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#11
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V-6 in '08 Wrangler???
The jury is out, but as a general rule the V6 makes its power at speeds well
off of idle, but the old I6 makes 80% or 90% of its torque while idling. The result is that the old I6 makes for better rock crawling because you can select 1st in 4LO and have more than enough power to creep (crawl) over stuff. On the other hand, the V6 makes its power at speed, so it will make for a far more pleasant commute -- where engine speeds are high, and thus noisey. I can't say for certain, but the odds favor the new V6 to be a poor performer for offroading. Having said that, the old 225 Even Fire (and, for that matter the Odd Fire as well) were very desirable engines in the olden days. But, when those motors were in production, they were essentially V8s with two chopped off of one end. The point being, they had a long stroke, which is where torque comes from. A motor with a short stroke will produce torque further up on the RPM band, and offroaders (rock crawlers) prefer the torque to be very low on the RPM band. It is far better to pull a stump at idle than it is to yank it at 3000 RPM. "Jack Carter" > wrote in message . .. > Maybe you should check out the gear ratios in the 6-speed transmission and > then take one for a test drive - preferably one with the optional 3.73 > axles. If you're open minded - as opposed to empty headed - you might > change your mind! > > > "Mike Romain" > wrote in message > ng.com... >> Yup, it would appear you now have a mini van engine. No more crawling up >> the sides of sand pits or over rocks at 400-500 rpm like the old 6 would >> do. You now need tire spinning, hole digging, rpm to get anyplace. >> >> Probably better on the highway. >> >> Mike >> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 >> 88 Cherokee 235 BFG AT's - Gone to the rust pile... >> >> >> Jack Carter wrote: >>> A friend tells me that the engine in my new Wrangler is made by >>> Mitsubushi. Is he correct? All I've heard is that it's a "good" engine >>> and that it's used in most Chrysler-made vans and has been around for a >>> long time. > > |
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#12
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V-6 in '08 Wrangler???
Thanks for the link, but what is this name "Target", that can't be the
name of their V6, that's compared to the inline six? http://images.jpmagazine.com/project...no_char t.jpg I'll bet it's a figment of their imagination, designed for sales purposes, out and out lying. I believe I have a much more realist chart as measured by the Society of Automotive Engineers, tracing actual points: http://www.billhughes.com/temp/4LEngineHP-Torque.jpg God Bless America, Bill O|||||||O http://www.billhughes.com/ "nrs" > wrote in message ups.com... > > Some of my facts were off due to bad memory but here is the link to > the chart. It actually goes to low RPMs. > http://www.jpmagazine.com/projectbui.../photo_03.html > -- Posted via a free Usenet account from http://www.teranews.com |
#13
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V-6 in '08 Wrangler???
On Thu, 25 Oct 2007 15:06:17 -0700, L.W. (Bill) Hughes III wrote:
> but what is this name "Target" You don't know what a target is? And you claim to have a CCW? (temporarily, if at all) Ask a child about 7-years-old what a target is, and they'll explain it to you in language you'll almost be able to comprehend. BTW, do you know what a 'barn-door' is? You should since you were whelped behind one. [phr gur erthyne ebhgvar] -- "I am become Cooyon Billieboi, the destroyer of groups." -- Bhagavad-Gita (Version 2) -- aka the Bagoffat-Geezer |
#14
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V-6 in '08 Wrangler???
On Oct 25, 5:06 pm, "L.W. \(Bill\) Hughes III"
> wrote: > Thanks for the link, but what is this name "Target", that can't be the > name of their V6, that's compared to the inline six?http://images.jpmagazine.com/project...+2007_jeep_wra... > I'll bet it's a figment of their imagination, designed for sales purposes, > out and out lying. I believe I have a much more realist chart as measured by > the Society of Automotive Engineers, tracing actual points:http://www.billhughes.com/temp/4LEngineHP-Torque.jpg > God Bless America, Bill O|||||||O > / > > "nrs" > wrote in message > > ups.com... > > > Some of my facts were off due to bad memory but here is the link to > > the chart. It actually goes to low RPMs. > > http://www.jpmagazine.com/projectbui...ep_wrangler_ru... > > > > -- > Posted via a free Usenet account fromhttp://www.teranews.com It could be lying but supposedly it is a chart that is not generally made available to the public. Who knows? What I can say is that some local guys who had Yjs and TJs and then bought JKs are pretty happy with them. A shootout was organized locally to test the TJ rubicon and the JK rubicon on the same day, same obstacles, etc and the JK was declared to be the clear winner. Another shootout was organized to compare the TJ rubicon with a Toyota FJ cruiser and the cruiser had to abort because the control arms were getting bent just from the flexing! |
#15
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V-6 in '08 Wrangler???
What total garbage -- particularly in light of the chart NRS was so
kind to link. The preceding posts make it sound like comparing this "minivan" motor to the I-6 is akin to comparing a wicked, ill-tempered race motor and its street counterpart. So we've lost a bit of rotational inertia from the engine -- I'd put my money on a good driver any day over the _grand_ difference between these two powerplants. ...garage equivalent of armchair semantics...so let's talk about that really butch 4.0/4.2 .... is it more "Jeep", or is it, too, a grocery getter - just from AMC? Anybody care to comment on the huge flywheel effect or massive torque rise on a stock-engined a Samurai? Must make for a lousy crawler.... Jon |
#17
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V-6 in '08 Wrangler???
Cool. Let us know the real outcome. Not what a bought and paid for
magazine would print. God Bless America, Bill O|||||||O http://www.billhughes.com/ "nrs" > wrote in message oups.com... > > It could be lying but supposedly it is a chart that is not generally > made available to the public. Who knows? What I can say is that > some local guys who had Yjs and TJs and then bought JKs are pretty > happy with them. A shootout was organized locally to test the TJ > rubicon and the JK rubicon on the same day, same obstacles, etc and > the JK was declared to be the clear winner. Another shootout was > organized to compare the TJ rubicon with a Toyota FJ cruiser and the > cruiser had to abort because the control arms were getting bent just > from the flexing! > -- Posted via a free Usenet account from http://www.teranews.com |
#18
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V-6 in '08 Wrangler???
Sucker.
But the fifty pound flywheel like used on the Buick V6 to allow it to idle did have a secondary advantage of storing inertia energy. Your V6 won't have it as also eats gasoline. But you may buy them for the wimpy four bangers. And of course we all know of the go quick small block, thirteen pound wheel, and it's rough idle. God Bless America, Bill O|||||||O http://www.billhughes.com/ "Jon" > wrote in message ups.com... > What total garbage -- particularly in light of the chart NRS was so > kind to link. The preceding posts make it sound like comparing this > "minivan" motor to the I-6 is akin to comparing a wicked, ill-tempered > race motor and its street counterpart. So we've lost a bit of > rotational inertia from the engine -- I'd put my money on a good > driver any day over the _grand_ difference between these two > powerplants. ...garage equivalent of armchair semantics...so let's > talk about that really butch 4.0/4.2 .... is it more "Jeep", or is it, > too, a grocery getter - just from AMC? > > Anybody care to comment on the huge flywheel effect or massive torque > rise on a stock-engined a Samurai? Must make for a lousy crawler.... > > > Jon > -- Posted via a free Usenet account from http://www.teranews.com |
#19
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V-6 in '08 Wrangler???
"nrs" > wrote in message oups.com... > On Oct 25, 9:40 am, "Jack Carter" > > wrote: >> A friend tells me that the engine in my new Wrangler is made by >> Mitsubushi. >> Is he correct? All I've heard is that it's a "good" engine and that it's >> used in most Chrysler-made vans and has been around for a long time. > > JP Magazine published a torque and HP curve chart from an independent > dyno test showing both the 4.0 and the new 3.8. The curves are just > about exactly the same util up high in RPM, then the 3.8 has a bit > more torque and hp. I have also read that it takes about 5000 miles > to break into this level of performance so in test drives of new > vehicles the engine tends to feel sluggish. > > Actually, on paper, the torque curve of the 4.0 is crappy compared to > the 258 and even the old L and F head engines in terms of peak torque > RPM. However, in practice, jeepers love the 4.0. > Part of the consideration to this conversation should probably be made to the weight of the vehicles as well. The Unlimited JK weighs a full 1000 lbs more than my YJ. The weight difference in the two I'm sure is what really gave the JK a sluggish feel when I drove it and not so much even the V6. I'm willing to bet that the 3.8V6 can do just as well offroad as the 2.5L4 has been doing for people in their Jeeps. |
#20
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V-6 in '08 Wrangler???
I'm not the least bit "worried" about it - just curious. I've owned six
Wranglers, starting with a CJ5. And I liked all of 'em. The one I traded in on the new one was an '03 Sport. And it was a terrific performer. But I like the '08 far better than any of them - off or on road, but admitedly especially on road. With the six-speed transmission and a really down-in-the-basement 1st and 2nd gears, it's a ball to drive anywhere. And the torque and horsepower curves seem to sum up everything very well. "ULB" > wrote in message ups.com... > On Oct 25, 7:40 am, "Jack Carter" > > wrote: >> A friend tells me that the engine in my new Wrangler is made by >> Mitsubushi. >> Is he correct? All I've heard is that it's a "good" engine and that it's >> used in most Chrysler-made vans and has been around for a long time. > > since you already own the vehicle, why worry about it? Especially if > you just bought it with the lifetime warranty. > > |
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