does the turbo boost control solenoid on s5 turbos prevent the wastegate from seeing a signal at all until the turbo is making full boost (to accelerate spool-up) or just regulate the maximum amount of boost made? it's not clear in the FSM.



if only the latter, i'm thinking of rigging a ghetto boost controller with a Hobbs-type switch.



thoughts/info?

the ecu can tell the boost controller how much boost to run. you don't have to use its very inefficient!!!! i would suggest a manual controller like http://www.dawesdevices.com

just leave the solenoid hooked up but don't hook up any vacuum lines https://www.nopistons.com/forums/pub...IR#>/smile.png

My thought, other than what Vosko said, is that you have the LOOONGEST ******* screen name ive ever seen. https://www.nopistons.com/forums/pub...1047683785.gif

it's a bleed type... ball and spring is much better.



anyone running an FCD should not be using the stock boost contoller... I'm pretty sure it'll creep higher then not having one at all.

yeah, that is a pretty funny name, if long, what part of FL you in? (beware of sorrow rpmwarz, he is scary)

on the dawes site says its not a bleed type.



you could also get http://www.boostvalve.com



if you have $200 to spend you can get the greddy TVVC i have one of those sitting in my room https://www.nopistons.com/forums/pub...DIR#>/wink.png

i know this much. what i want to know is if the the boost control solenoid ALSO acts something like an aftermarket electronic boost controller, preventing the wastegate from opening at all until desired boost is attained..?



Scott 89t2: afaik the FCD doesn't cause boost creep, it just allows people to run their engine with mods that cause boost creep for a little longer before blowing things up

i know this much. what i want to know is if the the boost control solenoid ALSO acts something like an aftermarket electronic boost controller, preventing the wastegate from opening at all until desired boost is attained..?



Scott 89t2: afaik the FCD doesn't cause boost creep, it just allows people to run their engine with mods that cause boost creep for a little longer before blowing things up[/quote]

the solenoid only works with a stock exhaust its TINY! when you put exhaust on it can't do anything. i guess you have seen a greddy profec solenoid its bigger than a rubix cube! :o

anyone want to actually answer my question? <_<



c'mon, it's an easy one if you know it.

i answered your question above your post. the stock solenoid is for controlling STOCK boost on a stock car!!!! once you modify it all it will do is cause your boost to hit 15psi. ask me how i now this. is that a clear enough answer ?