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BMW 3-Series (E90 E92) Forum
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diverter valves leaks?
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09-17-2009, 10:57 AM | #1 |
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diverter valves leaks?
hey guys been trying to research it as much as i could because i heard that forge diverter valves leak alot but i cant find anybody complaining of them leaking is this true that they do leak would you guys advise me against doing it?
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09-17-2009, 11:34 AM | #4 |
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i had mine installed 10.000 km, no leakage at all.
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09-17-2009, 11:37 AM | #5 |
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mine did not leak on the OEM charge pipe.
OP, the charge pipe that Stett offers replaces the plastic charge pipe where the DV's are located.
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09-17-2009, 12:47 PM | #7 |
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Do the OEM DVs really cause a lot of leaking warranting the need to upgrade to Forge DVs?
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09-17-2009, 02:06 PM | #9 |
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Has anyone had issues with the originals leaking, or causing wierd boost surging.
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09-17-2009, 03:52 PM | #10 | |
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Quote:
if you run a tune with 14 -15+ psi get aftermarket DV or BOV.
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09-17-2009, 05:52 PM | #11 | |
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Quote:
The stock DVs on the N54 motor are nearly identical to the ones used in Audi applications on the B5 S4, Pre-2005.5 A4, RS6, etc, and have been known to tear which will ruin boost response, power, and driveability pretty badly. Also, since the springs generally arent meant to handle increased boost, they can not function as efficiently as an upgraded unit. The Forge dvs use a metal plunger design that can absolutely never tear since there is not a diaphragm. It comes with different springs to tune it for your boost level as well as fine tuning discs to add slightly more resistance if needed. The new Forge DV revision will not leak and it will definitely provide much better performance than the factory valve. I've personally used Forge DVs in my personal cars (Audi, Porsche, BMW) for years and have had a great experience with them. Nick http://www.e90post.com/forums/showthread.php?t=301146
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09-17-2009, 09:51 PM | #12 | |
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However, at part throttle, the stock diverters often bleed off boost too soon compared to the stiffer forge springs. So part throttle response is much better with the forge units.....especially on the lagfix maps. |
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09-18-2009, 07:05 PM | #13 | |
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09-18-2009, 07:32 PM | #14 |
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A Member here was running forge dv's, and they were working good, but the stock locking clips on the intake pipe was where the boost was leaking. He went and got the stett intake pipe with the same dv setup, and there was no leak at all.
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