Location: Under a sheet of ice, you know, from Global Warming!
Originally Posted by atj54
I have a 95 YJ with 4 inch suspension lift and 33x12.50 mud terrains. Any ideas on getting more power or should I change tire size? Or any mechanical ideas appreciated.
Upgrade to a new Flux Capacitor, make sure you get the one with the self lubricating muffler bearings! It won't add much in the way of horsepower, but that, 88mph, and 3.2 gigawats of electricity, it won't matter how fast you go, you will always arrive before you left! Great factoy option on the new JK's, I'm pretty sure it's available thru MOPAR for YJ's and TJ's!
Change to a smaller tire diameter or lower the gearing (numerically higher).
Do you have a 4.0L or the 2.5? I have a 2.5 with 30" tires and can't imagine the power it would lose trying to push 33s.
Do you have auto or manual tranny?
You have to do something to get a substantial amount of your torque back. The gears will do it. If you have the 2.5, you should have 4.11 gears. You can at least go to 4.30s, maybe even 4.56s is you have a 5 speed.
I just priced gears at quadratec.com.
They list 4.56 gears at $169 (Front) and $189 (Rear). That's almost $360 in parts. I'm guessing labor could be another $200+ per axle ?? Somebody correct that rate if I'm wrong.
You can get into a new set of 31" BFG tires for $124 ea (BFG AT) or $112 ea (BFG Rugged Trail) at tire rack.
I have a 2.5. Manual tranny 5 speed. what cost am i looking at to regear. or would it be better to go to 31's?
Stay with your 33's, just regear for the tires.....
For the amount you'd spend on 31's you could regear, If you have the knolegde to do it yourself, you'll save big! But if you havent, if youre off by a thousandth's of an inch, it could mess you up big time
Change to an electric cooling fan, that will give you 10-15 more horsepower...and gears, don't know what that will do to your mpg's though.
1989 Wrangler YJ, 4.2, 5 speed, daily driver. Weber carb conversion, HEI distributor, flowmaster series 40, all Amsoil fluids. Pro Comp 2.5 lift, 31' BFG's on black wagon wheelies. Will be doing more to it later, wife has me on toy restriction right now