diff --git a/firmware/controllers/algo/rusefi_enums.h b/firmware/controllers/algo/rusefi_enums.h
index fc5f3294ad..085932b48b 100644
--- a/firmware/controllers/algo/rusefi_enums.h
+++ b/firmware/controllers/algo/rusefi_enums.h
@@ -598,7 +598,7 @@ typedef enum __attribute__ ((__packed__)) {
 
 typedef enum {
 	VVS_OOPS = 2,
-	Force_4_bytes_size_mass_storage = ENUM_32_BITS,
+	Force_4_bytes_size_can_vss_nbc_e = ENUM_32_BITS,
 } can_vss_nbc_e;
 
 typedef enum {
diff --git a/firmware/controllers/core/state_sequence.h b/firmware/controllers/core/state_sequence.h
index 0f61a0239d..ee6969a7f2 100644
--- a/firmware/controllers/core/state_sequence.h
+++ b/firmware/controllers/core/state_sequence.h
@@ -17,6 +17,9 @@
  * Looks like 252 is explained by 60 tooth * 2 (number of fronts) * 2 (number of crank rotations within engine cycle)
  */
 #ifndef PWM_PHASE_MAX_COUNT
+// as of April 2020, trigger which requires most array length is REMIX_66_2_2_2
+// we can probably reduce RAM usage if we have more custom logic of triggers with large number of tooth while
+// pretty easy logic. like we do not need to REALLY have an array to remember the shape of evenly spaces 360 or 60/2 trigger :)
 #define PWM_PHASE_MAX_COUNT 280
 #endif /* PWM_PHASE_MAX_COUNT */
 #define PWM_PHASE_MAX_WAVE_PER_PWM 3
diff --git a/firmware/controllers/engine_controller.cpp b/firmware/controllers/engine_controller.cpp
index 5302508bd2..298d9e036c 100644
--- a/firmware/controllers/engine_controller.cpp
+++ b/firmware/controllers/engine_controller.cpp
@@ -695,10 +695,10 @@ void initEngineContoller(Logging *sharedLogger DECLARE_ENGINE_PARAMETER_SUFFIX)
 // help to notice when RAM usage goes up - if a code change adds to RAM usage these variables would fail
 // linking process which is the way to raise the alarm
 #ifndef RAM_UNUSED_SIZE
-#define RAM_UNUSED_SIZE 13500
+#define RAM_UNUSED_SIZE 12900
 #endif
 #ifndef CCM_UNUSED_SIZE
-#define CCM_UNUSED_SIZE 3600
+#define CCM_UNUSED_SIZE 3000
 #endif
 static char UNUSED_RAM_SIZE[RAM_UNUSED_SIZE];
 static char UNUSED_CCM_SIZE[CCM_UNUSED_SIZE] CCM_OPTIONAL;