the new generation of jeeps
#21
11-28-2006, 01:56 PM
RE: the new generation of jeeps
Hello guys,
My name is Miguel and I too am a Marketing Representative with the Jeep Information Center. I would like to extend my thanks to all who have provided valuable insights regarding the development of Jeep Wrangler engines over the years. In light of your comments pertaining to the torque specification differences between the now phased out 4.0L I-6 engine and the all-new 3.8L V6, I have outlined both the torque and horsepower specifications for each engine below. It appears that the torque peaks at 800 RPM higher in the new engine than it did in the old engine. Although the torque increase is not a tremendous one, one must consider that apart from the increase in torque, there has also been a 12 hp increase in engine power albeit with a smaller displacement. I did read a couple of posts in which you guys mentioned that although the maximum torque output was achieved at a higher RPM level for the 4.0L, that the difference along the way was not substantial as it was essentially within the vicinity of that apex in the first couple thousand. In response to that, I would like to know, have you guys had a chance to give the new engine a test run? If so, what did you think? In addition, much like the 4.0L I-6, how can we confirm whether or not the majority of the torque in the new engine will be achieved in the first couple thousand or so RPM with only a partial increment the rest of the way? To answer this question for us, what I will do is get in contact with my Jeep product specialist and attempt to acquire these figures for you guys. In the meantime, if you guys happen to have any comments/questions, feel free to post. I would be more than happy to be of assistance.
2006 Jeep Wrangler
4.0L I-6 engine
Horsepower (SAE net @ rpm) 190 @ 4,600
Torque (lb-ft @ rpm) 235 @ 3,200
2007 Jeep Wrangler / Wrangler Unlimited 4-door
Horsepower (SAE net @ rpm) 202 @ 5,000
Torque (lb-ft @ rpm) 237 @ 4,000
Cheers,
Miguel M.
My name is Miguel and I too am a Marketing Representative with the Jeep Information Center. I would like to extend my thanks to all who have provided valuable insights regarding the development of Jeep Wrangler engines over the years. In light of your comments pertaining to the torque specification differences between the now phased out 4.0L I-6 engine and the all-new 3.8L V6, I have outlined both the torque and horsepower specifications for each engine below. It appears that the torque peaks at 800 RPM higher in the new engine than it did in the old engine. Although the torque increase is not a tremendous one, one must consider that apart from the increase in torque, there has also been a 12 hp increase in engine power albeit with a smaller displacement. I did read a couple of posts in which you guys mentioned that although the maximum torque output was achieved at a higher RPM level for the 4.0L, that the difference along the way was not substantial as it was essentially within the vicinity of that apex in the first couple thousand. In response to that, I would like to know, have you guys had a chance to give the new engine a test run? If so, what did you think? In addition, much like the 4.0L I-6, how can we confirm whether or not the majority of the torque in the new engine will be achieved in the first couple thousand or so RPM with only a partial increment the rest of the way? To answer this question for us, what I will do is get in contact with my Jeep product specialist and attempt to acquire these figures for you guys. In the meantime, if you guys happen to have any comments/questions, feel free to post. I would be more than happy to be of assistance.
2006 Jeep Wrangler
4.0L I-6 engine
Horsepower (SAE net @ rpm) 190 @ 4,600
Torque (lb-ft @ rpm) 235 @ 3,200
2007 Jeep Wrangler / Wrangler Unlimited 4-door
Horsepower (SAE net @ rpm) 202 @ 5,000
Torque (lb-ft @ rpm) 237 @ 4,000
Cheers,
Miguel M.
#22
11-28-2006, 08:02 PM
The Only Elite DF Member