What did you do today to your 3/S?

Blackey, get them to send that sheet. I want a peak at the power curve.

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Originally Posted by keo92stealth

Oh shit. How much fuel pressure does it have?? I only got to drive mines once since I did the switch. I took it to 4500 to 5K and I don't recall any missing for me but I didn't stomp on it and my turbos weren't even spooled yet lol. Damn I need to get mines running so we can compare.

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I have the stock FPR. I don't have upgraded lines but I will buy some soon. I have the AFPR and electronic fuel gauge from my previous setup so I'll get those hooked up when I buy the lines. My AFR doesn't lean out or anything. I'm getting enough fuel. It's definitely a misfire because I can even hear it at idle or cruising. It isn't really bad until I give it more throttle than that. I'll try swapping the plugs first, then wires, coils, PTU, fuel filter, etc until I figure out the issue. It may just be that the ARC-2 can't handle 1000s on ethanol since it is load based, advances the timing for bigger injectors, and just may not be able to work correctly even though in theory it should. I will have some 720s to try soon if that's the case. I swapped out multiple things at once which will just take a little more troubleshooting to figure out the problem. I'll let you know though. I may get some dyno numbers first before I swap in the flashed ECU.

What's your AFR look like? Too rich and e85 will "misfire" easily.

Oh and in the spirit of the thread...MTC received my turbos to be looked over and I sent my FIC 1350s out to be cleaned and flowed. Last things that haven't been double checked on my build.

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Originally Posted by james92tsi

More of a total weekend update than just today. :)

Fixed the slop in my shifter, swapped to flash ECU, and took her to a GTO meet (Holdens, not Mitsus...) with a bunch of friends.

The source of most of my shifter slop. There are supposed to be 2 plastic bushings here, but all I had was a pile of 1990 plastic dust and a gap to fill. This was causing lots of left-right slop since this arm connects the shifter to the select (left-right) cable.

Attachment 4347

So I made my own bushing out of this brass hose barb. The ID was already a match, so I turned down the OD freehand on the bench grinder, then cut it to length. The dead plastic bushings also had collars on them, so I used an additional washer to take up the endplay. It's a nice fit now.

Attachment 4343

Reinstalled the shfiter base in the car with aluminum floor bushings, and Seattle shifter. (Made the fun discovery that one can get the shifter base out without removing the floor console if the radio and ECU are removed.)

Still need to install brass bushings at the trans next time I have the MAS and IC pipe out of the way.

Attachment 4345

And finally installed the SmokinVR4 (is that name still a dirty word?) shifter ring I've had laying around for years.

Attachment 4349

And cleaned up the engine bay. It'd been a while. Can't go to a meet with a dirty bay. :)

Attachment 4348

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I'll have to keep my eye out for that next time the shift boot is up... And I like the smokin' shift ring! Clean engine bay.

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Originally Posted by AdamVR4

I'll have to keep my eye out for that next time the shift boot is up... And I like the smokin' shift ring! Clean engine bay.

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Thanks! Here's the parts diagram. I was fortunate to have the right size brass barb laying around waiting to be mangled into something else.

Attachment 4350

And more good info... stock 91 shifter vs. Supermac / Ultimate Racing shifter vs. Seattle VR4 / Pauly Perl roller bearing shifter.

Attachment 4351

Got ECUs? :)

Attachment 4352

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Originally Posted by TurboSinceBirth

I have the stock FPR. I don't have upgraded lines but I will buy some soon. I have the AFPR and electronic fuel gauge from my previous setup so I'll get those hooked up when I buy the lines. My AFR doesn't lean out or anything. I'm getting enough fuel. It's definitely a misfire because I can even hear it at idle or cruising. It isn't really bad until I give it more throttle than that. I'll try swapping the plugs first, then wires, coils, PTU, fuel filter, etc until I figure out the issue. It may just be that the ARC-2 can't handle 1000s on ethanol since it is load based, advances the timing for bigger injectors, and just may not be able to work correctly even though in theory it should. I will have some 720s to try soon if that's the case. I swapped out multiple things at once which will just take a little more troubleshooting to figure out the problem. I'll let you know though. I may get some dyno numbers first before I swap in the flashed ECU.

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Ok yes track that down and let me know how it goes bro.

Swapped out my leaky oil cooler line for another one. Must've been a bad fitting. Hans made me a brand new one when I stopped at the shop. Tomorrow I'll throw it on the lift at work and check up on it. Also got a thumbs up from a clean wrx on the way to the gym.

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Originally Posted by familyMAN

What's your AFR look like? Too rich and e85 will "misfire" easily.

Oh and in the spirit of the thread...MTC received my turbos to be looked over and I sent my FIC 1350s out to be cleaned and flowed. Last things that haven't been double checked on my build.

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Low loads around 1-3k rpms it's around 14s high 13s AFR. The only time it went into 11s was when I would let off the throttle and put it in neutral. I have an open atmosphere BOV causing rich shifts. After a few seconds it returns to high 14s idle.

I swapped back to the projected tip plugs I was running and it made no difference. I didn't have time to mess with anything else. I'm beginning to think that while the ARC-2 can handle the fuel control between it and the computer the signal just won't work. Timing is advanced a 2-3 degrees more based off the high octane timing map on a 99 VR-4 ECU so I don't think that's the problem. I will try swapping more ignition components later and a few other things. This didn't happen until the plugs and injectors were swapped. I already ruled out the former so I'm pretty sure a better engine management is needed. I better finish up my ECU adapter harness. :p Been too lazy. Haha.

stillllll hovering.

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Originally Posted by TurboSinceBirth

Low loads around 1-3k rpms it's around 14s high 13s AFR. The only time it went into 11s was when I would let off the throttle and put it in neutral. I have an open atmosphere BOV causing rich shifts. After a few seconds it returns to high 14s idle.

I swapped back to the projected tip plugs I was running and it made no difference. I didn't have time to mess with anything else. I'm beginning to think that while the ARC-2 can handle the fuel control between it and the computer the signal just won't work. Timing is advanced a 2-3 degrees more based off the high octane timing map on a 99 VR-4 ECU so I don't think that's the problem. I will try swapping more ignition components later and a few other things. This didn't happen until the plugs and injectors were swapped. I already ruled out the former so I'm pretty sure a better engine management is needed. I better finish up my ECU adapter harness. :p Been too lazy. Haha.

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So your ditching the arc2??