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| steel vs aluminum http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=8&t=19511 |
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| Author: | Sport [ Tue Apr 10, 2007 10:38 am ] |
| Post subject: | steel vs aluminum |
ok I have 15x8 steel wheels with 31 x10.5 tires, these things are heavy and as a result my MPG is a little better then 13. I was wondering how much I would be saving if I went back to the stock aluminum and got tire size 245 75 16 either the MTRs or some all terrain with wheel spacers of course. Should I even consider it? |
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| Author: | ATXKJ [ Tue Apr 10, 2007 11:17 am ] |
| Post subject: | |
It's not really the wheels - it's the tires My MTR's are 73 lbs on Aluminum Moab's and my stock Wheels/ tires were 45 lb's - wheel weight are almost identical and they cost 1-2 mpg almost all of the tire weight is on the outside in the tread - it makes a longer lever that takes more torque to turn to get the wheel/tire moving or stopped the wheel weight is concentrated in the center - even if it weighs more it doesn't take much more energy to turn (you will notice wheel weight in suspension response to bumps) That said - if you have room to store a spare set of wheels/ tires - having a street set and an Off Road set is a good idea |
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| Author: | tommudd [ Tue Apr 10, 2007 4:21 pm ] |
| Post subject: | |
Wheel weight would be more than 2 lbs. between 15 x8 steel and stock aluminum I would think, more like 10 lbs or so |
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| Author: | tjkj2002 [ Tue Apr 10, 2007 7:18 pm ] |
| Post subject: | |
My steel soft 8's weigh 27lbs a piece(16x7), my old steel rockcrawlers with the fake beadlocks weighed in at 38lbs(16x8) then add real heavy 265/75 MT/R's(55lbs apiece). |
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