-road stats - anyone?

Who is online