Injector and MAF question - 2003-04 Mach 1 Registry Owners Club

VA-Mach1 · 04-25-2017, 05:45 PM

I have a set of stock Mach 1 injectors that I may install on my 99 GT after I put a 70-75mm TB, upper plenum, cold air intake, and 4:10 gears. My questions are: would it even be worth the effort with those mild mods, and even if it is worth it or not. Let's say I did install the injectors, could I install a stock Mach 1 MAF with the injectors as a plug and play setup or would I still need to retune?

Thanks for any help you may have.

DSG2003Mach1 · 04-25-2017, 06:36 PM

The maf on these cars isn't calibrated to a set of injectors or anything. Change the injectors and the une needs updating. Change the maf and the tune needs updating

Changing the injectors won't gain you a thing unless the others are maxed out

04-25-2017, 05:45 PM	#1
VA-Mach1 Mach & Cheese Join Date: Mar 2014 Location: Richmond VA Posts: 797	Injector and MAF question I have a set of stock Mach 1 injectors that I may install on my 99 GT after I put a 70-75mm TB, upper plenum, cold air intake, and 4:10 gears. My questions are: would it even be worth the effort with those mild mods, and even if it is worth it or not. Let's say I did install the injectors, could I install a stock Mach 1 MAF with the injectors as a plug and play setup or would I still need to retune? Thanks for any help you may have.

04-25-2017, 06:36 PM	#2
DSG2003Mach1 700 HP Mach Join Date: Nov 2003 Location: Orlando, FL Posts: 8,384	Re: Injector and MAF question The maf on these cars isn't calibrated to a set of injectors or anything. Change the injectors and the une needs updating. Change the maf and the tune needs updating Changing the injectors won't gain you a thing unless the others are maxed out __________________ 03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc... '12 F150 FX2 Supercrew with Ecoboost daily beater

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