3.6 engine on JK 07-11?
12-05-2011, 04:23 PM
#21
JK Super Freak
Originally Posted by XBlacky08X
The 3.8 is a good motor.
12-05-2011, 04:38 PM
#22
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The 3.8 is a good motor. Except for the dozens of threads about them blowing up, leaking, and eating bearings for breakfast. It's also extremely underpowered for ANY post-1995 vehicle.
The 4.0 I-6 was very hit or miss. Some would seemingly go 400,000 miles, and others were garbage. It was a real roll of the dice. Mine leaked like a seive, drank gas like it was going out of style, and made zero power. It only had 100K on it, was a two-owner Jeep, and was babied meticulously. It was just a trash engine. My buddy's '02 with the 4.0 has spent more time in the shop in the past two years than it's spent on the road. The 4.0 was great for it's time (1989) but in recent years it's "legendary status" has been extremely over-rated. I don't miss it at all and personally I think they are best suited as boat anchors.
The 3.6 is too young to make a judgement call on but I predict issues with them for the first few years. I would also like to see it tuned for torque over horsepower which would be better for a 4x4. In it's current configuration it's best suited for cars like the Charger.
The 4.7/5.7 V8s are bulletproof. If you change the oil frequently to avoid the notorious sludging issues, they'll run hard for way past 150,000 miles.
As far as swapping a 3.6 into a JK.. this in theory should be WAY cheaper than swapping in a Hemi because the 3.6 is native to the vehicle. Therefore, you won't need to change EVERYTHING like you would with a Hemi swap.
The 4.0 I-6 was very hit or miss. Some would seemingly go 400,000 miles, and others were garbage. It was a real roll of the dice. Mine leaked like a seive, drank gas like it was going out of style, and made zero power. It only had 100K on it, was a two-owner Jeep, and was babied meticulously. It was just a trash engine. My buddy's '02 with the 4.0 has spent more time in the shop in the past two years than it's spent on the road. The 4.0 was great for it's time (1989) but in recent years it's "legendary status" has been extremely over-rated. I don't miss it at all and personally I think they are best suited as boat anchors.
The 3.6 is too young to make a judgement call on but I predict issues with them for the first few years. I would also like to see it tuned for torque over horsepower which would be better for a 4x4. In it's current configuration it's best suited for cars like the Charger.
The 4.7/5.7 V8s are bulletproof. If you change the oil frequently to avoid the notorious sludging issues, they'll run hard for way past 150,000 miles.
As far as swapping a 3.6 into a JK.. this in theory should be WAY cheaper than swapping in a Hemi because the 3.6 is native to the vehicle. Therefore, you won't need to change EVERYTHING like you would with a Hemi swap.
12-05-2011, 04:39 PM
#23
JK Super Freak
Comparing inline sixes to V6s will always highlight the different characteristics inherent in the different mechanical designs. The inline 6 configuration is the most naturally balanced of all vehicle motor types commonly used today so they will always seem smoother and quieter, particularly at lower RPMS (obviously comparing pushrod motors to pushrod motors or OHC to OHC; a small capacity balanced quad cam V6 will run much smoother than an old narrow-bore large-capacity pushrod I6). The other thing to consider is that the 60-degree V6 design used by Chrysler tends to develop it's torque higher up on the RPM range than the I6 (particularly with the old 3.8L), so the combination of smoothness and a more steady delivery of torque from low RPMs tends to make inline sixes a more user-friendly design.
The main reason why the I6 design has fallen out of favour in recent years and been replaced with the 60-degree V6 design is the purely down to one thing; front wheel drive. Front wheel drive is by far the most popular platform these days for most vehicles, so the V6s fitted to RWD vehicles like the Wrangler were designed to mounted transversly in the engine bays of FWD vehicles (hence the 60-degree design as opposed to the 90-degree design found some older V6s from the 70's) as a large inline six and it's transmission just won't fit transversely in the narrow confines of a modern vehicle's engine bay. As the share of RWD vehicles being produced dwindles compared to the total vehicle production it no longer makes economic sense for a manufacturer to produce both a V6 and an I6 of similar capacity for their different vehicles (just look at the number of motors the new Pentastar has replaced in the Chrysler line-up).
The main reason why the I6 design has fallen out of favour in recent years and been replaced with the 60-degree V6 design is the purely down to one thing; front wheel drive. Front wheel drive is by far the most popular platform these days for most vehicles, so the V6s fitted to RWD vehicles like the Wrangler were designed to mounted transversly in the engine bays of FWD vehicles (hence the 60-degree design as opposed to the 90-degree design found some older V6s from the 70's) as a large inline six and it's transmission just won't fit transversely in the narrow confines of a modern vehicle's engine bay. As the share of RWD vehicles being produced dwindles compared to the total vehicle production it no longer makes economic sense for a manufacturer to produce both a V6 and an I6 of similar capacity for their different vehicles (just look at the number of motors the new Pentastar has replaced in the Chrysler line-up).
Last edited by JKlad; 12-05-2011 at 04:41 PM.
12-05-2011, 05:08 PM
#24
JK Jedi Master
Hey shit for brains...I too have had both...anyone who wants to say the 4.0 was all that and without equal is not remembering driving that thing on the hwy..it sucked...just like the JK. That being said I have never been left behind by a TJ and thought only if I had the 4.0 I'da made it! You just need something to bitch about...you're illiterate and it is your time of the month!
Who's the bitch? Your the one who started in with the name calling! I never said it was without equal, I just to me it felt as though it had more pull. This forum is full of peoples opinions, I dont know why mine got you so hot and bothered? Sorry to hear it's your time if the month. Oh and by the way I think you need to douche too, you fucking homo!
become........
and drive around in .........
while your at it, fly this at you two's upcoming wedding....
while your at it, bring this guy with you.
12-05-2011, 05:27 PM
#25
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Originally Posted by mkjeep
Oh good lord, why don't both of you go listen to some.....
<img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=246122"/>
become........<img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=246123"/>
and drive around in .........
<img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=246125"/>
while your at it, fly this at you two's upcoming wedding....
<img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=246129"/>
while your at it, bring this guy with you.
<img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=246130"/>
12-05-2011, 06:07 PM
#26
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Originally Posted by TJM12
Yeah it's called go get a 2012!
Last edited by f2fast4u; 12-05-2011 at 06:10 PM.
12-05-2011, 06:11 PM
#27
JK Jedi Master
12-05-2011, 06:21 PM
#28
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Comparing inline sixes to V6s will always highlight the different characteristics inherent in the different mechanical designs. The inline 6 configuration is the most naturally balanced of all vehicle motor types commonly used today so they will always seem smoother and quieter, particularly at lower RPMS (obviously comparing pushrod motors to pushrod motors or OHC to OHC; a small capacity balanced quad cam V6 will run much smoother than an old narrow-bore large-capacity pushrod I6). The other thing to consider is that the 60-degree V6 design used by Chrysler tends to develop it's torque higher up on the RPM range than the I6 (particularly with the old 3.8L), so the combination of smoothness and a more steady delivery of torque from low RPMs tends to make inline sixes a more user-friendly design.
The main reason why the I6 design has fallen out of favour in recent years and been replaced with the 60-degree V6 design is the purely down to one thing; front wheel drive. Front wheel drive is by far the most popular platform these days for most vehicles, so the V6s fitted to RWD vehicles like the Wrangler were designed to mounted transversly in the engine bays of FWD vehicles (hence the 60-degree design as opposed to the 90-degree design found some older V6s from the 70's) as a large inline six and it's transmission just won't fit transversely in the narrow confines of a modern vehicle's engine bay. As the share of RWD vehicles being produced dwindles compared to the total vehicle production it no longer makes economic sense for a manufacturer to produce both a V6 and an I6 of similar capacity for their different vehicles (just look at the number of motors the new Pentastar has replaced in the Chrysler line-up).
The main reason why the I6 design has fallen out of favour in recent years and been replaced with the 60-degree V6 design is the purely down to one thing; front wheel drive. Front wheel drive is by far the most popular platform these days for most vehicles, so the V6s fitted to RWD vehicles like the Wrangler were designed to mounted transversly in the engine bays of FWD vehicles (hence the 60-degree design as opposed to the 90-degree design found some older V6s from the 70's) as a large inline six and it's transmission just won't fit transversely in the narrow confines of a modern vehicle's engine bay. As the share of RWD vehicles being produced dwindles compared to the total vehicle production it no longer makes economic sense for a manufacturer to produce both a V6 and an I6 of similar capacity for their different vehicles (just look at the number of motors the new Pentastar has replaced in the Chrysler line-up).
12-05-2011, 08:50 PM
#30
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Who's the bitch? Your the one who started in with the name calling! I never said it was without equal, I just to me it felt as though it had more pull. This forum is full of peoples opinions, I dont know why mine got you so hot and bothered? Sorry to hear it's your time if the month. Oh and by the way I think you need to douche too, you fucking homo!