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

thanks for the recommendation but like i mentioned in my post that’s not what im looking for. i am long past bang for buck i want to spend to build a motor

Trying to over-power an undergeared rig is leaving performance on the table. What you want does not have a single point solution.
 
Noone mentions wuhan war whistle? Doesn't Jezza sell a kit?
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  • No one is the correct spelling and phrase that means nobody.
  • No-one is a hyphenated form of no one, which is accepted by very few style guides.
  • Noone is an incorrect word and a common error.
 
🤓
  • No one is the correct spelling and phrase that means nobody.
  • No-one is a hyphenated form of no one, which is accepted by very few style guides.
  • Noone is an incorrect word and a common error.

Yeah well "ain't" wasn't in the dictionary when I was young either!

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Trying to over-power an undergeared rig is leaving performance on the table. What you want does not have a single point solution.

yes 100% and i’m not saying im not open to it but i am quite happy with my 3.73s and unless i change my transmission i dont really see a need to as i like where my rpm’s sit currently
 
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Noone mentions wuhan war whistle? Doesn't Jezza sell a kit?
No.
I Went to his shop and longstory short The company RSI moved out from his shop,They were being shady and taking money and taking way too long to send out kits etc.

RSI as a whole wasn't his company,He only had to do something with the design if I remember correctly and he got a cut from the kits.But don't exactly quote me on that !!!
 
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yes 100% and i’m not saying im not open to it but i am quite happy with my 3.73s and unless i change my transmission i dont really see a need to as i like where my rpm’s sit currently

Why do you "like" where your RPMs currently "sit" with 3.73s? You're inquiring how to make more power, which tells me you're not actually happy with your current setup, but you seem to like an arbitrary RPM number. If you want to make more power, the easiest way to do that is to climb higher into the power curve by making more RPMs. Try driving with your trans one gear lower and see if that feels better.
 
I have the answer for you, but I'm going to have to give it to you in the form of a jumble, because we can't just have everybody jumping on this bandwagon. It will make prices skyrocket due to the sudden demand. It's three words.

LIRAFTOFREMIL
 
There are only 4 ways to get more power out of a 4.0L:

1. Regear
2. More aggressive camshaft/internal engine work like port/polish the cylinder head
3. Build it into a stroker engine
4. Forced induction (turbo/supercharger)

Those are the only options that will make any measurable difference. You can add all the cold air intakes, 12 hole injectors, and throttle body spacers you want and it won't do anything.
 
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There are only 4 ways to get more power out of a 4.0L:

1. Regear
2. More aggressive camshaft/internal engine work like port/polish the cylinder head
3. Build it into a stroker engine
4. Forced induction (turbo/supercharger)

Those are the only options that will make any measurable difference. You can add all the cold air intakes, 12 hole injectors, and throttle body spacers you want and it won't do anything.

Nah. You left out tiny tires🤣
 
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