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Old 09-29-2015, 02:34 PM   #312 (permalink)
BabyDiesel
Lean Burn Cruiser!
 
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Location: Johnston County, NC
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Quote:
Originally Posted by pgfpro View Post
With the Cd you have now that would be a good choice with a 2.0 L engine, if you somehow get it down to a 1.0 L then I would go much smaller.

If you drop your Cd down from what it is. sub-0.20 Cd then you will just use the turbo gain some HP when not in lean burn. So in this case i would run a much smaller turbo.
Can you explain why it is too small? Not trying to be hard, I just want to know would it be too big even if VGT was enabled?

Quote:
Originally Posted by hardline View Post
I think that turbo is too big. I am using a GTX2863R and I don't start to even see boost until 2000 RPM, and fully spooled by 3600 RPM, but then again I am running much higher pressures, and for a different intended purpose than you are wanting to do.

Specs below for my turbo.

Compressor - GTX2863R
Inducer - 47.1mm
Exducer - 63.4mm

Compressor Housing - GT28 with Anti-Surge Machining
Inlet - 3"
Outlet - 2"
A/R - .60

Turbine - GT28
Inducer - 53.9mm
Exducer - 47.0mm

Turbine Housing - T31
Inlet - T3 flange
Outlet - 2.5"
A/R Ratio - .82

CHRA
Dual ball bearing
Water cooled
If the 6.0 turbo is too big, then yours is almost right. I want/need no boost until 2500-2600 rpm. When i swap to a Escort Sedan manual tranny, i will be turning 2250 @ 55 mph. I need to reserach and find a turbo slightly bigger than yours. One off a V6 *should* be what I need.
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Past threads:
ZX2 modding thread
Ecomodder's Top 10: How they do it!
ZX2 Aerodynamics: Shooting for 0.15 Cd
ZX2 coast-down testing for Cd & Crr
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