Anyone know a good way to distinguish a turbo engine and a n/a engine just by looking at it bare block? I ask because I just recieved my rebuilt, and all the paperwork says it is a turbo engine, but there at subtle differences from my old one and it makes me wonder if they sent me the wrong one.

 

What kind of subtle differences?

 

Well, the biggest one is the oil filler tube thingy sticks up way further than on my old engine, and doesn't have the gasket / bolt holes so that I can attach the elbow to it. So when I tried to put that intercooler mounting bracket on it to hoist the engine with, it wouldn't fit cause the oil thingy was in the way.

Now when I look at pics of N/A and TII engine bays, I notice that on N/A's it sticks straight up cause the I/C isn't there to block it, whereas the TII's it is shorter like on my old engine.

Heres a pic of it in the crate. Notice the oil filler:

 

Your old engine was an s4 I am assuming right? Maybe thats an s5? I dunno my oil filler neck is different also, but I have an s4.

 

Nope, old engine was an S5 as well. Heres a pic of the old one:

 

Aren't Turbo housings all 4 port?
Recent NA'a are 6 port.

Easy to see on a bare block

There are also differences in the exhaust ports.

http://www.mazdatrix.com/faq/6pexh.htm

 

bump

Can someone post a picture of what a six port engine would look like, cause I don't have one... Thanks

 

The oil filler neck (Turbo and NA) simply presses into the hole in the center plate. It could simply be an NA filler neck in a Turbo center plate. Or they could have completely stuffed up and rebuilt the engine with an NA center plate.
BTW, a 6-port NA engine has six intake ports, the 4-port Turbo has (gasp!) four.

 

http://www.mazdatrix.com/faq/port6p.htm

 

They put an N/A filler neck in your TII engine, if the ports are only 4 ports.

The filler necks pull in and out, with some twisting. Just get another filler neck from a wrecker.

 

Well here are some pics (best I could get from in the box). Looks N/A to me, can you guys confirm it?

 

N/A
The top hole is where the 6 port sleeve goes

 

Damn, that sux if they sent you the wrong one .. make sure they pay shipping.

 

So it look wrong to you too?

I'll make sure they pay for it. Hell, ill try and get a free port job out of it...

 

Haha thats what I was thinking .. a free port job Lemme go in the garage real quick and look at my TII block .. compare them to your photo's BRB

 

Yup, Its the wrong one Thats a N/A for sure.. my block is a S4 but that should not account for any intake port changes.

 

That's definately a 6port block.

 

maybe they were trying to send u a subliminal message about whos the supperior rotary machine *cough* 13b n/a *cough* j/k