Novak Conversions Jeep Wrangler TJ engine mounts

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

After which said fucktard receives these replies, who wants to bet that he'll complain about not getting any help?

There are many things wrong with this thread starting with the 4.0 being power hungry. It isn't, it doesn't know and certainly doesn't care. What is power hungry is the driver and he is blatantly overlooking the basics to improve performance and drivability for reasons as of yet to be determined. The 4.0 is a terrible engine that is heavy, only semi reliable, low powered, and really not worthy of spending too much time or effort trying to make it something it isn't.
 
The 4.0 is a terrible engine that is heavy, only semi reliable, low powered, and really not worthy of spending too much time or effort trying to make it something it isn't.

^^ This ^^ , An oxen can't be trained enough to win the Kentucky Derby . The 4.0 is already a giant leap forward from it's Rambler beginnings.
It is a throw back engine , that is relatively simple and easy to work on , compared to modern I -6 's like a Chevy Atlas or Toyota 2JZ .
 
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.

Or nitrous šŸ˜
Just kidding.....Not a good long term solution tho!
Screenshot_20260120_102806_Gallery.jpg
 
^^ This ^^ , An oxen can't be trained enough to win the Kentucky Derby . The 4.0 is already a giant leap forward from it's Rambler beginnings.
It is a throw back engine , that is relatively simple and easy to work on , compared to modern I -6 's like a Chevy Atlas or Toyota 2JZ .

I think the key is the end of his statement, "trying to make it something it isn't".
 
I think the key is the end of his statement, "trying to make it something it isn't".

Something frequently missed by those chasing horsepower is that the gearing, suspension, steering and brakes all need to be addressed together in order to support and to really enjoy the extra power. Mine is still underpowered, despite the supercharger. But it is incredibly fun to drive hard and toss around because the entire platform was built to behave very well before the supercharger ever went on.
 
Something frequently missed by those chasing horsepower is that the gearing, suspension, steering and brakes all need to be addressed together in order to support and to really enjoy the extra power. Mine is still underpowered, despite the supercharger. But it is incredibly fun to drive hard and toss around because the entire platform is built to behave very well.

Exactly. This is what happens when you only add power:
Screenshot (17).png
 
Something frequently missed by those chasing horsepower is that the gearing, suspension, steering and brakes all need to be addressed together in order to support and to really enjoy the extra power. Mine is still underpowered, despite the supercharger. But it is incredibly fun to drive hard and toss around because the entire platform was built to behave very well before the supercharger went on.
Another bit of info hoopty is missing is even with a nice power adder like a supercharger, the need for proper gearing is still there. As I've stated previous, when I swapped from the stock size tires on the supercharged 04 Unlimited to the JK 32" take-offs, I despised the loss in driving fun and regeared from 3.73 to 4.88 just to get that back.

And we both know we're just adding some info so we don't get lumped into the "running our mouth with no experience" group that is so prevalent nowadays. Just because we don't often brag about roasting the tires, doesn't mean we didn't enjoy doing it.
 
Novak Conversions Jeep Wrangler TJ engine mounts