Been pretty busy with work lately so not much time for updates. I made up a 3in dump and got my local exhaust shop to fit up a full 3in system. Sure sounds nice now. But that wasn't before I got pulled over for a RBT on the way there while driving it with just the dump pipe on. They waved me in just as I was coming round the bend at full noise. Was an 'interesting' few minutes but they didn't care less and were up for a good old chat
Had it on the dyno to check fueling and the OEM injectors are running out of fuel, thus making it very lean, around 3500rpm with 8psi boost. AFR's were in the 14's at this point

Still, even just driving below this point it's clearly obvious there's an animal screaming to get out.
Not interested in fitting a 7th injector as this is too dodgy for me and really just a band-aid solution. Right from the start of this project, reliability has been key, so, to do this, we've decided the best plan is to fit a Haltech Platinum Sport 2000, which is full stand alone ECU, a bigger set of injectors and a rising rate fuel pressure regulator. Now that it will be running full sequential injection (instead of semisequential) and a o2 sensor, this will greatly increase fuel economy when cruising or just taking it easy in general.
The new injectors are shown fitted to the fuel rail. The OEM injectors are 315cc, while the new injectors are 450cc. Getting the right injector is critical cos if you go too big, you can have trouble controlling fueling at idle, making it run like crap. Too small, and you'll have to crank the fuel rail pressure up beyond sensible and you're back to square one running too lean when on boost. So be sure to get it right as these suckers ain't cheap :shock:

Here's a close up for those wanting part numbers for future reference. They are also a direct swap with no mods needed - other than a retune, of course. I fitted them not long ago and it started fine but it was running super rich and not idling very smoothly. Sounded like my old LS1 with a lumpy cam

I wont risk diving it like that so will get a tilt tray to drop it off to the tuning shop.
