Boost falling off

vrracing · 05-11-2012, 10:44 AM

Before the helper spring we would peak at 9.9 @ 4600 and then drop to 7 by 6000 as can be seen in my first post with the graph.

I assume BNR doesnt replace the WG so boost is controlled by a 20 year old spring that has gone thru many heat cycles. It seems reasonable to assume that different springs will degrade at different rates.

I doubt that the version of EVC matters. This one is a Black Edition but I've never been able to figure out which normal edition that maps to. It only displays in kpa but since we use the Zeitronix for monitoring boost it doesnt matter.

05-11-2012, 10:44 AM	#1
vrracing Rotating Assembly Join Date: Oct 2008 Location: TX Posts: 102 Rep Power: 17	Before the helper spring we would peak at 9.9 @ 4600 and then drop to 7 by 6000 as can be seen in my first post with the graph. I assume BNR doesnt replace the WG so boost is controlled by a 20 year old spring that has gone thru many heat cycles. It seems reasonable to assume that different springs will degrade at different rates. I doubt that the version of EVC matters. This one is a Black Edition but I've never been able to figure out which normal edition that maps to. It only displays in kpa but since we use the Zeitronix for monitoring boost it doesnt matter. __________________ 90 S5 Vert. JDM Tii with BNR Stage1 turbo. Pineapple Racing street port. Bonez cat-forward. Corksport cat-back with Vibrant UltraQuiet resonator. RTek 2 wZeitronix w/b. HKS EBC. Vis CF Tii hood. 3000GT wing. Ground Control coilover kit with KYB AGX shocks. Red and Black leather RX8 seats. Corksport Odura lip & bumper caps, OEM Tii skirts