Great thread man, thank you.

 

NO!!!!!!!!!!!!!!!!!!!!!!!

Do not try to lean the car to 13:1!!!!!!

An NA motor will make best power between 13:1 and 12:1 IF the motor is not detonation limited.

That is way too lean for a boosted motor without race gas. Be safe and shoot for 11:1 to 10.5:1 range for now.

 

HAHA, I stole the BPU from the Supra community. It stands for: Basic Performance Upgrade (think bolt-ons).

Of course to autocrossers like us, we would know what BSP (B Class Street Prepared) stands for!

Good catch.

`Gus

 

Yes you're right. It was a miscommunication on my part

After speaking with a few local tuner shops in the area, the 13:1 I was told is meant for NA motors.

I've read the following for Turbo 4cylinders

• On Pump 93 :: 11:1
• On Race Gas :: 11.8:1 - 12.1:1 or leaner depending on Octane or if the car is Alcohol/Water Inj equipped

But then again there are people quoting leaner numbers too. Not sure who to trust in this number game.

It all depends on how "daring" you are I would say!

`Gus

 

I've personally run 11.8:1 with a bit of boost on 93 with no ill effects. The motor obviously loves it with the wonderful noises it makes. However, when the weather got colder, I decided to aim a little lower and am currently running ~11.5:1 and tapering down to ~11.2:1.

I run around 11.9:1 on toluene and jack up the timing by about 4* up top ... these cars BEG to go faster.

 

I run 11.8-12.0 with no issues on 93......11:1 is too rich imo

 

So any updates?

 

Thanks Gus,
You have one of the greatest thread I've came across on this board, keep up the great work. We are all beneficiary of your effort and you got a PM for some help.

 

Wonderful thread! Thanks for the time and effort.

I purchased a new MR last April and it is still bone stock. If there is anything I can do to help please let me know. I am looking to get prepared to modify with an intent to stay stock for a while longer. The itch is hard not to scratch but I know I'll need that warranty for something (owner of a DSM).

In preparation for modifications later, I want to learn the tuning process. I plan on obtaining the basics to start getting familiar with tuning. My plan is to start purchasing mods now so I don't blow a big hole in my pocket all at once. I am going to install the parts in stages so that I can dyno and tune often to see the improvements. I was hoping to keep a detailed history for the benefit of all.

Keep us updated and let me know if I can help having a stock 9 MR!

-Brian

 

Yo Everyone!

Thanks for keeping this thread alive, and I apologize for the dissappearance for the holiday season. As some of you know, I've been traveling in SoCal visiting family and friends (planning on moving "back" here soon), so I have to make sure I secure a few things before that happens.

I will be returning to CT by the end of January and it seems like I'll be setting up a datalogging session with Max!

Thank you MAX for your donation toward the Project Evo Tuning!!!!

<I've honored your contribution by editing the first post of this thread>

`Gus

 

This thread is a great read! Gus, you'll need to re log my car AGAIN since it will no longer be stock

Did you have a chance to compile the runs we did after we fixed my WG?

 

Yea, I do have your data. I also have Henry's data too! I will be compiling them when I return to CT.

Yo someone find me a 8 MR!!!

`Gus

 

This may be a starting point on a N/A car but catastrophic engine failure AFR for a turbocharged engine.

Do NOT attempt to run 13+AFR on a boosted engine.

Let us know if you are interested in obtaining a zeitronix wideband for your data aquisition needs.