U think i should upgrade the fuel pump or can i stay on the stock pump if i build the bottom end??

 

even without building the bottom end, you will still need to upgrade the fuel system....
intake fuel pump modded for a return line, inline walboro 255lph fuel pump, begi fuel pressure regulator, and a return line and you should be good to go....but if you plan on running big boost then you will also need to upgrade the injectors...

you cant have more air and not any more fuel

 

will the stage 1 injectors from an 05 SRT4 work????

 

as far as i know

 

qiuick question!, im hearin from some friends that if i run the stock SRT4 turbo, even witha boost controller i can only run the stock 15psi that its made for, n i have heard this numerous of times? Is their any truth in this? Any input on this guys would be much apreciated!!!!

 

i ran mine for a few days a 18psi....even at 20psi once or twice...
but you would need to get an AGP wastegate actuator..

even at 15psi, the car will be fast as hell...i had a hard enough time just keeping the car on the road

 

cant wait to put the motor in then!

 

ok I have a buddy who has a gt cruzer... he just took the vac line off the wastegate and plugged the hole.and upgraded the injectors.. runs 20psi with no boost creep and no problems what so ever... chysler wouldent have put a turbo on a block that if the vac line was cut would blow the motor... there not that stupid... however this is only good on a built block...

 

i disconnected my wastegate for a day and the car ran like all hell....but i dont know how much boost i was running because the srt boost gauge was maxing out