A9L vs X3Z Computers

[Rraven2]

[U]Trying to decide between A9L[/U] (Stock in my car 90 5.0 LX) or X3Z (93 Cobra). Current setup (5.0, T5) Prom77, BBK 70mm TB, Cobra Upper & lower, headers, exhaust, 3.55 gears, MSD ignition, elec fan, etc. Stock longblock. Tons of suspension mods.Usage as driver and autocross.

 

[HISSIN50]

why would you swap a cobra puter into your GT? that is a backwards swap, IMHO.

If you have issues, i would tune what you have (the cobra puter is a step down, IMHO. plus you have to deal with the fuel delivery calibration).

Good luck.

 

[Rraven2]

Since I'm running mostly Cobra type components up top (77MAF, 70TB and 24lb inj) wasn't sure if the X3Z was a better choice. All I have is seat of the pants comparison between the two. What are the downsides of the cobra computer??

 

[HISSIN50]

the tables in the cobra puter can leave something to be desired. the cobra puter is what calibrates for the injectors - that should be considered with regard to parts needed/costs.

one can look at tuning sites for info on the tables of the various puters (i think A9M's look pretty nice. ).
Good luck.

 

[89CopCoupe]

Read a 'stroker build' article in 5.0/SF (can't remember which issue) stating the Cobra computer was conservative with the fuel ... they opted for the A9

 

[Rraven2]

Thanks, I'll check out the tuning sites.