My goal is looking at about 400 to 500 range

 

Alright well then a streetport is worth getting, you'll also want to look into getting a late s5 thick casting turbo rear iron, s4 and early s5 are known to break at the 400+whp mark, also upgrading the engine studs is another thing to get done.

400whp can be done on stock ports, I've seen the dyno sheets on here to prove it but that's going to be hard to get.

rotary>pistons

 

So if my irons are good I can just change the the plates rotors ans studs won't with all the seals and be ok

 

You'll have to take the motor apart to inspect everything to see if its in good enough shape to use for the rebuild, typically you'll want to use all turbo parts, but im sure it could be done with na parts I just wouldn't recommend it.

Non turbo are 6 port intake design, turbo are 4 port, so you'll just be making more work for yourself, plus turbos have lower compression rotors (easier to safely run high boost).

You stated you're going to get a turbo engine, if that's the case it will have everything you'll need, with the exception of the thick cast rear iron (s4 don't have them, and only the late s5 engines have them-they started putting them in right before they came out with the 13b-rew:fd3s engine).

rotary>pistons

 

Well now I know what to lol for so ill start searching and pull apart that other motor and probably part it out if I can

 

Yea everything is made different for na including the rotor housings, they have bigger exhaust ports and coolant passages.

Turbo stuff is basically built tougher and to flow more.

rotary>pistons

 

i apreciate it. i got the tanny out and every thing disconnected took me about 6 hours i guess not to bad for my first time doing any of it ill get my hoist tomm and unbolt it and it should be out and on the stand.