Doh! (I'm not afraid to look like an idiot.)

chrisdfv

Corporal
Aug 29, 2017
270
216
0
Ride
E90 335i
I thought I had already toggled the “invert signal” required for boost box 3. So what was going to be my test map with 0% wgdc turned out to be 100%. Wot one sec, boom the next, Hanging rpm and no throttle. I thought I had blown the motor because the explosion was insane. Haha

The extreme overboost and throttle closure cause some sort of misfire/backfire. Ended up getting towed home.

One intake manifold and throttle body later the car is running fine.

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Jeffman

Major
Jan 7, 2017
1,620
1
629
0
I thought I had already toggled the “invert signal” required for boost box 3. So what was going to be my test map with 0% wgdc turned out to be 100%. Wot one sec, boom the next, Hanging rpm and no throttle. I thought I had blown the motor because the explosion was insane. Haha

The extreme overboost and throttle closure cause some sort of misfire/backfire. Ended up getting towed home.

One intake manifold and throttle body later the car is running fine.

View attachment 13518 View attachment 13519 View attachment 13520
Love it!
How much boost pressure do you estimate caused the manifold to explode? 40 or 50 psi? (Do you have a log haha!)

This is really a great one. This is the first time I’ve ever heard of someone’s N54 manifold exploding due to over boost. Thanks for sharing.
 

chrisdfv

Corporal
Aug 29, 2017
270
216
0
Ride
E90 335i
Love it!
How much boost pressure do you estimate caused the manifold to explode? 40 or 50 psi? (Do you have a log haha!)

This is really a great one. This is the first time I’ve ever heard of someone’s N54 manifold exploding due to over boost. Thanks for sharing.

I actually do have the log. I didn’t think it was the boost pressure in the intake that caused it to explode. The throttle blade closed so the motor didn’t see the boost pressure. Something caused some kind of backfire. Not really sure what still. Port injection wasn’t hooked up or anything.

https://datazap.me/u/cd919/intake-mani-explosion?log=0&data=3-6-23&solo=3-6



You hang that in the garage for historical proof it happened....Every experience is a later story to tell...

True. It’s funny to look back at it now. I wish I could have seen my own face. Lol
 

Rob09msport

Major
Oct 28, 2017
1,929
664
0
Monroe CT
Ride
09 335i msport le mans 18 x5
I thought I had already toggled the “invert signal” required for boost box 3. So what was going to be my test map with 0% wgdc turned out to be 100%. Wot one sec, boom the next, Hanging rpm and no throttle. I thought I had blown the motor because the explosion was insane. Haha

The extreme overboost and throttle closure cause some sort of misfire/backfire. Ended up getting towed home.

One intake manifold and throttle body later the car is running fine.

View attachment 13518 View attachment 13519 View attachment 13520
Nomination for winner and at least your hearts healthy i would have went into cardiac arrest and prob been trying to figure out if i should trade in wife or car first cause shed be stuck on repeat saying i told you your car is fast enough now look what you did lmao
 

LessIsMore

Specialist
Aug 21, 2017
56
22
0
Ride
09 535i
I'm dealing with something right now actually...
I went to change the diff fluid, and the 5" plastic hose from the handheld pump to suck out the old fluid fell into the diff and got stuck. I could not for the life of me get the tube out, although I spent hours trying. Ended up having to remove the diff to remove the cover to get the hose out.
 

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NoQuarter

Major
Nov 24, 2017
1,662
1,066
0
Indiana, USA
Ride
Z4 35is, 535xi, X5 35i
I'm dealing with something right now actually...
I went to change the diff fluid, and the 5" plastic hose from the handheld pump to suck out the old fluid fell into the diff and got stuck. I could not for the life of me get the tube out, although I spent hours trying. Ended up having to remove the diff to remove the cover to get the hose out.

Oh... that..... $&@!!!
 

Jeffman

Major
Jan 7, 2017
1,620
1
629
0
I'm dealing with something right now actually...
I went to change the diff fluid, and the 5" plastic hose from the handheld pump to suck out the old fluid fell into the diff and got stuck. I could not for the life of me get the tube out, although I spent hours trying. Ended up having to remove the diff to remove the cover to get the hose out.
Oh man!
 

doublespaces

Administrator
Oct 18, 2016
9,303
4,331
0
AZ
Ride
2009 E93 335i
I've lost my favorite 10mm socket to the hot side of my engine bay the other night. In fact i dropped a couple nuts and am not able to find them either. Hopefully they don't make their way into any pullies.
 

fmorelli

Lieutenant General
Staff member
Aug 11, 2017
3,748
3,592
0
57
Virginia
Ride
E89 Z4 35i, F10 535d
I've lost my favorite 10mm socket to the hot side of my engine bay the other night. In fact i dropped a couple nuts and am not able to find them either. Hopefully they don't make their way into any pullies.
Run a magnet tool down there and spend some time poking around. I did the same ... took a while to find it.

Filippo
 
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zero2sixtyZ

Specialist
Nov 6, 2016
66
52
0
Boston, MA
Ride
E92 335i
Had the car on jack stands with an engine brace on top to install 034motorsport engine mounts (which were not worth it). Finished everything underneath the car, and removed the brace from above. Friends brought the car down on the two jacks. As the hood couldn't be fully open in the garage while up on stands, it came slamming down.

I removed the brace but forgot to unscrew the tow hook off the top. Nice dent in the middle of the hood. Whatever labor costs I saved went into a new hood + paint.
 

Jeffman

Major
Jan 7, 2017
1,620
1
629
0
Had the car on jack stands with an engine brace on top to install 034motorsport engine mounts (which were not worth it). Finished everything underneath the car, and removed the brace from above. Friends brought the car down on the two jacks. As the hood couldn't be fully open in the garage while up on stands, it came slamming down.

I removed the brace but forgot to unscrew the tow hook off the top. Nice dent in the middle of the hood. Whatever labor costs I saved went into a new hood + paint.
Ouch!
(Thanks for sharing.)
 

NoQuarter

Major
Nov 24, 2017
1,662
1,066
0
Indiana, USA
Ride
Z4 35is, 535xi, X5 35i
read a post on another forum....

Dude was doing his oil pan gasket and was having trouble getting the sub frame lined back up to put it all back together and his front tire was hitting the front of the wheel well. What??????

He had is car on ramps! Front wheels on the ramps, engine unsupported, subframe dropped and this guy was working under that!
 

SlowE93

Major
Jul 2, 2017
1,655
1
960
0
Just a plane ticket away !
Ride
E93
read a post on another forum....

Dude was doing his oil pan gasket and was having trouble getting the sub frame lined back up to put it all back together and his front tire was hitting the front of the wheel well. What??????

He had is car on ramps! Front wheels on the ramps, engine unsupported, subframe dropped and this guy was working under that!
How would this be possible ? The subframe was dropped already and he was having trouble lining it back up to put it back together ????
 

doublespaces

Administrator
Oct 18, 2016
9,303
4,331
0
AZ
Ride
2009 E93 335i
read a post on another forum....

Dude was doing his oil pan gasket and was having trouble getting the sub frame lined back up to put it all back together and his front tire was hitting the front of the wheel well. What??????

He had is car on ramps! Front wheels on the ramps, engine unsupported, subframe dropped and this guy was working under that!
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