Power hungry 4.0: how to give it what it wants?

D's Jeep Wrld · 2026-01-21T12:18:11-0700

With the small bit of work I've done to my engine it has netted me decent 1/8th mile times
I coulda gotten a high 9/low 10 if I didn't fall asleep and run the Daytona 500 at the light

This was my 1st time on the strip on a blown dana 44 so my times should get better once I can fully send it after I'm done doing my ford 9" and triangulated midarm

If this means anything I'm able to keep up with a tuned/built trans v8 Silverado with 4.10s,The 1st run there I was hawking up to him fast after spinning 1st 2nd and part of 3rd (went too early in the water box and didn't warm my tires up at all) and I ran an 11.45 with a near perfect reaction time
Nearing the end of the 1/8th I was a jeep away from him

D's Jeep Wrld · 2026-01-21T12:22:49-0700

speeding_infraction said:
Perfectly reasonable request. Just need a huge hemi

(I wanna keep it true) I want a pissed off AMC I6 stroker with a hogging cam and possibly a turbo,I wanna pop the hood and show yet another scat pack that they just got gapped by a 6 cylinder tractor engine

Next I6 I'd want is a Mercedes om606

speeding_infraction · 2026-01-21T12:48:18-0700

D's Jeep Wrld said:
(I wanna keep it true) I want a pissed off AMC I6 stroker with a hogging cam and possibly a turbo,I wanna pop the hood and show yet another scat pack that they just got gapped by a 6 cylinder tractor engine
Next I6 I'd want is a Mercedes om606

You and me both brother!
I've only watched this video about 5 times

Larry Mosby · 2026-01-21T13:01:57-0700

Cumsterdump said:
i want to make my tj more peppy and i know this is gonna send some of yall into a frenzy but entertain me here please.

i don’t want to regear yet as my 3.73s are great for my use case, and i want to keep the 4.0 platform. im a bit of a purist and one of the reasons the TJ is so infamous/why i love it is due to the killer engine so i would feel wrong changing that.

who has made a name for themselves making these four liters make some output. like newcomer racing

yes the platform isn’t good to build off of, but i want to know who said watch me and made it work anyways.

i understand it’s not an effective platform for making power but im willing to spend MY money on MY jeep to do it

There’s a place in Houston that builds a 4.0 that puts out over 600 hp.

If you’re a purist though I don’t know if that’s the route you want to take. Maybe your kidding yourself because a purist would be be all about OME.

A tune would give you more pep along with a larger breather tube and a good filter. The next thing would be a larger bore throttle body. You could also swap intakes to get better airflow and mixture. Headers gain a few horsepower as well. You could have your heads shaved and port and polish the passage ways to get even more gain. Changing fuel injectors could also help you out.

But if you’re really a purist then just run the highest octane fuel you can buy.

speeding_infraction · 2026-01-21T13:11:58-0700

Larry Mosby said:
There’s a place in Houston that builds a 4.0 that puts out over 600 hp.

What place is that? I feel like I've done a lot of research on high power 4.0s, don't remember any place out of Houston

D's Jeep Wrld · 2026-01-21T13:14:23-0700

Larry Mosby said:
There’s a place in Houston that builds a 4.0 that puts out over 600 hp.

Let me know of the place when you can! I'm gonna need a machinist that knows about these engines so I can have my block machined at some point ! I'll be doing the rest of the building

BlueC · 2026-01-21T13:29:52-0700

D's Jeep Wrld said:
I coulda gotten a high 9/low 10 if I didn't fall asleep

Were your txting? Maybe daydreaming about some tacos? I've had farts with quicker reactions.

9-10 is a bit optimistic, just look at that 60 mph trap (that would have to be right at 70 to split 9-10 on an 1/8), but a flat 11 is likely with a good reaction time.

D's Jeep Wrld · 2026-01-21T14:18:29-0700

BlueC said:
View attachment 667878 Were your txting? Maybe daydreaming about some tacos? I've had farts with quicker reactions. 9-10 is a bit optimistic, just look at that 60 mph trap (that would have to be right at 70 to split 9-10 on an 1/8), but a flat 11 is likely with a good reaction time.

Shiet....I wasn't daydreaming I was full on making them in that time

Jokew aside since my friend wanted to see whatsup,My buddy got in the passenger side,At the the time he was holding the e brake when staging. We were both hyped so the pressure was on lol and when it was time to go we both stared at eachother in a confused manner till he said "GO FOO GOO!!!" Me: "Go

?! ....Oh shit. Dumps clutch and goes* haha

BlueC · 2026-01-21T14:21:49-0700

D's Jeep Wrld said:
At the the time he was holding the e brake when staging

Never let another man touch your handle.

hear · 2026-01-21T21:35:06-0700

BlueC said:
Never let another man touch your handle.

Hey, it's 2026, you can't say things like that.

You can't assume it's a man.

D's Jeep Wrld · 2026-01-21T21:53:24-0700

BlueC said:
Never let another man touch your handle.

Hmmmm....The real question is, Which one ?

Tha 6 way wobbly wobbler or the weird upNdowny clicky click one ?

(I meant to send this hours ago but I guess my reply never fully sent....)

TJ Jim · 2026-01-22T04:11:39-0700

hear said:
Hey, it's 2026, you can't say things like that.

You can't assume it's a man.

From the name of the op, (the one that started this thread) you really gotta wonder its identity?
Since it hasn’t been back we must’ve hurt its feelings

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Power hungry 4.0: how to give it what it wants?

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