High_PSI

iTrader: (50)

Great thread man, thank you.

Mad_SB

iTrader: (8)

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.

PSG Evo

iTrader: (5)

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

PSG Evo

iTrader: (5)

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

TouringBubble

iTrader: (2)

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.

travman

iTrader: (26)

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

Dorikun

So any updates?

madmax199

iTrader: (20)

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.

4G63 4EVR

iTrader: (2)

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

PSG Evo

iTrader: (5)

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

Solo II Evo

iTrader: (29)

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?

PSG Evo

iTrader: (5)

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

TTP Engineering

iTrader: (465)

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.