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Discussion Starter · #1 ·
So I am thinking about upgrading to the TFI, but I have several questions.
1)What will this do for me? I have a 258 with a Weber. Will it decrease or increase my emmissions?
2)Will I have a more stable idle and transfer to the main cicuit?
3)Can I do it myself? I am 16 and have a basic mechanical ability, but no one that I know knows anything about cars. Actually I do have access to a mechanic for free, but he works the 3rd shift, and I have to go to school (every dang day).
4)Will it be reliable? I don't want any my Jeep to have another weakness.
5)Does Autozone carry all of the good parts? I live in Memphis, home of Autozone, and there are no longer any other chains near me.
6)If I screw it up, can my engine launch out of the bay, landing three towns over in someone's living room?
7)Will I have to fabricate a little mount for the coil on the block?
8)Is the Ford cap waterproof? I think I heard it was, but don't know if I made it up. I only ask because around here all of the trails either have mud, water, or mud and water.
These questions also apply to most ignotion upgrades, but since I have never seen anything with an upgraded ignition, I don't know what to expect.
ed


 
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Discussion Starter · #2 ·
What is up with this? Everytime I make a post no one answers it. I ask stupid questions, but I want to know these things. Teamrush, I know you know this. Help a new guy out.
ed

 
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Discussion Starter · #3 ·
Since you feel like nobody answers your questions, here goes. BTW, most of these questions have been covered in the numerous posts on this subject.
1. You will get better starts, more power, and a more efficient burning spark. Don't know what effect it will have on emissions. There are too many variables to tell. Most likely will help if your motor is in good shape and your carburetor is dialed in.
2. You will most likely have a smoother idle. If you have carburetor problems, don't expect this to fix them.
3. Do you know how to change a distributor cap, rotor, and wires? If so, you can do this.
4. Will it be reliable? Of course it will. All you are doing is putting better parts in your Jeep which fit like they were meant to be there in the first place.
5. The only way to find out if Autozone carries the good parts is to look at the numerous parts recommendations, write down the parts numbers, and give them a call or better yet go there and physically look at what they do have. It's not rocket science.
6. What do you mean "if you screw up"? Have faith in yourself young man! Get a good service manual and follow the procedure for a minor tuneup. You can do it, especially if you have any mechanical ability.
7. You can either fabricate a mount for the coil or find a Ford automobile in the junkyard which has the same coil. A good starting place is a mid-80's Escort.
8. The Ford cap is not waterproof. Short of a military ignition, there are no factory ignitions which are waterproof. Do a search on the subject as it has been discussed here many times if it is a real concern.

I'd say go for it Ed. It doesn't take any special mechanical ability as long as you know what the parts look like and how they fit together. The only way you will ever learn is to practice. It's a good project to get your hands wet (and less wet behind the ears) on your Jeep and to have faith in your mechanical ability. Good luck!!!

 

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*Ed* asked,
*1)What will this do for me? I have a 258 with a Weber. Will it decrease or increase my emmissions?*

It will decrease your emissions if you change coils or go with the MSD module.
The carb has nothing to do with the ignition.
The stronger spark energy and more accurate delivery of that spark will give cleaner burns, and decrease emissions.
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*2)Will I have a more stable idle and transfer to the main circuit?*

You will have more stable and smoother idle, along with increased power all through the RPM range. The cylinders will be getting fire, and getting that fire at the correct time for a change.

The transfer to 'the main circuit' you speak of is a function of the carburetor, and your ignition system will have nothing to do with that. You will need to consult Weber tech line on how to correct any carb problem...
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*3)Can I do it myself? I am 16 and have a basic mechanical ability, but no one that I know knows anything about cars. Actually I do have access to a mechanic for free, but he works the 3rd shift, and I have to go to school (every dang day).*

Forest Gump could do this upgrade by himself. If you can change your own distributor cap, rotor and plug wires, you are in business...
Once you see the parts, you will know how they work...
Just pay attention to what goes where, and if you have any guest ions, have someone with a 70's or 80's ford truck raise the hood, and that should clear it all up...

Don't cuss going to school, and take all of the science and math courses you can get!
There is no such thing as a stupid or dropout automotive engineer. If you want to learn race cars or high horsepower secrets, learn math. It's all math...
Basic math, geometry, and applied physics.
I would put a 16 year old to work building 1,000 horse power engines if he could do the math...
How tall, how strong, how goofy, how ugly don't count in the real world, that's all high school crap... It's all what you learned and how you can use it....
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*4)Will it be reliable? I don't want any my Jeep to have another weakness.*

More reliable than your current ignition,
More reliable than the GM HEI, more reliable than any of the aftermarket mega buck ignitions.
Part available in ANY discount auto parts store... what more could you ask for?
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*5)Does Autozone carry all of the good parts? I live in Memphis, home of Autozone, and there are no longer any other chains near me.*

Auto Jerks is just fine, if you can get the mouth breathing nose miner to understand what you are looking for. Counter men at chain stores are pretty dense most times.
They do carry premium brands of caps, rotors, coils, and plug wires.
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*6)If I screw it up, can my engine launch out of the bay, landing three towns over in someone's living room?*

No it won't launch, but it will turn you into a little gay catholic basket ball fan that drives a brown Ford Probe... So pay attention to what you are doing... Unless you WANT to be catholic and drive a Probe....
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*7)Will I have to fabricate a little mount for the coil on the block?*

Only if you want to learn something, otherwise you can just get one from the junk yard.
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8)Is the Ford cap waterproof? I think I heard it was, but don't know if I made it up. I only ask because around here all of the trails either have mud, water, or mud and water.*

No. The Ford cap, nor the Motorcraft distributor is water proof.
There is a vent hole in the bottom of the Motorcraft distributor, and the seams and cracks where the vacuum advance attaches, the cap meets the housing, the wiring goes through are all potential leak points.
The upgraded ignition will not drown out any sooner than the old small cap did, if that's what your asking...
You can also make you housing pretty much water resistant pretty easy, but that's another thread...
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*These questions also apply to most ignotion upgrades, but since I have never seen anything with an upgraded ignition, I don't know what to expect.*

These questions have been covered here several times. If you are new, we will cut you some slack and answer them again.
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*Ed* wrote,
*What is up with this? Everytime I make a post no one answers it. I ask stupid questions, but I want to know these things. Teamrush, I know you know this. Help a new guy out.
ed*

I don't have near as much time on the BBS as I used to, so I pick the questions I think I can give the best answers to, and the more common questions I let the guys here answer.
It takes between 1 and 2 hours to write an in depth answer, and more than that to post an article, so there is a real time investment factor here.
(There is no return at all, unless someone posts a 'Thank You' on the BBS, so don't forget to thank everyone that answered your posts!)

They did a good job for you, so say, 'Thank You!' and be polite, and they will continue to help you with all your questions...

Besides, I thought you post was trying to bait me.
There are some pretty low crawlers here among the real people, and they like to stir up trouble. Not very many of them, but it only takes a few to start things... And I'm pretty short tempered...

I didn't know if this was real, or one of them starting something again...
If you notice, there are a lot of times I let the others answer, and if they haven't hit the nail on the head, (And they usually do, it's a pretty sharp crowd!) then I post.
I also post after the others do so I don't have to hear it from the pot stirring boys...
Keeps things on an even keel around here...
I don't want to upset the guys here to see what they can learn or teach, or to upset the casual reader or casual question asker...
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Good luck, and ask again if you have any problems, Aaron.



If Chris Columbus "Discovered" America (with 25 million already here), Can I Go "Discover" Florida?
 
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Discussion Starter · #5 ·
I am new, and I thank both of you for the help. I was just asking those because I don't want to get into something that I don't know too much about. I like the math, and take a Drafting class, but the worst part about school is the English, all that writing and reading books that I already read. Thank you for your long reply, Teamrush. I am sure that you alone have helped more people than any other on this BBS. Because of guys like you and snowtow, I have learned about my vehicle, and gained an appreciation for people who know how to do all this stuff.
ed

 

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I think if you hang around very long here, you will see CJ Dave helps more than I do, and by far...

I don't mind helping when I can. Thanks for the kind words, and keep the grades up!
The world doesn't need another dummy, it needs lots of nice, polite, educated people to make things better.

Later folks, Aaron.

If Chris Columbus "Discovered" America (with 25 million already here), Can I Go "Discover" Florida?
 

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That would depend on your engine.
Do you have a V-8 or I-6?
What size?
Do you know what ignition you have now?
Do you intend to pay with Visa or Mastercard?....

Do a search on TeamRush and look for the ignition articles.
Start with the most recent, and see if that answers your questions.

If Chris Columbus "Discovered" America (with 25 million already here), Can I Go "Discover" Florida?
 
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Discussion Starter · #10 ·
dist. cap base, distributor, rotor, and plug wires and coil for an '84 ford 300 I6 with eec
coil part #:
GP sorensen GC407S
Delco F503Z
Standard ignition FD479
Niehoff FF-179

'90 YJ 4" pro-comp susp. TFI upgrade. 258 "not all of them were bought up by yuppies."
 

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Exactly the correct answer.
The Hoosier has been paying attention...

I haven't committed a crime. What I did was fail to comply with the law...
 
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