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Go Back JeepForum.com > General Technical Discussions > Engines & Drivetrain > What Can I do for more POWER on my 4banger?

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Unread 05-04-2002, 08:46 AM   #16
igofshn
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</font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by MusicMaverick:
<strong> </font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial"> No one makes a computer chip for YJ 2.5L's. </font><hr /></blockquote><font size="2" face="Verdana, Arial">Yes they do. Python makes the Venom 400 makes one. It runs around $350. An ignition kit would help a bit too. With all I mentioned, you'll be the peppiest lil' 4 banger on the block!</strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">And what? You'll have a whopping 120 HP. Don't waste your money. A 4 banger is a 4 banger. It won't get any better. It will just lighten your wallet with all the wasted mods. Either sell it and get a 6 or put the money into effective mods for the trail. 4 bangers are great on the trail,just not on the highway.

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Unread 05-04-2002, 10:18 PM   #17
MusicMaverick
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Um.... Stock 2.5's made 90' and newer or 91' and newer (i forget which) come 120hp stock.....

And it CLAIMS to increase power as much as 25% through 1000-5000RPM range. How true it actually is I don't know. But the way I see it, it is a simple 4 wire connection. If I didnt feel any increase. I'd pull it out, put it back in the box, send it back and demand a refund.
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Unread 05-05-2002, 08:01 AM   #18
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I'll let you know how the Python does. I'm putting one in along with a Borla header and exhaust, 4.0 throttle body and spacer. I'll test with the Python off and on and post the result. I've read both good and bad reviews of it, unfortunately the bad reviews seem to come from truck owners. We'll see, at least it's easy to remove.
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Unread 05-09-2002, 12:33 AM   #19
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the regear is the way to go with larger tires...the whole thing about mechanical advantage.i plan on going straight to 5.89's when i do my soa.should work well with 35's...btw, i am keeping the 4 banger just to piss off the high horsepower crowd!
most of your power increase will come from opening up your intake.the exhaust will only work good with a lot of other pieces in place.a reworked computer also will work much better with a lot of other mods...a cam would help a lot.(be careful,it might not pass emmisions if you have to worry about that)i personally wouldn't waste my money on a computer upgrade.the thing the four cylinder has going for it is it small,light,and relatively torquey for its size.i saw a really interesting mod that could take advantage of that: a heavier flywheel.(tri-county gear's jeep for arca events.)that seems to me that a heavier flywheel would give you more bang for your buck.just food for thought... <img border="0" title="" alt="[Wink]" src="wink.gif" />
for the four cylinder sucks crowd...you can get close to 300 hp out of a four banger with the right mods!wouldn't be emissions legal,but...
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