LNF By Pass valve Needed

[Adam in CLE]

I'm looking for the LNF bypass valve cover diaphragm and spring. If anybody has one send me a price.

 

[Desert Sasqwatch]

This one?
BorgWarner KKK EFR K03 K04 turbo diverter ByPass Blow off Valve - KT4 Performance
Ok, maybe not that one but would be a great upgrade.

Check RockAuto, they may have a stock replacement for a reasonable price - and it's new.

 

[Gtstorey]

Is this what you are talking about?
2010 CHEVROLET COBALT 2.0L L4 Turbocharged Turbocharger Diverter / Bypass Valve | RockAuto

 

[Desert Sasqwatch]

This one?

 

[Adam in CLE]

This one?
BorgWarner KKK EFR K03 K04 turbo diverter ByPass Blow off Valve - KT4 Performance
Ok, maybe not that one but would be a great upgrade.

Check RockAuto, they may have a stock replacement for a reasonable price - and it's new.

I have that one but don't have the right spring and could find a place that sells them. if you find the, let me know.

 

[Adam in CLE]

This one?
View attachment 45717

Yes, that one.

 

[Desert Sasqwatch]

Found this on ebay, it's the only stock cover and spring kit I could find.
ACDelco Turbocharger Bypass Valve Kit 19168558 | eBay

 

[Gtstorey]

How do you know what spring you have?

 

[Gtstorey]

If you search for the part number from D.S. eBay link, on eBay, you can find them for substantially less than his link.
19168558 for sale | eBay

 

[Adam in CLE]

Found this on ebay, it's the only stock cover and spring kit I could find.
ACDelco Turbocharger Bypass Valve Kit 19168558 | eBay

Holy crap, $156 for a piece of plastic!

 

[Adam in CLE]

How do you know what spring you have?

My Mamba valve stays closed causing turbo flutter. Based on the color of the spring and the research I did in the past, I have the 45lb spring.

 

[Adam in CLE]

I was hoping someone had a used one.

 

[Gtstorey]

My Mamba valve stays closed causing turbo flutter. Based on the color of the spring and the research I did in the past, I have the 45lb spring.

10-4. I didn't know you had an aftermarket one. You could try reducing your waste gate duty cycle and torque to load table a lot and see what affect that has. I don't know if it will overcome a heavier spring though.

 

[Gtstorey]

I was hoping someone had a used one.

Probably only if someone has a totally shot turbo.

 

[Desert Sasqwatch]

This is Mamba spring chart.

 

[comegetjoe]

Forge Motorsports 2.0T Recirculating Bypass Valve-FMDVK04S-C

store.badnewsracing.net

Would this help? Im not sure what spring it comes with. I had it on a '09 with a zzp tune making 21-22psi.

 

[Adam in CLE]

Thx Joe, how much?

 

[Mahkoi]

I put a forged motorsports one in my lnf. I'm pretty sure I still have the stock one in a box somewhere.

 

[comegetjoe]

Sorry if I mislead. I like it and kept it for my build. BNR has it listed, but its not cheaper than what DS had posted.

 

[Adam in CLE]

Any way to find

I put a forged motorsports one in my lnf. I'm pretty sure I still have the stock one in a box somewhere.

That would be awesome if you have it. Let me know.