Engine power issues with 37's?

[One more upgrade]

Excellent! Thank you!

I installed KO2 37's, Method wheels and procal tune originally. I did not notice much of any performance reduction, just MPG. Now I run 40's with 5.13 gearing and it still hauls butt, and MPG is even worse. In my opinion, the 2.7 makes plenty of torque.

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[1st 75th ranger]

I just had my lift installed. Fox 2.1 coil-overs, Icon tie rods, and Elevate UCA's. Haven't maxed the lift yet. At this point it's just leveled. I do go out rock crawling as often as I can and want some more clearance. I'm wanting 37's, but I have a friend that thinks 37's will kill my power. I have a '22 Badlands Sasquatch, with 2.7. Anyone have any thoughts on the power issue?

i have a full knn air intake and front to back borla exhaust no tuner and gobs of power for 36X12.5X7 i run

 

[Dorf2point0]

37 KM3's lift, exhaust, rock rails, bumpers, cai, ford performance tune on the 2.7L and its very fast on 93 octane. I used to own a Challenger with the 5.7L hemi and a 392 getrag rear end. I could hit 0-60 in 4.5 all day. The Bronco with all the extra crap is in the low 7's could easily get it into the 6's with down pipes and a better tune maybe even upper 5's.

Nice rig…..

 

[Broncory]

You can't just throw 37's on any truck or Jeep and think things will be kosher, since the gearing and the comparative weight/size upgrade can make a big difference. Plus the older Jeep engines weren't great. However, with the 2.7 and the ProCal, you might feel a little lag, but I doubt you'll even notice after a few weeks.

As somebody mentioned, try to get lighter rims (Method bead grips 25-30lbs) and go for a mid-range weighted tire (+=65lbs) like a Baja Boss or Kenda Klevers. You'll add some weight but not as much, at least. Be wary of tires that weigh perhaps above 75lbs.

None of these mentioned tires, are anywhere close to being below 70 lbs in a 37" tire.

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