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BeaverBasher
Dodge Dakota
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1/23/2004
16:55:42
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 Subject: 3.9 v6 Horsepower?
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Does anyone know the horsepower of a 99 Dak. with a 3.9 v6? as well as that... what is the offroad performance like in a Dakota? ive never driven oen and i need a cheap offroading truck... pelase help me
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175 hp
Dodge Dakota
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1/23/2004
16:59:09
| RE: 3.9 v6 Horsepower?
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175 hp 225 tq.
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Greg
Dodge Dakota
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1/23/2004
19:49:29
| RE: 3.9 v6 Horsepower?
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And that's 175 BHP "brake hp or flywheel hp" not RHP "rear wheel hp"... So you might have around 125hp or 130 RHP if your lucky...
I think Bernd on here has the most powerfull V6 with around 256 RHP the last time anyone heard or atleast I think it was RHP :))
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IntenseDak39
*GenIII*
1/23/2004
20:05:01
| RE: 3.9 v6 Horsepower?
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it wasnt... with his naturally aspirated-customer financed-economy killing 3.9, he only mustered about 205-210 rwhp. He has added a s/c to it and once again is in the mid to upper 14's
he thanx yall for all your hard earned money!!
Larry has the strongest NA V6 motor by far... i think he got 276 or so rwhp out of it.
Dodgeboy probably has the strongest non-NA V6 motor.
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175 hp
Dodge Dakota
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1/24/2004
07:47:24
| RE: 3.9 v6 Horsepower?
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hey greg did he ask for rwhp???? noooo. so shut the **** up. Bernd is no longer on here no has he been for over a year due to taking money for parts never delivered so he don't count. And since you are way off on the shysters rwhp shut up on that account too.
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Greg
Dodge Dakota
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1/24/2004
12:52:56
|  RE: 3.9 v6 Horsepower?
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My oh my, must be about that time huh :)) I just thought that I would simply point out that the 175hp is BHP and not RWHP... That's really all...
AND your right about Bernd, I was thinking about him and meant Larry, because he's the one with the 276 RWHP and he gets about 23/24 mpg out of his 4X4, which is what is really great about it ; ))
Now you got some stuppid SMART A$$ remark for this as well??? Atleast try to type right this time so I don't have to reread it three times :))
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Wadak
Dodge Dakota
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1/24/2004
12:57:05
| RE: 3.9 v6 Horsepower?
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175 hp, I know Bernd got himself in financial trouble and had to close his business. I believe Greg was only stating fact. Yes Larry and Dodge boy have the strongest v6 that are normally aspirated.
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J and J Auto
GenII
1/24/2004
23:41:13
| RE: 3.9 v6 Horsepower?
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267/305 14.4 @97
My stroker was pulled yesterday going to change
the heads and am thinking about trying a diff
cam profile. That's why I took the comp test and
found only 2 pounds diff across the board with
the #2 cyl being 2 less all others were identical
Have to match the heads to the intake and bolt it
back togather.
I am running a stock 3.9 with 1.7's MSD headers
48mm F&B JBA's 19# FMS for a while with the stock
comp and a jet 2 chip until I am done doing a
few more things to it. I want the 33 HP I am short
of for getting my 300 HP I want.
These heads were done by our crank guy says
they should net me 10 to 15 HP over the KRC heads
Will be back in the truck in a few weeks and going
for another dyno run as soon as its back in
Just could not be with out my Dak that long so
Jason droped my 92 V6 in this is the motor I am
going to put the 4.0 stroker crank in, it came out
of a rolled truck, runs very well for now
Larry
J&J Auto
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smoht
Dodge Dakota
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1/25/2004
00:09:44
|  RE: 3.9 v6 Horsepower?
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What all do you have done to your motor to be pulling them kind of numbers N/A Larry? Whats the ball park price you have in it all also. :-)
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IntenseDak39
*GenIII*
1/25/2004
08:16:25
| RE: 3.9 v6 Horsepower?
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stroker kit and about $6K invested... but hella sweet
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Greg
Dodge Dakota
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1/25/2004
08:37:50
| RE: 3.9 v6 Horsepower?
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Yep, because everything he's listed up there is in the $300 apiece figure... Some a little less and some a little more depending on who or what company he bought them from...
You know since you've got pretty well plenty of money and very interrested in it Larry, you might want to look into bores and pistons along with maybe some gapless ring sets and such... Really put the air and fuel to it then, but then your loosing your 20 some mpg figure as well :))
Please let us all know how your hp figures come back ; ))
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J and J Auto
GenII
1/25/2004
13:42:32
| RE: 3.9 v6 Horsepower?
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Greg,
The things I have listed on the above post are
what's in the 92 motor that is just in my truck
temporarily for a few weeks.
I am running aftermarket pistons at 10 to 1
The heads I will be putting on are also shaved
.020 so it will be maybe 10.1 10.2 to 1
I will also be trying a 50mm throttle body and be
shortening the runners another 1/2" the bores on
the manifold are already opened to 50mm but never
tried a 50 been running the 48mm F&B
I have over $6000 in this motor was also thinking
about getting a set of pistons to run 10.5 to 1
I should still be able to run pump gas if I go
11 to 1 I doubt I would be able to without using
an octane booster and that I would rather not do
its hard on the o2 sensor.
The 95 motor has a stroker crank, custom cam
ported and matched heads that are also matched
with the headers, a lot of screwing around but
well worth it. And a 1600 rpm stall converter that
mutiplys the HP and torque by about 1.5 would be
my best guess that alobne makes a big diff being
at 2000 rpm as soon as the truck is rolling
Larry
J&J Auto
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Greg
Dodge Dakota
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1/25/2004
14:21:09
| RE: 3.9 v6 Horsepower?
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WOW That's really all I can say besides the fact that I wish that I had the engine your running right now even though it's only putting out a fraction of the hp that your stoked one is :)) Have you looked into JE pistons... They've got a new hemispherical piston design now that would allow you to SC that beast and really bring all that other stuff alive... I'm sure for the right price they would make some for you... Allthough I doubt you want to loose all the fuel milleage that your getting out of your regular naturally aspirated 3.9l... You could always SC your stroked engine then have the current engine your running in your truck right now for the fuel milleage and all that stuff...
Larry what do you think I will get out of my 3.9 with the following ---
Current mods are ---
cold air intake
tornado
holley performance dual 52mm TB
Bosch quads, wires, cap and rotor
had to take off tb spacer, but would had liked to kept it, but won't work with new tb
I also use Mobil's 0-30 full syn and will switch to new 0-30 "racing formula" this spring when it comes out
Mods on the way are ---
relocated IAT to cold air intake, because much much colder "like sticking hand in freezer when touching intake piping"
port matching of TB to intake "dual 53/54mm bores"
port and polish of heads
head and intake shave of .015 or .020 like yours since you have no problems with it "this will also give more valve lift due to unaltered pushrods"
crowler 1.7 rr's "I'll just knock back the oil baffles or use two gaskets, but may run into sealing problems with that"
thinking about gibsons headers "due to chrome looks"
maybe solid 2.5" Y pipe, then on to high flow cat and dual exhaust
180 degree stat
maybe even underdrive crank pulley since there only $70
also new o2 sensors "don't know if I like the $80 apiece price though for two little sensors"
And if T56 ever gets that 6speed tranny conversion off of the vipers figured out, then maybe that as well
I think that was it :))
So what do you think that will push me into in the RWHP and torque range???
Help or destroy fuel milleage???
I'm allready really really happy with the tb, so am planning on all of this really helping ; ))
Any thoughts at all would be very appreciated...
Thanks,
Greg
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J and J Auto
GenII
1/25/2004
20:20:33
| RE: 3.9 v6 Horsepower?
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My stroker is the motor that gets the good gas
mileage the stock 3,9 with the 1.7's 48mm F&B
headers carsound dynomax MSD, box wires and coil
and the jet 2 chip & cold air is only getting
about 19 20 in the cold
stroker 21 and 22 to 24 in the summer
With the stroker I can start from a dead stop just
push the throttle about 1/8" and it will roll upto
60 65 mph the farther I push it the faster it gets
there. Its a great motor
I think I am just going to change the heads, match
the ports and a new set of lifters they have
91,000 on them the chain has only 11,000 so
that's fine. going to stay with the same cam for
now.
Larry
J&J Auto
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Greg
Dodge Dakota
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1/25/2004
20:49:58
| RE: 3.9 v6 Horsepower?
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You wouldn't happen to know about what hp I can expect out of mine after I do all of the above do you, since you do a lot of dinos and change out parts a lot? I've decided to not bother with the Tstat due to some other post.
Yeh, the stroker from everything I've heard you post about it, is really something else :)) Wish I had that kinda power out of mine!
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wadak
Dodge Dakota
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1/27/2004
22:33:36
| RE: 3.9 v6 Horsepower?
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Larry you said "These heads were done by our crank guy says they should net me 10 to 15 HP over the KRC heads", What does he do differently than what KRC does. Maybe I need a little education on porting and polishing and valvejobs. If you would rather discuss this offline. My email wadak1234@yahoo.com or post here your choice.
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dale k rose
Dodge Dakota
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8/12/2005
15:19:12
| no rear brakes on 92 dakota
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4 years driving this truck and no one can seem to get the brakes on rear working any help please
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HELLO?
Dodge Dakota
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8/12/2005
18:12:15
| RE: 3.9 v6 Horsepower?
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Holy sh*t.
$6,000 worth of work into a $2,000 truck.
I'm impressed.
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Adam
Dodge Dakota
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8/12/2005
20:13:05
| RE: 3.9 v6 Horsepower?
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Greg- Where'd u find a underdrive pulley kit for 70? The only one I could find was from summit for $122
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