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noob 2 muscle
Dodge Dakota
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1/09/2012
01:27:01
|
 Subject: 3.9 magnum bored
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so has anyone bored any of these over yet??? it
seams like that would be a good idea.. and wouldn't
you end up with like a 4.3 or something???
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noob
Dodge Dakota
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1/22/2012
00:01:08
|  RE: 3.9 magnum bored
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anyone have any comments at all? any 3.9s out there
that are bored and/or stroked, i would love to hear
about.
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daddio
Dodge Dakota
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1/22/2012
00:24:21
| RE: 3.9 magnum bored
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You're not going to get much from boring .030 over stock. And there used to be stroker kits available but I don't think anyone makes them anymore. I'm sure some cylinder head work would probably be the best route.
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noob
Dodge Dakota
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1/22/2012
21:09:56
| RE: 3.9 magnum bored
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well i have a 95 and its time to trash it or build
it and i figured i would have to get the cyl honed
anyways i might as well make it a new motor as far
as i can. so what could i expect is what im trying
to get out of this because i like the truck and the
motor, so ill be keeping them and boring it out. new
motor... then cam, head work, and so on out. its not
my daily driver so i have time for it to sit and do
some work. and im not complete noob just as far as
actually doing it, i have the knowledge, thats it.
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Curly
Dodge Dakota
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1/23/2012
03:32:48
| RE: 3.9 magnum bored
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a .30 over bore would now even yield 6 cubic inches
on a 239 c.i. motor
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daddio
Dodge Dakota
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1/23/2012
19:53:01
| RE: 3.9 magnum bored
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Depending on what year your truck is you'd probably be better off finding a 5.2 and putting a stroker in that. you can get 390 cubes out of those.
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noob
Dodge Dakota
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1/23/2012
23:51:14
| RE: 3.9 magnum bored
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kinda lookin to build on the 3.9 specifically..
friend said there was no way it could ever be fast
and lookin to disproove him. i know i wont be
beating any comaros or anything like that. but you
understand why i feel like a have to
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daddio
Dodge Dakota
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1/24/2012
13:09:45
| RE: 3.9 magnum bored
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If you have to go the 3.9 route, I would bore it .030 over, do the headwork, port and polish. And up compression as much as possible. Probably about 10:1. And go carb using premium fuel only. Do away with the fuel injection because I don't think the PCM would be able to adapt. It would not be a daily driver. That's just my opinion.
|
noob
Dodge Dakota
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1/25/2012
16:36:16
| RE: 3.9 magnum bored
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not a daily driver because of gas mileage? or
another reason. and i was thinking about shaving
the heads already just didnt know how far to go on
the bore. already have a fastman tb on it to help
support airflow
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daddio
Dodge Dakota
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1/25/2012
20:50:21
| RE: 3.9 magnum bored
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Not a daily driver if you want that kind of power. A radical cam and high compression can get a little difficult to drive on the street. Low vacuum and a loping idle is not fun in traffic. Search for some Mopar performance vendors. One I've heard of but have seen some negative feedback on is Hughes Engines. I'm sure there are others.
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cupofnoodle
Dodge Dakota
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1/26/2012
19:07:56
| RE: 3.9 magnum bored
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your better off building a 5.2 or 5.9 dont waste your time on that sh!tty 3.9 but if thats all you can afford then you should get a 5.9 crank from the junk yard and cut the 2 extra rod journals and weld the crank sprocket on and bore the 3.9l block .30 over then you got a badass motor
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LMFAO
Dodge Dakota
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1/27/2012
12:03:12
| RE: 3.9 magnum bored
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"get a 5.9 crank from the junk yard and cut the 2
extra rod journals and weld the crank sprocket on"
aahahahahahaahahaha
SHYT I can't stop laughing!
|
bongboy
Dodge Dakota
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1/27/2012
13:51:45
| RE: 3.9 magnum bored
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thats such a good idea i would try that myself but i got myself a 5.9 so no need to do any crankshaft cutting but im a hundred percent sure that it would work
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LOL
Dodge Dakota
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1/29/2012
00:04:17
| RE: 3.9 magnum bored
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bongboy = cupofnoodle playing with himself
|
BONGNOODUH
Dodge Dakota
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1/31/2012
11:12:10
| RE: 3.9 magnum bored
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Message:
JUST BORE THAT SUM BICH OUT TO .90 OVER AND THROW A STOVCK PISTON IN...LESS FRICSION = MORE POWER. LOOK BRO....SHAKE THE F^CK OUTTA YOUR BABY AND THEN SEND UR BLOCK TO THE MACHINE SHOP AND HAVE THAT POS BORED OUT. ONLY RUN 1 RING THO ...LESS FRICSION..LIKE I SAID MORE POWER!!
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negrodamus
Dodge Dakota
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2/10/2012
14:20:09
| RE: 3.9 magnum bored
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so how did your v6 run after you bored it out and cut the crankshaft? any noticable hp and torque gains? you should have a 4.3l or 4.5l right?
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BONGGONE
Dodge Dakota
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2/10/2012
18:41:08
| RE: 3.9 magnum bored
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SMACK YOUR BABY! SHUT THAT BABY UP SHUT THAT BABY UP
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cupofnoodle
Dodge Dakota
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2/11/2012
00:08:06
| RE: 3.9 magnum bored
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Message:
hey bonggone where did your bong go? did you forget to remember that you used it to crack your crossbred babys skull? do sum research and smoke more meth and get the f*ck outta here dumass
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pablo
Dodge Dakota
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2/15/2012
12:37:55
| RE: 3.9 magnum bored
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What are the pro's and cons of gaining displacement using Bore vs. using Stroke? Does one produce more peak HP? Is one method easier on components?
What does Rod Ratio have to do with it?
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Nelly
Dodge Dakota
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2/15/2012
16:07:38
| RE: 3.9 magnum bored
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somebody has done this before because i read a post on here that this guy did it and he got about 220 horsepower to the rear wheels. i was hoping he would respond since he is one of the few that successfully bored and stroked his 3.9l and got a 4.6l
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Yeah
Dodge Dakota
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2/16/2012
10:56:10
| RE: 3.9 magnum bored
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Larry did it, With a stroker kit!
(they are no longer made)
He DID NOT cut a V8 crank, It can't be done!
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