Author Topic: diamondedge's 2007 WRX - "STi TMIC, Redux"  (Read 47849 times)

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Offline firebane

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Re: diamondedge's 2007 WRX - "STi TMIC, Redux"
« Reply #725 on: December 18, 2022, 11:53:54 am »


It's mostly a firmware thing. And debateably, based on the brief review, the system is behaving better now than it was before. If Cobb didn't put tuning behind their EFI University paywall, it might be worth a deeper look.

But nah, def just gonna sent it.

Yah I get the whole ease of use and such with accessports but its also one reason why I invested into a tactrix so I can do somethings on my own.

Offline diamondedge

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Re: diamondedge's 2007 WRX - "STi TMIC, Redux"
« Reply #726 on: December 19, 2022, 03:29:57 pm »
Yah I get the whole ease of use and such with accessports but its also one reason why I invested into a tactrix so I can do somethings on my own.

COBB nuked their old Confluence page but as someone who uses Atlassian/Confluence in their past, they previous version shows the Stg2 map notes prior to the CARB kibosh.

Interesting.

Boost Targets
ACN91: ~15.0psi peak boost pressure tapering down to ~10.0psi by the 6700RPM redline, +/- 1.0 psi
91 Octane 95 RON Minimum: ~15.5psi peak boost pressure tapering down to ~10.0psi by the 6700RPM redline, +/- 1.0 psi
93 Octane 98 RON Minimum:~16.0psi peak boost pressure tapering down to ~10.0psi by the 6700RPM redline, +/- 1.0 psi

I should datalog and see. It's OK if I leave a few PSI on the table, saves my clutch LEL

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Offline RockThePylon

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Re: diamondedge's 2007 WRX - "STi TMIC, Redux"
« Reply #727 on: December 19, 2022, 09:09:46 pm »
There's a correction factor due to altitude. Otherwise you overwork the ole turbski.

You can assume 15psi (at sea level)

We sittin' around 12.9psi in YYCs as of tonight. PSI@SL = 14.7psi

15psi - 1.8psi diff = ~13psi target (assumed)

I dunno what Cobb is targeting in your map specifically. My old STI Cobb maps are around -8% correction for YYC altitude, and another -7% compensation at 0*C.
I may scream like a dainty lady, but I punch like a fairly strong 11-year-old.

Offline diamondedge

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Re: diamondedge's 2007 WRX - "STi TMIC, Redux"
« Reply #728 on: December 21, 2022, 01:08:06 pm »
There's a correction factor due to altitude. Otherwise you overwork the ole turbski.

You can assume 15psi (at sea level)

We sittin' around 12.9psi in YYCs as of tonight. PSI@SL = 14.7psi

15psi - 1.8psi diff = ~13psi target (assumed)

I dunno what Cobb is targeting in your map specifically. My old STI Cobb maps are around -8% correction for YYC altitude, and another -7% compensation at 0*C.

Oooh RTP. Smort. Makes sense, elevation.

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