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Red Line On 258 I-6

dadscj8

dadscj8

SOA Charter Member
City
Tucson
State
AZ
Does anyone know what the red line is on the 258? I get to about 3000 rpms and not much further. Someone told me the max should be around 4500.

Any ideas?

Phil
 
The factory ignition serves as a rev limiter at about 3000rpm. You need to upgrade your ignition with one of the many methods out there. I'm sure someone can post some links to some of the write-ups. I recently helped a friend do one to his CJ-7, he got over 4000rpm.
 
TFI Ignition Upgrade

Here is the link to the Teamrush TFI ignition upgrade:

http://www.jeepz.com/modules.php?op=modload&name=Howto&file=engine_tfi

This setup is the best improvement that you can do for your Jeep's performance, for the money. The Nutter bypass is also a good one if you have the computer controlled stepper motor on the carb. (Just go to "www.google.com", and search for Nutter Bypass Jeep 258) Good luck.
 
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