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Fuel cut?

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Old Aug 10, 2007 | 09:55 AM
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electricevo's Avatar
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From: MA
Fuel cut?

I Recently installed the evogreen turbo on my car and when i full throttle the car, i hit what appears to be fuel cut (car stops making power instantly). I put in 880cc injectors they are scaled properly.

The boost is between 26-27psi with no taper (i have the high performance actuator that makes the boost spike)

Any ideas how to remedy this? I already tried lessening the preload on the actuator arm itself, turned my MBC all the way down, and now im stumped. The boost was really high...See PIC.



After turning the WGA arm down 5 turns, i hit constant 27psi, then fuel/boost cut.

Is there setting in ECUflash that i have to mess with to run this much boost?

Full mod list:

Evo green turbo (ported, coated, 18psi actuator)
BR 02 housing
Nisei FMIC
HPF LICP
880cc injectors
HKS RS intake
Halman MBC (turned all the way off)
Cosworth evo 9 cams
ARP headstuds
BR 3" turbo back exhaust catless
Self tune via ECUflash

Other mods too, but they wouldnt really effect this issue.

Last edited by electricevo; Aug 10, 2007 at 10:15 AM.
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Old Aug 10, 2007 | 09:57 AM
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remove the fuel cut or move it up to how ever much you spike at with the flash
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Old Aug 10, 2007 | 10:00 AM
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How would i do this? What setting is changed in ECUflash?
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Old Aug 10, 2007 | 10:11 AM
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Bump for help!
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Old Aug 10, 2007 | 10:15 AM
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Update with pic
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Old Aug 10, 2007 | 12:38 PM
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bump
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Old Aug 10, 2007 | 12:49 PM
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in ecuflash you need to change your "Boost Limit" found under the turbo section
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Old Aug 10, 2007 | 12:56 PM
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Is that the one the has it in ms? i think my setting right now is 1000ms, what should i change it to?
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Old Aug 10, 2007 | 09:28 PM
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I found it...And changed it. I had the same problem. Turns out the MBC cap broke free from the actual rod, so even though i was turning the cap full off, it wasnt actually adjusting my boost! I cleaned it, and used some loc-tite, and everything is fine now. Damn MBC!

I put the pre-load back on flapper and now it spools so much better and best part is, no boost cut. It hits solid 26psi, then slowly tapers to 24psi by redline.
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