ok, so i just waste a whole 8hrs at work looking through this build. holy f.u.c.k.

you have worse OCD than me...i clean and paint...you sand clean polish paint, stirp, paint again, clean, powder coat and install .....


hehehe

Closed loop idle is so much better than PWM. I've got it pretty decently tuned just need to mess with it some more.

They are both PWM but we know what you mean. I use warm up just to set a base VE, idle screw and base AE than switch to CL and retune everything. Idle, AE. VE, etc. I just dont prefer diving into CL with out the car running half way decent in warm up.

Once you get good at PID it goes from being your biggest enemy to your best friend.

Yeah that is what I'm fine tuning right now. It definitely helped tuning warmup up for a while and then doing closed loop. Biggest hurdle was make it so the RPMs didn't ramp up 2-3k and hang.

I'm also getting a new bracket made for my waste gate actuator. The housing On the waste gate is hitting the turbo housing so I'm bleeding psi early at around 10-12 psi. Making it difficult for the EBC tuning. Seems erratic in how it responds. At times it'll peak at 10-12 and others it will go up to 26 as it should.

I had the same issue with the shitty fm bracket. Its a poor design that allows for flexing. I went with the kinugawa and love it. The mount is strong and the actuator is serviceable and the springs can be upgraded. I was having the same issues as you are at lower psi and that was the only way to tune EBC. I also had to end up running my solenoid differently. I run it like its external even though its for an internal. I was able to get better response out of the actuator and keep it closed longer and release faster. Im only at 10psi with the 2560 but my ebc is tuned so well that I can control boost easily with my foot. No lag at all, zip zero nadda. Ill give people rides and thats the first thing they notice Holy Shit it spools fast. I dont have overboost issues or weather dependance's. Stays at 10psi no matter if its 105º or 35º. The kinugawa actuator comes with upgradable springs as well to increase pressure.

Damn. Jealous of the lack of lag with the 2560. 2860 on mine doesn't have much but you can feel it. Probably due to my rough settings.

I actually found out it was a tuning issue. After taking a look at 99mx5's ebc settings and actually reading the megasquirt manual thoroughly I found my issue was mostly related to my Lower Limit Delta% I had way to small of a window for it to climb and my proportional was way to low in relation to my integral. Still fine tuning it to peak at 26 psi but it climb up to it without a sharp cutoff like it was doing before.

Here is my rough settings. Jesus it is scary now. I want to look at my gauges when I'm in full boost but my brain is too concentrated on keeping the beast in a straight line.

https://www.miataturbo.net/attachmen...ine=1406220298

Any videos of this animal in action yet?

Not worth watching at least. Trying to get the last bugs out of the system before I do. You don't want to watch a video of it cutting boost early!

:bigtu: Looking forward to seeing them once you have em!

Sounds about right! And then you can't find the next gear because everything is blurry

You may also try moving that slider down a bit to reduce sensitivity so you can use less D. Once you get close to your target I use I to not only cancel out oscillation but to give it that final umph to reach the target. You need to find a buddy that will hold the laptop for you. When I tune EBC I bring the wife with me and have her input what settings I tell her and she watches the gauge and tells me what boost I hit and if any oscillation. I also run a data log at the same time to refer to later. Its best to get a woman to go with you they ask less questions and when they see you can tune your car it gives them girl boners haha

Thanks as always for the advice Scotty. I'll see if the weather is kind tonight. Hard to do long pulls with an ambient of 111°!(seriously I am dying).

Right now I'm working on decreasing coolant temps. Crusing at 85mph when it was 108° this morning causing my coolant to hover around 213°.

-Just finished wiring the dual fan mod and tested it
-made a rubber grommet for my funnel with some old mtn bike tubes. Made a really nice tight seal(helps that my funnel is perfectly sized to the radiator cap). Raised the front of the car up as high as I could and burped it for a while. Previously I thought I had gotten all of it but after a couple gurgling/boiling sounds were heard I obviously was still having problems with it.
-Also working on sealing my engine bay even better

If all that does not help then I think I may need to upgrade to the TSE $$$ radiator. The radiator on the car may have been good for Alabama but as anyone in the desert knows, it gets painfully hot out here. Or maybe I am just a giant pussy now due to my VW and its arctic winter AC. Picked up some Mexican after driving back down to St George from Cedar City, and after I got out of the car I noticed I made a big mistake by wearing light colored clothes...my entire back was soaked with sweat.

Plus don't get me started on the weird shit VEAL autotuning starts doing in this heat.

Just finished reading the entire build. Amazing build thread and attention to detail. Enjoy the car man!

Yeah veal will always change. Veal should just give you an idea where you need to be but you will still need to run data logs and adjust your table manually. Also make sure your gamma air correction stays above 100 as intake temps increase. I hear yeah when it comes to heat it's been hot as hell here but not as hot as what your seeing. You may want to also upgrade to some spal fans as well or something that flows a lot of cfm. A cross flow would help for sure.

It blows my mind how well sealing gaps helps your coolant temp. I put some rubber vacuum tubing on top between the radiator cowling and the radiator itself, I also took the screws out of the bottom cowling I made earlier and put some thick foam weatherstripping in there. Also used a little thermal wrap and sealed the miscellaneous holes in it(excluding a couple drain holes).

Drove around town for a while and didn't see temps over 205° even after slaloming the cones *cough*...cars of all the old retired people going 10 under the speed limit. That is almost a 10° difference! Hopefully it stays that way.

I think I need to do another flush of the system though, My water was already quite brown, but now that I think about it I never really did a flush besides refilling the coolant system after I put the car together.

Eat a dick fagogor u have more views n dont even have a real
Turbo at least get a borg warner s366
And make
Life worth
Livang

Jeff has the aids now :(

o lawdzzzzzzzzzz :giggle:

Hey, at least Jeffbucc's car is running... :rofl: