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Old 03-18-2008, 08:14 AM   #1
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Performance parts for 2.5

I'm getting ready to rebuild my 4 banger in my 94 YJ. I was wondering if anyone knows of places that sell performance upgrades to the engine. Internals like a better cam or forged pistons etc. Any help would be appreciated.

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Old 03-18-2008, 04:58 PM   #2
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This is a nifty bit of upgrade for your 4 banger.

http://www.turnkeyenginesupply.com/or_70630.htm

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Old 03-18-2008, 05:05 PM   #3
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In other words... while rebuilding it, add 4 more cylinders.
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Old 03-18-2008, 05:25 PM   #4
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rebuild the 4 cylinder?????

there is no replacement for displacement.
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Old 03-18-2008, 07:31 PM   #5
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there is no replacement for displacement.
at leat 2
take it from an ex 4 banger owner, no replacement for displacement. if you got a blown 2.5, instead of spending money on performance parts, swap in a different motor, all the performance parts in the world wouldn't make it run as good as a stock 4.0
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Old 03-18-2008, 08:19 PM   #6
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at leat 2
take it from an ex 4 banger owner, no replacement for displacement. if you got a blown 2.5, instead of spending money on performance parts, swap in a different motor, all the performance parts in the world wouldn't make it run as good as a big inch v8

fixed
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Old 03-18-2008, 08:50 PM   #7
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baby steps
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Old 03-18-2008, 08:53 PM   #8
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fixed
that was pretty good mrclifford. it took me a second to figure out what happened there
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Old 03-18-2008, 10:01 PM   #9
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This is a nifty bit of upgrade for your 4 banger.

http://www.turnkeyenginesupply.com/or_70630.htm
Why not this one? 770 HP, 730 Ft. Lbs.
http://www.turnkeyenginesupply.com/or_60770.htm

Plus, it's cheaper.
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Old 03-18-2008, 10:04 PM   #10
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Why not this one? 770 HP, 730 Ft. Lbs.
http://www.turnkeyenginesupply.com/or_60770.htm

Plus, it's cheaper.
LS7 > LS2.
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Old 03-19-2008, 12:38 AM   #11
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LS7 > LS2.
X 2


the LS2 has twin turbos on it....Thrown twin turbos on that LS7 and you can have fun shitting your pants everytime you hit the throttle
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Old 03-19-2008, 08:52 AM   #12
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I don't disagree with anyone on the fact that a 6 or 8 cyl would be a big improvement. But I'm not looking for a big improvement on power, just want to liven it up a bit. Things like an air intake and exhaust components are easy to find. However, I thought I'd ask to see if anyone knew of a supplier for internal parts. If not that's fine. I like my 4 banger. I've put 170,000+ miles on it with very few problems. It's just time for a rebuild. If I was building up a project jeep, a motor upgrade would be on the top of the list. This one's just my daily driver, and I put 100+ miles a day back and forth to work on it, I like the gas milage of a 4cyl.
Anyway, if any can help, thanks.
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Old 03-20-2008, 01:49 PM   #13
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performance parts

go to summitracing.com and search for parts by vehicle and then go by engine. They have some parts there. check it out.

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