Stupid question...
I know that automatic transmission 8's came with a 4 port engine, and the manuals a six port...but...I really don't understand even after searching what the difference between the two is.
So...besides the transmission difference, how do the motors differ? |
The '06 and current auto RX8s have a 6-port engine too... its only the '04 and '05 auto models that have 4-port engines.
The 6-port has more HP, torque, and a higher redline. The 4-port has two intake ports (per rotor) while the 6-port has three (Auxiliary port is the 3rd). The 4-port doesn't have a VFAD to allow more airflow into the front duct. The 6-port has six fuel injectors (3 per rotor) while the 4-port only has four (2 per rotor). Might be others... that's all I can think of at the moment... |
the ECUs are different
the 09+ engines are waaay different the 4 port has 1 oil cooler the 6 port has 2 different drive shafts |
4 Attachment(s)
4 port has 2 intake ports per rotor
6 port has 3 intake ports per rotor but the upper port opens only when needed more like a variable intake valve timing stuff to piston engine 4 port intake layout https://www.rx8club.com/attachment.p...1&d=1281418842 4 port side housing https://www.rx8club.com/attachment.p...1&d=1281418842 6 port intake layout https://www.rx8club.com/attachment.p...1&d=1281418842 6 port side housing https://www.rx8club.com/attachment.p...1&d=1281418842 |
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