Only ERO's

iTrader: (19)

I would also guess a melted wastegate line. Been there, experienced that. I felt the 29psi+ at partially throttle. Was a damn rocket ship, but knew something wasn't right instantly.

denmah

iTrader: (2)

yeah i mean, it had to have been something like that, i doubt it dropped a valve or something out of nowhere.

Speed Freek

iTrader: (2)

Bummer to hear that...I lost a motor a few years ago due to a failed WG, that allowed 40psi in 1st gear just trying to roast the tires a little bit from a stop, and in that gear it all happens so fast I couldnt get my foot out of it quickly enough.
I was using Haltech PS1000 and hadnt finished setting up my failsafes (or actually just got lazy) and it bit me in the ***.

ShaunRF

This whole time I was assuming you were doing a truck manifold setup, due to your reputation for cheapness lol.

3 window

iTrader: (1)

Be careful with pulling all the timing if the boost gets out of control. That doesn't mean youre not gonna hurt it. Super low timing with fat AFRs will break ring lands. Yes, you might not punch a hole in the block, but you could end up putting set of pistons in it.

66Chevellelq4

So lets say your using a stock ecu and hp tuners, whats the best way to "failsafe" your tune for a stuck or seized wastegate? For instance i dont want to run north of 14lbs for right now, anything above 190 ish kpa should i just fuel the **** out of it and pull timing? or is there a smarter way to do it?

Photochop

iTrader: (74)

Depending on how you have your boost controlling set up the likelihood of this is fairly slim, otherwise you'd see threads about it happening everywhere. Yes, it can happen, but just another reason to imply the KISS method here, or spend the dough in a highly sophisticated co2 configuration. Not knocking Matt's ingenuity and creativity at all, but for the average joe there's just simpler ways to make it work.

What do you run for fueling? A method that worked for me in the past and what I'm going to do on my current build (there's a thread about it that came up a month or two ago) was running meth/water as a failsafe. Tune your setup on pump gas at your average max boost level (say 14psi), and run meth/water to have that detonation preventative and octane boost in case things get crazy without your intention.

denmah

iTrader: (2)

323z

Wow, it's didn't sound like a metal box of marbles, but damn if it is

Beanslsxnova

iTrader: (1)

Lord have mercy!

denmah

iTrader: (2)

turn up your speakers and try again lol
you could hear it easily eating itself

denmah

iTrader: (2)

black06g85

iTrader: (6)

mmmm carnage

3 window

iTrader: (1)

More props to the GM rod bolts!! Have you ever individually tuned cylinders by reading plugs? Seems 7 & 8 are often problem cylinders and the fact that you've seen the "starter suprise" more than once can make one think.

getboost

That sucks about your engine ,did that mac valve hang open and feeding the top of your wastegate ? I was hoping to see some awesome times. When the toys break unexpectedly, that's a big bummer. I sure enjoyed the burnout vids. Almost makes you want to put a stocker in it and just have fun till you gather parts for a better one, good luck

rwb

A little jb weld will fix it.

NateLS1Mustang

iTrader: (2)

Put it in a bag of rice...

But in all seriousness, that is catastrophic.

denmah

iTrader: (2)

denmah

iTrader: (2)

picking up motor tomorrow
2004 6.0 longblock
installing LJMS st2 turbo cam
BTR .660 platinum dual kit
and the billet s480

BanditDave

iTrader: (11)

Jesus Christ that's fantastic....anything worth doing is worth doing right!!!

Hats off to your unwavering persistence. I'll be back when it's ripping single digit passes then stopping to get groceries and lumber in a couple weeks...