https://www.f150online.com/galleries....cfm?num=11901 This is what a supercharger does to stock motors

 

Nice mod!

 

Ok, how much boost and how lean was it running to detonate like that? What setup is that??

 

It is a procharger with 8 psi and the truck was running rich not lean, all on bank 2 witch is driver side

 

Lean conditions are what pops holes in pistons, that's odd that you were running rich when it happened.

 

That's why there isn't a supercharged/turbocharged car from any manufacturer that doesn't have, at the very least, forged pistons and crank. Nobody wants to put a warranty on the inevitable.

I love the profile of his truck, very clean and aggressive without all the BS add ons!!! Looks Very "Detroit" !!!!

 

What type of piston do our trucks have? Plain steel?

 

Hmm....I've seen a lot worse with a few drag 4 stroke motor's going clunk.

 

The pistons are cast aluminum, the crank is forged steel and the rods are steel that uses "cracked" ends.

I find it very hard to believe that the engine was running rich and a piston burned. The pistons are the first to go because they are aluminum, which melts at roughly 1200F or half the temperature of steel ~2500F or iron ~2800F. Lean conditions cause excessive heat and the pistons are the weakest link. Something does not add up.

 

That sucks, what are your plans for the motor now?

 

The new motor is done i will have it dyno tuned in 2 weeks to see what power it makes i want 550-600 rwhp

 

oh boy, this is gonna be nice!

 

That just don't make any sense. Something had to occur to create enough detonation to put that hole there. Either that injector misfired or some of the wrong octane was ran or something. 8psi is not that much.....

 

I agree with others, thats not what you would expect out of a engine thats "running rich". If it was running rich you must of been running too low of Octane. That or like the previous poster mentioned maybe that injector was malfunctioning and was only running lean on that one cylinder??

 

Whoa.. That's gonna scare people off from buying superchargers. Simply not an exact statement.

You can bolt on a supercharger and run low boost (less than 10PSI) and a completly stock engine and be fine for well over a 100k miles.

Like mentioned, detonation burns hole in pistons. Centrifugal blowers require more fuel at higher RPM than positive displacement blowers... It may pop a code for running rich around town, but when you romp on it.. it may be leaning out at the higher RPM.

One guy about a year of so ago had an 04 F150 trying to tune it for a 10lb pully... maybe 12.. Anyways, he was leaning out really bad in the upper RPM.. Changing the injectors won't fix the problem.. the fuel pump simply couldnt keep up with the demand.

But with a built engine, new fuel delivery (pump), and A GOOD TUNE, You could reach 550-600 RWHP.... with more boost of course . 8PSI won't get you there.