First post here so try not to judge me to bad



I have a 2002 tahoe with a supercharged 5.3. I'm wondering if i could do a 75-100 shot and still be ok or do you think the motor would come apart?

Mods
tsp 220r cam, dual beehive valve springs, 1 3/4" long tubes, 770cc fic injectors, Aem water/meth kit, and vortex v3si centrifugal supercharger running 11-12 psi .
Trans is a 4l80e with Hd2 and a circle d 3200-3400 stall.

 

Welcome to the endless money pit I'm thinking it may be a crap shoot on that early model. I wouldn't unless you're prepared for disaster.

 

I mean I'm always prepared for disaster. But thanks for the inf . What do you think would be the weak point?

 

Rods and pistons...ring lands. As many here will tell you Gen 4 rods are the ticket I believe 05 up?

 

04 was a split year 50/50 2005 for sure and newer are gen 4

i know guys do boost + nitrous on built bottom ends not sure about a stock block, a good nitrous setup all said and done is well over $2,500 kit, warmer, purge, gauge, timing controller, progressive controller then tune = $$$

if i was you id take that money and drop a fresh forged 6.0 or put a nice set of heads and other bolt'ons

 

I would do the forged 6.0 and then next tax season hit it with a fat shot!

 

You could spray it off the line and let out of the spray as boost comes in. Like 1500-3000rpm range

I would not hit it with a shot at full tilt tho. IMO you are already at the "safe" maximum for Gen3 rods. Not that these motors can't take more, they obviously can: but most guys who don't want to build motors yearly say that 12psi (ish) and 550rwhp is the limit for a daily driven pump gas gen3

at the end of the day, the suggestion of the bigger motor is a better suggestion, but if you have the kit and a window switch box, put it in. Worst thing that happens is you break a rod and trash your cam 😂

 

I was really only thinking about using it off the line. Like you were saying because it feels slower then stock off the line which i hear is normal.

And bigger forged motor is in the plans later on just looking to see what i can do with this one since it is what i have.

 

I like arthur's idea a lot long as your converter doesn't let it flash into boost at the same time. Out of the hole is good.