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First off, let me state what my JGW does. This is my SUV, I use it as if it were a brand new Grand Cherokee or Explorer. I haul, drive, tow, travel, whatever in this car. It is not an offroad exclusive rig, so most of the work I do is to make it a more reliable, comfortable, but still fully capable vehicle.
When I got the Jeep it had a wasting away exhaust system, which I patched and bandaided along since I needed this vehicle to be a parts hauler for other projects that were taking priority. The rot and rust has come to a head and needed to be addressed last week.
I purchased the following (part numbers in brackets):
Walker Stock replacement Y-pipe (40407)
Walker Stock replacement Tailpipe (46537)
Walker 2.5 Catalytic converter (15038)
2.5 Borla ProXS muffler (40659)
Dynomax SS Exhaust tip (36473)
2.5" Lap clamp (SUM-692250)
Straight 2.5" Pipe (on hand)
Since I had to take the Y Pipe off, I had a few things to address. The first, and easiest being the heat riser. I removed the riser, removed the butterfly and rod, drilled and threaded the remaining holes and put in bolts coated with copper RTV. Done.
The second portion is where I decide to go off on what seemed like a rational tangent for me. The Y-pipe is off and brand new - no better time to put in an O2 bung, which means I should just bite the bullet and go EFI.
I got the exhaust on and squared away, sounds great and will be even better once we get past the brand new point. I welded pipe onto the cat, both sides, slip fit into the Y and clamped on muffler to cat, and muffler to tailpipe. Finally, the exhaust tip is clamped on giving me a very modular system for future changes.
While I was under there, I noticed my shift bushings could all be replaced so I paused to take care of that with Dorman Help! bushing kits (14041)
So am I really going to put all the time and effort into fuel injecting? I have a newer carb and most of the time it works well, although my wife doesn't like to drive it. Eh, yeah lets inject it.
I purchased the following (part numbers in brackets):
Performance Fuel Injection Systems TBI Kit (AMC360)
Meyle Fuel Filter (3141332109)
5/16 Fuel hose
3/8 Fuel hose
Coil bracket (to hold pump)
Random fittings and clamps
(DISCLAIMER)
Before anybody takes my commentary the wrong way, I would like to state that the PFISYS kit is the most affordable 'bolt-on' kit you can buy from my limited research. The kit as received is done very well and meets or exceeds ALL expectations at this price point. All of the changes that I have made to it are for my own personal needs or wants and does not reflect the quality of the kit (for the most part, ill get to that later). I just like things being done a certain way so you may see me undoing some of the work and changing it, especially on the harness, before using it. Again, none of this reflects the kit, I would buy it again.
I would also like to add that the way I do things, is not necessarily the way anyone else should it or even the right way whatsoever.
(/DISCLAIMER)
Component review:
Modified Distributor. As received, it did not move freely. Taking off the cap and rotor I can see ground off metal, a big chunk actually, binding the hall effect trigger and stuck to the magnet. I fished that out and cleaned up some other random "junk". This appears to be from where the flyweights were welded and ground. A chunk must have jostled and lodged during shipping.
There was also some junk in the ports of the reman'ed TBI. You can see some of it on the end of this threaded rod that I put into one of the ports. After seeing this I flushed teh whole unit and cleaned with bore brushes.
Grime and grease, not a metal issue.
Another minor annoyance, the adapter was machined with tapered seat fasteners, however cap screws were supplied. These cap screws do not have much purchase into the manifold so they were not used.
ECU. Nice work here, clean, seal is good, prom labeled and inserted properly. Does not come with any mounting hardware
Wiring Harness. Good solid connections, well laid out, everything labeled, terminations done properly, good solder joints where applicable. I didn't care for the electrical tape on the ends and some of the terminations. I had modified some of those.
I did have to make an extension for the O2 sensor, so I just made a plug in style extension so it's easily removed or modified.
Starting point
TBI installed
Fuel pump prep, the filter goes in top of the assembly. I used a coil bracket to hold the pump so I could add some additional isolation by the way of a cut apart silicone coupler. I did not like the way the bracket that came with it only covered half the pump and with very little isolation.
Fuel lines
Making some connections
Finished install
MIL
And what the day long affair did to my shop. It took about 12 hours start to finish with the obvious store runs and a couple meal brakes for good measure.
Since this has been covered many times I just did the highlights. If anyone wants any specific detail, let me know. I have a great deal of pictures!
Runs fantastic, had some minor tweaking to do with vac lines, timing, and misc adjustment but it fired right up after I got it primed. So now the only things left non-functional are dome lights and AC! Yay for me!
Big thanks to my buddy Ryan for the company and handling the laying on hard concrete so I don't have to type work
When I got the Jeep it had a wasting away exhaust system, which I patched and bandaided along since I needed this vehicle to be a parts hauler for other projects that were taking priority. The rot and rust has come to a head and needed to be addressed last week.
I purchased the following (part numbers in brackets):
Walker Stock replacement Y-pipe (40407)
Walker Stock replacement Tailpipe (46537)
Walker 2.5 Catalytic converter (15038)
2.5 Borla ProXS muffler (40659)
Dynomax SS Exhaust tip (36473)
2.5" Lap clamp (SUM-692250)
Straight 2.5" Pipe (on hand)
Since I had to take the Y Pipe off, I had a few things to address. The first, and easiest being the heat riser. I removed the riser, removed the butterfly and rod, drilled and threaded the remaining holes and put in bolts coated with copper RTV. Done.
The second portion is where I decide to go off on what seemed like a rational tangent for me. The Y-pipe is off and brand new - no better time to put in an O2 bung, which means I should just bite the bullet and go EFI.
I got the exhaust on and squared away, sounds great and will be even better once we get past the brand new point. I welded pipe onto the cat, both sides, slip fit into the Y and clamped on muffler to cat, and muffler to tailpipe. Finally, the exhaust tip is clamped on giving me a very modular system for future changes.
While I was under there, I noticed my shift bushings could all be replaced so I paused to take care of that with Dorman Help! bushing kits (14041)
So am I really going to put all the time and effort into fuel injecting? I have a newer carb and most of the time it works well, although my wife doesn't like to drive it. Eh, yeah lets inject it.
I purchased the following (part numbers in brackets):
Performance Fuel Injection Systems TBI Kit (AMC360)
Meyle Fuel Filter (3141332109)
5/16 Fuel hose
3/8 Fuel hose
Coil bracket (to hold pump)
Random fittings and clamps
(DISCLAIMER)
Before anybody takes my commentary the wrong way, I would like to state that the PFISYS kit is the most affordable 'bolt-on' kit you can buy from my limited research. The kit as received is done very well and meets or exceeds ALL expectations at this price point. All of the changes that I have made to it are for my own personal needs or wants and does not reflect the quality of the kit (for the most part, ill get to that later). I just like things being done a certain way so you may see me undoing some of the work and changing it, especially on the harness, before using it. Again, none of this reflects the kit, I would buy it again.
I would also like to add that the way I do things, is not necessarily the way anyone else should it or even the right way whatsoever.
(/DISCLAIMER)
Component review:
Modified Distributor. As received, it did not move freely. Taking off the cap and rotor I can see ground off metal, a big chunk actually, binding the hall effect trigger and stuck to the magnet. I fished that out and cleaned up some other random "junk". This appears to be from where the flyweights were welded and ground. A chunk must have jostled and lodged during shipping.
There was also some junk in the ports of the reman'ed TBI. You can see some of it on the end of this threaded rod that I put into one of the ports. After seeing this I flushed teh whole unit and cleaned with bore brushes.
Grime and grease, not a metal issue.
Another minor annoyance, the adapter was machined with tapered seat fasteners, however cap screws were supplied. These cap screws do not have much purchase into the manifold so they were not used.
ECU. Nice work here, clean, seal is good, prom labeled and inserted properly. Does not come with any mounting hardware
Wiring Harness. Good solid connections, well laid out, everything labeled, terminations done properly, good solder joints where applicable. I didn't care for the electrical tape on the ends and some of the terminations. I had modified some of those.
I did have to make an extension for the O2 sensor, so I just made a plug in style extension so it's easily removed or modified.
Starting point
TBI installed
Fuel pump prep, the filter goes in top of the assembly. I used a coil bracket to hold the pump so I could add some additional isolation by the way of a cut apart silicone coupler. I did not like the way the bracket that came with it only covered half the pump and with very little isolation.
Fuel lines
Making some connections
Finished install
MIL
And what the day long affair did to my shop. It took about 12 hours start to finish with the obvious store runs and a couple meal brakes for good measure.
Since this has been covered many times I just did the highlights. If anyone wants any specific detail, let me know. I have a great deal of pictures!
Runs fantastic, had some minor tweaking to do with vac lines, timing, and misc adjustment but it fired right up after I got it primed. So now the only things left non-functional are dome lights and AC! Yay for me!
Big thanks to my buddy Ryan for the company and handling the laying on hard concrete so I don't have to type work
I plan on ordering the kit here soon want to get it on before winter my wagoneer runs ok at best seems really doggy imo but it's the only one I've ever driven but my 4.0 xj could outrun it hands down lol I'm just looking for better drivability(for the wife when she drives it) better starting and a little more power would be nice
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