diff --git a/api/scripts.py b/api/scripts.py
index 48a03f7..4f837b9 100644
--- a/api/scripts.py
+++ b/api/scripts.py
@@ -109,26 +109,28 @@ def build_script_for_level(level: int) -> dict:
         return build_script_l0()
 
 
-def build_dynamic_script() -> dict:
-    """Скрипт для динамического теста — 12 PID, опрос каждые 250мс."""
+def build_dynamic_script(interval_ms: int = 1200) -> dict:
+    """Скрипт для динамического теста — 6 стабильных PID.
+
+    Частые (каждый цикл): RPM, нагрузка, дроссель, ОЖ
+    Средние (каждые 3 цикла): STFT, LTFT — реализуется на клиенте
+    Редкие: IAT, MAP, напряжение — раз в 5+ циклов
+
+    interval_ms: период цикла (default 1200мс для клона v1.5).
+                 6 PID × ~200мс/PID ≈ 1.2с.
+    """
     return {
         "version": 1,
         "title": "Динамический тест",
         "mode": "dynamic",
-        "interval_ms": 250,
+        "interval_ms": interval_ms,
         "steps": [
-            {"id": "pid_04", "cmd": "0104", "desc": "Нагрузка"},
-            {"id": "pid_05", "cmd": "0105", "desc": "ОЖ"},
-            {"id": "pid_06", "cmd": "0106", "desc": "STFT"},
-            {"id": "pid_07", "cmd": "0107", "desc": "LTFT"},
-            {"id": "pid_0B", "cmd": "010B", "desc": "MAP"},
-            {"id": "pid_0C", "cmd": "010C", "desc": "RPM"},
-            {"id": "pid_0D", "cmd": "010D", "desc": "Скорость"},
-            {"id": "pid_0E", "cmd": "010E", "desc": "Зажигание"},
-            {"id": "pid_0F", "cmd": "010F", "desc": "IAT"},
-            {"id": "pid_10", "cmd": "0110", "desc": "MAF"},
-            {"id": "pid_11", "cmd": "0111", "desc": "Дроссель"},
-            {"id": "pid_1F", "cmd": "011F", "desc": "Время работы"},
+            {"id": "pid_04", "cmd": "0104", "desc": "Нагрузка",      "freq": "high"},
+            {"id": "pid_05", "cmd": "0105", "desc": "ОЖ",            "freq": "high"},
+            {"id": "pid_0C", "cmd": "010C", "desc": "RPM",           "freq": "high"},
+            {"id": "pid_11", "cmd": "0111", "desc": "Дроссель",      "freq": "high"},
+            {"id": "pid_06", "cmd": "0106", "desc": "STFT",         "freq": "mid"},
+            {"id": "pid_0D", "cmd": "010D", "desc": "Скорость",      "freq": "low"},
         ],
     }