tonyt123blue

iTrader: (8)

let me start with what I have.stock bottom end LS1 5.3 heads patriot springs
running a G5X3,underdrive pulley full exhaust.I have upgraded to a walbro 255 intank pump and 30 ld svo injectors.
N/A the car put down 423HP to the wheels.
with nos 573rwhp and 560s tq
my afr is about 12 to 1 I can richen it if needed I dont spray that much so i left it there.my question is how long can a stock bottom handle this power level?and what is the most any one has heard of on a stock bottom before popping.I already used the search with little to no help.thanks for your comments in advance.

Ryan02SS

iTrader: (3)

The stock pistons seem to hold up well to modest N20 shots assuming the engine is receiving adequate fuel and is not detonating. A little of the latter will destroy a piston very quickly. The increased cylinder pressure will eventually take it's toll on the rings and ringlands. It's dependant on how much you spray it.

cantdrv65

iTrader: (3)

My old cam only camaro made in the low 500rwhp with a TNT 150 shot...When I sold it it had 114,000 miles on the clock. I sprayed it since it had around 25,000 miles on the car. I always made sure it ran a little fat, and monitored things with an A/F gauge. I did have a fuel noid fail around 80,000 miles, A/F gauge saved the engine.

gnx7

iTrader: (28)

I have heard and read with the proper tune and the timing backed down a 150hp shot is about the limit on a stock shortblock and not have any bad consequences for the long term. Seems like higher shots make the ring lands on the pistons fail.

A window switch is a good idea as well. It is on my list of goodies to order.

tonyt123blue

iTrader: (8)

yeah I have a window switch.