513s RPM range
- Thread starter Jeeper714
- Start date
cozdude
Guy with a Red 2-Door
Jeeper714
Member
based off the chart in the noobie FAQ, yes it is right
Yeah I've looked at that but wanted to double check since people raved about getting their mpgs/Eco back once they regeared - both of which have shit the bed for me since the regear.
cozdude
Guy with a Red 2-Door
well for me personally i didnt really notice a MPG increase as much as a power increase when i regeared. my mpg did improve on the highway by stayed the same around town. also i have the 3.8 with 5.13's and 35's so my results will be different from yours. im sure once you put the 37's on you will notice the results you were looking for since your RPM's will decrease.
ZuidJK
New member
With 5.13s and the 3.8 on 37 with slabs..at 80km/h in 6th I'm at about 1800rpm..I think that's about 55mph....?
SDG
Caught the Bug
I think I cruise at about 75 and 3k? Thats with the 3.6, 5.13, and 37s on slabs @ 30psi.
Gas mileage, mixed driving over 5 tanks was about 13.6 mpg. Long drives on the freeway with minimal traffic at 75 is around 18mpg, at 80 its closer to 16. But its all variable.
500 mile drive into a strong headwind I averaged 10.5 mpg, same drive in reverse with no wind was 16.
Gas mileage, mixed driving over 5 tanks was about 13.6 mpg. Long drives on the freeway with minimal traffic at 75 is around 18mpg, at 80 its closer to 16. But its all variable.
500 mile drive into a strong headwind I averaged 10.5 mpg, same drive in reverse with no wind was 16.
JKWrang
New member
No. You would - 4.56 is good for you. Thats what ill be getting!
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StrizzyChris
New member
Yup...
4.56 if you never plan to ever go over 35's and want the ability to go back to stock without super high RPM's when you do at highway speeds.
4.88 if you think it's at all possible that you'll eventually go 37's
Sithwindu
Member
Well 37's will certainly be in the future, 5.13 are gonna be the gears I ventually go to, I'd hate to go 4.88 and regret not getting more power heh
Typically, I would recommend 5.13's with a set of 37" tires and that would put your RPM's at about 3k when running more like 70+MPH. Being that you are most likely running something closer to a small 37 or big 35, yeah, that sounds about right depending on what your tires actually measure out to.
Jeeper714
Member
Thanks Eddie.
My slabs and 37s were installed yesterday so I'm back to a normal rpm range!
SWEET!! Awesome looking Jeep you've got there :thumb: