10-15-2019, 01:02 AM
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#10 (permalink)
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Enthusiast Member
Join Date: Nov 2016
Location: Washington
Posts: 286
Drives: 2014 Nismo
Rep Power: 27366
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Quote:
Originally Posted by Senna-F1
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Well, I'm making 12.3 psi boost. Stock pulley, Motordyne LTH, Helmholtz test pipes, Motordyne exhaust. Seems pretty high. Eugene says Im at 77% duty cycle on pump gas on my Walbro 480/1050cc combo which was supposed to already be an upgrade pump wise just to be safe. We need to check fuel pressure under boost. So, plenty of boost, but no room for E85 at this duty cycle.
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Welcome to my world, now you understand?  . Out of curiosity how consistent is your boost over different WOT pulls? I have about a 1psi variance, I've seen as "low" as 11.8 to 12psi and as high as 13psi, with no changes.
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