Tacoma - OVTUNE - VFTUNER - Update Info and Original Development

Im still running on the stock 91 Alpha tune. Since then Ive installed a intake and plan on exhaust, would love some fine tuning to dial it all in. @OVTune will we have this option eventually available to us?

 

yes, this is is mainly for remote customers who want to get dialed in all in a day, but yes.


I should have any pending files out tonight.

 

Ok great thanks for the lightning fast response. When you say pending files Im assuming thats in regards to the stock alpha 1.01 tune files that haven't yet been sent out?

 

Right, there are 2 ECU versions I'm finishing support for, and about 10 people with emails pending on getting their 1.01 calibrations

 

With virtually all of us too far for dyno tuning @ ovtuned and having future modification plans that may require one off tuning, is this tuning solution locked down to the provided file, or will the tactrix cable and program allow for custom, independent tuning?

 

No independent tuning at this time, or in the foreseeable future. The calibration logic is quite complex and we have not considered releasing our reverse engineering development to the public. Just finding the correct formulas to convert hex data is something completely proprietary which we will never release.

Each file is also individually licensed to the truck it is flashed on based on an OEM calculated algorithm result.

 

Hate to assume but I figure to many variables exist for 1 per say intake, 1 exhaust, 1 intake with exhaust tunes and whatever bolt on modifications that'll eventually be on market. The market as of now has many intake options with exhausts options soon to follow. To have a truly good tune we will need to send in datalogs and the tuning will need to be done per individual and their set-up. Please correct me if Im wrong.

 

As far as intakes, you are correct. Exhaust is not going to take much changes to the tune, because the exhaust system isn't really "customization". There is no header configuration, no tuned primaries, nothing of the sort. In my experience tuning naturally aspirated cars, the only necessary changes to a tune from exhaust are made when a header is involved. A cat back, or axleback rarely, if ever, needs custom tuning. The fact this engine does not have a header at all eliminates the process entirely.


Also, in terms of our logger, our initial logger release is only going to have the information to capture raw CAN packets. We will decode them on our side. In time we will have a release version that have user view able stuff. Just the proprietary PIDs will not have the formulas enabled. (so log value is raw)

I understand this is different than what is normally out on the tuning market for cars, like cobb where you can play around with maps yourself, or ECUFlash / Romraider / etc where you can do almost anything.. but decoding the CAN packets, finding the PID addresses, understanding the formulas for both the PID and Table values is extremely exhaustive, time consuming, and expensive work. We simply cannot release any of the proprietary information because it is too translatable with other toyota and lexus vehicles.

 

I thought that toyota had very restrictive exhaust so an upgrade would have some beneficial results??? Did I read something wrong from previous posts?

 

I agree but at the same time one who runs an exhaust that deletes 2 catalytic converters vs the guy whos running just a cat back the tuning would have to be different to compensate for the extra air flow all dependent on the design of said installed exhaust no? Im just trying to make clear that fine tuning based on what bolt ons installed will need to be done to achieve maximum performance. I know you are busy so i thank you for the responses!

 

I am not asking for any release of proprietary information Matt. Im just stating like other tuning solutions on the market for other platforms datalogs will need to be gathered, analyzed and adjusted to have a truly good tune especially for those who change oem parts for aftermarket performance parts.

 

You are understanding correctly. An exhaust will definitely help this engine. What I am saying is that there aren't intricate tune changes required from one exhaust system to another because the main changes in a tune are done from HEADER design, not catback or axleback. This engine does not have a header.

You are correct yes, but we wouldn't need to make many different versions of tunes, because the exhaust system is relatively simple.

So our calibration setup for exhaust would be as follows:
OEM - stock exhaust
"downpipe" with cat
"downpipe" without cat
Full exhaust w/ cat
Full exhaust no cats.


What I am saying is that lets say you have a "URD" mid pipe and swap out to a "magnaflow" midpipe. Generall, the tune would not be changed.
Or if you have a "URD" downpipe catless and swapped to a "ebay" downpipe catless. No actual difference except quality.

There is no "shorty header" or "long tube header" type of tune adjustments because the car has no header. It eliminates a lot of custom adjustments to VVT.

I completely agree. I dont think we ever said we won't have a logger and custom tuning. Quite the opposite. I think the thing is people are really eager to get things going,=but before I start to release more and more, I don't want any current customer who is waiting patiently to be left behind. As I mentioned this community is 10x what I anticipated, I'm trying to catch up to the demand as fast as I can. I do all the development, all calibration code myself. Just today I spent another 6 hours decoding more CANbus data with our mule. It's coming.

 

This is like my tune on an m3, it's locked to vin.
I went to dyno my m3, turned out to be leaning out up top, dyno operator(and an avid Bmw tuner) tried making adjustments to no avail. Best bet is you send raw dyno data to tuner he sends you a file based off what he sees going on on dynograph

 

Thank you sir! Agree 100%. Just wanted clarification that tunes will be based on individual set ups....stock, intakes, exhaust variations. Thanks again!

 

Dont get me wrong, not trying to bust your balls! I know the work you put in is extensive, no doubt at all. You keep doing what you do, you're good at it!

 

one of my favorite parts of this kind of project is that every version improves the driving. can't wait to install 1.01 and then watch it get better and better as the development unfolds over time. love it!

 

@OVTune

Does it make sense to use Techstream to 'Reset Learned Values' for the engine before applying the tune and switching to higher octane fuel?

 

No need, flashing it resets it. Our you can use the clear DTC option in the software

 

Great, thanks for the quick response!

 

I think your talking about something like this..

https://ftecu.com/

I have their whole system on my bike, spent some time tinkering with it at first, but after a while it learns on its own. So my tune is unique to my setup.

You buy a license for a single bike and you can tune it all you want. An independent tuner can buy a license for your bike and tune it for you over and over as needed. Something for @OVTune to consider.