[Supras] 57 trim blowoff valve

[Rockey Fox]

Personally, I had a bit of back pressure from the stock turbo with a properly functioning stock BOV and it hasn't gotten appreciably worse with the 57 trim at 10 psi. I did try the Porsche BOV for a short time a couple of years back but ruptured the diaphram pretty quickly ad have since been running the stock BOV without the "hooting" at near 0 psi. I'm still deciding what if any change to make when I finally get the speed density functioning with the MAFT-Pro install which will allow vent to atmosphere and eliminate the restrictive AFM. first thing now is the clutch replacement but the MAFT is close behind....hopefully before Christmas.

Rockey 91T

----- Original Message ----
From: "berniek at technicaldevelop.com" <berniek at technicaldevelop.com>
To: supras at supras.com
Sent: Wednesday, November 14, 2007 11:40:54 AM
Subject: Re: [Supras] 57 trim blowoff valve


Something seems fishy here.  When planning to do all of the upgrade,
 the
"hot" recirculating type BOV was the Porsche-Saab rignt angle type.
  Now I
find that it surges, with short piping.  What is going on here?

Bernie


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