3.7 vs. 4.0L

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3.7 vs. 4.0L - 11/8/2006 4:42:53 PM    PlatinumRoad Posts: 61 Joined: 8/14/2006 Status: offline I'm curious to see how much of a difference people will actually see. I had the 3.7 in an 03' jeep liberty and eyeballing the two, there doesnt seem to be a huge size difference. That little 3.7 was pretty torquey and really held its own while passing and really held its own off road. Yes, i know...this is an 07', its a dodge....but i really think that the 3.7 should be quite sufficent in its own. Not to mention, looking at a sticker of a loaded SLT checking in at a fairly hefty $28,000+, is that extra motor going to be worth it? You still get a lot of the comforts/options on the SLT as the R/T (although the R/T does look slightly nicer) The Nitro still seems pretty freakin sweet Just some thoughts _____________________________ 06' SRT10 QC Inferno Red Crystal Pearl 07' Caliber Rental-Car White RIP-05' Dakota QC SLT Mineral Gray Metallic Post #: 1

RE: 3.7 vs. 4.0L - 11/13/2006 4:06:21 PM    SRTNITRO   Posts: 1 Joined: 11/13/2006 Status: offline Wait for the R/T, much better engine than the outdated 3.7L! The new 4.0L is a stroked 3.5L engine which is proven. It has way more usable power too. 3.7L 210@5200rpm & 235tq@4000rpm Off idle Torque 185tq@1200rpm 4.0L 260hp@6000rpm & 265tq@4200rpm Off idle Torque 225tq@1200rpm Now compare the 3.7L engine power at the same rpm as the 4.0L 3.7L 175hp@6000rpm & 230tq@4200rpm Off idle Torque 185tq@1200rpm You can see by the time you hit 1200rpm the 4.0L is making 50tq more to push this Nitro, then by 6000rpm it's a good 85hp ahead for passing let alone keeping a good amount of power more threw out the entire power band. I'm waiting for the R/T, I've already priced it with the my Company discount. $24k which is a steal. Maybe not as good as a DCX but still nice. < Message edited by SRTNITRO -- 11/13/2006 4:09:37 PM > (in reply to PlatinumRoad) Post #: 2

RE: 3.7 vs. 4.0L - 11/20/2006 9:43:03 PM    KJGUY   Posts: 4 Joined: 11/20/2006 Status: offline I couldnt agree more... Thats the reason we are waiting for the R/Ts... Besides it looks so much better with the 20 inch wheels.. (in reply to SRTNITRO) Post #: 3

RE: 3.7 vs. 4.0L - 11/20/2006 11:19:32 PM    Flying Fossil   Posts: 10 Joined: 5/29/2005 Status: offline I currently have a Dakota with a 4.7 V-8. My previous truck was a Dakota with the 3.7 V-6. Neither of these engine will ever on there very best day on premium fuel in nuetral ever turn anywhere near 4500 RPM. 6000 is a wish of someones. Good workhorse engines, reliable, but very underpowered by todays standard. My wifes 3.5 litre Altima makes way more power than my 4.7 V-8 Chrysler needs desperately as does GM and Ford to kick it up a notch on the power plants they offer. Love the Nitro but will wait until the hit the ground and get some reviews before I part with my money. My two cents. (in reply to KJGUY) Post #: 4

RE: 3.7 vs. 4.0L - 12/5/2006 5:21:44 PM    97 3.5 Intrepid   Posts: 1397 Joined: 9/30/2005 Status: offline Also remember that the 4.0L has a 5-speed auto instead of a 4-speed. The acceleration will not even be close between the two. _____________________________ College Graduate B.S. in Marketing (in reply to Flying Fossil) Post #: 5

RE: 3.7 vs. 4.0L - 1/7/2007 8:38:11 PM    MAGIC84 Posts: 197 Joined: 12/16/2006 Status: online Is this 4.0L  a remake of the 4.0L straight 6 of the 98-2004 era used on Cherokees/Grand Cherokees or is the new version a V6?  I really liked the 4.0 in my 98 Cherokee ran pretty smooth, easy to replace common use items, (Spark Plugs, Wires, Rotor, Cap etc...)  BTW   I think I got lost on the way to the Durango Forum,   2003 Durango SLT  4X4  < Message edited by MAGIC84 -- 1/7/2007 8:39:35 PM > (in reply to 97 3.5 Intrepid) Post #: 6

RE: 3.7 vs. 4.0L - 1/9/2007 11:29:42 AM    dcxguy   Posts: 41 Joined: 12/5/2006 Status: offline The 3.7L engine on the Nitro is more sluggish compared to the Liberty.  I have both cars.  The Liberty is more peppier and easier to throw around, but noisier.  The Nitro is quiet, a little softer on the suspension (probably due to weight and size), and accelaration is poor. The 4.0L is really a bored-out version of Chrysler's SOHC 3.5L V-6.  This is the same 4.0L that's being put on the '07 Pacificas. (in reply to MAGIC84) Post #: 7

RE: 3.7 vs. 4.0L - 1/10/2007 3:29:26 PM    thefamilyguy209   Posts: 102 Joined: 2/1/2006 Status: offline Ok first off I have to reply to flyin fossil... comparing the power output from a dodge truck and nissan shitbox is dumb as can be. That being said The comparison between the 3.7 and 4.0 should be looked at not only in power but build quaility. sure the 4.0 is powerful but will it last is the good question. the 3.7 is built with a bedplate and specs that rival a race engine. only time will tell if the 4.0 will last as long in the nitro as a 3.7 would. (in reply to dcxguy) Post #: 8

RE: 3.7 vs. 4.0L - 1/25/2007 12:36:37 AM    Thequisnos   Posts: 17 Joined: 1/23/2007 Status: offline Guys....I'd wait until the '08 Nitros come out..People at the factory are hearing rumors of a hemi being offered and also 2 inches being added to the engine bay. (in reply to thefamilyguy209) Post #: 9

RE: 3.7 vs. 4.0L - 2/11/2007 12:53:07 PM    Monstrddg   Posts: 16 Joined: 11/16/2006 Status: offline someone say hemi Nitro? http://www.edmunds.com/insideline/do/News/articleId=117421 < Message edited by Monstrddg -- 2/11/2007 12:55:32 PM > (in reply to Thequisnos) Post #: 10

RE: 3.7 vs. 4.0L - 2/11/2007 9:16:34 PM    wildbill Posts: 376 Joined: 3/8/2005 Status: offline I think that would great but I think it was just a concept at SEMA and isn't going to be put into production - although it would be and amazing addition to an already sweet SUV.   Has anyone else heard differently?  I'm all for it if it happens and would love to try one out.  (in reply to Monstrddg) Post #: 11

RE: 3.7 vs. 4.0L - 2/12/2007 9:15:19 AM    sneaky   Posts: 315 Joined: 5/5/2005 Status: offline quote: ORIGINAL: Monstrddg someone say hemi Nitro? http://www.edmunds.com/insideline/do/News/articleId=117421 Oh God...I swear I just started drooling   I think I know what my next vehicle will be _____________________________ 2005 Mineral Grey Ram QC SLT 4.7L V8 20% Tint All Around ---------------------------------------------- KINDA__PSYCHO_ (in reply to Monstrddg) Post #: 12

RE: 3.7 vs. 4.0L - 2/14/2007 9:39:07 PM    wildbill Posts: 376 Joined: 3/8/2005 Status: offline here's another article about it: http://www.jalopnik.com/cars/sema/exclusive-2006-sema-preview-yeah-this-dodge-nitros-got-a-hemi-210783.php but that's about all I've seen.  I should have asked about it when I was at the autoshow, but they probably wouldn't know anything about it.  The only specs I've found are: "The modified 5.7-liter V8 [HEMI] will be paired with a Tremec five-speed, Brembo brakes and 22-inch Alcoa wheels."  Awesome (in reply to sneaky) Post #: 13

RE: 3.7 vs. 4.0L - 2/25/2007 5:27:10 AM    TexasTodd Posts: 16 Joined: 2/25/2007 Status: offline I don't know about your 4.7, probably an auto no doubt. My 01 4.7 Dak, with HO cams, ($112 shipped), manual tranny, yadda, yadda etc., is one torquey, running engine, even after 119,000 miles.  _____________________________ 01 SLT Quad Cab, LSD, trailer towing, tire and handling 4.7, manual Homebrew CAI w/ K&N, ported 68mm TB HO cams and intake, Bosch plugs, MObil 1, NO Stink'n belt clutch/fan NO third cat Superchips tuner 227 RWHP; 300 RWTQ Rear Wheel! (in reply to wildbill) Post #: 14

RE: 3.7 vs. 4.0L - 2/27/2007 5:43:51 PM    97 3.5 Intrepid   Posts: 1397 Joined: 9/30/2005 Status: offline quote: ORIGINAL: thefamilyguy209 Ok first off I have to reply to flyin fossil... comparing the power output from a dodge truck and nissan shitbox is dumb as can be. That being said The comparison between the 3.7 and 4.0 should be looked at not only in power but build quaility. sure the 4.0 is powerful but will it last is the good question. the 3.7 is built with a bedplate and specs that rival a race engine. only time will tell if the 4.0 will last as long in the nitro as a 3.7 would. If the 4.0L is anything like the 3.5L SOHC which it is based off of.  I can tell you from my own experience that it will last very well.  This is a very reliable engine series (except the 2.7L DOHC but that has different heads and is too small to justify creating anyways). The 4.0L is anything but slow in the Nitro, Car and Driver got 6.9 secs on the 0-60 run.    http://www.caranddriver.com/shortroadtests/12165/2007-dodge-nitro-rt.html _____________________________ College Graduate B.S. in Marketing (in reply to thefamilyguy209) Post #: 15

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