I know it seems childish but could anyone give me a rough estimate of my hp at the crank? Im at least 4 hours from a dyno or track, so that's not something I'm interested in or plan on doing. 2006 Silverado ss, 6.0 lq9, Radix with 3.0 pulley (7.5 psi max), afe cold air intake, FIC 80lb injectors, American racing long tubes, high flow cats, cutouts/ flowmaster 40s, Msd wires, Tick stage 1 blower cam 223/235 | .615"/.605" | LSA116+5, tuned remotely by Nelson performance via HPTuners

 

.585.

 

or 605

 

Really that high? I was guessing like 520. Seeing as it sometimes struggles to do second gear burnouts kinda pisses me off haha.

 

I figured 325 stock, (?) add 100 headers and cam, and add 50% with 7.5 psi. That is 637.5. Then I subtracted an arbitrary amount for the blower's inefficiency.

What's the approximate mph in your secret backroads 1/4 mile test track?

 

Radix? As in mp 112?

 

There's 3 feet of snow in front of the shed I keep the truck in front of, ugh, Canada. I won't have it out on the road for at least a month yet. But I'll try and keep up with this thread when I get it out. And it's the newer TVS 1900

 

I'm with Mike. I would guess mid-high 500s easy. Those blowers are pretty efficient on a low boost setup.

 

Your easily making 550 with 7lbs of boost.

 

Thanks for all the responses. Now at least a have a better idea of what to tell people when they ask me. Not sure what the next step will be but definitely needs more power.