I blew my wastegate actuator!

[bhuff30]

Yup, blew the wastegate actuator diaphram. I was getting some nasty preignition at WOT that I couldn't get rid of by changing fuel pressure or timing. I don't have a boost gauge on my car now, so I proped the fuel pressure guage on the windsheild wipers and went for a drive. To my dismay, fuel pressure jumped from my base pressure of 42psi to 65psi when I got on it. That means I had been been spiking it to well over 20psi for the last week as I have been trying to get rid of the detonation.
Amazingly, I think the motor came through unscaved. Quite a feat considering I was getting some bad preignition at 20+psi of boost on nearly 10:1 compression. I pulled the wastegate rod, and I think I have a lead on a new actuator.

 

[willys1]

Yup, blew the wastegate actuator diaphram. I was getting some nasty preignition at WOT that I couldn't get rid of by changing fuel pressure or timing. I don't have a boost gauge on my car now, so I proped the fuel pressure guage on the windsheild wipers and went for a drive. To my dismay, fuel pressure jumped from my base pressure of 42psi to 65psi when I got on it. That means I had been been spiking it to well over 20psi for the last week as I have been trying to get rid of the detonation.
Amazingly, I think the motor came through unscaved. Quite a feat considering I was getting some bad preignition at 20+psi of boost on nearly 10:1 compression. I pulled the wastegate rod, and I think I have a lead on a new actuator.
Probably not to many motors out there that would hold up to that kinda abuse. Nothing special on my engine. Factory crank, rods, diamond pistons, stock headgasket.
I wonder if a 5.0 would hold up to that?

Hmmmmmmm,,wastegate actuater diaphrame,Hmmmmmmm,,LOL ,,LOL,sorry guys,,I'LL go back to my room!!wastegate,,,,,,,,,,,

 

[bhuff30]

I'm just glad I didn't blow the welds on the intake!

 

[mr_woodster]

Hmmmmmmm,,wastegate actuater diaphrame,Hmmmmmmm,,LOL ,,LOL,sorry guys,,I'LL go back to my room!!wastegate,,,,,,,,,,,

If you wanna know what it is, you can just ask.


Well bhuff...im still thinking that hybrid woulda fixed it

 

[351wcoupe]

need parts step into my office

 

[bhuff30]

Hmmmmmmm,,wastegate actuater diaphrame,Hmmmmmmm,,LOL ,,LOL,sorry guys,,I'LL go back to my room!!wastegate,,,,,,,,,,,

Sorry, I thought everyone here was a big boy. Maybe these will make you laugh too....
stroker crank
rear end
dumps
o2 sensor bung

 

[351wcoupe]

Sorry, I thought everyone here was a big boy. Maybe these will make you laugh too....
stroker crank
rear end
dumps
o2 sensor bung

Honestly I think you cross some kind of line when you say stroker crank.

 

[mr_woodster]

ack, my virgin eyes!

 

[willys1]

Honestly I think you cross some kind of line when you say stroker crank.

Who strokes there crank?