Dumb Ass Teenager Turbo/Body Work/Respray Learning Experience Build Thread

[Jafxod]

I honestly wouldn't run a turbo without a turbo chip/MS. I'd be nervous the whole time while driving it.

What are the risks and what would be the next best solution. Are there any turbo specific m50 chips? Could I tune a war chip to do so?

[jaywood]

Yes I do.

I honestly wouldn't run a turbo without a turbo chip/MS. I'd be nervous the whole time while driving it.

[Jafxod]

Do you already have a performance chip or something?

Yes I do.

[jaywood]

Keep in mind. Im not trying to skimp out, I just dont have high goals and simplicity is the main goal here.

Do you already have a performance chip or something?

[Jafxod]

Keep in mind. Im not trying to skimp out, I just dont have high goals and simplicity is the main goal here.

[Jafxod]

What would happen if i tried to run my m50 with just a performance chip?

[jaywood]

Thanks man. Could you go into more detail on the install and tuning? What kind of numbers are you putting down?

Hehe, thanks ^^^ ;)


Here's the run down (keep in mind.. this is all on an m20): I used the AFM wheel to get my idle to stoich with the bigger injectors (14.7 on wideband). I guess you're not supposed to tune like this though. You're supposed to tune for the lowest vac value, not AFR's. The RRFPR goes in-line with the fuel return. Adjust fuel pressure at idle to ~47psi (somewhere around there). I have a turbo chip, nothing fancy. It came from eBay I bet. It says bosch turbo on it. I got a manual boost controller from some company, I forgot the name. It's pretty cool, it works

[Jafxod]

M50nv has no knock sensors lol

[einstein57]

With out a tune your basically leaving the fate of your engine up to the effectiveness of the factory knock sensor. A war chip will allow you to pull a few degrees of timing yourself and make adjustments for the larger injectors. You can probably find some general m50 base maps on e30tech.

[Jafxod]

Thoughts on tuning with WAR chip?

[Jafxod]

BTW just went through your build thread. If I was a girl i would marry you. Such good work man. Respect.

[Jafxod]

On my m20 I have:


RRFPR
30lb injectors. 24lb's are pretty small.
Stock AFM
Wideband LC-1
Wastegate with ~8lb spring (I have a boost controller)

Thanks man. Could you go into more detail on the install and tuning? What kind of numbers are you putting down?

[jaywood]

On my m20 I have:


RRFPR
30lb injectors. 24lb's are pretty small.
Stock AFM
Wideband LC-1
Wastegate with ~8lb spring (I have a boost controller)

[Jafxod]

Okay can someone confirm this tuning plan.

RRFPR
24lbs Injectors
Stock MAF
Wideband
Wastegate with 7psi spring


Should that be OK?

[Jafxod]

There is no chip turbo tune for the NV engine. I would look into megasquirt for tuning.

The guy who I bought most of the parts from was using mechanical tuning and low boost. Is doing thats THAT bad? How hard is it to wire up megasquirt?
Thanks