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toolfan
GenIII
8/05/2006
21:30:09
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 Subject: RE: 3.9 vs. 4.7
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they should be faster they have more hp stock.
Mopar 5.9 250hp/chevy 4.8L 285hp 5.3L 295hp
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GraphiteDak
GenIII
8/06/2006
12:11:53
| RE: 3.9 vs. 4.7
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Yeah Toolfan, I wanted to see if he was thinking I had a manual or the other guy. Maybe wondering why a 4X4 almost bone stock 4.7 could beat a RC 2WD 4.8 almost bone stock in the 1/4 :)
The Chevy engines have more HP because they breath better with their induction technology they use. But the 4.8 still seems to not have jack sh*t for power until you get it up in the HIGHER power band. That's all I'm saying. So while it has like 50 more HP peak than a 4.7, you have to run it higher R's if you had some weight in compared to other engines or even a Dodge 4.7 that could grunt and actually do BETTER LOL!
The 6.0 is the only one that really seemed to have power right from the dead stop. I drove one of those for about a year until anout 3 months ago I'm stuck in another 5.7 Chevy right now.
The 6.0 had way more take off from a dead stop, and luckily mine didn't have a piston slap to listen to!
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2002 R/T
Dodge Dakota
JOIN HERE
8/06/2006
17:20:21
| RE: 3.9 vs. 4.7
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hey give the 4.8 some gears like our trucks. stock i think they have 3.42's add some 4.10s and see what happens
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GraphiteDak
GenIII
8/06/2006
20:51:39
| RE: 3.9 vs. 4.7
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Well then right there you would agree with me. That engine would run awesome with lower gears. The earlier that engine gets into that wicked HIGHER RPM band, it's going to move.
A 4.8 6 sped would be pretty good in a GTO or something.
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TexasTodd
Dodge Dakota
JOIN HERE
8/07/2006
15:58:56
|  RE: 3.9 vs. 4.7
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The first two replies answered the original question of this thread.
SNAP
There, I just broke the thread, no more replies.
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Fed
GenII
8/07/2006
21:33:09
|  RE: 3.9 vs. 4.7
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why cant they battle it out some more?
its entertaining..
and pretty useful,
I think the r/t dude who apparently favors the chevrolet is losing though.
haha
'93 Dakota CC 3.9 auto
(4.10 gears, LSD, exhaust, FIPK, lowered, rear anti-sway bar)
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GraphiteDak
GenIII
8/07/2006
23:54:15
| RE: 3.9 vs. 4.7
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Well you will notice I agree in certain ways :p
It's just finny how some engines ghet higher HP ratings, yet in the REAL world somehow it doesn't seem all that much better. Bust be TORQUE curves! Similar to the people who think the 265HP 4.0 Taco/Nissan would tow better than our V8's! SHEEEET!!!
Now IF I were to get a Chevy truck. I'd choose the 6.0 IF I were to get one.
The 4.8 2WD can't even beat a 4.7 4X4 LOL!
There. I threw the next blow!
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2002 R/T
Dodge Dakota
JOIN HERE
8/08/2006
11:35:00
| RE: 3.9 vs. 4.7
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well actually my R/T is pretty quick Fed! i have run a 13.9@99 on drags radials. i just like the topend performance of the LS series engines. like i have said before i know from experiance becuase my uncle has and 5.3 silverdo and a friend has a 4.8 silverado and a friend with a LS1 camaro. i know alot of R/T's and 4.7 guys put aftermarket cams and when u do that to the LS engines they respond VERY well.
2002 R/T
M1
K&N air intake
Holley 52mm TB
PPH y/pipe
1.7 HS rr
Hypertech programmer
13.9@99mph was in 60 degree weather
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Jerry
Dodge Dakota
JOIN HERE
8/08/2006
20:16:08
| RE: 3.9 vs. 4.7
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All the Vortec motors got a boast in power
4.8 295hp
5.3 320hp
I5 3.7 242hp
I4 2.9 195hp
I6 4.2 291hp
also in the next few year there all going to direct injection which will add 15% in hp and tq.
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GraphiteDak
GenIII
8/08/2006
21:17:59
| RE: 3.9 vs. 4.7
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Message:
Direct Injection?
As in over 1000 PSI fuel pumps and injected into the cylinder like a Deisel???
The only thing there is another technology to overcome when playing with boost. But maybe not. :p
Dodge gives their own 4.7 no respect, because they want to sell their HEMI. Which isn't anymore a HEMI than the 4.7 is compared to the ORIGINAL HEMI.
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2002 R/T
Dodge Dakota
JOIN HERE
8/08/2006
21:21:53
| RE: 3.9 vs. 4.7
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my buddys 2002 z/28 put down 307hp and 320tq at the wheels with just a flowmaster muffler and a air lid. i have a friend with a 99 SS camaro and he has full exhuast,comp cam 591 lift , air lid, and a dyno tune and he puts down 389hp at the wheels. A stock 5.3 silverado can see about 255hp at the wheels. my R/T with my mods put down 257hp and 310tq at the wheels but it was at 81% humidity.
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toolfan
GenIII
8/09/2006
00:02:23
|  RE: 3.9 vs. 4.7
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i think the 4.7 is the new 318. its a great engine and could make awesome power but everyone just ditches it for the hemi. just like people did with the 318 throwing it out for the 340 or 360.
if you think the 5.3 have great top have you every ridden in a car or truck with a hemi? those engines have great bottom end and as soon as they hit 4000rpm they really open up screaming to 5800rpm. and they sound awesome as they claim in rpm.
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Fed
GenII
8/09/2006
01:06:56
| RE: 3.9 vs. 4.7
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ahah i wasnt baggin on your dakota 2002rt! i love that truck!!
ahha but yeah you guys should ride in a Cherokee SRT-8
wippeeee that thing is amazing!!
talk about whip lash when you take her from a dig
'93 Dakota CC 3.9 auto
(4.10 gears, LSD, exhaust, FIPK, lowered, rear anti-sway bar)
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2002 R/T
Dodge Dakota
JOIN HERE
8/09/2006
10:59:43
| RE: 3.9 vs. 4.7
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yes GraphiteDakota i have ridden in a hemi ram. my friend has a 04ram with a hypertech programmer, a flomaster super 40 with the 3rd cat removed and a K&N air intake. he ran a 15.3 at the track on a cold night. but alot of guys with hemis think they are the s**t. the rams are just a big ole hefty pigs. even my reg cab R/T is a pig 3850lbs. the 6.1 hemis are pretty badass though.there intake manifolds almost look like the LS1 intakes
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TexasTodd
Dodge Dakota
JOIN HERE
8/09/2006
18:00:07
| RE: 3.9 vs. 4.7
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'Et tu Brute?'
Start a new thread..............
die you beast!!!!
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GraphiteDak
GenIII
8/09/2006
22:11:07
| RE: 3.9 vs. 4.7
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Naw, you know the thread wont die!
And in 2 yrs someone doing a search will revive it for another 100 posts!!!!
Anyway, 2002 R/T said "even my reg cab R/T is a pig 3850lbs"
I WISH I could say that!!!
Last time I had mine weighed, it was just at 5200 Lbs 200 os Lbs being what I was hailing in the bed, and the rest what I usually carried in the truck. Truck box with largest Deep Cycle I could buy, mechanics tools, ATV riding stuff and tools... amps and subs behind and under the rear seats. I think they said the stock weight is 4700 for my model of a Dakota!!!!
When I raced, I didn't remove the truck box or spare tire, or anything. I figured I'd see what it does AS IT SITS.
Take 1000 Lbs off and I'd be in the low 15's I bet.
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toolfan
GenIII
8/10/2006
03:46:53
|  RE: 3.9 vs. 4.7
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Message:
i think the manifold looks more like the magnum manifolds.
i see 2002r/t loves the Chevy motors but they still don't impress me. my truck weighs near the same and has 160k miles way less claimed power and will eat them out of a dig and run with them on the top end with 65less peak power.
hemi guys are no worse than any ford guy yet they have the balls to prove what they say.
i would like to see a competition with a 5.2 vs 5.3 and see which makes the most usable power. or take a 6.1 hemi and put it up against a 6.0 chevy and see which makes the most power.
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Fed
GenII
8/10/2006
04:34:22
| RE: 3.9 vs. 4.7
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Message:
yeah! what toolfan said...
haha
you know what engine really kicks butt?
the 5.6 liter Titan V8
'93 Dakota CC 3.9 auto
(4.10 gears, LSD, exhaust, FIPK, lowered, rear anti-sway bar)
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2002 R/T
Dodge Dakota
JOIN HERE
8/10/2006
14:00:45
| RE: 3.9 vs. 4.7
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i like dodge it just pisses me off on how much they weigh. our dakotas alomost weigh as much as full size silverado and f-150. the rams are just fat a''ses. i just like the fact that the respond very well to mods. put heads and cam and they put down impresive power
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GraphiteDak
GenIII
8/10/2006
17:48:07
| RE: 3.9 vs. 4.7
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Message:
Actually the Titan 5.6 runs close to what the Hemi Rams run. Have seen them all at the track and have raced them. Lost by a few tenths when I had the 3.55 one wheel peel set to 15 PSI to get kind of a launch. With my gears and LSD I am dead even with them. Maybe even BEAT them without my truck box that's out now.
One thing about the Titan. They were rated POOR on reliablity. And one thing is it's rear end is as small as my FRONT axle! It's tiny. My Dakota )mid sized Dodge) with the 9.25 rear will be more reliable.
Also they stuck the Starter UNDER the intake manifold.
How stupid can you get Nissan?
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