Ext Wastegate and Elect. Boost Controller question---

alwayscode390

pppssssshhhhhtttttttttttt
Do I install the lowest or highest boost spring in my wastegate before I install it and connect the electronic boost controller? My setup can use a 5lb spring or a 15lb spring. Thanks ---
 

Ian Turgeon

Cascading Inspiration
Re: Ext Wastegate and Elect. Boost Controller question---

Using the spring that is closeset to your desired boost should give you better results, but of course limit your adjustability below that point.
 

Flyin Ryan

hated cuz he drives fords
Re: Ext Wastegate and Elect. Boost Controller question---

I'm not 100% on this but I believe the wastegate spring rating determines your base boost.. from there to achieve more boost you'll have to manually raise the boost via a manual or electronic boost controller..
 

alwayscode390

pppssssshhhhhtttttttttttt
Re: Ext Wastegate and Elect. Boost Controller question---

Thanks guys.....but you both said the opposite thing, hahaha. I will figure it out :) ---
 

SCWolverine

New member
Re: Ext Wastegate and Elect. Boost Controller question---

They're on the same page, Ian is sayin' that if your target is, say 20#, you don't want the 5# spring (15# is closer), and controlling a 10# target with a 15# spring will be rough.

Per Boosted put the X# spring and use a controller to dial in above that, or direct turbo to wastegate (no controller) for "base" boost (approx spring rate, some adjustment via wastegate rod).

Neither are leading you astray, just depends on what you're trying to accomplish, more info here:
http://www.syty.net/forums/showthread.php?t=29831&highlight=wastegate+spring+boost

and
http://www.syty.net/forums/showthread.php?t=9985&highlight=wastegate+spring+boost

hth
 
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