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Maxing out turbo...

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Old May 26, 2008 | 07:52 PM
  #1  
Done's Avatar
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Maxing out turbo...

Full Race Manifold (Single Scroll)
GT3076r .63 a/r
Full Race 3" Downpipe
780cc Injectors
Greddy Titanium Exhaust (80mm)
Greddy Guages (Boost, Water Temp, Oil pressure)
Full Blown Dual Pump setup (2 walbros) - Only one pump hooked up currently

Just ordered:
ETS 4" Intercooler
ETS Short Route Upper Intercooler piping (tial bov)
Tial 50mm Bov
3" GM MAF (Setup, Blow-through)
MAF Translator

Thoughts:
Aquamist HFS-5 with two large tanks

My setup is daily driven so I plan on using two large tanks to aid in not needing to fill up so often. I plan to use the Aquamist kit to help spool the turbo. I want it to progressive spray as boost comes on. Plan to up boost to 25-28psi and add a nice bit of timing with the help of a 50/50 meth/water mixture.

My question is if I were to add a Driven Innovation Manifold would I actually pick up 20-30whp even when the turbo is at its maximum output. I'm thinking the easier the engine flows the less boost I will need to max out the turbo.

What about cams?

Are my thoughts accurate?
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Old May 26, 2008 | 08:19 PM
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Cams and an intake manifold will allow the engine to consume air faster... any time this happens, you are asking the turbo to do more work, because your boost controller is trying to maintain high pressure while the engine is doing a real good job of using up that air and dropping the pressure.

If you are unable to continue holding boost in high RPMs, then the turbo is likely maxed out and is unable to flow enough lb/min to continue to maintain whatever PSI you are trying to hold.

One possible scenario for arguments sake is... say you are able to hold a solid 28psi to redline on stock intake mani & cams. You install the aftermarket manifold and cams, and now boost tapers to 25 psi at redline.

Bottom line... you will get gains from the parts, but its possible that your turbo cannot fully take advantage of your engine's consumption rate.
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Old May 26, 2008 | 08:21 PM
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From: Seattle, WA
GSC S2
Aquamist
DI manifold
30psi

For maybe quicker spool you could try the Cosworth M2 also but S2's will have more up top.
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