K0422-881 and K0422-882 differences?

[TrunkMonkey]

So I did a search and found that he CX-7 has a different turbo but the mazda speed 3 and speed 6 turbos seem to get lumped in together. So my question is since they have different part numbers what are there differences. I'm assuming mazda wouldn't have seperate numbers for the same turbo. The reason I ask is my speed 6 needs a new turbo soon and I have found a turbo from a 2013 speed 3 for sale locally.

Thanks.

[MattJackson86]

Speed3 and Speed6 have same turbo. The CX-7 K04 is different.

K04 Differences: K0422-582 vs. K0422-881 / K0422-882

[TrunkMonkey]

Originally Posted by MattJackson86 Speed3 and Speed6 have same turbo. The CX-7 K04 is different. K04 Differences: K0422-582 vs. K0422-881 / K0422-882

If they are the same turbo why do they have different numbers?

[TrunkMonkey]

Sooooo anybody??? Why are there different numbers for these turbos if they are the same?

[MattJackson86]

Google search those part numbers and see what shows up. Found this, not sure if its right, but it makes sense:

K0422-882 for EU
K0422-881 for Japan and USA

[TrunkMonkey]

So if I put a speed 3 turbo 882 on my speed 6 881 I will loose about 13hp or so?

[speed23]

Go ahead and use the turbo you found locally. K04s from speed3's have been used on speed6's many many times, including by myself. They're the same regardless of numbers. There will be no change in hp. Just dont use Cx-7 turbo.

[TrunkMonkey]

I sure hope it works. Mine sucks down about a quart a
Month. I got a turbo from a 2013 speed3

[mituc]

If it sucks a quart/month it may be the exhaust valve seals, not the turbo. I'm not sure if a leaky/smokey turbo can burn that much oil...
Ans since you're replacing your turbo why not go for something a bit larger (BNR, GTX)? Even on stock intake/exhaust and with upgraded fuel pump internals you will be better with a larger turbo.

[TrunkMonkey]

Hmmmm maybe. We shall see. I can't go bigger. My other turbo project takes all my money.

[torquemaniac]

The 582 (CX-7) as smaller exhaust A/R and compressor wheel than both the 881 and 882

I once took apart a 582 (CX-7) and 881 (MS6) side by side, and two difference I saw is the journal bearing design and the oil inlet banjo (the CX-7 banjo as a smaller oil passage)

Maybe Mazda made some change to the turbo at some point to prevent the smoking issue (by restricting the oil intake and altering the journal bearing design for the lessen oil pressure)

881 may be the old version, and 882 the new version?

Anyhow, before I put the MS6 turbo in my CX-7, I rebuilt it with the original journal bearing (the two version are included in the rebuilt kit), and put the turbo on the car with a MS6 banjo bolt (bigger oil inlet hole)... a while after, I begin to have smoking issue

The minute I put the CX-7 banjo bolt back, the smoking issue was gone (the CX-7 banjo as a small opening like the Bnoon bolt)

Maybe you just need a rebuilt (with the new journal bearing design) and Bnoon bolt?