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factory turbo manifold limits

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#1 winstonusmc


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Posted 01 December 2012 - 07:42 PM

I am adding twin turbo to my VQ35DE in my G35, yeah its not a Z I know. I bought a stock set of VG turbo manifolds to bolt on as they bolt on. I looked at them and noticed they seem quite restrictive compared to RB26 manifolds. What is the limitations of the stock manifolds and would bolting a set of uprated turbos to them like a set of GT25R be good for 450whp. I am sure aftermarket headers would be good, but I am trying to build a base setup for now and upgrade later.

'72 240z w/ RB25DE ITB MS3/MS3X


#2 Midnitz


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Posted 23 January 2014 - 06:18 PM

VG Turbo manifolds can be ported to increase flow capacity. Extrude Hone also does a good job opening the internal volume up and leaving a polished smooth finish. I have seen people with stock VG30DETTs pushing over 500hp to the rear wheels on stock turbos.

When it comes to cars, always remember...
Good + Fast = Not Cheap
Fast + Cheap = Not Good
Good + Cheap = Not Fast

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