TFI and Nutter Bypass

[ufgator16]

1071573

I have posted a few questions about getting back my power on my 89 YJ 258 w/ 33"s. It was suggested to me that I do a TFI, a Nutter Bypass, and either get a MC2100, Weber carb, or the stock Carter BBD but with no stepper motor. What is a TFI and a Nutter Bypass. What will this do for me?

[addsig]

 

[84_CJ7]

1071577

The TFI is an ignition uprade - really just a mid 80s Ford ignition (cap, rotor, coil and wires) that gives you better performance with a hotter spark. It is discussed in the Engine "how to" forum. The nutter bypass is a way to keep your Carter carb and bypass the computer. You can find out how here http://www.4x4wire.com/jeep/tech/electrical/jn-ignition99/

Scott[addsig]

 

[ufgator16]

1071578

Will these two mods help the power situation and allow for highway driving w/out changing the gears? Is it also true that it will he my MPG?

[addsig]

 

[84_CJ7]

1071579

They certainly won't hurt anything. The nutter bypass is essentially free while the TFI upgrade will vary in price ($30-$80) depending on how thrifty you are. Start slow and inexpensively and work your way up to the performance you want. A carb rebuild may be in order, too.

Scott[addsig]