RomRaider

So quick question, is the global timing adjust getting flashed to the rom file or is it just functioning as a piggy back type of adjustment while logging?

Thanks!

Hopefully good news. Last night I snuck into the garage and put the car on jack stands. I double checked the driver side shield and the cross pipe shield for any rubbing or looseness, then dropped the right manifold and removed the heat shield. I decided on cutting half of it away rather than trashing it, aim for that was to keep a bit of shielding by the plastic timing covers. Anyhow, the shielding section I have left is very secure, when I hit on it, it sounds like I'm hitting a solid mass where as before I think I could detect the missing top bolt/rusted area, just didnt sound 100% one with the engine, So I managed removal, shield trimming then reinstall all w/o getting yelled at for waking the wife or kids up, so there's an accomplishment in itself

Anyhow, so I didnt do the global timing change yet but decided to try it as is. This morning on the ride home from dropping my son off at school, where I could, I logged. No full pulls, but lots of higher gear low speed load, lugging the motor, basically going past the load points I was seeing the corrections yesterday trying to make it knock and I didnt get any anything. I'm a bit nervous, but tempted to try the global timing adjust and just add a degree at a time and see how it goes.

So there's where I'm at, hopefully will update with further good news!

Trey

its a temporary adjustment so stored in memory until the ecu is reset/reflashed

Ok, so great news! Going on record to confirm a rattling heat shield even slightly will manifest into a tuning nightmare!

Car is running great, even driving with the ac on, I lost the slight jerkiness I was feeling, even when I didnt see knock correction. So I've been out beating on it for an hour now and saw nothing bad under load. I was so confident after the first few pulls, that I loaded one of my older revisions which had a tiny bit more timing. When I successfully used that map w/o issue, I just went into the timing map and did a global change and added right over 1 degree everywhere. Lol when I went to go use RR's the global adjust map, I realized that it was for what you mentioned, pulling timing, not adding. Oh well, at least I know its there now!

Anyhow, I'm adding my current file and two 3rd gear pulls. One of them may have an odd load bump, that was just me accelerating onto the on-ramp. I'm not interested in going crazy with the car, but if I can optimize timing, boost and fuel or anything, I'd like opinions. I know my boost is still fluctuating a bit, is there anything I can do there inside the rom file? Or is that a hardware issue? I've got a second oe boost control solenoid I kept from my 05 wrx long ago, I ran a profec b then later switched to a manual hallman, so the solenoid would probably be good still and have way less use than the one on my 155k mile car. I also picked up a cheap new actuator to try. That being said, THe boost control on these scares me the most esp after I had the issue with the vacuum line breaking and the crazy boost spikes. Opinions there? What would be a safe boost level to run the 9:1 motors at? I'm ok with 16-17 unless I'm leaving a bunch on the table safely.

Thanks so much,and thank goodness it was just the heat shield!

Trey

ahhhh but, if you *ADD* 5 degrees to your base timing table, then load the tune and use rr to subtract 5 degrees you can very quickly test some extra timing by changing incrementally from -5 to 0 degrees adjustment - then just go back to the tune and edit to suit the value it liked best on the road

lol this is true!! My brain wasn’t thinking that fast when all this was happening, I was to excited that it quit pulling timing!

Actually added another degree globally to the map above, been driving it around today, feeling stronger than ever, no logs, but I checked the advanced multiplier when I got home a little while ago, and still at 16. I also added another click of fuel at my richest to get my high loads a tad closer to bottom 11s on the wide band. The last time I was tuning this much was quite a while ago on a ver8 sti motor with a garret 3076. Big difference and I was shooting for high 10s under load AND our 93 octane fuel didnt have the 10% ethanol its allowed to now. What should I be shooting for with this set up? I was thinking in the 11.2 range?

Thanks Trey

really it depends on what your car likes, at low power / standard turbos anywhere from 10.9 to 11.5 should produce decent power but you have to test *your* car and see what it likes. Don't forget there's a link between the AFR you run and the timing you're running too, more fuel/richer AFR will need more time for a complete burn so by adjusting the AFR you're also having a knock on effect to the timing that you'll have to keep an eye on too.

Yeah, I’m playing with it a little still, I was getting like -.35 in the 18-2600 .90-1.09 box in learning view, all else looked good, should I pull a bit of timing in that range yet or just monitor it?

I also got my boost control squared too, turbo dynamics continuous needed lowering, which you may or may not have told me in this or another thread. But I cut the values to about 2/3 of what they were and the fluctuation is all but gone.

Trey

don't be trying to tune your car off the LTV info, make an *actual* log and you'll know what you need to do from that.

Got it