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Unread 02-12-2009, 06:24 PM   #1
Dantheshan
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4.0 HO Stock. Horsepower?

hey i did a little search, but didnt try to hard to find it, and got no luck. so i decided this was easier. Just wanna know how much horsepower the 4.0 HO engine has. Its all stock. And a 94 if that makes a difference.

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Unread 02-12-2009, 06:28 PM   #2
93jeepyj
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as far as I know its 190 hp
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Unread 02-12-2009, 06:31 PM   #3
Dantheshan
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ok thanks for the info!
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Unread 02-12-2009, 06:33 PM   #4
MAX_Xj
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ya thats what it says in my manual, but i dont have the HO so i dont know whats included
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Unread 02-12-2009, 08:19 PM   #5
ionakana
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Quote:
Originally Posted by greenjeepmax View Post
ya thats what it says in my manual, but i dont have the HO so i dont know whats included

if your 4.0 is the engine that came in your 94 wrangler then you have the HO.
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Unread 02-12-2009, 08:24 PM   #6
MAX_Xj
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Quote:
Originally Posted by ionakana View Post
if your 4.0 is the engine that came in your 94 wrangler then you have the HO.
oh good to know my buddy has the high output tags and i do not so i thought the might has been different cams or injectors

but now i know thanks
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Unread 02-12-2009, 08:26 PM   #7
Cross
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all 91' and newer YJ's have the HO.
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Unread 02-12-2009, 08:29 PM   #8
ZeroGravity
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Originally Posted by 93jeepyj View Post
as far as I know its 190 hp
I searched this a couple weeks ago. An article said the I6 engines had 180 stock. I imagine after 15+ years, it's dropped a bit.
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Unread 02-12-2009, 08:30 PM   #9
Old4X
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That HP figure is @ 4750 RPM. It also puts out 220 ft/lbs of torque @ 4000rpms.

Those puny carbed 258s only net 112hp (@3200 rpms) but they put out 220 ft/lbs @ 2000 rpms!

The 258 is really a 232 stroker, and it suits the jeep quite well. If my engine ever saw 4500 rpms, I would be picking parts up off the street.
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Unread 02-12-2009, 08:32 PM   #10
01xjRubidog
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with an HO youll have around 140 rwhp from the dyno sheets ive seen depending on tire size.
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