27.5 psi on 91 octane maps
Thread Starter
Joined: Aug 2003
Posts: 14,092
Likes: 1,090
From: Mid-Hudson, NY
27.5 psi on 91 octane maps
Awhile back I posted my maps that I used for a 100octane tune on a stock turbo.
You can see that here: https://www.evolutionm.net/forums/sh...d.php?t=254369
Figure I would continue with this and post my maps that I am currently using to run 27.5 psi on 91 octane.
Here they are:
For more info on this tune, with dyno sheets and visual logs see: https://www.evolutionm.net/forums/sh...d.php?t=340451
You can see that here: https://www.evolutionm.net/forums/sh...d.php?t=254369
Figure I would continue with this and post my maps that I am currently using to run 27.5 psi on 91 octane.
Here they are:
For more info on this tune, with dyno sheets and visual logs see: https://www.evolutionm.net/forums/sh...d.php?t=340451
Thread Starter
Joined: Aug 2003
Posts: 14,092
Likes: 1,090
From: Mid-Hudson, NY
Looks good! Timing seems mild. (granted Im in training) were u really hitting 21psi @ 2K? thats awesome! How long did u work on that map/tune? You were adding quite a bit of "upward" correction. I guess thats how its supposed to look when its dialed in... 
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Thread Starter
Joined: Aug 2003
Posts: 14,092
Likes: 1,090
From: Mid-Hudson, NY
Remember this is 27.5psi on 91 octane
Where are you seeing this?
I've found you need to bring back in upward correction when you set the Max Upward Correction Vs TPS down to 0. This table has created a huge jump in dialing in ECU boost to be even more solid. With it set at zero, the WGDC will never go over BWGDC. No more crazy overboosts with error correction!
Where are you seeing this?
Its really a service to have people as intelligent as yourself post things up like this. Its a shame the norm is cloak and dagger about maps.
I'd post mine but they would be gibberish. Maft Pro handles the bulk of the fueling situation so I basically have a bland A/F ratio in all the higher load cells. A/F tracking just does what I punch in on the unit.
My timing is almost identical... but on 93oct.
But I hold 25psi flat from spool to gear change.
I might be able to get away with another degree or two. But... then it will intermittantly knock. (And typically keep knocking) So I keep it about where you have it so I can get into it any time I want with only a single count here or there.
I'd post mine but they would be gibberish. Maft Pro handles the bulk of the fueling situation so I basically have a bland A/F ratio in all the higher load cells. A/F tracking just does what I punch in on the unit.
My timing is almost identical... but on 93oct.
But I hold 25psi flat from spool to gear change.
I might be able to get away with another degree or two. But... then it will intermittantly knock. (And typically keep knocking) So I keep it about where you have it so I can get into it any time I want with only a single count here or there.
Remember this is 27.5psi on 91 octane
Thats some serious boost on pisstane.
Where are you seeing this?
I was lookin @ ur baseline boost table, but just came to the realization that it is probobly just that baseline... I am very new to the gm 3-port/ and the new baseline tables... Im awaiting my gm 3-port, and intend on making the transition over to PSI based control. Thank you for your contribution to the comunity! Its good stuff!
I've found you need to bring back in upward correction when you set the Max Upward Correction Vs TPS down to 0. This table has created a huge jump in dialing in ECU boost to be even more solid. With it set at zero, the WGDC will never go over BWGDC. No more crazy overboosts with error correction!
Thats some serious boost on pisstane.
Where are you seeing this?
I was lookin @ ur baseline boost table, but just came to the realization that it is probobly just that baseline... I am very new to the gm 3-port/ and the new baseline tables... Im awaiting my gm 3-port, and intend on making the transition over to PSI based control. Thank you for your contribution to the comunity! Its good stuff!
I've found you need to bring back in upward correction when you set the Max Upward Correction Vs TPS down to 0. This table has created a huge jump in dialing in ECU boost to be even more solid. With it set at zero, the WGDC will never go over BWGDC. No more crazy overboosts with error correction!
Thread Starter
Joined: Aug 2003
Posts: 14,092
Likes: 1,090
From: Mid-Hudson, NY
