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Blow off valve

 
Old 02-10-2019, 11:38 AM
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2015 GLA45 AMG
Blow off valve

Been reading about installing a blow off valve because the stock design uses a blank plate and not releasing the pressure is bad on the turbo.

1.why would an oem hand build an engine that is designed for failure according to how others view the blank plate?
2. is a blow off valve going to increase the life of the turbo , stock or with minor mods,etc. piggy back tune..
3.if a blow off valve is suggested, what brands are the best bang for money?

hoping to hear some thoughts.looking to lightly mod my 2015 with piggy back tune..

Thanks yall
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Old 02-10-2019, 01:25 PM
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Typically either a recycle system (not actually blanked off) or blowoff type design scheme. Some people like the sound of a blowoff, some don't.

Originally Posted by Kulle View Post
Been reading about installing a blow off valve because the stock design uses a blank plate and not releasing the pressure is bad on the turbo.

1.why would an oem hand build an engine that is designed for failure according to how others view the blank plate?
2. is a blow off valve going to increase the life of the turbo , stock or with minor mods,etc. piggy back tune..
3.if a blow off valve is suggested, what brands are the best bang for money?

hoping to hear some thoughts.looking to lightly mod my 2015 with piggy back tune..

Thanks yall
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Old 02-10-2019, 01:54 PM
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yeah i get its either recirculated or blow off style. aside from the sound, i guess i am asking who can confirm the 2015 gla is blanked or recirculated. if truly blanked off, is the turbo getting compressor surge, hence people saying to get a bov
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Old 03-01-2019, 03:56 AM
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2017 GLA 250, 2011 C63 P31 (p30 w/ lsd) (in repair), 2005 C230 Sport Eurocharged, 2003 C320~sold
I did some research on this as well and there are different type of systems where a blowoff valve is needed and other systems like Mercedes where it is recirculated and not needed nor damages the turbo. For the MB the best thing to do is get a variable valve using the same tech currently on the car -- link here GFB DV+ but just look around for the best place to buy. Got mine brand new on ebay for only $110 shipped

EDIT: Kulle I see your profile has the AMG so would be pushing more boost and is a different setup than the "baby" GLA lol
Perhaps one of these from TurboSmart GLA45 AMG 2014-current would work for you but hope someone that did it can chime in on what they did and performance differences.

Last edited by krazzdav; 03-01-2019 at 11:07 PM.
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Old 03-16-2019, 08:20 AM
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2015 GLA45 AMG
Yeah thats the one i was looking at. Wanted to hear from someone with same AMG model and if they used the plumback(recirc) or the 50/50 vent, which i want to know causes a richer run,since the MAF will calc fuel based on amount of air, and if some vents to atmosphere, would be rich and cause issues. i had a wrx and ran without the recirc to hear the sound and it would stall.
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