I just picked up that sweet deal from Texas Hot Rods on the Saleen Series IV. I really dont know to much about injectors, but that they restrict the fuel flow depending on the size that they are? So bumping them up from the stock 30# would do what for my ride? Im wanting to go to 42 pound ones, but I just thought I know nothing about injectors so why not ask about them before making a useless buy. But I assume that if I bump them up im gonna need a bigger fuel pump. Would a 255LPH one work or would that be to high? Your guys knowledge is appreciated. Thanks

 

You should go with a set of 42 pounders and the SVT focus fuel pump, it will be more than what you need, but more is better than not enough.

You will need to get a MAF calibrated for the 42 pounders, along with a retune of the cars computer when you install the blower.

Also, your car does not come with 30 pound injectors stock. I believe they are 19 lb/hr injectors, but I could be wrong (look it up if you need to know for sure, they are color coded).

EDIT: If there is a signficant price difference, you can go with the next size down injectors (from 42 lbers) if you do not plan to do anything else to the car (basically stock with the blower added).

 

I was also lookin into the SVT fuel pump. The reason I said 30# is cause the kit come with them. The reason im wanting to upgrade is cause I saw one on ebay that had 42# and it got me thinkin. But what exactly do the injectors do?