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  #1  
Old 02-26-2005, 04:16 PM
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Default HEI, TFI, I\'m lost

I'm planning on doing something with my ignition and not sure what. I did hack out all the computer sutff and need to get the wiring sorted out. I remember a post about using tfi parts and an hei moduel. I couldn't get the search to work, anybody got a link to that post? I'm thinking that's my best but.
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Old 02-26-2005, 05:19 PM
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Default Re: HEI, TFI, I\'m lost

Here is a post with lots of information. Don't know if it is the one for which you are looking? -- Mike

Ignition thread
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Old 02-27-2005, 07:51 AM
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Default Re: HEI, TFI, I\'m lost

Hey Andy,

My personal vote? Don't bother with HEI unless you've got a Chevy engine. Go with the duraspark distributor with the bigger Ford cap, some really good wires (very important), a TFI coil, and your favorite brand of plugs. A note about the plugs... stay away from all the multi-prong snake oil crap. The spark is only going to jump to one prong. I run Champion truck plugs and am very happy.

If you really want it to breath a bit more fire, put an MSD 6A ignition box on it. WELL worth the money, and I can't sing enough praises about the product or the company.

You can do a search on my username and find all kinds of stuff about fiddling with the ignition.
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Old 02-27-2005, 09:38 AM
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Default Re: HEI, TFI, I\'m lost

I agree with high fill I did this about 2 years ago and it made a hugh diff in the way the ol YJ ran,, noe all i gotta do is get off the duff and get that MC2100 installed [img]images/graemlins/grin.gif[/img]
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Old 02-27-2005, 11:38 AM
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Default Re: HEI, TFI, I\'m lost

[ QUOTE ]
I'm planning on doing something with my ignition and not sure what. I did hack out all the computer sutff and need to get the wiring sorted out. I remember a post about using tfi parts and an hei moduel. I couldn't get the search to work, anybody got a link to that post? I'm thinking that's my best but.

[/ QUOTE ]

One rule I've lived by all my life is to keep things simple. It really keeps problems at bay. The same rule has applied to my Jeep. I want it to jump to life when I turn that key... with no questions asked. The FOMOCO ignition has never provided my Jeep with that simplicity and ability to roar to life each and every time. So, I converted to the GM HEI. It's got the one wire simplicity I wanted. By installing it I avoid running wires all over the engine compartment and each wire and connection is a possible point of failure. I have enough failure points on the Jeep to build them into the system... and forget them until they rear their ugly head.

May I just reiterate the points of a GM HEI: <ul type="square">[*]It's self contained[*]It's off the shelf parts[*]It's one wire hook-up[*]It's cheap to fix[*]It's easily maintained[*]It's more water-resistant than the FOMOCO system[*]It'll knock you on your butt if you happen to get across it's output[*]You don't need to get parts from across the Nation at the manufacture (ie. - Jacobs, MSD)[*]You don't need special schematics to fix the darn thing[*]It can be fixed by any shade tree mechanic, or any mechanic for that matter....[*]Parts are available everywhere... even Junkyards![*]It will help breath new life into your Jeep.[/list]
But what ever you decide on... work on one system at a time, and work out all it's bugs before you go on to another. To be blunt, don't install a new Carb at the same time you install a new ignition system. Do ONE at a time...
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Old 02-27-2005, 12:26 PM
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Default Re: HEI, TFI, I\'m lost

I totally agree with Leve.....
Allow me to add one point......you have a 258....the most wazu ignition is not going to extract any more power out of it than the HEI. It's kinda like putting a spoiler on a Ford POS escort....it may look Bichen, but it ain't going no faster with that stock motor.

As my boss loves to say "The solution is inversly proportional to the magnitude of the problem".

Oh, and one last thing.....this is the classic example of KISS.
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Old 02-27-2005, 01:49 PM
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Default Re: HEI, TFI, I\'m lost

I like the simplicity of the HEI as well. But since I have a V8, I have to have the extra wires to hook it up. It is still simple though.
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Old 02-27-2005, 03:32 PM
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Default Re: HEI, TFI, I\'m lost

Andy go with the GM hei unit. Change the whole distrubter. Its a easy as pie swap. I have done three different 258's and the hei makes a huge difference and like leve said, only ONE wire.
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Old 02-27-2005, 05:20 PM
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Default Re: HEI, TFI, I\'m lost

[ QUOTE ]
Change the whole distrubter

[/ QUOTE ]

Jim what distributer do you use?
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Old 02-27-2005, 09:37 PM
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Default Re: HEI, TFI, I\'m lost

An HEI from a a GM 250 inline six. Remove the rolled pin and pull drive gear off, put a an 83 or newer AMC V8 drive gear on. Install in reverse order. Have fun! (Read the write ups so you have a true 12V source, but it is simple)
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