Taking a journey through pain and a misfortune. A speed6 saga.

[Crazycanadian]

It's that time of year again where the summer fun has come and gone. I've got time to brows the forums, sit back relax a bit and prep for next years adventures.

I haven't spent much time with my Speed 6 in the last 6 - 7 months. My son was hit while driving his Mx3 we rebuilt. No one was hurt, it wasn't a hard hit, but it was enough for insurance to write the car off. As luck would have it a friend of mine was looking to down size his car collection. In that collection was a 1993 Mazda Protege, 25th Anniversary Canadian GT edition. This is a 1 of 500 Canadian only model. Poor thing had been sitting in a field since 2019.


What's so special about this car you might ask? A couple of reasons. This car got a JDM interior and some other JDM bits not available in the North American market. This perticular car was owned by a close friend of mine who passed away in 2018. Time to resurect the dead.

Since the Mx3 and Proteges chassis share a lot in common, my son and I stripped the Mx3 down and used it as a parts donar to bring this Protege back to life. The interior of the Protege got completely stripped down since there had been rodent issues, everything got cleaned and sanatized. We had to go through all the doors to clean, lubricate and free up the locks, window regulators ect. The KLG4 V6 from the Mx3 got installed. It's been quite the project.


It's still not finshed but it's now drivable as we sort out some of the teething issues from such a big project.



After a cut and polish the paint is still quite ruff. Sitting in the field has done some damage that's not reparable, but from 5 - 10 feet away the car looks fantastic.

 

[Raider]

That is badass!

 

[Crazycanadian]

While the Protege project was under way, "Princess" came out to play. This is my autocross/track focused Mazda 323. It was originally built by my friend who passed away in 2018. Yep, the same friend who owned the Protege. Him and I spent a number of years building our cars and racing together. It's been a great adventure running this car in memory of him. Kiddo and I spent the summer going to local autocross races, and doing some travelling. We hit up the Canadian nationals and Packwood for the Solo National Tour event.
He built Princess the car got stripped down. All of the suspension components and sub-frames were powder coated. He was a master when it came to paint correction and restoration work.

 

[Crazycanadian]

With those updates out of the way, how about we get back to the Speed 6 and some of the tuning stuff I've been playing around with. Anyone interested in a MAF tuning excel sheet? After doing a bunch of MAF tuning on Fords and GM's I built this sheet to mimic what you can do in the HPtuners world.

There's room to stack mutple logs, adjust what percentage of a change you are making plus compare multiple MAF cals. There's a graph to look at. I use this along side Megalogviewer so that I can easily do some copy past work when making changes.

 

[Crazycanadian]

Remember a previous post I made where I showed you how it was possible to calculate the theoretical crank HP?

I started with the stock WOT air load command,

Sent it through some basic calculations, dove into the stock VE map a little bit.. and spit out this image?


If you don't go back 1 page, enjoy the read.. cause I am going to slowly build on it.. I started out with 1 question. What if it was possible to calculate your entire APP command table? That spiraled into, What if you could have 1 table that shows you the commanded AFRs? Spark map? DBW map perhaps? Is it possible to use some of this to help estimate or maybe even calculate a good ball park for your load limits, boost limits and safety cut off limits?


Ok I don't have the safety cut stuff figured out yet.. This other stuff is pretty ruff since I don't have a full understanding or a dyno to properly test some of the tables I that need to be used.. but then again this isn't meant to be 100% accurate. It's meant to give someone a decent ball park and a way to understand the sea of tables available... If you've looked through the stock tune files, you might think WTF is Mazda thinking, why is there so many Closed Loop Max tables, what the hell do they do?

Why is there multiple closed loop fuel tables, open loop fuel tables and then WOT fuel tables...How does it all get put together? When can I expect 1 table to be used vs another table... How can I sort out some odd things I might see while tuning?..


This is the rabbit hole I've been diving down..In the GM world where there's lots of very in depth conversations around this kind of stuff on the forums. I am hoping to spark some more of that here as I go along.. So chime in with your comments. I am not fragile, you wont hurt my internet feelings by calling me an idiot..