Before you tell me how much power my setup was making, read the 69 pages of this thread. I've run far more engine/part combos than the original 115hp '93 hydraulic lifter motor. In fact, your FS-ZE is not the first one in that car. I bet I've even posted those same old dyno charts before.
I ran the original hydraulic lifter motor for the first several races. Later I updated to a 98+ 626 solid lifter based motor. Those motors were rated at 130hp from the factory (w/FSD7 cams). This one came out of a very nicely built Probe I bought and parted out. That motor had a professionally ported and decked head, stainless oversize valves, Eabach valve springs, port matched 626 intake, solid lifters, FSH9 intake cam, FSD7 exhaust cam, under drive pulley, light weight flywheel, and balanced rotating assembly with K1 rods and Wiseco pistons. I ran it like that with the factory ECU for a couple races and then upgraded to custom ground Crower cams with the adjustable cam gears and went back to hydraulic lifters. I played with the cam timing on that setup and figured out how to move the power band around. I then updated the ECU to the Microsquirt. At that point, the car was making very good power. I played with the tune from race to race. Tweaking fuel and adding more ignition advance in the low and mid range. At that point, I am confident it was making around 140 hp peak power at the crank @5000-5200 rpm. That lower end always had problems with low oil pressure and I could never figure it out. Eventually about two weeks before our next race, I noticed that one of the oil jets was broken. That obviously explained the chronically low pressure. So, I swapped the ported head with Crower cams onto the '93 lower end with the forged crank. I even dialed back the cam timing a little to let is rev out a little more. But, when I put the head on the block the locating dowel that helps position the head gasket pressed all the way into the head. This allowed the gasket to slip a few hundredths of an inch. The 3rd cylinder piston began hitting the gasket ever so slightly. The motor only lasted a couple hours on the track before the rocking induced by the contact with the head gasket locked the piston in the cylinder and punch the rod through the side of the block :-(
At that point, I decided to see if I could locate a decent FS-ZE. Most the JDM crap they try to sell you is a MPV mini van motor. I pulled the valve covers off 10 motors before I found a true FS-ZE. The oil in the head was a little roasty looking. But it turned over fine, it had no slop in the crank thrust, and it rotated smoothly. I dropped it in and took it to the track to test. Sadly it had been over heated and blown a head gasket before it was pulled from the car in Japan. I took it back to the shop and I pulled the head off and took it to a local head machine shop. I looked through their inventory of rebuilt heads and cores and discovered the USDM Protege FS-DE head has the same casting number. So I had them rebuild one of those and deck it to the max. Before I re-assembled the car I inspected the pistons and confirmed they had a higher dome than the USDM pistons. But, I noticed there was a little scuffing and rust in the number three cylinder. Probably a result from the overheating event. But it cleaned up easily and the piston seemed snug in the bore with no unusual rocking. This motor was so tight and clean it couldn't have had more than 30K miles on it. So, I decided to risk it. I installed the FSH9 intake cam and Cork Sport FSH9 profile exhaust cam, set the advance to 4 degrees on each (given the milling on the head I figured this was closer to 3 degrees advance), installed hydraulic lifters to see what they did to limit the top end, bolted it all back together, and took it to the track. That combo was very healthy. It was making a little more power than the previous FS-DE setup, the cam timing had the power coming in nice and low and the lifters had the power tapering off around 6k rpm. Sadly, the motor didn't survive the test session. It developed a rod knock pretty quickly and poked the #3 rod through the block. Apparently that overheating in Japan hurt it worse than I thought.
I decided I'd had enough playing with FS-?E engines. It was time for a new challenge. That's how I ended up with the Integra.
The motor in the car when you got it, was bought sight unseen out of Craigslist. If I recall it was a hydraulic lifter motor out of a '96 626. I cleaned it up, freshened the paint, installed a rebuilt oil pump and water pump, installed a new timing belt and cover, installed the FSH9 cams, bolted it into the car, hacked up a Protege header, and started it up. It too had a blown head gasket. I probably ran the autotune on the fuel map while the car sat in the garage. But, I didn't modify it by hand and I didn't touch the ignition curve. I was done messing with the car. I already had a B18A1 Integra waiting to roll into the shop. I sold the 626 to the first guy willing to give me $1000 for it, the safety equipment, and all the spares.
So yes, I am very confident that I raced a motor setup making 140 hp at the crank and that FS-ZE was making a little more, but I didn't get a chance to qualify it. Given the porting, milling, balanced Wiseco pistons, under drive pulley, cams, ignition curve tweaks, tuned header, and free flow exhaust I would have to be an idiot if I could not squeeze an extra 7% horse power out of a motor.
Your setup makes more peak power, I'll give you that without even driving it. The pro tune certainly helps. But, you are revving the snot out of a motor with a 92 mm stroke to do it. Mazda did make a motor combo that peaked at 6800 rpm. But, they only built and sold that motor in a single sporty Protege model for the Japanese market. Every other car, including the Protege 5 and the MazdaSpeed Protege Turbo, utilizing that lower end made peak power at 6K or lower. That's how I came to my decision to keep the power band below 6K. Just because the factory made one model of car that peaks at 6800 doesn't mean it will run all day WOT at those kinda of rpms. Just ask a Honda racer. One thing this motor has on the Honda motors is it's not an open deck design. So, it's easier on head gaskets (if you keep the locating dowel in the right place, and temps appropriate). Besides, the FS-DE has a 92 mm stroke. It's a torque monster. So I built just that. Notice in our videos, we never used 2nd gear in even the tightest corners.
Speaking of lugging the motor, I still suggest wiring up the solenoid for those intake buttery fly valves. There's an output available on the microsquirt. I did some research a few years ago and they opened them around 4500 rpm. That means they will boost your torque/power in that critical 3000-4500 range. If you aren't dropping that low coming out of some of the tighter turns on the track, you are really thrashing on that motor and transmission.
I don't remember how much ignition advance I was running. But, I am pretty sure it was more than 17 degrees at peak torque (about 5K rpm). I do remember it was 12 degrees at idle. I left the fuel map fatter at WOT as well. I don't remember exactly. I bet it was more like 13.2-13.3. It was really rich at part throttle and idle sometimes. It depended if I bothered to clean it up after running the initial auto tune after swapping heads/motors/etc. I didn't cut fuel on decel. But, I did advance the ignition noticeably. That was a very cool trick I learned somewhere. It slowed the motor decel a little and eliminated stalling when you chopped the throttle harshly with the clutch in.