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Ron
Dodge Dakota
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2/27/2003
21:08:28
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 Subject: 3.9 4" STROKER KITS
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Anyone interested in a 4" stroker kit for the 3.9 Magnum V6??
cost should be about $1,250.00 plus shipping..
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NYSubDak
Dodge Dakota
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2/28/2003
00:15:14
|  RE: 3.9 4
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I'd be interested. What are the gains? Does a stroker kit change the reliability of a motor if you don't use it any harder? I would think not, since you are probably using better than stock parts. I can actually see a stroked 6 being stronger than an 8 of comparable displacement, considering the crank and cam are shorter. Then again I really don't know what I am talking about. The price is a lot less than a blower. Are there any emissions implications? Which company are you using?
Wade
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Ron
Dodge Dakota
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2/28/2003
00:32:51
|  RE: 3.9 4
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we are currently begining developement of the kit
and we are trying to see if we would have a market for it.
It'll use a set of Eagle "I" or "H" beam rods and a set of 6 Diamond Racing pistons with a custom 4" stroke crank made specifically for this engine.
It shouldn't effect emissions and reliability.
it will be a stronger rotating mass than stock that will make a solid foundation for performance modifications.
Ron-
Co-owner: Muscletrucks.net
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Undecided
Dodge Dakota
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2/28/2003
01:38:12
|  RE: 3.9 4
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1250 for rods, pistons, and a crank?
Sounds like a sweet deal to me!
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Lattimer
Dodge Dakota
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2/28/2003
10:17:02
| RE: 3.9 4
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I would be all over it. The only other stroker kit I have seen is over $3000. Can you really build a quality kit with a custom crank that cheap??
Shawn
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swingman
Dodge Dakota
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2/28/2003
14:14:17
| RE: 3.9 4
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What you probably need to do is find someone local who is willing to donate their truck for the testing of this kit. Obviously he/she would have to help out with the costs and I'm sure this would still be worth their while.
Post dyno results and I'm sure you'll have your market. You'll be surprised of how many V6ers there are out there who just sit back and read these posts. All they need is hard copy back up to justify the purchase. Everyone with a V6 is waiting for that person to step up to the plate and be the guinea pig.
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Dillegm
GenII
2/28/2003
15:39:51
| RE: 3.9 4
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I'll be the guinea pig!!
lol
Dillegm
93 3.9 being painted Black pearl at the moment
http://crooked-ridez.no-ip.com/dillegm
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Brian Maier
Dodge Dakota
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2/28/2003
16:57:41
| RE: 3.9 4
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For $1250 for a crank, rods, and pistons i would totally be in. That beats the hell out of the price at:
http://strokerkits.com/3_9_chrysler_stroker.htm
At that price it would be the best mod going for our 6ers, assuming that you do quality work.
Im gonna re ask what Lattimer did. How so cheap?
make this happen!!
Brian
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Greg555
Dodge Dakota
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2/28/2003
18:36:00
| RE: 3.9 4
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i'm all about being a test pilot. so i think the
onl major question is how are you making the
crank? is it a custom forgeing or what?
Greg
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Ron
Dodge Dakota
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3/01/2003
00:03:30
| RE: 3.9 4
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The reason I posted this question is that we had been discussing doing a project of this type,
but due to the fact that another company has a crank design made of billet steel that is not very cheap,we knew we had to find a way to make it more affordable than that.
We also had to find out for sure that we had a market for the kit........from what I'm reading here it appears so!
We've gotten lucky in finding a company that is willing to work with us in designing the crank, we just have one problem.They can't begin to work with us on this until a current order they are contracted to fill is completed.
Typically projects of this type take a lot of time to develope and are expensive to finance.
The basic design,set up, and production of the
prototype would take upwards of a $1,000-$1,500
plus the expense involved in the final machine work to fit the crank in the block, which will include balancing of the assy, clearance has to be made in the block for the rods and crank counterweights, etc.......final assy of the engine and installation and testing........
I'm expecting the first prototype kit to cost us in the area of $2500.00 to get the kit in a running engine and installed in a Dakota.
Once we can get the funds available to begin the project we will start work.
PLEASE BE PATIENT WHILE WE DEVELOPE THE KIT!
Ron-
Co-owner: Muscletrucks.net
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Fenris
Dodge Dakota
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3/01/2003
02:23:34
| RE: 3.9 4
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Hey, I heard about the 4" kit from DakotaUSA.com
Sounds like a sweet deal!!!
When I make some more money, you should have the kit done by then... I'll give you a call.:D
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Fenris
Dodge Dakota
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3/01/2003
04:50:08
| RE: 3.9 4
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BTW, around the time I have the stroker kit put in, how well do you think it'd react to a twin-turbo setup?
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Ron
Dodge Dakota
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3/01/2003
11:06:33
| RE: 3.9 4
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A Twin Turbo set up on a v6 would be overkill, my personal opinion would be a single Turbo set-up with about 10-15 psi boost and a mild Nos shot (25-50hp)would be all that's needed.
-Ron
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Greg555
Dodge Dakota
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3/01/2003
18:50:34
| RE: 3.9 4
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all i have to say is thank you for taking on this project. take all the time you need to set it up because the market is here thats for sure. oh and count me in on buyin one when you get it complete.
Greg
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87DakBuilder
Dodge Dakota
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3/02/2003
08:16:03
| RE: 3.9 4
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Oh Yeah,
I'm Definately down, I was actually going to start saving my money to get the first one from the guys at strokerkit.com for a price of $2995. Even at $2500 that's better, once you get the price down that'd be great. The market is definately here. I'm Rebuilding my 92 v6 and I want a stroker kit, I can justify it more with the wife for the price you are talking. Thanx again man
87DakBuilder
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90daknthe12s
Dodge Dakota
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3/02/2003
10:40:00
| RE: 3.9 4
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hey would it be possible to get the stroke about another 1/4 inch longer? like make it a 4&1/4 inch stroke that 1/4 inch of stroke would push the displacement up enough to get a 5.o v6 actually if you bump it up to 105.92mm it would put it rigt at 5.0l if you bored it .030 over if what im saying sounds strange or just dumb as hell im sorry but my head dosent stop working
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Ron
Dodge Dakota
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3/02/2003
22:26:37
| RE: 3.9 4
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TO GO ANOTHER 1/4 INCH MAY INVITE CLEARANCE ISSUES FOR THE COUNTERWEIGHTS AND CONNECTING RODS.
ONE OF THE THINGS I HAVE TO ACCOMPLISH IS MAKING SURE THE 3.9 BLOCK CAN BE RELIEVED ENOUGH SO THAT WON'T HAPPEN.
A 4.0 STROKE IS GOING TO BE PUSHING IT, EVEN IN A
318 OR 360 BLOCK IT COMES REAL CLOSE...........
RON-
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87DakBuilder
Dodge Dakota
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3/05/2003
07:25:04
| RE: 3.9 4
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Ron,
Just an FYI from the information that I gathered from the guy at strokerkits.com, there isn't a clearance issue, I don't recall the specs off hand, but they actually put a 4.0 stroked crank in a magnum 3.9. The main reason that they have the price so high at the moment is due to lack of interest in the kit, and they are using a billet steal crank. Once someone makes the crank for less the price should come down considerably.
87DakBuilder
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kRaSh
Dodge Dakota
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3/05/2003
10:19:00
| RE: 3.9 4
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Ron, Just make or post or let everybody know when its reasy, cause I have the money saved right now, so when you guys are done, I'll buy it immediately
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Joe E.
Dodge Dakota
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3/05/2003
13:50:08
| RE: 3.9 4
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Ill be looken into it too. Sounds like a great kit. Espically if I could keep or swap in a mag V6. Take your time Ron, and do it right the first time. AS you see, there are plenty of us who are on the wagon now. Later.
Joe E.
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mnkybrs
GenIII
3/05/2003
16:14:12
| RE: 3.9 4
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I would be very interested if the quality and price are good. I would love to give the old 3.9 a big boost of power. Will it have any affect on the computer?
98 Dakota Sport C/C V6
Deep Amethist
Clear corners
Home Brew Intake Custom Made Grille
3923's DynoMax 17748
ASA TRS Wheels on 235/55R16 Kumho Tires
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00dak
Dodge Dakota
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3/06/2003
09:15:39
|  RE: 3.9 4
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What kind of power gains would we be talking about here?
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.alex.
Dodge Dakota
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3/06/2003
10:55:12
| RE: 3.9 4
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Think in terms of a V-6 that makes the same power as a stock 5.9L motor. But gets 22 mpg.....
Sounds kinda nice, eh?
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Ron
Dodge Dakota
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3/06/2003
11:15:09
| RE: 3.9 4
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I'm gonna estimate the power gains a little conservatively........but an additional 35-45 hp
seems reasonable.........
The biggest benefit I can see is the additional displacement of 50 c.i., and the rev potential
should make the engine very fast reving.
I talked to the owner of the shop where I take my
machine work to...and he believes the engine will rev very quickly and with the correct cam may sound like a rotary type engine on steroids!
we are going to be waiting until the co that has the CNC milling machine fills the order they are currently contracted for finishes, then they'll begin the task of programing the specs and measurements to produce the prototype.
I feel we are at least several months away till I'm able to procede with the project.
"Grandaddy always said good things come to those who wait"..........AND I'm just as anxious to see this as you guy's!
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.alex.
Dodge Dakota
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3/06/2003
13:21:15
| RE: 3.9 4
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Oh... let me clarify my last post....
Think in terms of a V-6 that makes the power of a 5.9 motor, but still weighs only as much as a V-6. Ron may be correct in the 35-45 hp assessment, but while you're having a motor taken apart and machined out to a 4.7L V-6.... why not go ahead and have the heads worked on, and why not add some JBA headers, and why not go ahead and massage the intake manifold a little bit?
So, then we are getting into the 50-75 hp range (or better).
So for some quick math: 175+75=250 hp with GOBS of torque just dripping out of the tail pipe... and still light-weight so it will handle.
Not to mention, if you were to build a Gen II truck with this stroker V-6.... you could supercharge it, lower it, and give it some big shoes..... next thing you know, it's an auto-crosser from HELL!! WooHoo!!!!
Makes me wonder why I even mess with my 4.7 CLub Cab...
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waterpolo
GenIII
3/06/2003
13:28:29
| RE: 3.9 4
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couldn't you add a super charger onto the Stroked 3.9 anyways? If you stroke the engine it doens't change the compression ratio does it? If it doesn't then it should be fine because i know of guys running 3.9s with super chargers already.
I guess then you would have to worry about your tranny holding up. Does anybody know how much horsepower and torque the ax-15 (5-speed) tranny can hold up to?
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dodgeboy
Dodge Dakota
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3/06/2003
14:27:59
| RE: 3.9 4
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well..I have a fairly decently built v6..with a 100shot on top of it and the ax-15 has been holding up so far. I'm taking it to the track soon with slicks on it, so we will see how that goes..
-greg
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Ron
Dodge Dakota
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3/06/2003
15:51:51
| RE: 3.9 4
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Check my personal website www.scsilverdak.com, click on my "Drag truk" profile.......you'll see exactly the package I'm gonna test this kit on once it's ready................
I've got a set ported heads, intake and cam planned as well......and a 50hp shot of Nos
to boot!!!
How about a high 14 sec 4wd DAKOTA?..MAYBE QUICKER!!!
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87DakBuilder
Dodge Dakota
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3/07/2003
06:17:14
| RE: 3.9 4
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Hey Alex,
What you just mentioned is exactly what I intend on doing. Currently I'm sending my heads out to KRC to have 1.6 rollers installed, along with the 2.02 rt values and springs. I've also ordered the KRC V6 cam, and I'm on the fence about flashing my existing PCM, or getting the Mopar performance PCM. I'm looking into a powerdyne S/C with 10 ibs pulleys, and the Stroker Kit is a done deal once it is finished. My just in case I need to whoomp some A$$ is the 150 nozzle kit. And all of that is hooked up to an AX 12 Gen I Body that has been dropped on twenties, and air bags. I'm hoping for about 315 hp. Once the kit comes out, I'll have it dynoed and fill all in on the results.
87DakBuilder
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Ron
Dodge Dakota
JOIN HERE
3/07/2003
09:06:35
| RE: 3.9 4
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HEY 87DAKBUILDER!
We at Muscletrucks.net are looking for a willing participant to help us develope a ATI Procharger
kit for the Magnum v6 Dak's!
I'd also recommend that you use the KRC 206,and have it ground on a 114LSA,it won't confuse the PCM with a low vac signal, and it'll idle smoother.
Marty can do any cam profile in either v8 or v6
camshafts.
Also if you wind up going with the Powerdyne like I have, e-mail me off list I have a few tips I can share to get the most out of that blower.
e-mail: scsilverdak@hotmail.com
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Ron
Dodge Dakota
JOIN HERE
3/07/2003
09:09:51
| RE: 3.9 4
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HEY 87DAKBUILDER!
We at Muscletrucks.net are looking for a willing participant to help us develope a ATI Procharger
kit for the Magnum v6 Dak's!
I'd also recommend that you use the KRC 206,and have it ground on a 114LSA,it won't confuse the PCM with a low vac signal, and it'll idle smoother.
Marty can do any cam profile in either v8 or v6
camshafts.
Also if you wind up going with the Powerdyne like I have, e-mail me off list I have a few tips I can share to get the most out of that blower.
e-mail: scsilverdak@hotmail.com
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