jpmustanggt

How many people if any do you know that have blown their engines with boost and how much hp were they running? I know if you stay around 400 then you're pretty much safe but I just want to make sure.

03sonicgt

I knew a guy with an 02 gt with a vortech on it at like 10psi, he had an injector go bad and...boom, he blew the motor. He's running a 100 shot now.

sweet99

It's just not the amount of boost though that is a contributing factor as seen with the 4psi being offered in the Group buy for the Saleen blowers. Ignition timing, Air Fuel Ratio's and Exhaust Gas Temps are part of the reason a motor may blow. A Dyno tune and having boost gauge, wideband o2 meter and an EGT gauge are good tools for insurance especially should you get into higher boost levels.

pdk

threw rod out cylinder 5 or 8..cant remember the number but it was the driver side closest to me.
447/420 @ 7 psi p1sc, stock s/b w/Patriot2 and vt2blwr cams

but hey...im up to +750 miles on the new break in and it only took a year

jpmustanggt

So is it pretty safe or should I go ahead and forge the motor with the money I have saved.

03sonicgt

Thats a tough one man, it would be really nice to have a forged shortblock right when you get the blower so you could see high boost. But I bet you really want that blower now. It's really your call man, you should be plenty safe if you get a tune with a blower.

QWBYDAVE

Im having the same worries...

Im going with 8lbs of boost on a stock v8 2006 mustang, and will be forging afterwards when the funds are right again...hope I dont blow the engine...

sweet99

For 8 lbs I would have some extra fuel and gauges to monitor what is going on. My last ride was a '93 eagle talon that was making 30psi of boost and probably 500HP at the crank on a 2.0 liter motor, that's 122 cubic inches but i had forged pistons and rods/KNIFE EDGED CRANK, balanced rotating assembly and an O-ringed head. Stock it had 450cc inj's./I had 950cc's in there with a chipped ECU. Wideband o2 meter is very handy is an EGT gauge. It seems the Mustang crowd just wings it or trusts the reflashed chips THAT THE SC VENDORS SUPPLY. Get at least a wideband and don't run leaner than an 11:1 Air fuel ratio on 93 octane. You must have some SC guru's here to asist with tuning and what to watch for with these motors right? mark

avlon06

could some one explain the AF ration i am a little confused about it..

03sonicgt

an air to fuel ratio messuares if the car is running rich or lean.