because you specifically comment on every post I make inputting unnecessary commentary not even geared towards you as we all can see

 

I’ve also seen stock Denalis run 17 so what’s your point stating internet times

 

Work on your 60ft time. Every tenth you can save on your 60 ft. Will knock off two tenths off your ET. Launch technique, tires.

 

Thanks for proving my point.

 

unfortunately it’s what everyone suspected all along. My trucks not making any power. Made 245 to the tire…probably a boost leak or a ton of timing taken out

 

first off: bad on me for not realizing until now that the first post here wasn't actually a question - it was simply informing us that your 1/4mi times have peaked.

the tone i inferred is that you weren't satisfied with those results, which (as mentioned above) are actually pretty good for a heavy stock truck running a little boost. if that inference was inaccurate, then ignore the topics i highlighted for contemplation and i'll move along. if you are, however, looking to trap some better times, then anyone who's been down that path would suggest looking into those same focus areas.

i certainly wouldn't call a 17sec 1/4 any sort of benchmark for a 6.0, AWD Denali either... shoot - my 1st ever time at the strip in my Sierra with a stock 5.3, too much air in my 32" ATs, and having to double-clutch 3rd b/c of crappy hydro lines: i still pulled a 15-something @ almost 90. rough math puts your pulley at 9~10psi on a 6.0 and conservatively good for an extra 150 crank (15-20hp/psi)... so take them 500ish ponies and eat a solid 20% in AWD drivetrain loss for 400whp. now plug 400whp into any 1/4mi calculator for a 5900lb truck, and it'll say you could expect 2.1 60' & 14.3s @ 100mph... which you ain't too far from.

PatG's a great tuner from everything i've seen/heard over the last decade or so, so i doubt it'll be so 'safe' as to castrate the fun out of it. then comes your tires: compound, age, and pressure make all the difference between a hook & a smoke show off the line. dialing them in with the perfect amount of throttle will whittle your 60' times down. hope for a low DA that day (because i didn't even get into how temperature & atmospheric pressure will affect your performance), and let her eat!

as for pushing beyond that glass ceiling, a stock truck's got a million easy ways to start knocking 10ths off: easiest are weight reduction, headers (to let the top-end air actually escape... which will also reduce your intake pressure/temperatures for the same airflow), lower gears (providing more mechanical advantage to accelerate = effectively more whp), cam + torque converter (should also be factored together with the differential gear ratio selection). there's plenty to read around here on specifics for those topics, but my point is simply to provide food for thought... and it comes from taking my PD blower car from a mid-13 stock run to its current potential for sub-10s (if i ever felt like throwing cash at some drag tires).

 

Why not do a ghost boost cam, headers and heads? You can make it real quiet like so that your sleeper desire does not go away.

 

i just wanted a little extra power to play around with otw to work, nothing too serious.

 

Headers are easy imo, a Saturday afternoon job that will easily gain you 25 hp

 

this ain’t my first rodeo brother. This is my 8th supercharged vehicle. I’ve been modding vehicles since the early 2000’s. I’m at a stage in my life where I don’t need all the extremities, just a little extra power that a supercharger on a stock vehicle can bring. I could easily go all out with heads/cam, built engine, full exhaust, converter, built trans, etc but I’m content with just a blower install. It’s still a work in progress though, gotta work on the fuel system and cooling system. My main thing is getting info from other members on what they think my truck should be putting to the wheels and 1/4 mile times, based on similar setups that they have so I can determine if mine is up to par.