What are the biggest injectors a factory 2001 ecu can drive...i plan on going boost and am curious of the fuel upgrades such as the best injectors on my factory computer

 

A factory ecu can drive anything as long as the MAF and TB ratio are right, and the MAF is calibrated for the injector size. You can also get away without the MAF being calibrated, but you may need some light tuning done to make everything flow better, which is always a good idea when using boost. In any since 42 lb will net most people more than what they need.

 

Will that use more gas?

 

YES!!

 

Shouldn't as fuel injectors support hp and there fore it's the added hp that drops the gas, not the fuel injectors, all they do is allow you to burn more of it. In other words, you can have 42 lb injecotors on a stock car and still get relatively the same MPG as your engine is still running at the same hp, and there fore doesn't need any extra fuel to run, so you're only using up a fraction of the injectors "capability". However, if you flip the switch and run a 150 shot of N2O, suddenly you're gonna be needing that extra gas to support your much higher hp ratings, and you're MPG will suffer as a result.

 

srry i was kinda puttin all of it together as in him needing the injectors becuase of the exta hp but i guess if u just put them on a stock or nearly stock car then u would be about the same