Pete M Posted October 4, 2019 Share Posted October 4, 2019 this one was harder to find on my own rigs since I've not really ever built an MJ for power or speed. But I'll go with the axle gear upgrades. dang those 3.07s suuuuuuck. 3.07 to 3.55 was my first experience what what a regear could do. man did it put a smile on my face. I would have done 4.10s but I didn't know better yet. Plus the dana 35 blew up and so I had just thrown a ton of money at a 44 with 3.55s so it was doubtful I would have had money for a gear change on top of that. any who... gears for the win! Link to comment Share on other sites More sharing options...
89 MJ Posted October 4, 2019 Share Posted October 4, 2019 I agree-gears. Not necessarily go fast, but you launch harder. Link to comment Share on other sites More sharing options...
JMO413 Posted October 4, 2019 Share Posted October 4, 2019 Bored throttle body definitely makes a noticable difference. And you can support a CC vendor! Link to comment Share on other sites More sharing options...
Smokeyyank Posted October 4, 2019 Share Posted October 4, 2019 DIY supercharger! Link to comment Share on other sites More sharing options...
89 MJ Posted October 4, 2019 Share Posted October 4, 2019 6 hours ago, Smokeyyank said: DIY supercharger! Could you please elaborate? How much power does it add and what did you do? Thanks Link to comment Share on other sites More sharing options...
Drahcir495 Posted October 5, 2019 Share Posted October 5, 2019 9 hours ago, JMO413 said: Bored throttle body definitely makes a noticable difference. And you can support a CC vendor! Who does this? Link to comment Share on other sites More sharing options...
JMO413 Posted October 5, 2019 Share Posted October 5, 2019 3 minutes ago, Drahcir495 said: Who does this? Meanlemons Link to comment Share on other sites More sharing options...
Drahcir495 Posted October 5, 2019 Share Posted October 5, 2019 1 minute ago, JMO413 said: Meanlemons Thank you. I don’t have any 91 and up Link to comment Share on other sites More sharing options...
JMO413 Posted October 5, 2019 Share Posted October 5, 2019 Just now, Drahcir495 said: Thank you. I don’t have any 91 and up He does renix now also. Link to comment Share on other sites More sharing options...
Drahcir495 Posted October 5, 2019 Share Posted October 5, 2019 17 minutes ago, JMO413 said: He does renix now also. I just saw that! Went through all 7 pages Link to comment Share on other sites More sharing options...
mnkyboy Posted October 5, 2019 Share Posted October 5, 2019 Link to comment Share on other sites More sharing options...
Smokeyyank Posted October 5, 2019 Share Posted October 5, 2019 16 hours ago, 89 MJ said: Could you please elaborate? How much power does it add and what did you do? Thanks 100% BS. Just having some fun. Link to comment Share on other sites More sharing options...
omega_rugal Posted October 6, 2019 Share Posted October 6, 2019 12 hours ago, mnkyboy said: how much torque and HP? Link to comment Share on other sites More sharing options...
mnkyboy Posted October 6, 2019 Share Posted October 6, 2019 1 hour ago, omega_rugal said: how much torque and HP? Not sure, I haven't got it on a dyno. Even turning 37s It is significantly faster than stock, my 4.0l 5spd XJ feels pretty weak in comparison. Link to comment Share on other sites More sharing options...
Dzimm Posted October 6, 2019 Share Posted October 6, 2019 24 minutes ago, mnkyboy said: Not sure, I haven't got it on a dyno. Even turning 37s It is significantly faster than stock, my 4.0l 5spd XJ feels pretty weak in comparison. XJs tend to feel much slower than MJs even in stock form. Id be interested to see Dyno numbers but they aren't cheap. Link to comment Share on other sites More sharing options...
thecodemonk Posted October 8, 2019 Share Posted October 8, 2019 On bang for the buck, gears definitely are the best. For just straight speed, I think adding cubic inches in the form of a stroker or a V8 probably adds the most actual get up and go (though it tends to be a lot of $$$ or time...or both) Link to comment Share on other sites More sharing options...
kryptronic Posted October 9, 2019 Share Posted October 9, 2019 4.0L with 4 hole injectors, Mean Lemons bored throttle body, Banks header, high flow cat and muffler. Plus gotta have High Output electonics. Let her breathe! Link to comment Share on other sites More sharing options...
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