superchips or hypertech programmer

[00BlackClassic]

Use Dodge Neon injectors. P/N 0280155703 for 98 and older XJs and P/N 0280155784 for 99-01 XJs

http://www.naxja.org/forum/showpost.php?p=245680564&postcount=2

 

[1sicto]

Perfect!!! I will search now for a set...thanx!!!

 

[DieselSJ]

Ok cool thanks all for info! I will upgrade injectors already have exaust & air covered. What 4 hole injecters recommended & i tried a tb spacer but want fit with k&n air so where is best place to aquire throttle body? I guess at the end of its 1st life i will go 4.6 or 4.7 but for now its still strong.

Scrap the TB spacer - all they do is empty your bank account.

 

[1sicto]

Yeah it was few yrs back i had tb spacer just looking for a tb now i guess 60mm or what you guys think?
I have k&n intake
Flowmaster super44
Aquiring neon injecters
33x12.50x15 mt
4:56 gearing
I guess i get a speedo gear to correct that issue? So i dont have to worry bout trans with shift points & things with new gearing? Just tryin to get this done the right way the 1st time!

 

[Georgia Mike]

FWIW, I use a Hypertech Max Energy Programmer in my Suburban. I know it's not an XJ, but I feel the product experience is relevant. As far as power gains, I felt pretty much nothing after the "power tune" was installed and I saw a slight decrease in the fuel economy. The only gain I got from it was corrected speedometer and firmer shifts. I wasn't all that disappointed because I mainly bought it to correct the speedometer for the bigger tires and get the firmer shifts, so I'm happy with it. If I were to buy it again today, I'd just go with the standalone Hypertech Speedometer Calibrator (which wasn't available many years ago when I bought mine) and just do a Trans-Go shift kit instead.

I'd take the other advice given if you're looking to make more power.