91mj97tj

They are great and you can get better leverage and still do all of those things but mostly you can have your hand flat when you wrench I think they are an engineering genius actually.

http://www.sears.com/sr/javasr/product. ... Cookie=Yes

The first 4.0 engines in 1987 had RENIX (Renault/Bendix) engine control systems, which were quite advanced for their time, but are now handicapped because there are very few scan tools which can be "plugged in" to a RENIX system for diagnosis. The Renix also used a very advanced engine knocking sensor, which allowed the computer to know if detonation was occurring, thus allowing the computer to make the appropriate changes to prevent this. The 1987 RENIX 4.0 made 173 hp (129 kW) and 220 lb-ft (298 N·m) of torque. In 1988 the 4.0 received higher flowing fuel injectors, taking output to 177 hp (132 kW) and 224 lb-ft (304 N·m) respectively. In 1991 Chrysler Corporation, then the owners of the Jeep brand, redesigned the RENIX engine control computer and raised the intake ports approximately 1/8″ for a better entry radius. Chrysler also enlarged the throttle body and redesigned the intake and exhaust manifolds for more efficiency, and the fuel injectors were once again replaced with higher flowing units. The camshaft profile was also changed. The net result of all these changes was an engine that made 190 hp (142 kW) and 225 lb-ft (305 N·m) of torque. Badging on Jeeps equipped with this engine read "4.0 Litre HIGH OUTPUT". The new cam profile combined with altered computer programming eliminated the need for an EGR valve and knock sensor, but make the engine more sensitive to alterations, especially where emissions are concerned. Small changes were made to the cylinder head for the 1995 model year. In 1996, the engine block was redesigned, and a new strengthened unit was then used. The new block made use of more webbing cast into the block, and a stud girdle for added rigidity of the crankshaft main bearings. The cylinder head was also again changed around 1998 to a lower flowing, but more emissions friendly, design. Engines installed in 1999 Grand Cherokees carried the Power Tech name, which was subsequently passed on to 4.0s in all Jeep models. Sorry kind of long also just what I think about throttle body spacer they do offer a good power increase that can be noticed and I really don't need to go into it because you can just search online from all the blogs and forum postings. Because there are not that many power performance mods you can do for the 4.0 but it is a combination of a lot of things. Best one that I have seen and pretty common on the trails here in Utah: http://www.jeepersandcreepers.com/clien ... atPath=102 I do love wrenching on things but one of them is not that engine every weekend. Junk it and go to a rolled newer 4.0 vehicle or I really like v-8 mods which I am doing a 350. Because of the cheaper aftermarket parts and the performance mods are limitless. JMO

Wow thank you I have looked at that site before but his main link must not work that is a really good and cheap upgrade no shipping either. Thanks man

Well I did go outside my scope there with saying flawed. I did mention the fact that most HO are not long time or high mileage whatever. But I do believe working on HO is much easier. So you can say the reverse the HO has many areas in which it is better than renix. Also I am not sure on this one but I am pretty sure you can not do a throttle body spacer on the renix another "flaw" or weakness. One of the easiest and best upgrades you can do.

Well I agree that it is way more fixable and maybe because most HO are not that high in mileage as the Renix but honestly my pal that I help rebuild is constantly fixing it finally he said screw it sold that and (how lucky he is) got a free 2.5L but he likes that because he is extremely cheap. But I really do not like the renix because it just makes me so mad working in a crammed engine compartment with a very flawed huge system.

I think if you can afford to get a signature loan at some Credit Union pay off all the collections and then PAY THE SIGNATURE ON TIME FOR HOWEVER LONG THE TERM!!! Then wait seven years from when had those accounts and you will have good credit again but you will have to rebuild. I did this when I was 18 as well and I work in finance. Credit counselors actually hurt your credit FYI. Go to annualcreditreport.com and get all three of your reports for free (one free a year). Then dispute the collection accounts after you pay them off. 9 times out of ten they will delete them. But hey choose not to listen me. I destroyed my credit when I was 19 started over and now I am 24 and can get approved for anything.

Also it it just sounds stupid that they have two kind of tie rods one is 1" and the other is the MONSTER 1.5" Any comments on that as well. http://rustysoffroad.com/mm5/merchant.m ... y_Code=ste http://rustysoffroad.com/mm5/merchant.m ... y_Code=ste _________________

I also think the cooling system is a bit HOKI or whatever you want to call it. They really didn't perfect it until 2001. But that is just my opinion. I have rebuilt the head on a renix Cherokee pain in the @$$ getting it to take Radiator fluid.

Ok I am thinking of getting either rusty's heavy duty tie rod but I always remember that people have had more trouble with rusty's than they are willing to admit. :mad: http://rustysoffroad.com/mm5/merchant.m ... y_Code=ste Or I am thinking of getting TNT customs tie rod and then buying some johnny joints for the ends anyone done this or do you think this is a good idea. Any advice or comments would be greatly appreciated. Cheers http://www.tntcustoms.com/webv5/xjsteering.asp http://www.currieenterprises.com/CEStor ... oints.aspx Or even now I am thinking of this: http://www.jeepin.com/features/uturn/index.asp

Maybe it is just the power that really affects me but I just barely manage to get 215 a tank. I think that is really bad because my MJ had a four popper with 4:10 and I had to fill up like maybe once every two weeks. I just feel like the lack of power is really bad and it has a header but it just can't pull those dang tires. Fifth is like down hill with wind gear :D

My TJ has 3:07's and it sucks and it doesn't do too bad with gas maybe 215 miles to a tank. But that is with 33x13.50. The power is terrible that is why I want to go to 4:56. I just don't like the uphill power is where it kills me. :cry:

91 Comanche. 2.5 L AX-5 and NP231. 4.10 gears Dana 30 front Dana 35 rear. Was two wheel drive now four wheel. Engine was rebuilt but blew it wheeling again so that is why I got a 97 TJ for a daily driver. Has 31's on it BF AT's Swapped out bench for XJ buckets kind of missing the bench now though. Not too much done so far and it is now not a DD but now pure project. For the future.... Dana 60 front and rear. OX lockers with 4.56's Drivetrain is going to be a 350 (have the engine) Need a transmission and prolly going to do Atlas II More recent going to clean it up a lot not much rust at all on the body. Planning to make my own box bed design similar to military jeeps Definately going for side mounted tire. It is quite an undertaking and a lot of if's in the future. But nothing like a money pit. :D 97 TJ SAHARA EDITION 4.0 L AX-15 NP231 4'' OF LIFT 33X13.50 TOYO OPEN COUNTRY'S MT'S HEADER, HI FLOW KOOLER WATER PUMP,CAT BACK EXHAUST, TRANSFER CASE DROP NOT TOO MUCH ELSE HAVE A SAFARI TOP AND LOVE TO DRIVE IT. NEW CLUTCH 86000 MILES ON THE TICK AS WELL NOT BAD FOR TEN YEARS OLD. The TJ is already lifted will not be a project for a long time until I have the title actually. It is has 33's so it is just an exploring rig not too much of the hard stuff I will go on with this one. Biggest swap that is going to happen in the year is 4.56 with ox lockers front and rear. Needs a new radiator soon leaks a little bit in the top corner. Also doing the shocks because of the great deal from skyjacker.