Re-Chip for 4.2 in a NAS110 - Land Rovers Only

TerryS · 09-13-2004, 02:48 PM

Does anyone have any advice, hopefully backed by experience, regarding the rechipping of a 14CUX, 4.2? I have just finished a scratch built 4.2 to replace my tired 3.9, and am hugely impressed by the performance gain, especially low end torque. As all 4.2 engines were originally only used in Auto Rangies, I am curious if there is a reccomended upgrade for that computer when used on a manual box. Idle is slow to flatten when off the power, but I hesitate going back to the old computer as I'm guessing the fuel mapping is different for 3.9.
Any thought?

09-13-2004, 02:48 PM	#1 (permalink)
TerryS Moderator Join Date: Aug 2004 Location: Bloomfield, CT If I died today, I lived there all my life. Posts: 2,032 Gallery: 0	Re-Chip for 4.2 in a NAS110 Does anyone have any advice, hopefully backed by experience, regarding the rechipping of a 14CUX, 4.2? I have just finished a scratch built 4.2 to replace my tired 3.9, and am hugely impressed by the performance gain, especially low end torque. As all 4.2 engines were originally only used in Auto Rangies, I am curious if there is a reccomended upgrade for that computer when used on a manual box. Idle is slow to flatten when off the power, but I hesitate going back to the old computer as I'm guessing the fuel mapping is different for 3.9. Any thought?

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Remove Advertisements Sponsored Links
Land Rovers Only - Land Rover Forum Advertisement

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)