325_driver 422 Report post Posted December 26, 2008 Hey guys Some m20b25s have 3 bar fuel regs, and 2.5 bar Im taking that theres no hp difference, and the engine will run the same with both? why the variance ? Quote Share this post Link to post Share on other sites
CamB 48 Report post Posted December 26, 2008 More fuel pressure pushes more fuel through the injector for the same opening time. For this reason I would expect the injectors and fuel pressure regulator would need to match the ECU. Quote Share this post Link to post Share on other sites
325_driver 422 Report post Posted December 26, 2008 so im assuming if the original one was 3,0 bar, then i should stick to a 3 bar one. as injectors, fuel pressure are all to match the ecu Quote Share this post Link to post Share on other sites
