Maybe in the VE. It does it steady state throttle slowly ramping up to boost, so it's not accel enrichment/transient. I spent a couple hours messing with the car last night, here's what I've found so far.
I cleaned all the oil off the bottom of the engine. I definitely had a little coming from the oil level sensor port which I had converted to a banjo for the turbo oil return (when I had turbos with oil). It seemed to be coming from the plug not the banjo so I flipped it around for now (banjo/plug facing up). That puts it above the oil level instead of below. I'll buy a new oil level sensor to plug that hole later, but for now it seems to be dry when I checked it.
I think I might have a little leak from either (or both) the 1/8 NPT plug for my turbo oil pressure regulator return to the pan or the turbo oil pressure feed. I need to pull the alternator to get better access to these and do a better job of capping them off as there is still a little bit of a line from the oil turbo oil system that I can't reach with the alternator in. I'll swing back to this as well.
I could not find any obvious oil at the front of the engine (front cover/front main), but I cleaned this all up to make sure I can see better what's going on. Once all of that was done, I drove the car for about 8-10 minutes and I don't have any engine oil dripping at all, bottom of the pan is dry. I can feel a tiny bit of oil on the driver side "wing" of the GT500 pan, which is what me thinks the leak is in the old turbo oiling system feed area. I will put it back up in the air soon and check. I might also get some UV dye to help trace where it's coming from.
I also seem to have a transmission leak. It's small, but visible. I need to check and see if it's actually transmission fluid or if engine oil is just collecting on the exhaust brace that sticks down into the wind on the transmission. If it's the trans, it's probably the shifter assembly, which is annoying to fix, but not a huge deal. I don't think it's the rear extension housing or anything by where the fluid is.
Leaks aside, I dug into the tune a bunch more, and did the following:
1. I noticed that the lean spikes correlated to cam timing movements as well as getting into boost.
2. Somewhere along the way I converted the VVT behavior to throttle position vs. RPM instead of fuel load. Why? No idea, but that's now how it was with the Elite, so I put that back to how it used to be. I also fixed bad settings for the VVT solenoid frequency. I confirmed that cam timing requested vs. actual is MUCH tighter now and the cams are moving more like I expect.
3. "fixing" the cam timing behavior leaned me out everywhere and jacked with my fuel map. So I pulled over the old fuel map from my Elite (glad I keep those old files around). This was closer, and after I scaled the whole map up, the car already feels better at low/mid throttle, aside from a small lean "chug" in one area.
4. This also got rid of my weird rich bump (aka drop in VE) at 3000 RPM, VE table looks more like I expect now.
5. I have made zero progress on the behavior at boost yet. It still goes dead lean as soon as I pass into positive pressure. I spent about an hour looking through config to find something, nothing apparent.
I did test a few things. I unhooked the MAP sensor and hit with my air compressor while watching to make sure it went positive pressure (was wondering if it had an issue and wasn't registering boost). Works great, responds great, not the issue. I also added another fitting to the intake manifold to run over to the MAP sensor. It was previously shared with the FPR and BOV. That shouldn't be an issue in theory, but splitting them will definitely improve response of the MAP and is the better layout.
Finally, I've been digging though the tune in a bunch of areas to dial in the fueling and predictive MAP behavior. Considering I can't find any real reasons for it puking under boost, I'm going to keep dialing the tune in and see if starts clearing up. All of this just frustrates me a bit because I had it running really well with the old Elite 2500. That's what I get for messing with things, haha! In fairness, these turbos do seem to hit a little harder than the old ones (smaller turbos + larger exhaust housings, I think it's a better matched combo) so that is at least a tiny bit of it.
Oh, and the front suspension feels great. As soon as I get the car running a little better and fix the last of the leaks I'll hit up a local alignment shop to get it 100%, but I'm very happy with THAT upgrade at least.
