Hi all. I'm new to all this tuning stuff, but not new to computers and Hex editing software etc. I frequent the SyTy net forums so that's probably the best way to get the history of my '93 Typhoon. Lots of unanswered questions and a "banned" spam bot named anaweild or something sitting in the "Who's Online" box 24/7(I'm glad this forum is a little more strict about registration), but that's another story for another time.
The Typhoon. I had to put my Ty project on the side late 90's in LA after it was constantly overboosting, even at 3/4 throttle. I was in college and working IT on the side in Seattle so I didn't really have the time for it. It was previously "tuned" by RoadRace Engineering so I could take it to events like The Silver State Classic or cross country driving when I got out of college. They added an oil cooler, trans cooler, a boost controller that looked like an EQ, an inline fuel pump, etc. All this stuff was JANK at best. It was fast, but I don't know how, one day, all of a sudden it was overboosting any time I got on it even a little.
The Typhoon has been between my house and my parents house for over 20 years. Pretty much just sitting. I tried once in early 2000's to get it running proper, but I didn't have the time again to dig deep, and again wasted time and $ getting it running as I thought I would. Really nobody could help. I asked. I tried. I'm sure you guys have been there.
2022 I went ham (Ham PartII really). Convinced there was a fuel delivery issue more than an overboost issue (it ALWAYS had a fuel issue because it sat for long periods) I installed a New gas tank (again), new fuel pump (again), new FSU (again), new fuel filter (again), new AN lines tank to transfercase, new adj FPR, and made my own airbox out of a Ford Aerostar box because the stock intake tube was cracked on both ends. 3D Printed an adapter for it too. I got it smogged, then taken off the over 20 year PNO. It still had the overboost problem. So like all of you would do, I went to and over anything that controls boost, the solenoid, wires to the solenoid, and the actuator. I got an adjustable boost controller - Greddy Profec (I tried a APEXi BC post RoadRace Crackerjack BC, that didn't really help). This is after 3 different GM solenoids (over the 20+ years) and cleaning the solenoid terminals didn't work. Still overboosting. So I took the wheelwell off to check the actuator arm since the actuator itself was holding pressure, the eyelet was too far IN/short arm. Fixed it by screwing the eyelet out until it was just offcenter of the flap arm closed, and at the same time checked the movement. All good. THIS was 1 of 2 major problems fixed. I think it turned out to be 0 solenoid (ref boost) 19 PSI vs now 13 PSI max boost. I could probably do with one or two more eyelet preload on it, but meh. It's working. I then tried the OEM solenoid. Still overboosting at WOT. Switched back to the Greddy Profec. PERFECT. 2 of 2 major problems fixed(ish). I have hit 15.1 PSI no snake rattling in the engine bay at WOT. Feels good even though I'm still playing with it once in a while to get a nice curve the ECU is happy with, and get as close to 14.7 PSI max as I can. I had a really good curve once at 14.5 PSI, but I messed with it that whole day and didn't write down the setting. Still, I'm extremely happy with how it runs now. A legit "Base" if you will.
So here I am. I want a good running stock Typhoon. Not anything out of the ordinary. No 3 Bar MAP high boost deal. Just stock everything including OEM 2 Bar MAP and OEM wastegate solenoid. I want to ultimately remove the Greddy Profec.
The plan, read the stock (1580 BBZB) Memcal tune and adjust the duty cycle of the solenoid DOWN. Yep. The opposite of most people lol. Also update the tune to the last revisions of the Typhoons tune (1620 BBZB). I hope I can find a 1620 BBZB bin and compare with the one out of my Ty. The modified F2 timing table sounds like something my Typhoon could really benefit from. Anyways, I hope that was a good intro to my Typhoon adventures and ultimate goal. I'm still learning a ton by the day as hard as the info is to come by, but really glad much of the data can still be found.

Important stuff I learned (correct me if I'm wrong and I'll change it. Maybe helps others in the future):

-Typhoons ECU is a 1227749 (updated service number 16198263)

-Typhoons Memcal prom chip is a 27C128 (Read-Only)
Chip Addressing Start 000000 End 003FFF
Buffer Addressing Start 000000 End 003FFF

-The chip used on the Adapter (Moats G1/Red Devil River Equiv) SST27SF512
32K File Size Chip Addressing Start 008000 End 00FFFF
32K File Size Buffer Addressing Start 000000 End 007FFF
64K File Size Chip Addressing Start 000000 End 00FFFF
64K File Size Buffer Addressing Start 000000 End 00FFFF

-1620 BBZB Typhoon Memcal
Increased F1 timing in mid-range accel
Modified F2 coolant based timing table for better dist in cold temps and KR anticipation in hot temps
Altered 02 ready timer