C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

How Many BLM Cells ON 96 LT1?

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Old Aug 26, 2001 | 11:13 AM
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olephart's Avatar
olephart
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Burning Brakes
 
Joined: Dec 2000
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From: Lafayette LA
Default How Many BLM Cells ON 96 LT1?

Scanner sez I'm in block 15 at WOT. I thought it was supposed to be in block 20.

Anybody know how many BLM cells there are and which ones are for idle, wot and coast down?
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Old Aug 26, 2001 | 01:37 PM
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Jimmy69
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From: Chicago IL
Default Re: How Many BLM Cells ON 96 LT1? (olephart)

In closed loop the BLM cells go up to 15. A given cell is chosen based on MAP and RPM. Then come cells 16,17,18. 16 is used at Idle, 17 occurs during decelleration, and 18 covers accelleration. Why the PCM uses 16,17,18 is still not fully understood.

Here is a Matrix of the Cells (taken from the LT1-Edit Mailing list)

Infinite Kpa
| 12 | 13 | 14 | 15 |
80 Kpa-------------------------
| 8 | 9 | 10 | 11 |
50 Kpa-------------------------
| 4 | 5 | 6 | 7 |
32 Kpa-------------------------
| 0 | 1 | 2 | 3 |
0 Kpa
RPM|0 | 700 | 1200 |2000|infinite RPM

Jimmy


[Modified by Jimmy69, 11:41 AM 8/26/2001]


[Modified by Jimmy69, 11:48 AM 8/26/2001]
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