Turbo wastegate questions

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bityw

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In doing some more research, a number of F150 owners with the 3.5 Eco who did this reported some loss of power/more lag when accelerating, and that going away when they took the springs off. Did you notice that too?
I have not notified any loss or lag of performance. I put them on at ~89k and now I’m at ~121k without issue (knock on wood).
 

TX-EXPMAX

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I've had these springs sitting on my work bench for months now. Just saw this thread and went out and installed. No tire removal or crawling underneath. I just turned the front wheels to get access, reached up in there and popped them right on. Rattle is pretty much gone, now just need to go for a test drive!
 

5280tunage

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I've had these springs sitting on my work bench for months now. Just saw this thread and went out and installed. No tire removal or crawling underneath. I just turned the front wheels to get access, reached up in there and popped them right on. Rattle is pretty much gone, now just need to go for a test drive!
Same, guess it's time to finally do this, once it gets back from a new tranny, not sure if that will be this calendar year or not, lol
 

Fizzy

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what part # springs u use? Nicely done!
The slightly longer spring - 540183. It really only applies the slightest pressure. Will know if they really worked the next time I’m in a drive through beside the wall.

Came in a six pack so a few spares for when these rust out.
 

bmpcamry09

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Nice work.

I had a hard time believing people who were saying the springs reduced their performance. That's not even how the wastegate system on these works. The gates are held back by the actuators until needed. Check engine lights would pop off like mad if the wastegate actuators weren't functioning properly. There's about 20 possible PCM codes related to that system and all are sensitive.

Those springs will not be harmful to those wastegate actuators. No one realizes how strong those actuators actually are. Try holding one back immediately after cold start and it'll shove your hand right out of the way.

I throw springs on every single 3.5 from 17-20 that I work on, never had any issues. Tuned or stock. Doesn't matter. But on all of them, the chatter at cold start is greatly reduced. Chatter from the turbos heard during acceleration can be modified via wastegate tables in tuning as well.
 

Fizzy

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I had a hard time believing people who were saying the springs reduced their performance.
Yeah, I was a little skeptical too. The placebo effect can be pretty powerful. People will swear something is happening just because the idea is in their head, despite no real world actual difference.

The only thing I’m wrestling with is whether I should take the springs off before any pre-paid maintenance visits, extended warranty visits etc. I can imagine Ford seeing those and blaming everything imaginable on them.
 

DWs-TTEB

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Winter rim changeout done today. Whipped the springs on whilst the wheels were off. Easier than I was expecting. Driver side was a little trickier as a right handed person.

View attachment 82720

View attachment 82721
Used these same springs and installed them today. Used my hand and needle nose pliers and about 5 minutes of my time. Reached in over the wheels and pulled back the wheel well liners.
 
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