Help me understand the internal WG on EFR - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

bakerr6 · 01-10-2015, 04:42 PM

So my experience with turbo has always been aftermarket, but all external wg with a spring. On my err turbo, it's internally gated and I'm trying to check what spring rate I need to have it rated at, but I'm confused.

What I'm seeing on the mid boost wg is that it can crack open as low as 8.8psi, but under full load would receive the 20.6psi. From what I'm seeing here, I think this means it will hold at 8.8psi as the turbo spools and will crack open at this pressure, but hold until 8.8psi (just like a traditional external wg). The 20.6 is just a reference for not trying to run more boost than this. Is this correct?

I have my failsafe hooked up, and it's reading between 9-10psi of boost, which is a little high for where I want to be, but I wanted to see if it would even make sense to adjust the wg.

http://www.full-race.com/store/image...-content-3.jpg

Chart for reference

King Tut · 01-12-2015, 09:39 AM

If you want to run less than 9 psi, then you need to swap out to the low boost WG canister.

bakerr6 · 01-12-2015, 05:33 PM

Coil that's what I was under the impression of. Ty sir

01-10-2015, 04:42 PM	#1
bakerr6 Senior Member Join Date: Jun 2012 Drives: 2013 raven black fr-s Location: cincinnati, oh Posts: 1,447 Thanks: 503 Thanked 443 Times in 305 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Help me understand the internal WG on EFR So my experience with turbo has always been aftermarket, but all external wg with a spring. On my err turbo, it's internally gated and I'm trying to check what spring rate I need to have it rated at, but I'm confused. What I'm seeing on the mid boost wg is that it can crack open as low as 8.8psi, but under full load would receive the 20.6psi. From what I'm seeing here, I think this means it will hold at 8.8psi as the turbo spools and will crack open at this pressure, but hold until 8.8psi (just like a traditional external wg). The 20.6 is just a reference for not trying to run more boost than this. Is this correct? I have my failsafe hooked up, and it's reading between 9-10psi of boost, which is a little high for where I want to be, but I wanted to see if it would even make sense to adjust the wg. http://www.full-race.com/store/image...-content-3.jpg Chart for reference

01-12-2015, 09:39 AM	#2
King Tut NASA SpecE30 Racer Join Date: May 2012 Drives: 2006 Honda S2000 Location: Gulf Breeze, FL Posts: 7,279 Thanks: 607 Thanked 5,759 Times in 3,055 Posts Mentioned: 274 Post(s) Tagged: 10 Thread(s)	If you want to run less than 9 psi, then you need to swap out to the low boost WG canister. __________________ - King Tut Street/Track Car: 2006 Honda S2000 TT3 \|\| Race Car: 1987 BMW 325is SpecE30 \|\| Tow Vehicle: 2014 RAM 1500 EcoDiesel Sold Cars: 2012 BMW M3 \|\| 2013 Subaru BRZ \|\| 2012 Porsche Cayman R \|\| 2009 Chevrolet Z06 \|\| 2009 BMW M3 \|\| 2004 BMW M3 \|\| 2004 Nissan 350Z

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01-12-2015, 05:33 PM	#3
bakerr6 Senior Member Join Date: Jun 2012 Drives: 2013 raven black fr-s Location: cincinnati, oh Posts: 1,447 Thanks: 503 Thanked 443 Times in 305 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Coil that's what I was under the impression of. Ty sir

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