Project Magnum YJ - Page 2 - JeepForum.com

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post #16 of 441 Old 07-27-2010, 04:29 PM
YJ-95
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Originally Posted by bmgadg View Post
New progress....



Got the SYE installed on my np231 this weekend. Wasn't too bad except I had to shorten the rod about and inch, in the instructions it said that was common for 88-89 models
From where you got your front output yoke? it's work with duble cardan shaft right? how much you got it?

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post #17 of 441 Old 07-27-2010, 05:19 PM
Mean Max
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Originally Posted by YJ-95 View Post
From where you got your front output yoke? it's work with duble cardan shaft right? how much you got it?
NP231s from XJs used a double cardan front shaft. A front yoke from one of those is a straight swap.

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No one here knows what they are talking about. You should try Pirate 4x4 they will be happy to help you.

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post #18 of 441 Old 07-28-2010, 08:53 AM Thread Starter
bmgadg
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Quote:
Originally Posted by Mean Max View Post
NP231s from XJs used a double cardan front shaft. A front yoke from one of those is a straight swap.

Max
You are correct sir! Came off an XJ.
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post #19 of 441 Old 07-28-2010, 08:57 AM Thread Starter
bmgadg
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Originally Posted by MoparFreak69 View Post
Here is the rear of the Grand Cherokee fuel rail I installed during my swap. The blueish circle is the inlet and the red circle is the outlet. The outlet hose connected right to my QD on the Jeeps return hard line. The supply line was larger so I had to connect the old supply hose to the new supply hose with a double barbed fitting.



As far as fuel pump, its really dependent on setup. I was running an in-tank TJ 4.0 fuel pump and was having issues, but that was partly because it was mounted up strangely and would lost prime if I cornered too hard. I just went with the external because it was rated what I needed and was the same cost as an in tank. I say go with what you got and if you have driveability issues then go from there.
Sweet, thanks again for your help!
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post #20 of 441 Old 07-28-2010, 11:40 AM
YJ-95
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Quote:
Originally Posted by Mean Max View Post
NP231s from XJs used a double cardan front shaft. A front yoke from one of those is a straight swap.

Max
THANX
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post #21 of 441 Old 07-28-2010, 12:34 PM
remmons
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V8 power...

Too bad I am most of the way through my 4.0L swap. Otherwise, I would have entertained the V8 thought.

Robert.
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post #22 of 441 Old 07-29-2010, 08:38 PM
MoparFreak69
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V8 power...
Lets not forget the importants here. Not only do you get the power, you get the SOUND and better fuel mileage (well, if you can keep your foot out of it lol)!
My only regret, not doing it sooner!

90 YJ 5.2 Magnum, AX-15, 231 SYE'd
D44 front, welded/trussed AMC20HD rear. 4.56 gears soonish.
Western 6 lug aluminum wheels, with 35x12.50x15 Wrangler MTRs
MYj Build
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post #23 of 441 Old 08-05-2010, 10:58 AM
PlatinumNiner
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I have a return style fuel rail if your interested. Send me a PM we will work something out. Id also advise you pull the intake manifold and replace the plenum gasket before you put the motor in. Im sure it's shot because they all are. Defect in design. 5.2 and 5.9 use the same manifolds and have the same problems
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post #24 of 441 Old 08-05-2010, 11:43 AM Thread Starter
bmgadg
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Originally Posted by PlatinumNiner View Post
I have a return style fuel rail if your interested. Send me a PM we will work something out. Id also advise you pull the intake manifold and replace the plenum gasket before you put the motor in. Im sure it's shot because they all are. Defect in design. 5.2 and 5.9 use the same manifolds and have the same problems
Yeah I know about the plenum gasket, definitely replacing that. Sending pm now...
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post #25 of 441 Old 08-05-2010, 11:57 AM
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Great 5.2 5.9 injector upgrade right here also. Have them in my 5.9 with a modded manifold and im very happy.

Buy Ford Racing Parts - Ford Racing 24lb Fuel Injector Set

Here's a great place for parts also. You must replace the intake manifold bolts they are torque to yield.

CHICAGO CONNECTION, Your High Performance Parts & Accessory Shop

If your interested in learning A LOT about the 5.2 5.9 check out this forum. Lots of guys doing custom mods and kegger upgrades. Pretty much free horsepower. You can do a lot with the stock kegger (intake manifold) to help horsepower and torque as well as solve problems the dealer never thought about. Like the fact the injector ports are made wrong and the fuel hits the manifold before ever getting into the cylinder. Here's a link to my build you should seriously consider doing everything i did.

www.TheSpeedFreaks.net

My build is here at
http://www.thespeedfreaks.net/showth...lean+cut+paint

Good info here as well
http://www.thespeedfreaks.net/showth...light=deshroud

http://dodgeforum.com/forum/2nd-gen-...e-mod-diy.html
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post #26 of 441 Old 08-05-2010, 12:23 PM Thread Starter
bmgadg
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Awesome links, I'm going to check that out. I have a set of blue top ford injectors already, got them on ebay then found out they only have the single hole Oh well guess, they'll have to do for now.
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post #27 of 441 Old 08-05-2010, 12:29 PM
PlatinumNiner
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Blue top ford injectors are 24 lbs so they will work great. Deshroud the injector ports that makes a big difference in the spray path. What year did you say the motor was?
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post #28 of 441 Old 08-05-2010, 12:55 PM Thread Starter
bmgadg
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Originally Posted by PlatinumNiner View Post
Blue top ford injectors are 24 lbs so they will work great. Deshroud the injector ports that makes a big difference in the spray path. What year did you say the motor was?
Yep blue top 24lb is what I have, motor is a 96, but I'm going to run it off an obd1 computer.
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post #29 of 441 Old 08-05-2010, 02:42 PM
PlatinumNiner
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Shouldnt be a problem may just have a different sensor here or there.
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post #30 of 441 Old 08-05-2010, 05:52 PM Thread Starter
bmgadg
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Starter question guys... There's a different part number for a Ram 5.9 starter and a Dakota 3.9 starter. I have the Dakota 3.9 bellhousing and the starter bolts into it, so I assume that's the only one that will bolt into it. I just worry about it's starting power and if it will line up with the teeth on the 5.9 flywheel. Any of you guys that have done the mopar swap have any advice?
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