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Posted (edited)

Today I just installed my Magnacharger Kit on my 03 Silverado SS AWD which I ordered from a fellow SilveradoSS.com member that included:

- Magnacharger Radix Intercooled Supercharger kit

- approximately 12K miles

- complete kit minus the hand held programmer magnacharger ships with the kit

- upgraded pulley installed for 8-9 lbs boost

- revised tensioner asm

- ECU from an '03 Silverado SS custom programmed for 8-9 lbs boost w/Meth injection

- Alkycontrol.com progressive methanol injection kit

 

The only other aftermarket part I have besides these is a Flowmaster exhaust. I have done oil changes every 2500 miles with Mobil 1 (Ha! what a waste)

and the truck only has 46,000 miles.

 

I installed it today with no problems whatsoever. I took it out for a drive, it was driving great. Then after sitting for about an hour, I took a friend for a ride around the neighborhood doing about 30mph, then gunned it, and BOOM! Heard a lot of internals busted and coasted back to my house. Pretty sure theres a rod through the block.

 

Well this is my daily driver and I have no money to fix it! =) I can only hope my aftermarket Warranty will cover it.

 

Well this is a lesson learned by me for anyone who wants to know what will happen with forced induction.

 

Anyone know a place I can order a built motor for my truck for daily driving? Thanks.

Edited by SS Chevrolet Set (see edit history)
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Posted (edited)

Wow..Did you have a wideband hooked up? Who did the install? Did you install Colder Spark PLugs?What mods did the PCM have on it for the tune...sounds to me your AFR was way off and went boom

Edited by brobradh77 (see edit history)
Posted

The wideband was on but not hooked up. I installed it with new iridium spark plugs and I am not sure on the PCM it was tuned with the same kit on my truck, so I installed it.

Posted
The wideband was on but not hooked up. I installed it with new iridium spark plugs and I am not sure on the PCM it was tuned with the same kit on my truck, so I installed it.

 

You reallly needed to kow his mods...that makes a diff. in the tuning...wideband is probably the most important gauge you have for FI...it tells ya when your about to go boom.

Posted

put the top end back to stock first,then set up appiontment for warrenty,if that fails pick up a used lq4 6.0 from a local yard then work on the old one if can be saved.

 

Truly sorry to here the bad news,if you need a hand call me!

 

Ray

Posted
You reallly needed to kow his mods...that makes a diff. in the tuning...wideband is probably the most important gauge you have for FI...it tells ya when your about to go boom.

 

 

I am a newby to this stuff, how do you read the meter to know its about to go boom.

Posted
I am a newby to this stuff, how do you read the meter to know its about to go boom.

 

 

when it reads lean in boost, typically while in boost you want a 11.4-11.8 afr. on n/a setups you want mid 12's.

 

idling and cruisng should be mid 14's anything above these can cause lean conditions and create excessive heat and cause catostrophic engine failure.

 

 

 

im guessing something with fueling and spark were the cause, maybe not enough fuel pressure a lean tune or to much timing. did you hear any detonation before it popped?

Posted

Sounds like the tune was lean and with too much timing. I'd also guess that the meth wasn't working correctly.

Posted

Size? It was upgraded running 9PSI thats all I know. If anyone knows good built long blocks that could point me in that direction that would be awesome thanks.

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