03-10-2018, 06:31 PM | #1 |
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Diverter Valve
I searched and couldn't find anything M2/N55 specific, so please point a related post out to me if I missed it otherwise, please consider these thoughts/questions:
I have my CSF intercooler and some charge pipes on my workbench (among some other goodies) and am wondering if it's worth replacing the diverter valve while I am in there with the GFB T9357 (http://www.gfb.com.au/products/blow-...cations-detail). Is this something that the N55 in the M2 needs upgrading? What are other's thoughts on this and/or experience with replacing it on the M2/N55? Thanks! |
03-10-2018, 06:39 PM | #2 |
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I haven't seen any threads as well, I suspect they are not used on the M2, no clue honestly just a guess, which maybe the reason there is no discussion. I'm sure if they were an item to upgrade forum members would be all over it.
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03-10-2018, 06:45 PM | #3 |
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There’s an M2 one, listed in one of the threads or just ask PURE Turbos for the specific model. Also, it’s not an easy install at all...you’d want to drop the turbo for it. Not sure if it’s possible to do without removing the turbo? That’s why I haven’t done it yet...not even worth the $ for the labor or the stress myself.
So no, not worth it. Unless you’re upgrading the turbo. |
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03-12-2018, 06:58 AM | #4 |
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I have this on my M2. Yes, the T9357 is the correct type. I installed it myself but it was really a PITA job. You don't have to remove the turbo but must remove the turbo inlet and charge pipes to get access to the 3 screws. The most difficult to remove is the bottom one, can be accessed from under the car.
Last weekend I enjoyed it on my first track day. It has a nice sound and keeps the boost better. |
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03-12-2018, 05:29 PM | #5 |
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03-12-2018, 07:46 PM | #7 | |
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03-12-2018, 08:56 PM | #8 |
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Unlike lesser N55s using a very weak DV, M2 N55 has N20 version from factory, which is designed to handle boost up to 20psi. M2 runs a bit less boost than N20, either stock or tuned.
Given the fact that N20 guys breaking it is rarely heard of, I would suggest M2 only needs it when doing 22+psi on PS2. Additionally, DV+ offers boost holding capability on lift off with its main spring, which is very useful to MT and 8AT because they lose boost a lot during shift. DCT however is in less need for it. This mainspring can cause noise BTW. Actually I did it (without mainspring). Do it again probably I wouldn't bother at all.
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03-13-2018, 11:26 PM | #10 |
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I think you should go return your m2 go buy yourself an STI....
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03-14-2018, 09:51 AM | #11 | |
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If you go with a bigger turbo than Pure Stg2 then you're going to be looking at a lot of piece-meal work anyways. As far as I know, there's no "kit" right now. |
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