Boost v. Horsepower. Danger?

[GTX Builder]

Installing vortech supercharger w/aftercooler running 9lbs of boost on a 2006 gt. New throttle body already installed (dyno proven by my shop to produce xtra 5 peak rwhp and 22 lbs of torque. Have already purchased jba ceramic long tube headers with h-pipe w/cats and magnaflows. Problem is I believe these mods will produce more than the 450 rwhp that has been identified as "dangerous" by several members of this forum. (all this is based on anecdotal evidence of blown engines at these power levels.) My question is: Is it the horsepower that blows these rods and pistons or is it excessive boost levels. In short, assuming 9 lbs of boost is safe, does it really matter how much horsepower the engine produces as it relates to engine longevity. If there is anybody with expertise on these issue please respond as I think others might have this question also.

 

[Motorhead6T5]

The rods and pistons just can't handle it,even without detonation.

 

[fin1]

Torque is the issue in which hp is calculated from. Boost is simply a way to increase torque by forcing more air, and subsequently more fuel, into the engine. There is no magic number and allot comes down to getting a good custom tune. So it does not matter if you run only 4lbs of boots with nitrous or 15lbs of boost without it. It's not a matter of how much boost (or any power adder for that matter) you use but rather how much tq/hp you measure on the dyno.

Frankly all your non-sc add-on are minor compared to the blower. Heck, you can get a +5 hp gain on weather changes alone. Focus on the dyno numbers you get with the sc. You can always dial back the timing & A/F ratio to be safer @ a bit lower tq/hp. Or get a larger pulley if you want to pull back on the boost.

 

[1fastz]

Installing vortech supercharger w/aftercooler running 9lbs of boost on a 2006 gt. New throttle body already installed (dyno proven by my shop to produce xtra 5 peak rwhp and 22 lbs of torque. Have already purchased jba ceramic long tube headers with h-pipe w/cats and magnaflows. Problem is I believe these mods will produce more than the 450 rwhp that has been identified as "dangerous" by several members of this forum. (all this is based on anecdotal evidence of blown engines at these power levels.) My question is: Is it the horsepower that blows these rods and pistons or is it excessive boost levels. In short, assuming 9 lbs of boost is safe, does it really matter how much horsepower the engine produces as it relates to engine longevity. If there is anybody with expertise on these issue please respond as I think others might have this question also.

me thinks you meant 2 pounds feet of torque as there is simply no way you will gain 22 pound feet from a tbody.

and you are on the raged edge with what you have.

 

[300bhp/ton]

Installing vortech supercharger w/aftercooler running 9lbs of boost on a 2006 gt. New throttle body already installed (dyno proven by my shop to produce xtra 5 peak rwhp and 22 lbs of torque. Have already purchased jba ceramic long tube headers with h-pipe w/cats and magnaflows. Problem is I believe these mods will produce more than the 450 rwhp that has been identified as "dangerous" by several members of this forum. (all this is based on anecdotal evidence of blown engines at these power levels.) My question is: Is it the horsepower that blows these rods and pistons or is it excessive boost levels. In short, assuming 9 lbs of boost is safe, does it really matter how much horsepower the engine produces as it relates to engine longevity. If there is anybody with expertise on these issue please respond as I think others might have this question also.

450rwhp is just a guide, but remember most of the people saying this use Dynojet Dyno's. If you make 450rwhp on a Mustang Dyno then you are far in excess of 450rwhp Dynojet ponies.

In all don't take the numbers as given, and they are only a guide. If 450rwhp is claimed as the break point, then anything near it is probably running the same risk.

If you don't drive the car hard that much and keep it in good order with a good tune, then it might be fine for years. But then again it might let go even with only 400rwhp.

If you run FI, you also run the risk of trouble. Best bet is to start saving up for an engine rebuild. This way you can have some fun now and if it blows you're ready to rebuild.