Evo X upgrades - Page 69

**scheides** · 08-30-2010

Let's see, maf is 36% bigger so drop maf scaling by about that much, injectors are double, so 2x scaling + the new injector latency fix and use the supplied (?) latencies, then put in psi-boost hack w/ zero CF, fire up the car, cross fingers and go baby go!

Just kidding, it's a little more involved than that. I will be very interested to see how the psi-based boost control works out for ya on the street!

**mlomker** · 08-30-2010

Quote:

Originally Posted by scheides

cross fingers and go baby go!

That's so damn easy, why bother with Shane?

**scheides** · 08-30-2010

Quote:

Originally Posted by mlomker

That's so damn easy, why bother with Shane?

Blasphemy! The man is filled with bad, bad ideas to make every car faster/better

**Murlo26** · 08-31-2010

30-32...sigh...lomker you wuss.

Have I taught you nothing..you need at least 34 psi to make the torque of a 4g63, you don't want to look stupid do you

Ps. I am excited to see what this setup has in it finally...

After months of waiting we will know if the BBX has motor breaking potential in it

**asshanson** · 08-31-2010

What do you mean by PSI based boost control? That doesn't make sense to me as PSI = boost. Do you mean RPM boost control? Sorry I'm a newb I guess.

**mlomker** · 08-31-2010

Quote:

Originally Posted by asshanson

Do you mean RPM boost control?

I'm not an ECU geek, that's just what Tephra calls it. By default the X uses load targets and you can't actually tell it to hit a particular psi target. Every dyno you run the car on will hit a different peak boost because it loads the car differently.

The best analogy I've heard is that it will behave like an ECU-adjusted MBC afterward.

http://www.evoxforums.com/forums/sho...893#post522893

**scheides** · 08-31-2010

^Once properly setup that's the idea! Load-based systems work, but they are error prone and thus inconsistent. The biggest saving grace on the X is that it has a low gear range and high gear range have separate base wasgtegate duty cycle (WGDC) tables, which in helps a LOT in the real world.

**asshanson** · 08-31-2010

Gotcha, now it makes more sense.

**Shane@DBPerformance** · 08-31-2010

Quote:

Originally Posted by scheides

Let's see, maf is 36% bigger so drop maf scaling by about that much

English major? I don't know where you got 36% from.

Quote:

injectors are double, so 2x scaling + the new injector latency fix and use the supplied (?) latencies

1000cc * 2 != 2200cc. And nothing works right with the huge injectors as far as just doing simple scaling for the size.

Quote:

then put in psi-boost hack w/ zero CF

Done. PSI base still isn't perfect since it's based on absolute pressure instead of gauge pressure, which most people talk about and absolute will change from day to day based on the barometric pressure, but that's fairly minor.

Well, back to work. The intake scaled fairly decent. Now on to switching the injectors and trying to get the 2200s to behave.

**Murlo26** · 08-31-2010

Sweet, now you will have some MAF scalings for my car

Let us know how the injectors work out

**mlomker** · 08-31-2010

Quote:

Originally Posted by ecoli

1000cc * 2 != 2200cc.

Dave's DW1300's are 1400 and my ID2000's are 2240. The injector companies take a horseshoe approach...

**Murlo26** · 08-31-2010

Updates?? Are you at work still Lomker or at DB for the tune...if I get no answer I assume you are at DB

**mlomker** · 08-31-2010

Quote:

Originally Posted by Murlo26

Updates?? Are you at work still Lomker or at DB for the tune...if I get no answer I assume you are at DB

My Dad helped me drop it off last night. I want to save my vacation days for car events.

**Murlo26** · 08-31-2010

Quote:

Originally Posted by mlomker

My Dad helped me drop it off last night. I want to save my vacation days for car events.

Fair enough, you picking it up later then I assume?

**mlomker** · 08-31-2010

Quote:

Originally Posted by Murlo26

Fair enough, you picking it up later then I assume?

If it is done today then I'll get it over lunch tomorrow. I want to install the APR splitter next weekend, otherwise I don't care much.

**mlomker** · 08-31-2010

My fueling problems continue. 20psi drop in pressure at 7k rpms. Shane is going to check the voltage to the Bosch and I suppose the inline fuel filter should be checked.

The Mitsu gods don't love me.

**Murlo26** · 08-31-2010

Geez...why do they hate you so???? Did you anger them? Are you sure you aren't running out of pump, no idea how much that one is supposed to flow.

GG_9_SE · 08-31-2010

Quote:

Originally Posted by Murlo26

Geez...why do they hate you so???? Did you anger them? Are you sure you aren't running out of pump, no idea how much that one is supposed to flow.

If he is running out of pump with 3 fuel pumps total, then i would just say fuck it and reutrn to stock

**mlomker** · 08-31-2010

Quote:

Originally Posted by GG_9_SE

i would just say fuck it and reutrn to stock

If I wasn't so deep into this car it'd be getting parted out next week. I'll wait to hear from Shane about what voltages the pump was getting since that'll dictate where to go from here.

I may just have to live with this power level until next year. I could save over the Winter for a fuel cell and just take another step toward hard core.

turbotalon1g · 08-31-2010

DO it.