Whats up with black rims?
#32
CF Veteran
Joined: Nov 2009
Posts: 1,262
Likes: 0
From: Conroe, Texas
Year: 1997
Model: Cherokee
Engine: I6
Back when I had my Hemi Ram, I went through three sets of rims. Two were steel and one was aluminum. The first steel set was the chrome stockers. I got rid of those because I don't like chrome; it's really overdone in the truck scene. The first set of aftermarket rims were black, 17" Cragar Soft 8's. Three of the four of them bent because steel wheels are thin and bend rather easily compared to aluminum wheels (which will crack or even break in extreme cases). Typically, aluminum rims are much stronger and lighter than steel wheels.
How much lighter? When I replaced the steel Cragars with some aluminum rims, they easily weighed half of what the Cragars did. We're talking about twenty pounds versus forty pounds (keep in mind we're talking seventeens here and not the typical fifteens that Jeeps run). Each pound of unsprung weight (wheels and tires) is equivalent to four pounds of sprung weight (anything in or on the car itself). If you do the math, by replacing the steel wheels on my Ram with aluminum, I reduced the same effects of having an extra eighty pounds in the truck per wheel. That adds up to the equivalent of 320 pounds of weight reduction. This affects both acceleration (which I felt immediately), deceleration, and handling.
I know that 99% of Jeep owners aren't concerned with street performance, but when you add the big tires that we tend to like, the added weight can really affect all kinds of performance and even gas mileage in a negative way. Instead of trying to gain some of that power back with intakes, exhaust, throttle bodies, and programmers, you could have just kept some of that performance by going with lighter rims in the first place. I'm going to upgrade to aluminum wheels on my XJ to try to reverse the negative effects from larger tires. I'm picking black because I like it better than any other color of wheel.
How much lighter? When I replaced the steel Cragars with some aluminum rims, they easily weighed half of what the Cragars did. We're talking about twenty pounds versus forty pounds (keep in mind we're talking seventeens here and not the typical fifteens that Jeeps run). Each pound of unsprung weight (wheels and tires) is equivalent to four pounds of sprung weight (anything in or on the car itself). If you do the math, by replacing the steel wheels on my Ram with aluminum, I reduced the same effects of having an extra eighty pounds in the truck per wheel. That adds up to the equivalent of 320 pounds of weight reduction. This affects both acceleration (which I felt immediately), deceleration, and handling.
I know that 99% of Jeep owners aren't concerned with street performance, but when you add the big tires that we tend to like, the added weight can really affect all kinds of performance and even gas mileage in a negative way. Instead of trying to gain some of that power back with intakes, exhaust, throttle bodies, and programmers, you could have just kept some of that performance by going with lighter rims in the first place. I'm going to upgrade to aluminum wheels on my XJ to try to reverse the negative effects from larger tires. I'm picking black because I like it better than any other color of wheel.
#34
Senior Member
Joined: Jan 2010
Posts: 686
Likes: 0
From: Lake Orion, MI
Year: 2008
Model: Grand Cherokee
Engine: 3.0L CRD
George Balhan, drives the Escalade in the Monster Jam truck series
i laugh every time i see this thing when i flip past the SPEED channel and thye are playing the re-runs of the 2009 Monster Jam events.
i laugh every time i see this thing when i flip past the SPEED channel and thye are playing the re-runs of the 2009 Monster Jam events.
#36
CF Veteran
Joined: Nov 2009
Posts: 1,262
Likes: 0
From: Conroe, Texas
Year: 1997
Model: Cherokee
Engine: I6
#42
Seasoned Member
Joined: Dec 2009
Posts: 462
Likes: 0
From: Lake in the hills,IL
Year: 2001
Model: Cherokee
Engine: 4.0
#44
CF Veteran
Joined: Jan 2010
Posts: 2,059
Likes: 1
From: Indianola IOWA
Year: 1992
Model: Cherokee
Engine: 4.0
that thing shows a ton of creativity. just because you are not into doesnt mean you have to make fun. I think it looks great and happy to see someone do so much work on there cherokee
#45
Senior Member
Joined: Jan 2010
Posts: 686
Likes: 0
From: Lake Orion, MI
Year: 2008
Model: Grand Cherokee
Engine: 3.0L CRD