I'll try again tomorrow and log it as a .msl. Are .msl files able to be loaded to miataturbo.net? And what perimeters would you like me to have logged?

I can't help but think there is a lot of power still on the table. I think i'm a little rich and not enough timing. And of course about 4 more psi of boost would help.

 

Are you SD card datalogging? If you are using tunerstudio to datalog, it will log ALL the data unless I am mistaken. I only ever have to pick and choose when logging to SD card.

Also, you have a forged rod motor with good pistons and pump gas compression. I wouldn't stress about that motor.

Your turbo however might be choking your potential.

 

there is a default function that will log everything and or you can tell it to only log certain data points.

Not using a SD card, just telling tunerstudio to start and stop logging.

 

"Data Log Profile Editor?"
I never even noticed that option.

Just log them all if you can. If not, I will make a list tomorrow.

 

basemap from megasquirt website

spark map from tuner

 

i posted the above cause i thought it was curious what is on the base map for 99-00 miatas and comparing to the map after the tuner messed with it.

 

Did you do a timing belt? What is the idle vac and at what RPM? That looks suspiciously like a mistimed intake cam to me.

 

i haven't done the timing belt since i built the motor a few years ago. Not saying its not possible. i idle at about 900rpm and if i remember correctly at about 35kpa. I can double check this tomorrow.

 

This is from my 9:1 BP4W FM1 on a shimmed wastegate at 8.5psi. I was running about 1-2 degrees more timing then you and an AFR 0f 12:1 in the 150KPA row.

 

since we can now upload MLG files

 

I'm thinking my cam gears are off by 1 tooth each. What do ya'll think. Marks on the pulley line up with the "T" on the belt cover and matches up to where my extension stops going up.

All I can think is that if it is off by a tooth. It runs and idle remarkably well.

btw, sorry I couldn't get back to this sooner. I had to get surgery on my wrist which has prevented much wrenching.

 

Intake cam is 1 tooth off, exhaust cam looks good

 

Correct be if I'm wrong but I count 19 teeth between the gears. And moving the intake cam one tooth would throw this off.

 

So, i believe i got my issue figured out. I'm like 95% positive that the timing is off by exactly 10%. I starting tearing down the front of the engine to double check where my crank was sitting. I'm using the keyway instead of the half moon on the gear cause i don't want to pry the damper off. It seems that the timing marks on the supermiata damper are a little strange and one mark sits on the "T" and one is off the scale. I used this thread for reference https://www.miataturbo.net/general-m...ry-here-89510/.

 

Keyway straight up

Marks being off.

Cams at actual TDC.

 

I do not think you see what you think you see. They look the same as the white and orange marks in the thread you resurrected.l, where Curly said good to go.

DNM

 

Well, when i moved the crank over to the spot where Curly said got to go, My cams go out of alignment.

 

Both cam sprockets look one cam sprocket tooth advanced to me. That would hurt your higher rpm performance, but would idle good.

 

The Cam gears are off for sure. The marks should point almost vertical, and the #1 cylinder cam lobes should point outwards.

 

Little update.
with the timing correct went to the dyno and actually pit down some reasonable numbers. 220hp and 229 ft/lb at 14-15psi. Sorry for the lack of the dyno chart. But the shop lost it somehow.