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Turbo options 280-320wkw


Andy_Mac

Turbo options 280-320wkw  

11 members have voted

  1. 1. Turbo options 280-320wkw

    • EFR7163 IWG
      4
    • G Series G25-660 IWG
      4
    • Gen 2 GTX3076R EWG
      3
    • EFR7670 IWG
      0


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1 minute ago, Gripless said:

Man they are cheap and nice

 

Unbelievably cheap. Even with the extra features it shows how heavily the R&D bumped up the EFR price. 

The only downside is the CHRA being journal bearing and oil cooled only.

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14 hours ago, Gripless said:

Man they are cheap and nice

 

Such good value

 

14 hours ago, Andy_Mac said:

Unbelievably cheap. Even with the extra features it shows how heavily the R&D bumped up the EFR price. 

The only downside is the CHRA being journal bearing and oil cooled only.

 

R&D plus the BOV, BCS and IWG - but more than double the price 😅

 

14 hours ago, Gripless said:

That is a bit sad.

Have to go old skool and duct some of the scoop to cool the turbo 

 

Could run a secondary oil cooler just for the turbo maybe?

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8 minutes ago, Gripless said:

The efr have that titanium based wheel and billet compressor. 

That must add cost

 

On the Full Race site they list the S257 as same wheels as the EFR "57mm Forged-Milled EFR7670 compressor wheel, optimized aerodynamics" and "Inconel 70mm turbine wheel, same blade shape as EFR7670" but then the EFR7670 says "BW utilizes their 70mm Gamma-Ti turbine wheel" so I don't know if they are different or the same?

 

Don't mean to hijack your thread @Andy_Mac 😅

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15 minutes ago, RaKid said:

 

On the Full Race site they list the S257 as same wheels as the EFR "57mm Forged-Milled EFR7670 compressor wheel, optimized aerodynamics" and "Inconel 70mm turbine wheel, same blade shape as EFR7670" but then the EFR7670 says "BW utilizes their 70mm Gamma-Ti turbine wheel" so I don't know if they are different or the same?

 

Don't mean to hijack your thread @Andy_Mac 😅

The compressor wheel is the same, but the turbine wheel is titanium and is glued on to the shaft. The shaft is also different in the EFR series, as they would have to balance the compressor to turbine wheels.

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2 minutes ago, sleepr said:

The compressor wheel is the same, but the turbine wheel is titanium and is glued on to the shaft. The shaft is also different in the EFR series, as they would have to balance the compressor to turbine wheels.

 

Hmm, OK cheers!

 

1 minute ago, boon said:

Aerodynamically the same, but presumably a cheaper, heavier material. Same flow potential, worse spool and transient response.

 

So I think what should happen here is @Andy_Mac should purchase both the S257 and the EFR 7670 and back to back test them for us. Then we can figure out how many $ per reduced RPM spool time the EFR is worth 🤣

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2 minutes ago, Andy_Mac said:

Reckon a task like that has @Niran written all over it. Just skip the holiday for the Mrs and get a second equally sized turbo. You've already got the EFR part of the test sorted 

 

This is far more efficient - great idea

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I still am somewhat tempted but the response of the 7163 is just so hard to look past considering the mid range is my priority area. Aren't you keeping it at this point anyway?

 

Ultimate plan should be to sell me this one and buy @Tony, s big boy EFR

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