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Unread 08-14-2003, 04:57 PM   #1
KEATSKI
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Jeep Tj Supercharger

Have a "97" with the 4.0 liter engine. Have any of you put on a Supercharger or Turbo on this engine. Saw an article in a magazine and couldn't reach the manufacturer. Any thought on it? What is the cost, can do yourself and is it worth it?

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Unread 08-14-2003, 05:05 PM   #2
ace2222
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Is it worth it depends .. I have been looking in to the avenger system!!!! I don't know if you can install it yourself and I think I was given a price of 3300 for the avenger


Quote:
Originally Posted by KEATSKI
Have a "97" with the 4.0 liter engine. Have any of you put on a Supercharger or Turbo on this engine. Saw an article in a magazine and couldn't reach the manufacturer. Any thought on it? What is the cost, can do yourself and is it worth it?
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Unread 08-14-2003, 05:27 PM   #3
BearClaw
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If you just off road, you don't need any of that. A nice set of gears will give you all the power you'll need.
If you want to embarrass some fixed up import or whatever you might have next to you under a red light... here are some available for a TJ


http://www.off-road.com/jeep/reviews...rxengineering/

http://www.4x4wire.com/jeep/news/avenger01/

http://www.vincihiperformance.com/SUVMAINPAGE.HTML

just few...I'm sure you'll find more with if you just do a search for it.


I'm thinking about the first one, factor x engineering
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Unread 08-14-2003, 06:46 PM   #4
Jerry Bransford
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For that kind of money, I'd go for a nice Chevy V8 350 any day.
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Unread 08-15-2003, 07:56 AM   #5
GoTopless
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Quote:
Originally Posted by KEATSKI
Have a "97" with the 4.0 liter engine. Have any of you put on a Supercharger or Turbo on this engine. Saw an article in a magazine and couldn't reach the manufacturer. Any thought on it? What is the cost, can do yourself and is it worth it?
why would you want to do that? Jeeps are not made for speed......look at it, its a big box! Get a honda
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Unread 08-15-2003, 08:23 AM   #6
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Agree with Jerry...if you're going to drop that kind of coin, and you're trying to get raw power, you'd be better off with a crate motor 350 from Summit or something. It's probably more work, but the 350 is the has more parts available for juicing it up than any other motor out there, and it's a great motor.

I also agree, though, it's a waste of money, imho, just seems like you're trying to get your TJ to do something it wasn't meant to...buy an old Chevelle, Nova, or something like that for going fast....

Or, come by, drive my 2.5L for a week and then you'll feel better about your 4.0L.
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Unread 08-15-2003, 08:26 AM   #7
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Quote:
Originally Posted by kdavis

I also agree, though, it's a waste of money, imho, just seems like you're trying to get your TJ to do something it wasn't meant to...buy an old Chevelle, Nova, or something like that for going fast....
<dreams of owning a nova or chevelle>
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Unread 08-15-2003, 08:33 AM   #8
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I've had 2 1967 Chevelle's that I did frame-offs on...did the same motor set up on both...350ci, ~375HP....ahhhh, I can still see the "chirp" marks from the shift points down my little street....

<wake up>

I'm old, I guess, the 4cyc does it just fine for me now....

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Unread 08-15-2003, 09:17 AM   #9
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Quote:
Originally Posted by GoTopless
why would you want to do that? Jeeps are not made for speed......look at it, its a big box! Get a honda
*This just in*
Hondas are not fast.

I sold my 12 sec. camaro to pay for my lift and tires and such. I miss the power of that car... it was getting close to 400 lbs of torque.
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Unread 08-15-2003, 09:23 AM   #10
GoTopless
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Quote:
Originally Posted by SlinkyTJ
*This just in*
Hondas are not fast.
i wouldnt know......im not into the ricers, everyone one around here seems to think they are fast
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Unread 08-15-2003, 09:45 AM   #11
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Quote:
Originally Posted by BearClaw
I'm thinking about the first one, factor x engineering
Unless you are planning on drag racing, I wouldn't get a centrifugal type blower. A roots blower offers more of the type of power you would need, full boost at a low RPM and a flat torque curve all the way across the entire RPM range. This would make it alot easier to turn those bigger tires.
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Unread 08-15-2003, 10:19 AM   #12
AggieTJ
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Let me throw in my two cents:

A supercharger is something I wouldn't disagree with. With bigger tires, you'll lose highway passing power. There are some SLOW people out there who don't move over and hold up traffic. If your power suffers enough with the addition of bigger tires, it might be helpful to install a supercharger for those blasts past slow-folks and 18-wheelers.

I'd like to have my Jeep drivable to the trail, and not just a trailer rig, so extra power is something I'll consider in the future when I lift my rig. In stock form, the Wrangler has some nice get up and go. A better exhaust might help a little as well.

Don't laugh, but has anyone ever considered a nitrous system for those quick highway blasts?
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Unread 08-15-2003, 10:23 AM   #13
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Quote:
Originally Posted by AggieTJ
Let me throw in my two cents:

A supercharger is something I wouldn't disagree with. With bigger tires, you'll lose highway passing power. There are some SLOW people out there who don't move over and hold up traffic. If your power suffers enough with the addition of bigger tires, it might be helpful to install a supercharger for those blasts past slow-folks and 18-wheelers.

I'd like to have my Jeep drivable to the trail, and not just a trailer rig, so extra power is something I'll consider in the future when I lift my rig. In stock form, the Wrangler has some nice get up and go. A better exhaust might help a little as well.

Don't laugh, but has anyone ever considered a nitrous system for those quick highway blasts?
Let's see, Supercharger = $4000. Gears = $1200. You can do the same thing with new gears. I'd do gears instead.
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Unread 08-15-2003, 10:29 AM   #14
ian-X
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I disagree with jerry on this. one of the major advantages of running a centrifugal blower is that you can drive your vehicle normally all day long without using much boost, but when you do need it it'll be there. unlike a 350, it's going to be a gas hog no matter what, with your 4.0L low RPM's will keep that in check. so if you decide to tow, or need more power crawling in 4-low, you put it in a lower gear and get a dramatic torque boost.

also, another major concern is weight. a 350 weighs more so the swap out will not only be the actual fitment of the motor but a replacement of your front springs(maybe just a spacer).

and as Owen says, what good what a thread be with some pictures. this is what I was running on my 5.9L dakota before I sold it. stock the motor was 255hp(crank), with the blower it was 350hp(crank). after a few more mods and the blower is dyno'd 350 at the rear wheels.



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Last edited by ian-X; 08-15-2003 at 11:40 AM..
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Unread 08-15-2003, 10:49 AM   #15
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Would that be a Powerdyne SC ian-X?
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