beaterX project thread

[Halon]

good job primo!

[mlomker]

I'll have to do an early friday tonight...must see dynoing.

I'm showing up for lunch. Dyno day BBQ ftw.

[Murlo26]

I'm showing up for lunch. Dyno day BBQ ftw.

There might not be any cars left to dyno by then, but lunch time is for sure and E85 conversion is a maybe:)

[scheides]

1680's installed. Physical install was a cinch, took maybe 20 minutes; the fuel rail is right on top/front on the X so this was completely painless.

Initial settings I had from the guy I got them from didn't work worth a crap, the car idled at 8:1 and sputtered and died. Tried some more settings published on evoM with again, no luck. Then I realized that mrfred had posted some values from a car he had done with a cobb AP.

2.625
1.395
0.825
0.660
0.600
0.555
0.540

he posted E85 scaling: 943
Pump scaling I guessed, ~1.3*943: 1329

Last summer tephra figured out that the original algorithm used to display latencies and I could apply that and use mrfred's values for the cobb car. (link: http://forums.evolutionm.net/evo-x-engine-management-tuning-forums/509774-injector-latency-algorithm-change.html) Still no luck. Car starts and runs good for a few secs above 2000 then as soon as it goes below 1500 it just goes pig pig rich again.

My logger is goofed up for some reason, but I'm thinking that the ecu simply won't drop pulsewidth low enough, so I applied tephra's minimum IPW hack:
http://forums.evolutionm.net/evo-x-engine-management-tuning-forums/509974-minimum-ipw-info-resolution-patch.html

Dropped MinimumIPW down one notch from .040 to .032. flash, start car, bam, fukin starts perfect, revs to 2000-3000 w/o any stumbling or issues, and it idles like a champ. Took the car around the 'block', initial short-term fuel trims look fine so I give it a few brief wot runs, just around 4000, into a little boost to check afrs.

Sad news, wideband in the car is flatlined at 0v again. No knock on the wot runs though, so I guess I'll just be driving around nicely and checking fuel trims until I get a new sensor.

*edit* hit the recalibrate button for the LC-1 and it's come back to life. I'll be testing this setup a bit until the tank is dry....then it's time to sell my soul to the corn gods :P

[scheides]

Oh also, changed the oil today. 3100 miles on this oil, the car didn't burn a drop. I don't say it often enough, but I want to thank MAP for a stout shortblock and DB Performance for a solid head. And while I'm at it, CBRD Speed Factory for such a bad-ass 100% stock-appearing turbo!

http://www.scheides.com/albums/evoX/evox_pumpgas_final.sized.jpg

We'll see how well it holds boost once we turn it up to ~30 for the e85 tune.

[Kracka]

Very nice!

[goodhart]

Man, you always get such awesomely rock solid boost. I love it.

[awd-drifter]

saw the video of your dyno...your x sounds insane man.

[C3L1CA]

Very nice work! I'm excited to see some e85 numbers out of it!

[CornFed2.4]

good work! Also, cant wait to see what it does on E85.