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vrracing · 03-04-2012, 07:27 PM

I found this picture of a helper spring on a Celica and using a 9.55 lb spring from HD we opened up one end of the spring and hooked it on the wastegate lever shaft inside of the actuator rod and then drilled a hole in the actuator's mounting plate. Using a length of wire to connect the spring to the bracket stretching the spring to about an inch.

We pulled the actuator hose off where it connects to the EBC and used the air compressor to put ~10psi to it and we could see the wastegate open. At that part of the pressure gauge we obviously we not going to be very accurate but the wg did open.

So we took it for a ride and once it got up to temp did a third gear pull and got up to 10.8psi and it only dropped to 8.8 when he let off. This was with the EVC set to 50%. It was 70 degrees outside.

So that's promising. We will use the HVLP paint sprayer's end of hose regulator and gauge use it to get a more accurate w/g opening pressure of 8psi. Then we'll do more scientific runs with logging.

03-04-2012, 07:27 PM	#10
vrracing Rotating Assembly Join Date: Oct 2008 Location: TX Posts: 102 Rep Power: 17	I found this picture of a helper spring on a Celica and using a 9.55 lb spring from HD we opened up one end of the spring and hooked it on the wastegate lever shaft inside of the actuator rod and then drilled a hole in the actuator's mounting plate. Using a length of wire to connect the spring to the bracket stretching the spring to about an inch. We pulled the actuator hose off where it connects to the EBC and used the air compressor to put ~10psi to it and we could see the wastegate open. At that part of the pressure gauge we obviously we not going to be very accurate but the wg did open. So we took it for a ride and once it got up to temp did a third gear pull and got up to 10.8psi and it only dropped to 8.8 when he let off. This was with the EVC set to 50%. It was 70 degrees outside. So that's promising. We will use the HVLP paint sprayer's end of hose regulator and gauge use it to get a more accurate w/g opening pressure of 8psi. Then we'll do more scientific runs with logging. __________________ 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