Originally Posted by
Gil14
I would say if you want to up the boost then yes. If your happy where your at now i wouldnt personally spend the money. Im not very familiar with s15 set ups, im sure someone else who has more knowledge will chime in. Im currently building my first SR motor so im still learning alot of new things also. Do you have an electronic boost controller?
No EBC, just a manual boost controller.
Best I can tell the S15 and S14 long block is the same. The differences are the S15 has 480 injectors vs 370 and it comes with the T28 bb turbo. But I think some S14's also came with that turbo. And the Eco is different. Not sure if the S15 Eco runs a more aggressive fuel or timing map that the S14 or if its just a different ecu cause of the bigger injectors. They both use the same maf.
These motors are new to me also. I am a long time DSM guy that's trying something new.