June 13, 20233 yr #1 Hello all. So I started by changing my spark plugs and it snowballed into a total rebuild. Haha don't ask! So the setup prior to tearing it apart was pretty simple. 1000cc injectors and 255lp fuel pump. Stock exhaust with a high flow convertor, Plazmaman stage 3 intercooler and a stock turbo at 15psi. Lots of fun but as we all know you get comfortable with the power and so here I am. New build is a all forged bottom end, studs, ported head aftermarket cams pulsar gtx3584rs gen 3, Plazmaman upper intake, full 4" to 3 1/2" exhaust and all the boring stuff like billet flexplate etc. Well my question is how to break it in. Will my old tune be able to start it up and break it in? How long a break in before it heads to the tuner? Tbh it's my first non carbureted electronically controlled build. It was easy in the old days. This is definitely more complicated and I don't want to f/u a nice new motor.
June 13, 20233 yr #2 Your old tune might start it but having cams will make it lean as hell, especially under load. I would take it straight to the tuner with run in oil in it, have them get the tune to a place where it can handle some load, run it in on the dyno, then check the filter and swap in the good oil etc. If the filter doesn't have bearing material in it, turn it up as much as you want. You only need a 20 minute run in at varying loads and rpm, with some high vacuum decel chucked in for good measure.1500km etc is a myth. If it starts fine and can drive ok off boost then drive it to the tuner, providing they aren't hours away.
June 14, 20233 yr #3 Author Sounds good. I do have a aem air/fuel gauge I'll keep my eye on. Thank you!
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