The perfect Jeep engine

[C.J. Roberts]

Maybe...Maybe not. Lithium has a LONG way to go before its viable for that type of use and Lead Acid is WAY to heavy. You're right though...Electric would be ideal.

Shouldn't Mr. Fusion be along about now?

 

[Boinked]

Im still waiting for my flying YJ

 

[jjvw]

After a certain point it no longer exists as a jeep. I think that took it past that point.

Agreed. There are pieces of a Jeep still there.

 

[Andy5150]

383 Chevy stroker.... fuel injected. Great torque, horsepower, cheap to maintain.

 

[ZEN357]

6.4 Liter Hemi...Definitely!

 

[Fouledplugs]

Ahhh the dream built factory 4.0. Obviously direct injection, redesigned combustion chambers, more stroke, and more compression with the direct injection.

Doing so you could really open the option to a factory turbo 4.0

Weight is a huge drawback to the antiquated iron block and head.

Having an all aluminum block and head would be great too. Shave weight and gain a substantial amount of heat dissipation.

A better transmission would accommodate this beautiful redesigned modernized 4.0 such as a GM 4L80E or a NV4500. Something that works. Look at the GM LS equipped trucks, powertain thats simple, lightweight, yet very effective in the power numbers and the gas milage.

 

[CybrSlydr]

Ahhh the dream built factory 4.0. Obviously direct injection, redesigned combustion chambers, more stroke, and more compression with the direct injection.

Doing so you could really open the option to a factory turbo 4.0

Weight is a huge drawback to the antiquated iron block and head.

Having an all aluminum block and head would be great too. Shave weight and gain a substantial amount of heat dissipation.
View attachment 53596 View attachment 53597

A better transmission would accommodate this beautiful redesigned modernized 4.0 such as a GM 4L80E or a NV4500. Something that works. Look at the GM LS equipped trucks, powertain thats simple, lightweight, yet very effective in the power numbers and the gas milage.

D'oh - wrong engine. I meant the S65 from BMW.

The S65 shares the same 92 mm (3.6 in) bore and 75.2 mm (3.0 in) stroke cylinder dimensions with the S85 V10. Other common features include individual throttle bodies,[3]ionic current knock sensing,[4] variable valve timing ("double-VANOS") and the 12.0:1 compression ratio.[5] The length of the S65 is 734 mm (28.9 in).[citation needed] The redline is 8400 rpm.

To reduce weight, a wet-sump lubrication system with two electrically operated scavenging pumps and a main oil pump replaces the three-pump wet-sump system used on the V10.[6][7][8]

The alternator disconnects from the engine during acceleration to maximise power, only charging the battery during braking and decelerating whenever possible, in a system BMW calls Brake Energy Regeneration.[6]

The engine control unit (ECU/DME) is a Siemens MSS60,[9][10] which is based on the Siemens MSS65 ECU used in the S85 engine[11] and is capable of more than 200 million calculations per second.[citation needed]

The S65 weighs 202 kg (445 lb), which is 15 kg (33 lb) less than its S54 straight-6 engine predecessor.[12]

The firing order for the S65 engine is 1-5-4-8-7-2-6-3, which is different from the typical BMW V8 firing order of 1-5-4-8-6-3-7-2.[13]

 

[Leinhit]

I like it too, but $9000....

Never driven one, or seen it in person, but I think the R2.8L would be great. The kit is designed to work with the stock trans and axles (AX15 and 44). So the cost of upgrading the driveline is gone (unless you have a 2.5 setup). Not that my rig is in poor shape, but when it blows this would be the replacement I would look at. Not for fuel economy, as that would take years to break even on cost and fuel savings, but the power and torque would be great to have:coleman:

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[Leinhit]

The perfect motor for our Wranglers will be electric. There will be a day soon when we will be able to swap the internal combustion engines in older vehicles for an electric motor and battery packs with a practical range and solar recharging.

It will be clean and quiet. Huge amounts of torque. No transmission. Likely no need for an under drive transfer case. The weight distribution will be tunable.

And no vroom vroom....

In 25 years I shall have the last illegal gas motor in my garage and shaking my fist at these quiet Sunday drivers..

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[Leinhit]

In Michigan snow covered solar panels some seen to work..

And as I always point out, what happens when u turn the heat or ac on these electric cars? I can't imagine it last long?

And u forgot the Chevy volt..

The problem with electric. You can bring extra gas. Not so much with electric. I like the ability to have 20+ gallons of extra fuel.

While currently there is only one electric vehicle that has the ability to use the car like you normally would. (Telsa). Every other can manufacture has gone to hybrid. Or has such a bad range you can not use it to go where you want.

Solar panels on your house is great during the day. But don't work at night. So we sell the power back to the electric company. Inturn they turn off certain power plants. (You can not make more power than you use). Then sell you power that is generated when you need it at a higher price.Only one company that i know of has a good power storage system. (Tesla) but why would solar companies want you to store that power for later use when they can sell you grid power.

Where is the big push to make the world better. It doesn't exist!!!! The world just wants to sell you something that makes you think you are changing the world. The idea of being environmentally friendly is just big business makeing money in a different way.

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[TJ Puravida]

I love my little 4 cylinder 2.5 l. It’s incredibly reliable and frugal but of course too weak if you run large tires (like I do) and still want to maintain highway speed up steep inclines. On the dirt roads here in Costa Rica it’s more than sufficient and saves a lot of gas in the long run.

 

[doug schlosser]

Is the 4.0 the perfect engine for a Jeep , or if you could tell Jeep what to put in one, what would it be?

I love the 4.0 all around, but wonder.....what would I want if the 4.0 didn’t exist?

the 4.0 that's in with a banks turbo.works great really woke mine up AND didn't hurt fuel mileage

 

[Shane Mckinley]

the 4.0 that's in with a banks turbo.works great really woke mine up AND didn't hurt fuel mileage

How much was the Banks and did you do the install?

I’m pushing 255k on mine with no signs of slowing thankfully

Never can hurt to look at options. I personally hope to drive this thing another 25 years [emoji482]


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2005 RHD TJ Sport
2010 BMW 528xi

 

[sgtjdgelinas]

Maybe...Maybe not. Lithium has a LONG way to go before its viable for that type of use and Lead Acid is WAY to heavy. You're right though...Electric would be ideal.

There’s a new type of battery that may change this, it’s called lithium iron oxide and it’s leaps and bounds beyond what we have now. No heat, no maintenance, no watering and doesn’t explode or burn like lithium ion does. Check out BYD, they run full city bus and taxi systems.
I work for a company that sells BYD forklifts and the customers that hear about the run vs charge time are always shocked.

 

[KCsTJ]

Ahhh the dream built factory 4.0. Obviously direct injection, redesigned combustion chambers, more stroke, and more compression with the direct injection.

Doing so you could really open the option to a factory turbo 4.0

Weight is a huge drawback to the antiquated iron block and head.

Having an all aluminum block and head would be great too. Shave weight and gain a substantial amount of heat dissipation.
View attachment 53596 View attachment 53597

A better transmission would accommodate this beautiful redesigned modernized 4.0 such as a GM 4L80E or a NV4500. Something that works. Look at the GM LS equipped trucks, powertain thats simple, lightweight, yet very effective in the power numbers and the gas milage.

That's a beautiful aluminum block. What is it from or engineered for, i would like to research it.a bit.more. ty.

 

[Fouledplugs]

That's a beautiful aluminum block. What is it from or engineered for, i would like to research it.a bit.more. ty.

The photos are just to reference the idea of an all aluminum straight 6 block. The engine pictured is a 2JZ.

 

[Shane Mckinley]

The photos are just to reference the idea of an all aluminum straight 6 block. The engine pictured is a 2JZ.

Yea that’s a beast


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2005 RHD TJ Sport
2010 BMW 528xi

 

[Robert Bauer]

I just posted about my possible engine swap and then found this post. How about the 4.7?


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[JDS123]

I just posted about my possible engine swap and then found this post. How about the 4.7?


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The 4.7 (I'm assuming 4.7 stroker) is an interesting choice for an engine swap. I've heard mixed reviews in terms of long term reliability. In my personal opinion, if you're looking for more power out of a 4.0, a supercharger from someone like boosted technologies is a smarter choice than a stroker kit.

EDIT: looked at your thread and now realize you don't mean 4.7L in terms of a stroker kit for the 4.0L. Disregard this post.

 

[billiebob]

Is the 4.0 the perfect engine for a Jeep , or if you could tell Jeep what to put in one, what would it be?

I love the 4.0 all around, but wonder.....what would I want if the 4.0 didn’t exist?

Well before the 4.0 was the 4.2...... But my favorite was the 5.9, way more durable than the pentroof 5.7..... Note the 5.7 is NOT a hemi..... After that, I'd pick the original 5.8 hemi.