[nike]

Looking for a map for a box Borg Warner 366/73.90 w T4 flange...



Done some serching with no results.. Anyone chime in?

Thanks,
Frank

 

[Farmerbrown]

BorgWarner Turbo S300SX3-66 S366 91/79 (S300) PN: 177275

Here ya go.

 

[nike]

Thank you.

I don't really know what I'm looking at there... At what psi is this turbo the most efficient and what psi is it "out of its map".

Thanks again.

 

[Superduty]

How to read Turbo Compressor Maps : Subaru tuning : Nissan GTR tuning : Mitsubishi Tuning : EcuFlash tuning : EFILive : EngineLogics.com

That maps shows the 366 to flow a maximum of 75 pounds per minute at a pressure ratio of 3.8.

(3.8 -1) = 2.8 x 14 PSI = about 40 PSI of boost. I used 14 PSI for the turbo inlet pressure. If you live at a higher elevation or run a constricted filter, it will be lower.

If you try to flow more than that or that much at a higher pressure, it will go out of the map.

At lower flow rates it has a pressure ratio of 4.8, which is (4.8 -1) x 14 PSI = over 50 PSI of boost.

 

[nike]

Therefore, at sea level, 40psi is all someone would want to see out of this turbo on a regular basis?

 

[Superduty]

Therefore, at sea level, 40psi is all someone would want to see out of this turbo on a regular basis?

Yep. And it has as good a compressor map as any. If you need much more than 40 PSI, you probably need twins.

 

[davematthews]

Therefore, at sea level, 40psi is all someone would want to see out of this turbo on a regular basis?

Can I poke fun at you yet? Or is it still an open wound?

 

[nike]

Its trying to heal but someone keeps picking at it.... :hornet:

Probably help if I take the bandaid off and just do surgery huh?

 

[davematthews]

Its trying to heal but someone keeps picking at it.... :hornet:

Probably help if I take the bandaid off and just do surgery huh?

Yes sir. I've got a scapal ready whenever your ready. Good thing about it is, as long as you get rid of that s300 base turbo, you shouldn't have to touch it again.

And I'll quit picking at it. :S: