Wide Body Street car/Time attack build

[litu]

Cool project, looking good

[meltingmanmedia]

long time no post I guess...

I took my car to my jobs shop well over a year ago, and very quickly regretted it. Being there on the weekends to work on this, along with being there all week made me lose interest in working on it or being there any longer than I needed to be.

This weekend I brought it to my parent's house after spending the previous weekend making the garage usable. I spent a lot of time cleaning up some of the wiring, washing the car, and messing with the tune a little. Im super new to the whole tuning myself thing (ms2pnp), so if anyone has any tables i can reference for an NA M20 please send them my way! I'd like to get the car running as well as I possibly can before throwing boost at it later this year. Its running pretty decent at least in the lower portion of the tables, the VE table still confuses me a little in conjunction with the AFR table, but ill read up on this in my spare time.

Anyway, here are some pics from the weekend. Ignore the whole rear of the car still being as structurally sound as a soda can... throwing tubing in the rear with the help of a buddy asap!

[Panici]

Glad you've got some motivation back. It's a killer on big projects for sure.


Do you have your "Incorporate AFR" setting enabled in TunerStudio?

If this option is on, your VE table will closely resemble the actual Volumetric Efficiency (airflow/pumping ability) of the engine, and you'll dial in the AFR you want in the AFR table.
If the option is off, your VE table will be skewed to reflect what AFR numbers you want, and the AFR table is just for reference (and closed-loop O2 control if that's enabled).

Note that if you change the option, you'll have to redo the roughed in VE table.

[moatilliatta]

What’s next?

[meltingmanmedia]

Glad you've got some motivation back. It's a killer on big projects for sure.


Do you have your "Incorporate AFR" setting enabled in TunerStudio?

If this option is on, your VE table will closely resemble the actual Volumetric Efficiency (airflow/pumping ability) of the engine, and you'll dial in the AFR you want in the AFR table.
If the option is off, your VE table will be skewed to reflect what AFR numbers you want, and the AFR table is just for reference (and closed-loop O2 control if that's enabled).

Note that if you change the option, you'll have to redo the roughed in VE table.

I am as well, it feels good. Still working up to filming the progress again haha.

I have "incororate AFR" turned on currently and the car runs okay. Good enough to drive to the gas station and back. Ive just not found a good reference on what the AFR table or VE table should look like in a ball park way for an N/A car, everything is turbo... This is all pretty new to me

So basically with it turned on i can adjust the fuel table and put it in "auto tune" for instance and let it correct the VE table? Assuming everything else is setup as it should be

[meltingmanmedia]

What’s next?

The to-do list keeps growing the more I think about it, i should probably start writing some of it down...

This weekend I'm going to try to tackle making the core support removable and nicer looking since my front bumper is taking me a lot longer than I'd like. I want to be able to pull the motor and trans from the front since I'm planning to order turbo stuff soon and would like to clean up the engine bay while I'm at it and not try to deal with doing all of that with the engine still in the car.

I'm trying to clean up some of my "rushed content jobs" that I did just for work YouTube videos. I need to add tubing for a rear crash structure and fuel cell, weld in reinforcement strut tower boxes into the rear of the car ASAP, make a tubing bumper support/crash bar for the front and paint a whole lot of crap to feel better. I also need to drop the rear subframe again to weld all the alignment and strength goodies on, and probably get rid of my rear wheel gap while I'm at it.

I keep going back and forth between wanting to down the car for a while to do lots of things, or down the car for a little bit to enjoy through the summer and do the big projects like turbo and rip the wrap off during winter.

[moatilliatta]

The mind is a terrible place to clutter with a task list.. .

Find a time trial class to run it?

[Panici]

Ive just not found a good reference on what the AFR table or VE table should look like in a ball park way for an N/A car, everything is turbo... This is all pretty new to me

So basically with it turned on i can adjust the fuel table and put it in "auto tune" for instance and let it correct the VE table? Assuming everything else is setup as it should be

You can look at a turbo map for N/A reference. Just ignore any of the top rows above 100kpa.
An N/A car will be at or near 100kpa at sea level during WOT.

Once you have the AFR table set, the "auto tune" will adjust your VE table to try and hit those AFR targets.
It's only good to rough in a tune though, you need to manually look at datalogs and compare your AFR target vs wideband O2, and adjust the VE table as required.

[meltingmanmedia]

The mind is a terrible place to clutter with a task list.. .

Find a time trial class to run it?

It definitely is haha. I dug a whiteboard out of the corner of the garage on Sunday so ill probably fill it with stuff this weekend.

But as far as competing in a class, I'm not sure it would fall under anything other than something like unlimited once it's at the point I would like for it to be haha. But we will see, I haven't even thought about it too much since it's so far from that point in my eyes, but im going to go shoot at Super lap battle at COTA in March and I'm sure that will light a fire under my ass to figure it out haha.

[meltingmanmedia]

You can look at a turbo map for N/A reference. Just ignore any of the top rows above 100kpa.
An N/A car will be at or near 100kpa at sea level during WOT.

Once you have the AFR table set, the "auto tune" will adjust your VE table to try and hit those AFR targets.
It's only good to rough in a tune though, you need to manually look at datalogs and compare your AFR target vs wideband O2, and adjust the VE table as required.

okay sweet. Thank you for the insight!

[Panici]

okay sweet. Thank you for the insight!

You're welcome.

Feel free to shoot any tuning questions my way.
I'm by no means an expert but I've street tuned both my E30 and turbo Miata now, and they run fantastic.

[2mAn]

E30Bastard Help this man out with his MSPNP ... he is going down a similar path

[meltingmanmedia]

So just as an update to this in regards to my tuning:

The base file on the MS2 extra pnp that I have has the Tooth #1-degree angle set to 97*. From what I've read, most cars are between 84-88 degrees. So that's now added to the list of things I need to address before messing with any more tune-related stuff.

[Panici]

So just as an update to this in regards to my tuning:

The base file on the MS2 extra pnp that I have has the Tooth #1-degree angle set to 97*. From what I've read, most cars are between 84-88 degrees. So that's now added to the list of things I need to address before messing with any more tune-related stuff.

You need to set base timing for your car. You'll need a timing light.
This is the first thing you should do with a standalone install.

You can lock timing to a fixed value in tunerstudio and verify that it matches with your light pointed at the crank pully marks.

[meltingmanmedia]

You need to set base timing for your car. You'll need a timing light.
This is the first thing you should do with a standalone install.

You can lock timing to a fixed value in tunerstudio and verify that it matches with your light pointed at the crank pully marks.

That's the first thing on my list for this weekend. Getting a timing light tonight!