I feel like I should know the answer to this, but are T2 and NA housings/irons interchangeable at all on S5 cars?

 

I suppose I should specify, I've got a T2 engine currently, and came across an engine from an NA. Would I be able to use the NA engine for parts in the event the T2 needs a rebuild? Rotors are different, I know this, but I'm more concerned about housings/irons.

Edit - Did some more reading, looks like the only issue is a coolant passage that the NA engine lacks? How do I work with that?

I found a local guy selling an NA engine. I'm just looking to scavenge parts (if it's worth it). Suggestions?

 

you'd need to swap the exhaust port sleeves in the rotor housings and drill out the coolant passage in the rear iron to feed coolant to the turbo, aside from that the rotor housings are the same.

the front and rear irons are 6 port and will not work with a 4 port turbo engine. the middle iron can be swapped if you pay attention to the port below the intake ports, it may vary a little with the non turbo iron and have to be blocked off.

 

I was hoping you would chime in.

In your experience, is $400 worth it? The engine has "20k" on its rebuild, 120k total. And the car was in a fire. Only the shortblock survived essentially. Seems to me like offering around 150 for an engine that he can't prove runs is more reasonable. He claims that he spun the flywheel (somehow) and got six chugs.... pretty crappy compression test honestly.. You sort of have to assume an engine that cant be proven running, can't run... correct?

 

i wouldn't trust it if it was in an engine fire, $150 sounds more than reasonable for an unknown condition motor with the limited amount of parts you would use from it. at 120k miles the housings might be on their last legs as far as rebuilding goes.

 

considering the housings alone would be more than 150 of you get it that much..

Did you take your motor apart? do you know what you really need?

 

I'm not in the process of a build yet. Just scavenging for parts. S5 Turbo housings and irons are coming few and far between.

 

the rotor housings really can be interchanged with any 13B excluding renesis. the S5/6 just appear to have superior chroming.

 

Someone (I believe it was one of the moderators) once told me that s4 housings have slightly different spark plug placement on the housings... different than the s5/s6 housings

Can someone else clarify?

 

found it.

http://rotaryresurrection.com/2ndgen...g_differs.html

 

they are different but you can use any housing set in matched pairs.

 

I see. Do you know if this applies to irons as well?

For instance...
Are all NA irons the same/interchangeable (s4 and s5)?
Are all Turbo irons the same/interchangeable ( s4 and s5, and maybe s6)?

 

when i rebuilt my engine like 3 years back i used 1 from a turbo 2...
simply used a small freeze plug to block that coolant port..

 

with an S5 the center iron is the main difference. it doesn't have an EGR port on top of the middle iron and there is an exhaust passage just below the intake ports which would need to be blocked off if using the S4 n/a intake manifold. so if you were to use S5 irons on an S4 you won't have any way of having a functional EGR which is required by some emissions testing states. conversely you could use an S4 iron on an S5 but you will need to block off the EGR ports.

 

I offered the 150$ for the engine, and explained why. No response. Guess that was a no. Thanks for the help gents.

 

np, i'm sure he is assuming the engine is good. except almost every car with a decent size engine fire i have seen the owners almost always had issues getting the engines to start up afterwards. could be for other reasons as i haven't dealt with pulling an engine apart after having been through that experience yet.

 

Thats right I completely forgot about the EGRs on s4's. Thanks for the clarification, Karack