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Old 01-26-2009, 12:17 PM   #1
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Default EBC tunning/overboost

Hi MS maniacs! (more in Meet and Great)

I'm trying to get my MS tuned - it's not so dificult as I thought - thanks to You guys and miataturbo forum! I've spent here lots of hours reading You...

but as always there are some questions with no answers....

I was tunning my EBC (MS kit from DIYtune). Can somebody tell me what happened with:
1. my PW going to 0 ?
2. my overboost protection (set at 199kpa)? it's not working as it should work, but why?

my datalog and msq in attachement
Attached Files
File Type: xls datalog200901251352.xls (100.7 KB, 48 views)
File Type: msq megasquirt200901251355.msq (35.1 KB, 82 views)
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Old 01-26-2009, 12:29 PM   #2
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your overboost is set at 199kPa, your hitting over 14psi is some places....thus the overboost is cutting fuel. overboost needs to be set a few pounds over your peak boost, else it will cut your fuel; you don't have to hit the overboost target for it to enact, if it thinks you're goign to hit it, it will cut. In your case, the ECU thought you were goign to hit 14psi, you came very close, so it cut fuel...in a few places you hit 199kPa.

So I'd say it's working exactly like it should.
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Old 01-26-2009, 03:28 PM   #3
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thanks, I thought MS will cut fuel if I exceed the set overboost pressure. It's smarter than I thought
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