Suzuka is located about 50 kilometers south of Nagoya. Most ways to Suzuka lead via Nagoya:
1) How to get to Nagoya
2) How to get from Nagoya to the Suzuka Circuit
By JR and Ise Tetsudo:
The closest railway station to the race circuit is Suzuka Circuit Ino Station, a 10-15 minute walk from the circuit.
The one way journey from Nagoya Station to Suzuka Circuit Ino Station takes about one hour, costs 1040 yen and requires one transfer of trains at Suzuka Station (if you ride a Toba bound rapid train from Nagoya) or Yokkaichi Station (if you ride a Kameyama or Yokkaichi bound local train from Nagoya).
On race sunday, special direct limited express trains named "Suzuka F1" operate between Nagoya Station and Suzuka Circuit Ino Station, taking 40 minutes and costing about 2500 yen one way. Seat reservations are mandatory on these trains.
Note that the Japan Rail Pass covers only part of the journey, since the section between Kawarada and Suzuka Circuit Ino Station is owned by a non-JR railway company. The supplement fee to be paid by pass holders is 300 yen (610 yen in case of a limited express train).
By Kintetsu Railways:
An alternative approach to the circuit is provided by Kintetsu Railways. The closest station, Shiroko Station, is a 15 minute bus ride from the circuit.
The one way journey from Nagoya Station to Shiroko Station takes 40 minutes and costs 1670 yen by limited express train (tokkyu) or 50 minutes and 800 yen by express train (kyuko). The Japan Rail Pass is not valid on Kintetsu trains.