Hi, I am jsut wondering,im new to rx-7s, and we are rebuilding the engine right now it a Turbo II front housing will work on a naturally aspiranted motor?I searched but i couldn't come up with anything. Thanks

Yes.

Long story short; the above responce is incorrect. No; you can not directly replace the 6port front iron with a 4 port front iron, and expect the car to run... long.

We need some clarification.



Do you mean the rotor housing or the side housings?

Sorry, I mean the front side housing, the one the front cover attachs too.

If you chang the front you have to change the back one to match it up. Then you will need the Turbo II lower intake manifold. Should be fine after that. "I think"



Feel free to slap me if I am wrong.(brace myself)

The best thing to do on an s4 N/A i heard was to get a T2 Intermediate Housing, thats like an instant port job, but you gotta modify the heat riser. And get T2 rotor housings, that creates better flow to the headers, use t2 o-rings in the water jacket ports. If you also get s5 rotors, they are .5lbs lighter and will add .5compression, but u'll also need the front counter weight and flywheel.



this is all straight from Bruce Turentine.

No, you can't use TII end housings on a N/A

Thanks for the bit of info.

NA to NA?

http://www.mazdatrix.com/faq/rotorwgt.htm





-Ted