User Profile

[mikey.antonakakis]

Similar boost level for me, Spec Stage 3 or 3+, can't remember. It's a bit of an on/off switch, but I almost never stall when engaging the clutch around 1000-1300 rpm, and if you rev it up a bit more...

[mikey.antonakakis]

That should have resulted in higher speed for a given pressure ratio (had it happen before, when I accidentally fed manifold pressure to the wrong side of the blowoff valve). I'll be keeping an eye on...

[mikey.antonakakis]

Tested it out last night, with very simple control method: pressurize the dome until MAP is within 10kPa of boost target, and then vent it to atmosphere. Subjectively it seemed to help the spool, especially...

[mikey.antonakakis]

Compressor installed in the trunk and working, boost solenoid driver circuits built and installed, boost solenoids installed and wired. Just need to add the programming to the microcontroller, and hopefully...

[mikey.antonakakis]

Woohoo!!

[mikey.antonakakis]

Compressor, MAC solenoid, and plumbing assortment finally on hand. I'm going to start with a very simple setup - until the actual boost has reached some small offset from boost target, I'll apply full...

[mikey.antonakakis]

FWIW, my Nuke cam gear is pretty much dead on to the cam specs (Enem Z45 turbo) when the "zero" marks are lined up....

[mikey.antonakakis]

Intake manifold = danger danger danger (for the vast majority of printers out there ). If it cracks and you're not ready for it, the results could be pretty awful (unintended acceleration).
Valve...

[mikey.antonakakis]

Current ignition tuning below. So far I've run up to 180kPa with 200-210kPa planned eventually. The latest iteration was done on a dead-flat road (hard to find in Colorado, albeit quite windy that day)...

[mikey.antonakakis]

Glad you got that sorted.
For the moment, I've only been able to street tune my VGT setup, but I built some electronic det cans that work pretty well. We only get 91 octane at the pump here, and...

[mikey.antonakakis]

I printed an enclosure/bezel to fit a 2.8" Nextion display in the OBC opening. Happy to share the CAD model if anyone is interested.

[mikey.antonakakis]

It should idle, mine did with 60lb injectors, a little rough but it was good enough to set the timing. I probably had to bump up the throttle stop (or idle valve setting if you're using one)....

[mikey.antonakakis]

Regarding timing checks: unless you *know* that your adjustable timing light works flawlessly (assuming you or your tuner are using one), set it to zero or use a non-adjustable light. I spent $100 for...

[mikey.antonakakis]

Where are you mounting and lifting from? Shock towers and engine mount arms?...

[mikey.antonakakis]

Depending on the conditions of your engine mounts you may not need to lift the engine at all. It's not super fun to do, but it is possible (I just did it a couple weeks ago; I have solid aluminum engine...

[mikey.antonakakis]

Nice!...

[mikey.antonakakis]

Parts ordered for on-board compressed air boost control to ensure the wastegate stays shut during spool-up. I'll be using a VIAIR Ultra-light duty compressor/tank setup, regulator on the tank output,...

[mikey.antonakakis]

Video from a couple days ago:
...

[mikey.antonakakis]

I'm running a 885 head on fully-eta bottom end with a 280/280/11mm cam (Enam Z45 turbo). Pistons and valves didn't hit, but clearance was tight so I cut the reliefs deeper. Also running HD rockers, essentially...

[mikey.antonakakis]

Just leaky, that's all. I just pulled the trans to replace all the seals and did the oil pan gasket while it was out, so it hurts me emotionally that it's still leaving spots haha.

I might...