04Green

iTrader: (1)

I tired a few searches, none kicked back fewer than 800 threads. Sorry, too lazy to dig through more than a few hundred.

I seem to have acquired a 4 port, 2004, engine. It ran, just not wonderfully well. I am curious as to what parts will be useful for a 6 port build. Are the rotors and e-shaft the same? How about the OMP? I know the irons are different, as well as the flywheel. How about the rotor housings?

My 6 port has almost 80 thousand miles on it. It is still running strong, but if I were to bank potential parts, I am wondering what to keep from this one.

Or, is there something else I should do with it?

nycgps

iTrader: (1)

seriously ?

ok, i be nice today, 4 port vs 6 port difference is pretty obvious. 4 port u get 4 intake holes, while 6 u get 6. the extra 2 port is used to control different air velocity when the engine needs it(for higher rpm)

technically a 4 port can go 9 k rpm too (assume u use the heat treated stationary gears from factory as well), but u lose power after 7~ k rpm on the 4 port cuz it's not flowing enough air.

throwing a 4 port into a 6 port mt car will work, u need pilot bearing and seal. rest of the stuff is the same, but u gonna lose power after 7K rpm. (see above)

so if ur 6 port engine breaks down for whatever reason, unless you can get the 4 port for almost nothing and u gonna sell the car soon(and the next buyer gonna bitch like wtf), throwing a 4 port to a used to have 6 port engine car means u are retarded (lol)

04Green

iTrader: (1)

Thanks,

That was what I hoped. Although I may have asked poorly... A better way to ask, is what could I use from the 4p to create the 6p. Sounds like I have a set of housings, OMP, lines, shaft, oil pump and other little parts. I know I would need 6p irons, and now know I need the better stationary gears.

I also have a couple of extra rotors for coasters or paper weights or if somehow I manage to destroy a rotor.

Or, to put it another way, I am a good set of irons, stationary gears maybe, pilot bearing and seal (I actually have those) away from parts for a 6p motor. And, someone smart enough to put it all together. And, if I ship it off to a smart person to get it built, the fact that I am not shipping the damn irons will make part of the process cheaper.

Thanks

j9fd3s

rotors, rotor housings, e shaft and oil pump are the same 4 port and 6 port. exhaust manifold is the same, omp i think is as well.

stat gears are different, bearings are different, irons are different. intakes are different, although all the sensors are the same (afm, ect).

04Green

iTrader: (1)

Thanks,

Sounds like lots of spares, and at rebuild time I just need a nice set of irons, maybe ported up nice, with gears, and everything will move over (provided the rest is not screwed up).

And, I got a fun, weekend, teardown project, after the honey do list, the "6" is fixed, the house is painted and the kids are out of college...

Carbon8

iTrader: (4)

Middle iron I believe is the same, you only need the front and rear irons.

j9fd3s

port timing is different.

Carbon8

iTrader: (4)

Never new how difficult Mazda made this become

j9fd3s

its easy, just use the correct part for your car.

04Green

iTrader: (1)

Thanks everyone.

I appreciate the info.

Ozxx

My 4 port 05 engine just died, its a 4 speed auto transmission... i found a 2006 rx8 with auto transmission that a guy is parting out, but its got a 6 port complete engine with 60k miles. ( its got manifold, injector, harness and all that crap that comes with the engine)
can i install the 2006, 6 port engine on my car?
if not what parts would i need for the 6 port engine in order to get it properly working on my car.?

im a girl and im not a car technitian so pls no trolls or mecanicall classes just answers pls... TY

nycgps

iTrader: (1)

you need to move pretty much EVERYTHING over. including front harness, dash harness, room harness, etc.

not worth it if all u want is getting ur car back on the road.

RIWWP

iTrader: (2)

You will need to change the transmission, full engine bay harness, and ECU, not to mention re-encoding other modules that are paired with your old ECU like the immobilizer, etc...

It will be far cheaper to install a 4-port, then sell the car at a loss and buy a 6-port. Seriously.