diff --git a/firmware/controllers/math/engine_math.cpp b/firmware/controllers/math/engine_math.cpp
index dc1c5b9a70..a8ceef02d1 100644
--- a/firmware/controllers/math/engine_math.cpp
+++ b/firmware/controllers/math/engine_math.cpp
@@ -37,20 +37,7 @@
 //		return interpolate(5000, 1.1, 8000, 1, rpm);
 //	return interpolate(500, 0.5, 5000, 1.1, rpm);
 //}
-/**
- * @return time needed to rotate crankshaft by one degree, in milliseconds.
- * @deprecated
- */
-float getOneDegreeTimeMs(int rpm) {
-	return 1000.0f * 60 / 360 / rpm;
-}
 
-/**
- * @return time needed to rotate crankshaft by one degree, in microseconds.
- */
-float getOneDegreeTimeUs(int rpm) {
-	return 1000000.0f * 60 / 360 / rpm;
-}
 
 /**
  * @return number of milliseconds in one crankshaft revolution
diff --git a/firmware/controllers/math/engine_math.h b/firmware/controllers/math/engine_math.h
index 4f3a19dbd7..bb47bb2c13 100644
--- a/firmware/controllers/math/engine_math.h
+++ b/firmware/controllers/math/engine_math.h
@@ -32,8 +32,22 @@ extern "C"
 
 float getDefaultFuel(int rpm, float map);
 
-float getOneDegreeTimeMs(int rpm);
-float getOneDegreeTimeUs(int rpm);
+/**
+ * So that's how 'inline' syntax for both GCC and IAR
+ * It is interesting to mention that GCC compiler chooses not to inline this function.
+ *
+ * @return time needed to rotate crankshaft by one degree, in milliseconds.
+ * @deprecated use at least Us, maybe event Nt
+ */
+inline float getOneDegreeTimeMs(int rpm) {
+	return 1000.0f * 60 / 360 / rpm;
+}
+
+/**
+ * @return time needed to rotate crankshaft by one degree, in microseconds.
+ */
+#define getOneDegreeTimeUs(rpm) (1000000.0f * 60 / 360 / (rpm))
+
 float getCrankshaftRevolutionTimeMs(int rpm);
 
 int isCrankingRT(engine_configuration_s *engineConfiguration, int rpm);
diff --git a/firmware/controllers/trigger/rpm_calculator.cpp b/firmware/controllers/trigger/rpm_calculator.cpp
index a5ec834c4b..6ddb5c6325 100644
--- a/firmware/controllers/trigger/rpm_calculator.cpp
+++ b/firmware/controllers/trigger/rpm_calculator.cpp
@@ -173,11 +173,9 @@ int getRevolutionCounter(void) {
  * @return Current crankshaft angle, 0 to 720 for four-stroke
  */
 float getCrankshaftAngle(uint64_t timeUs) {
-	uint64_t timeSinceZeroAngle = timeUs - rpmState.lastRpmEventTimeUs;
+	uint64_t timeSinceZeroAngleUs = timeUs - rpmState.lastRpmEventTimeUs;
 
-	float cRevolutionTimeMs = getCrankshaftRevolutionTimeMs(rpmState.rpm());
-
-	return 360.0 * timeSinceZeroAngle / cRevolutionTimeMs / 1000;
+	return timeSinceZeroAngleUs / getOneDegreeTimeUs(rpmState.rpm());
 }
 
 void initRpmCalculator(void) {
diff --git a/firmware/rusefi.cpp b/firmware/rusefi.cpp
index fa5a610246..5b730c0d1b 100644
--- a/firmware/rusefi.cpp
+++ b/firmware/rusefi.cpp
@@ -235,5 +235,5 @@ void firmwareError(const char *fmt, ...) {
 }
 
 int getRusEfiVersion(void) {
-	return 20140911;
+	return 20140912;
 }
diff --git a/firmware/svnversion.h b/firmware/svnversion.h
index 903015d194..3e5ff8792a 100644
--- a/firmware/svnversion.h
+++ b/firmware/svnversion.h
@@ -1,5 +1,5 @@
 // This file was generated by Version2Header
-// Thu Sep 11 18:42:44 EDT 2014
+// Fri Sep 12 10:36:39 EDT 2014
 #ifndef VCS_VERSION
-#define VCS_VERSION "4633"
+#define VCS_VERSION "4660"
 #endif