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bludak2k
Dodge Dakota
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10/19/2002
14:01:08

Subject: Hemi weight advantage.
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Message:
Ok fellas, I've been debating s/c'ing my 4.7 or waiting for the hemi crate engine. One of the deciding factors is the difference in weight. The old hemis were extremely heavy, but the new 5.7 is listed as being 56 lbs. lighter than the 5.9. So, from what I figure, that puts the 5.7 at around the same weight as the 4.7, and lighter if I was to add a supercharger to the 4.7. Does anyone have the exact weights of these two engines, or want to voice their opinions on what the best route to take would be?

Thanks,

bludak2k

2000 rc, 4.7, 5 spd., 3.55 anti-spin, 3"cat, 3" race magnum muffler turned down, lakewood t-bars,tps set @ .76v, k&n, HO cams.



CW
GenIII
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10/19/2002
19:27:37

RE: Hemi weight advantage.
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A hemi crate engine... You will be waiting a long time, I bet. The way I look at it is that a turbo 4.7 can pull 12s what more do I need.

4.7 HO, CW style
2001 4.7 5sp 3.92 LSD
Ported 68mm TB, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" Z-tube, Roadmaster active suspention, Removed Third cat, Electric fan Convertion, HO cams, Robert shaw 180 therm, HO intake manifold.

91dakotaFreak
Dodge Dakota
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10/19/2002
20:22:41

RE: Hemi weight advantage.
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just wait for a wrecked 2500 with a hemi to show up in a junk yard



kota on 20s
GenIII
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10/20/2002
01:06:03

RE: Hemi weight advantage.
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50 something pounds is not much, when talking about a 4,000 + pound truck. definatly not worth the money on a crate engine

i agree with CW

-Eric
Injection is nice, but i'd rather be blown.
5.2L, 5speed. Powerdyne SC, 50mm TB, 2bbl M-1, 1.7RR's, MSD 6BTM, ciramic JBA headers, 3" carsound cat, dumped gibson

Fubar512
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10/20/2002
01:26:39

RE: Hemi weight advantage.
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Hey Eric, you ever run that monster at the track? If so, what et and mph did you get in the quarter?



kota on 20s
GenIII
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10/20/2002
02:14:50

RE: Hemi weight advantage.
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yeah, and i cant beleve i am going to admit it, but i ran a 14.9@95

my 60' was a 2.4, and the staging lanes were not level. i had to use my right foot for the break and gas, and the left for the clutch, and try to launch it without spinning too much..hahaha yeah! (this i was NOT ready for). Also, i let the clutch out of 2nd too fast, and it slipped out of gear. (was my 1st time at the track and i was a little nervious) on top of that, it was 104 degrees out, with a 10 mph headwind.

i was only getting 4 1/2-5#'s of boost, and i was on the stock TB.

since then, i have added a 52mm TB, and i am getting ready to change the exhaust, get some 24# injectors, slicks and a 9# pulley. and maby, just maby, a alky/water injection system

here is me beating my buddies blown RT. yeah, it was a bad day for all of us.
http://www.dakota-durango.com/photos/Fontana/DSC00386.JPG


-Eric
Injection is nice, but i'd rather be blown.
5.2L, 5speed. Powerdyne SC, 50mm TB, 2bbl M-1, 1.7RR's, MSD 6BTM, ciramic JBA headers, 3" carsound cat, dumped gibson

Fubar512
GenIII
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10/20/2002
02:40:04

RE: Hemi weight advantage.
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Hmmmm....you definitely need to sort that out.

My guess was you would run 14.0s at around 100 mph, with your biggest problemm, being, getting all that power to the ground.

Well, dude, half the fun is the struggle involved getting there! So, sort it out and don't disappoint us...



kota on 20s
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10/20/2002
02:45:53

RE: Hemi weight advantage.
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i should have the slicks soon... i figure if my buddy can get his wifes 4 wheel drive durango RT to do a 14.2 @99 with less mods, i can do a 13.7 easy.

i just have to learn how to drive on the track! also, this thing is WAY faster in the cold!!

-Eric
Injection is nice, but i'd rather be blown.
5.2L, 5speed. Powerdyne SC, 50mm TB, 2bbl M-1, 1.7RR's, MSD 6BTM, ciramic JBA headers, 3" carsound cat, dumped gibson

Ctdak
Dodge Dakota
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10/20/2002
20:37:08

RE: Hemi weight advantage.
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Does anyone know if you can by a 4.7 crate or where to look for a 4.7. I'm looking to swap my aging 5.2. I would go for a Hemi, but that would have too many problems to sort out.



CW
GenIII
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10/20/2002
21:11:59

RE: Hemi weight advantage.
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Do you have to have a driveshaft loop when you put on skicks at your track. I am pretty sure they require them at my kinda local track.

4.7 HO, CW style
2001 4.7 5sp 3.92 LSD
Ported 68mm TB, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" Z-tube, Roadmaster active suspention, Removed Third cat, Electric fan Convertion, HO cams, Robert shaw 180 therm, HO intake manifold.

IntenseDak39
*GenIII*
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10/20/2002
21:38:02

RE: Hemi weight advantage.
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there is a place that is selling the 5.7 as a crate but it isnt mopar performance cataloge... i will look for it... i think it was around 6 g's

--"did you mean the charger, because that's got a hemi, too!"
98 Dakota Sport V6: 8.95@77.9 mph (1/8th)
99 Oldsmobile Alero GL3 V6: xx@xx mph

Fubar512
GenIII
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10/20/2002
21:41:56

RE: Hemi weight advantage.
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Skicks, CW?



CW
GenIII
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10/20/2002
22:09:32

RE: Hemi weight advantage.
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Yeah a new type of racing tire. The new skicks are great;) LOL, oops.

I should proof read better.

4.7 HO, CW style
2001 4.7 5sp 3.92 LSD
Ported 68mm TB, IAT adjuster, 3" flowmaster cat back, TPS @ .76V, 4" Z-tube, Roadmaster active suspention, Removed Third cat, Electric fan Convertion, HO cams, Robert shaw 180 therm, HO intake manifold.

EyeTrip
R/T
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10/20/2002
22:55:35

RE: Hemi weight advantage.
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The new HotRod Magazine has an article with pic's on the new Hemi. November issue.


MikeD
*R/T*
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10/21/2002
09:22:49

RE: Hemi weight advantage.
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Saw the new Hemi at the Auto Show at the State Fair. They had the engines there cut in two and you could see inside. It was pretty cool to see the hemi pistons. The 300 HemiC was a pretty slick looking car.

~Mike~

Get In...Sit Down...Shutup...& Hangon

Bludak2k
Dodge Dakota
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10/21/2002
15:09:53

RE: Hemi weight advantage.
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Intense dak39: Thats the same add that I saw. Engine was all chromed out, and said they could add ported heads for a little extra cash.

400hp hemi =$6500
400hp turbo 4.7 =$5500

I don't know, a fresh engine and the hemi's cool factor might be worth the $1000. Plus I could sell the 4.7 to cover the cost of the swap.....
Think that hemi would bolt up to my 5 spd or a t-56?



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