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lanulos89

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im done
« on: October 17, 2006, 01:00:21 PM »
sorry to say this but come spring time the fourbanger motor is coming out.  In its place ill be bolting in a v6 4.3l vortec.  Nothing is worng with it, its just ways to slugish for me.  Also im gonna rip the three speed tranny out and put a four speed in its place.  Im tired of the slow car,  i would bolt a small block in but i dont wanna completly kill myself with gas millege.
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SMC4WD

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im done
« Reply #1 on: October 17, 2006, 01:29:37 PM »
Good luck with that, and keep us posted...  But please..  It's a Jeep,

Never say, I'm done ;)
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Tall Boy

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im done
« Reply #2 on: October 17, 2006, 04:47:55 PM »
DOH!!! THE THREE SPEED SUCKS!!!  I'VE FELT LIKE THAT FOR SIX YEARS NOW. BUT I'M STUCK.
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Offline chardrc

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im done
« Reply #3 on: October 17, 2006, 06:37:26 PM »
sweet.. ive wanted to do that ever since i got my jeep.. i even have the motor in my garage and a trany i could use.. but my dad wants to use the mootr and trany in another jeep... keep me posted so i can hopefully do this in the future..
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1990 YJ 4cly, ax5, 2.5 inch BDS lift, 31 MTr\'s,  Powertrax-lockers all around, track-bars removed, boomerang shackles, warn m8000 winch, electric fan. [sold but not forgotten]

2007 jk Rubicon 2dr

Offline Jeffy

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im done
« Reply #4 on: October 17, 2006, 09:19:20 PM »
One of my friends had two YJ's with 4.3L's.  One he installed from a '96 Extreme and the other he bougth for his son.  He keeps saying if he had to do over, he would have done a turbo or SC.  It took him a while to get all of it in although he went with a 4L60e and a Ford D20 while he was at it.  He also has a Taco rear end to go with it.

I'm still thinking a small turbodiesel would be the way to go.  Tons of torque, good gas mileage and fairly compact.

4.3L's aren't that great on gas.  I think the '96 I occasionaly drive gets anywere from 16-18mpg.  That's what my Jeep gets and that's not being easy on the go pedal either.  Although it's able to do 75-90 up hills easily.

I'd also check out a 3800 series and perhaps the 3800SC which is really nice.  In the early day's of the forum, everyone was wanting to do a 3.8L swap.  Even teh 3.4 or 3.6L would be a good engine.
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Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

Offline Jeffy

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im done
« Reply #5 on: October 18, 2006, 12:38:31 PM »
I thought of another engine that might be worth looking into.  The 2.2L Ecotec.  There is a N/A version with 177hp and a Turbo version with something around 260hp.  The engine is attached to an Aisin 5-speed.  I'm not certain which AX it uses but my guess would be an AX-5 or AX-15.  The Supra used an AX-15...  Although these are ODBII engines so that's a bit more work.
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Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

Jesse-James

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im done
« Reply #6 on: October 20, 2006, 03:01:58 AM »
Quote from: "Jeffy"

4.3L's aren't that great on gas.  I think the '96 I occasionaly drive gets anywere from 16-18mpg.  


My 97 AWD Astro gets 21 hwy 19 city and that's in a much heavier vehicle. I would think it would be better in a Jeep.
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lanulos89

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im done
« Reply #7 on: October 20, 2006, 04:41:18 AM »
that exactly what i was thinking, my mom gets like 20 in her blazer so i figure maybe like 22.  Im only getting like 20 no so if my gas millage doesn't get better, at least it shouldnt cahnge, and ill have lots more power.
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Dare2BSquare

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im done
« Reply #8 on: October 20, 2006, 05:36:10 PM »
Why do you need 2mpg more mileage, and how much more power? Check first to see how much your outlay in cash to change the engine will pay back. It could be that you will put more in than you will ever get out.
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lanulos89

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im done
« Reply #9 on: October 20, 2006, 11:00:48 PM »
it will be 123hp 2.5l  vs a 190hp 4.3l.  Im mainly doing it for the power.  Also if all goes well im gonna put in the trans and t-case in it too.
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Offline Jeffy

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im done
« Reply #10 on: October 21, 2006, 01:03:19 AM »
Quote from: "lanulos89"
it will be 123hp 2.5l  vs a 190hp 4.3l.  Im mainly doing it for the power.  Also if all goes well im gonna put in the trans and t-case in it too.


You're going to have to swap transmissions.  You could use an AX-5 but it's highly not recommended.  With the cost of adapters and such, it would be cheaper to use a matching transmission, be it NV3500 or 4L60E.  You'd also need to adapt the transfer case to accept the 231J or else use a 231C and swap out the output shaft.  Or you could upgrade to a 241 or 242 or whatever.

But a complete unit, engine, tranny, transfer case if you can, It will save $$$ and a whole lot of time.
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Youtube Channel: https://www.youtube.com/channel/UCZNlr60GXH5OlKIFrT7P6mg
My Jeep: http://4bangerjp.com/forums/index.php?topic=2783.0
"If the motor car were invented today, there is absolutely no way that any government in the world would let normal members of the public drive one."

lanulos89

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im done
« Reply #11 on: October 21, 2006, 05:44:27 AM »
yea i already found on anouther forum 500 for all three, which isn't bad at all i don't think.

I think that's what my friend paid for his '98 4.3L w/ 4L60e.

What year is the one you're looking at?

Make sure the PCM is not set up with the Sentury key otherwise you're going to have to get a new PCM without the Sentury key feature.

There is a semi-discussion on that in the Remote Start thread.  It would be better to have an engine without the feature then to have to bypass it somehow.
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lanulos89

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im done
« Reply #12 on: November 02, 2006, 05:16:39 PM »
okay well do to recent events, the transplant motor has changed 5.0 fom my buddies 89 gt. recent events was me sitting in class and remembered he totaled his mustang this summer, and just has it sitting there.
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