Vit's FI TT 370Z Lives!

Chuck33079

Does this standalone play nice with OBD?

__________________
2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

VitViper

It's not just a stand alone. It's a stand alone with full vehicle integration. Push button start works like stock, put in the key authentication on key ON into it as well so I don't get an immobilizer light on the dash (which the ECU will still run the motor even with that light on, but who wants to look at that crap?).

A/C is run by the ECU via CAN. The fans are run by the ECU via CAN.



Oh and cruise control works.

Yes yes.

Pretty sure no one on the market making ECU's targeted at motorsports cares about OBDII. It's a diagnostics/emissions related protocol and these are race/off road ECU's (I have yet to see a single "CARB" approved stand alone ECU -- even when the ECU runs all the factory emissions systems like EVAP, etc, like this M1 can be programmed to do).

So on the diagnostics front... OBDII is inferior compared to plugging my network cable from the ECU into my laptop and pulling 400+ channels of data that shows me EVERYTHING. On the emissions front -- I'm not even going to touch that with a 10ft pole, not with the EPA losing their minds trying to shutdown our race cars lol.

That... and you probably couldn't pay me enough to spend the programming time on it, lol.

Now for a teaser of some more goodies... dual lambda closed loop control -- full time either with a MoTeC LTC or whatever analog inputs you feed it from your existing in-car widebands if you like.
http://blog.vittuned.com/wp-content/.../motec/afr.png

Knock control works with both bank's knock sensors. Very advanced and fully configurable knock logic if you want to configure it. Your motors will live longer if you spend the time to dial this in. I'm beating my motor up so you don't have to beat yours up -- verified the frequencies I tuned for the knock FB are correct, as you can see. haha.
http://blog.vittuned.com/wp-content/...otec/knock.png

And of course, VVEL! That oh so scary VVEL (lol). Fully unlocked, fully mapped, including safety margins (which you can adjust if you like, but your funeral if you do lol).
http://blog.vittuned.com/wp-content/...otec/shaft.png
http://blog.vittuned.com/wp-content/...tec/shaft2.png
http://blog.vittuned.com/wp-content/...tec/shaft3.png

Chuck33079

The only reason I asked about OBD was to see if there's a chance to use this on a street car. I understand what OBD is. I couldn't give a rat's *** about emissions or using it for diagnostics, but it would be nice to be able to get the car inspected so I can drive it on the street.

__________________
2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

VitViper

Inspected by...? The local emissions/deq? If so that's kind of an emissions thing, regardless of how either of us feels about it. Pretty sure a turbo kit on one of these cars wouldn't pass an OBDII scan (various codes turned off to keep the ECU happy on my ECUTek map). Unless someone is stalking you, it shouldn't prevent you from running this ECU setup.

In fact, the way I have it setup... I can unplug the M1 and plug the stock VVEL & engine computers in and drive away (yes, the M1 takes the factory VVEL computer out of the picture -- we run it ourselves, no problem). Shouldn't be a problem to keep the stock computers on the shelf for a rainy day -- takes 5 minutes to revert back to them, and their glorious 12 minute reflashes, lol.

Chuck33079

Inspected by the state. In TX (and plenty of others) TT kits pass just fine, even without cats. As long as there's no code or it's turned off, it's good. Their computer just has to be able to communicate with the ecu.

Since you can switch back to the stock ecu and have a running, passing car, then this is back on the menu as a possibility.

__________________
2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

VitViper

A/C control works.

http://blog.vittuned.com/wp-content/tt370z/motec/ac.png

lj909

Wow dude! Awesome!

__________________
PW 07 HR350Z R.I.P. Totaled by 82yr old woman
2010 40th Anniversary 370Z

Jhill

Curious what does the stand alone offer that ecutek doesn't? I thought ecutek had full vvel control and everything no?

Not boosted so probably has no effect for me but just curious.

VitViper

For a bolt on car ECUTek is more than sufficient, it's a great solution. The MoTeC isn't targeted towards something like that. This targeted at F/I builds that want to take advantage of full control of everything with great precision, superior speed, etc. Full time lambda control, full time closed loop boost control, closed loop launch control, closed loop traction control (not a queer ignition timing retard -- this is the most retarded way of doing any traction control, especially on a turbo car, pun intended).

Once I get further into the features I'm programming in, I'll have more details.

Jhill

Interesting. So how does it handle traction control? Also closed loop traction control, would traction control be active regardless closed or open loop? Doesn't the gtr have closed loop boost control?

Sorry if I come of as questioning you, I am curious what all this means/how it functions vs the Oem/ecutek route.

Thanks.

VitViper

It's a driven target based on non driven speed and does not use throttle nor timing retard to control it (which both methods suck horrible). Closed loop in that it's got a feedback.

The GTR has closed loop boost control but it's a completely different ecu/car.

It's an advanced stand alone -- I could go on for days. I've spent years and years tuning OEM ecu solutions, some better than others. Some can be pushed quite far even. However none will ever touch what a good stand alone. And yes there are a lot of bad stand alones out there, lol.

Jhill

Could you elaborate on what you mean by it's a target driven traction control with a feedback. So in other words my wheels are slipping what happens now? In a conventional system it cuts timing and throttle to cut power until traction is regained, what does the stand alone do different to regain traction?

VitViper

Got some chop going at idle. Actually quite funny, it gets so deep the bass starts to drown out the chop on my iPhone mic lol.

https://www.facebook.com/vittuned/vi...7067570504909/

Elmo370z

So i plan to stay N/A, Hopefully in the near future I"ll be able to afford a dry sump and B.R. billet crank to build the bottom end to rev safely rev to 9k. Similar to OnPoint DYno's 350z, do you think ecu tek would be more than plenty or could this kit greatly improve tuning capabilities over ecu tek.

VitViper

The goal of any good TC system is to run the car at the limit at the tire without hurting acceleration. The M1 does this with ease.

The stock ECU sucks at this, as it's designed to keep you from wrecking and nothing more.

ECUTek will never touch the logic in the motec, I've already spent a lot of time adjusting settings and with a turbo car you'll still spin the tire (especially 1st gear) even if you pull AALL the timing out of it (this motor just makes a ton of torque with twins lol). I have an intricate timing + throttle pull on my ECUTek map, the results are "meh" and nowhere near optimal. Better than the stock VDC, but not even 1% of a motec, lol

Yes this will in at least one facet -- you can setup a shift light module in the car to let you know when you're at 9k or higher -- the stock tach goes to 9k but the CAN bus RPM data only goes to 8400, trust me. lol

Beyond that I can't really answer that -- everyone has their own goals and needs. I just converted an 07 Civic Si to an M1 and built the car a dual fuel system firmware package for the ECU -- goes between E85 and M5 fuel at the flip of a switch in the car (4 cylinder 2.5L motor with 8 injectors, 2 pumps, 2 regulators. eg, two complete and segregated fuel systems run by the ECU based on driver demand).