Thread: Yet another 18g
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Old 02-06-2008, 10:22 AM   #11
David L.
Scooby Specialist
 
Member#: 130632
Join Date: Oct 2006
Chapter/Region: NESIC
Location: Newport R.I.
Vehicle:
2002 Z28 35th Ann.
Pewter

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Quote:
Originally Posted by Iflysti06 View Post
I am not very impressed with the numbers! Here is a stock sti @ 21lbs on that same dyno! Makes me wonder what your psi is set at on the 18g?
As said below by testes1010 about the 19psi is below the 18g's efficiency range. 21psi on a vf39 you are close to maxing it out...unless you add meth that is.

Quote:
Originally Posted by testes1010 View Post
It shows the boost curve right on his plot.

The car should have another 35whp or so in it if they chose to actually push the car into 23-24psi range(where it belongs IMHO). I can't believe there is still people running the MHI upgraded turbos under 20psi.
Guilty as charged for me. I am only @18.5psi on my '06 due to cooling issues...meth and 23psi coming soon for me....along with a possible Mortal Kombat finishing move on my tranny...
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