Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_1147705_1 ( engine_type VARCHAR, max_torque_at_rpm VARCHAR )

### Question ###
What is the engine type when the max torque at rpm is n m ( lbf ft ) @ 4,800 Answers:?

### Accurate SQL ###

SELECT engine_type FROM table_1147705_1 WHERE max_torque_at_rpm = "N·m ( lbf·ft ) @ 4,800"