Gearing is going to the only cheap option other then going FI. BTW people with sport cars will pay well over $5k easily to get 10 more HP out of the engine. Any bolt on mods will add 2-3 HP at best and are more so for the noise it makes.
Unfortunately, if you have a 10 JKU and it happens to have an auto trans with 3.21 gears you have a perfect storm for lack of performance. The only thing that's reasonable to do in order to help is to re-gear.
Most bang for the buck is Superchips Flashpaq , you will have to run premium fuel plus keep your weight low and run a non aggressive A/T tire. Next up is a supercharger at $5-6K. Hopefully you have at least 373 gears 410 or lower better yet.
Superchips Flashpaq helped with shift points and throttle response. My dad put $15k in bolt ons and Dyno tunes on his C6 Vette for a net gain of 65 hp. His '05 is hanging with a buddy's '15 C7 so he's happy. Spend the money if you want. You can't take it with you
Ever take you Wrangler off road in the mountains? Deduct three percent horsepower and torque for every 1,000 feet in altitude. I'm 15% down from factory ratings in my driveway and almost 30% at my favorite trails. That loss is good for supercharged engines, too.
I'd seriously consider a turbocharger. Gale Banks has a system for older Wranglers, but nothing for the JK yet.
You'll never notice 10-20 more hp. Live with it or trade it. My 2010 with 3.73's and 6 speed is perfectly acceptable with 32" tires. In fact it has more power than some newer versions I drove with the 3.6, auto and 3.21 gears.
3.6 hands down. I was messing around with my local shop and told him maybe I would eventually do a HEMI. He said with the 3.6, no need and I would be better off putting the money into other things- but with the 3.8 he would absolutely recommend it for sure. My boyfriend has a HEMI that replaced his 3.8 (2007) - but it was already converted when he got it.
My dad has a 2008 Wrangler with a v6, automatic. The thing has no power, it sees a hill coming an starts slowing down :). We tried to use it to pull a car out of the ditch and even in 4 low it wouldn’t pull it out. The odd thing is it wouldn’t spin the tires at all either (maybe traction...
My 2014 automatic Jeep Wrangler is having issues. Around New Years I had the hot alarm come up. Added oil and problem went away , had an oil change after that and even went on a long trip and no issues. Now , a few weeks ago, had the same issue , but I had recently had an oil...
Hello, I hope you're all being safe and staying healthy out there.
Will confess that when it comes to automotive maintenance, I'm basically a 2nd grader. No instinct, tools, knowledge or courage.
That being said, I have a new soft top coming in form my 2013 Wrangler Sport (2 door). However...
I need to know what the gear oil capacity is when I install my Poison Spyder Diff cover. I have seen multiple threads saying fill it to the bottom of the fill hole. Others say use the amount that is specified in the owners manual. Does the Poison Spyder Diff cover have a greater fluid...
1st post here but have read a lot of threads. Jeep is a 2012 Wrangler Sahara. It's a Canadian model but that shouldn't change things. The left dash gage with the MPG, caution advisories, temperature, etc. is intermittent. It may or may not come on when starting and randomly will come on showing...
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