Want to build costom turbo kit. Need advice from boosted guys! - Toyota Yaris Forums

Bluevitz-rs · 09-12-2010, 11:49 AM

Is there any way to open it up to trim the spring shorter, making it open under less pressure?

Nexus1155 · 09-12-2010, 01:47 PM

Everyone always says adjusting the nut and increasing the tension or decreasing tension on the spring will change where it actuates at. I have had the exact opposite experience whenever i was adjusting turbos. I tightened it a few cranks past where the wastegate would be shut closed just to have it tight. Cracked around 10psi, anything tighter still cracked at 10psi.

I mean I get the concept, its just like a boost controller with a spring, turn the knob make the spring smaller, ball only allows so much movement in spring to allow air to flow through.

I'd say its worth a try to just fiddle with it, but you never want the wastegate itself loose/ cracked open, always shut tight when you have the actuator on.

pimp my yaris · 09-12-2010, 01:49 PM

Quote:

Originally Posted by Bluevitz-rs

Is there any way to open it up to trim the spring shorter, making it open under less pressure?

I could cut it open but I dont have a welder to put it back together. I still may try that. Mabe find a weaker spring. Thats what I was looking for.

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09-12-2010, 11:49 AM	#1
Bluevitz-rs 1NZ-6spd View User's Garage Drives: '05 6-Spd Vitz RS Join Date: Oct 2008 Location: Oshawa, Ontario, Canada Posts: 2,967	Is there any way to open it up to trim the spring shorter, making it open under less pressure?

09-12-2010, 01:47 PM	#2
Nexus1155 Bathroom + Laptop = <3 Drives: Audi Join Date: Aug 2006 Location: Dorchester Posts: 1,009	Everyone always says adjusting the nut and increasing the tension or decreasing tension on the spring will change where it actuates at. I have had the exact opposite experience whenever i was adjusting turbos. I tightened it a few cranks past where the wastegate would be shut closed just to have it tight. Cracked around 10psi, anything tighter still cracked at 10psi. I mean I get the concept, its just like a boost controller with a spring, turn the knob make the spring smaller, ball only allows so much movement in spring to allow air to flow through. I'd say its worth a try to just fiddle with it, but you never want the wastegate itself loose/ cracked open, always shut tight when you have the actuator on.