I plan on converting to an RX-8 Renesis complete with the FI from my 13b. I'll worry about motor mounts and such after I get the proper motor.



Right now my concern is in buying from a salvage yard, are there exterior clues to look for so that I know that I am getting a six-port instead of a four-port?



Beyond the exterior, if they are the same, how can I spot the difference?



Thanks.

huh? the renesis motors are all the same

[quote name='Shane.Trammell' date='Aug 9 2005, 01:00 PM']huh? the renesis motors are all the same


[/quote]

No, there is a 4-port, and a 6-port. I believe the 4-port comes with the auto tranny, right?

If the engine is out you can spot the 6 port actuators......also if it has a flexplate attached to it is a 4 port....6 ports were all the 6-speeds, and the 4 ports are automatics....

[quote name='Black8' date='Aug 9 2005, 01:33 PM']If the engine is out you can spot the 6 port actuators......also if it has a flexplate attached to it is a 4 port....6 ports were all the 6-speeds, and the 4 ports are automatics....


[/quote]



4-ports are only auto's in the US. There are 4 port 5sps in Europe and Japan...

Interesting, so what other differences are there between the engines?



Mark

[quote name='my10ae' date='Aug 9 2005, 01:48 PM']4-ports are only auto's in the US. There are 4 port 5sps in Europe and Japan...


[/quote]





yeah, I know that....wish we got them over here too....

[quote name='inanimate_object' date='Aug 9 2005, 02:58 PM']Interesting, so what other differences are there between the engines?



Mark


[/quote]



HP rating and the intakes if I'm not mistaken.



www.yawpower.com installed a 4 port renesis in a rock crawler. Its under the projects section.

[quote name='Black8' date='Aug 9 2005, 02:33 PM']If the engine is out you can spot the 6 port actuators......also if it has a flexplate attached to it is a 4 port....6 ports were all the 6-speeds, and the 4 ports are automatics....


[/quote]



Thanks for the good info, Noel. Now, would you please be kind enough to tell me what is meant by an actuator and a flexplate?

just look at the lower intake manifold, the four port has 4 runners and 4 injectors, the 6-port has six runners and six injectors

[quote name='neit_jnf' date='Aug 11 2005, 10:17 PM']just look at the lower intake manifold, the four port has 4 runners and 4 injectors, the 6-port has six runners and six injectors


[/quote]





THANKS GUYS !!!

[quote name='inanimate_object' date='Aug 9 2005, 02:58 PM']Interesting, so what other differences are there between the engines?



Mark


[/quote]



main differences between the engines are the number of ports and injectors (4 vs 6), the port opening and closing timings for both intake and exhaust, the variable lenght intake manifolds are tuned for different rpms, the redlines are different and the power and torque outputs. Could be more, I dunno