SRPWR wrote:Other guys correct me if im wrong, but if you plan on running the 740's you are going to either get a PFC or get a tuned ECU for those injectors. I think the SAFC II will only allow you to tune up to 550's. But you can get a tuned ECU for 550's and then the SAFC II will allow you to tune for 740's. Its all about percentages.
you are correct. with STOCK ecu you cannot control the fuel with 740cc... SAFC2 could only regulate up to 50% above your currect ecu setting so.. 370 divide by 2 = 185. ADD everything up 370+185 = 555cc.... the most you wuold get from stock ecu with SAFC2 is 555cc. Thus, you would need a tuned ecu, PFC, or any other aftermarket managements (ie: ems, greddy ultimate) just ask you stated.
leroiboy wrote:ok, so should i just go with 550's?-and what kind of hp and boost range(with upgraded turbo of course) can i run with those? what is pfc?
well depends on your turbo of course. what kinda power do you WANT to to making? if you're going for high power of course 550s are not suitable... 300whp is probably good for 550s. PFC = Apex Power FC ... its an engine management system