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Home » Public Forums » GMCnet » Engine specs help non GMC (Help me decide if this engine will do the job)
Engine specs help non GMC [message #120753] Mon, 04 April 2011 00:35 Go to previous message
idrob is currently offline  idrob   United States
Messages: 645
Registered: January 2005
Location: Central Idaho
Karma:
Senior Member
I need the help of this great group. Although I no longer own my GMC, I try to participate on the topics that I have some knowledge. I hope some of you can help me with this question.

I have a 2001 Jeep Grand Cherokee V8 which I use to tow a 20' Argosy (painted Airstream) trailer now. I simply find it works better for me than the motorhome did.

The Jeep I have has a great modern V8 engine, it is the 4.7L with 235hp and 295 lb-ft torque. It tows very well and is economical. It has all the power I need to tow the trailer I use. I love the engine.

I am thinking of a new 2011 Jeep but that 4.7 V8 engine is no longer available which is a shame. The new Pentastar 3.6L V6 in the 2011 Jeeps has a rating of 290 hp and 260 lb-ft of torque. It is a very modern engine design. So, it has more HP and a little less torque than the V8 I now have. The specs are at a higher RPM but I assume the transmission and various gear rations allow the higher RPM to be practical.

There is a hemi V8 available for the Jeep, but there are several reasons I don't really want it.

Can anyone give me a feeling based on the HP and Torque specs of the older 4.7L V8 vs. the newer 3.6L V6 as to what it might be like when towing? This will be my "last" tow vehicle I am sure (age) and I want to be happy with it.

I sure appreciate your thoughts and opinions on this matter.


Rob Allen
former owner of '76 x-PB
 
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