42 lb injectors, stock maf

96snakebite

New Member
May 17, 2003
49
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Victoria, TX
would it hurt me to install 42 lb injectors with a stock maf? i am preparing to install a procharger, but needed to change out my cracked manifold before taking it to the shop for the tune. i am not quite ready to install the supercharger b/c i dont want to drive around without a safe tune. question being, will 42 lb injectors dispense the same amount of fuel at my stock 19, using the same maf? will it be safe to go ahead and put them in now, or should i wait untill i do the supercharger? i just thought it would be convenient now, but wanted to make sure i wouldn't do any harm.
 
96snakebite said:
would it hurt me to install 42 lb injectors with a stock maf? i am preparing to install a procharger, but needed to change out my cracked manifold before taking it to the shop for the tune. i am not quite ready to install the supercharger b/c i dont want to drive around without a safe tune. question being, will 42 lb injectors dispense the same amount of fuel at my stock 19, using the same maf? will it be safe to go ahead and put them in now, or should i wait untill i do the supercharger? i just thought it would be convenient now, but wanted to make sure i wouldn't do any harm.

It'll run pig rich and so rich it may not run. Noty great for a motor. The EEC won't 'know' you have switched and will still assign the same pulsewidth for the injectors, except with the 42s they will remain open and deliver a lot more fuel. You will need a new MAF before your tune also - you will peg the stocker.