hi guys, i am changing my procharger pulley on my 98 cobra to a smaller 3.40/10psi and i need to know if my 36lb injectors will deliver enough fuel, with 255lph fuel pump ??

will appreciated some help.. THANKS

 

255 lph pump will work with 36# injectors...BUT I would get the car to a dyno to have everthing checked & safe!

Does the car have a fuel pressure gauge??

 

HEY TIMSPONY, i dont have a fuel pressure gauge but i have a FMU i am not sure if that is any help.. I am going on the dayno next week but the tunner told me that it might not be enough and that i should stik with my 8psi pulley but since i bought the smaller pulley i really want to have my 10psi..

 

a 255 with 36lb injectors is enough. If you are running your stock MAF sensor, that will be maxxed out. You will need another MAF.

 

What kind of power are you currently making?

 

hi mfj, i am not sure since it will be my first dyno tune, but they tell me i should have 400-420 to the wheels. my maf has been changed to 92 PRO M. the thing is i am not 100% sure that the pump is 255 but the previous owner tells me he thinks he changed it, if not will the 190 stock pump would be enough? and does the procharger need to be removed to install the new pulley and how long should it take?

Thanks mfj!

 

GL...let us know how you make out!

 

sure will

 

The 190 lph pump will NOT suffice. And yes, the procharger will have to be removed to install the pulley.

 

id stay outta it until you know its safe last thing you want it to run lean and detonate