Anyone making 300 hp with a 4.8 not using any power adders.

 

what did you pull today????

 

I'm 271 to the wheels running heavy wheels, through a 3400 stall to a 3.73 gear. I figure if that was stock I would be around 280 to 290. That's also on a stock shortblock. A nice cam and mild heads, I figure I could easily hit the 350 neighborhood.

 

Those are awesome #'s Greg. Mind listing your mods. I don't think your site has been updated since 02 when you still had the HPP3 for tuning.
What do you do in the 1/4? I bet you are in the 14's with those numbers.
I was only able to get a 15.0 @ 90mph time slip with my wife's ext cab 4.8 but I doubt I am close to 271 rwhp.

 

378 on the gas in 2nd gear. I have 20% more nitrous I can use so I know I could make 400 on the gas.

257 on motor in 2nd gear. My lack of a good set of long tubes is killing me.
That and the big wheels and massive brake rotors.

Don't get me wrong I'm not unhappy with the results.
I just know it can do more.

 

I'm hoping for 300 as well. I have all in my sig and a 2k vette cam going in before I get retuned/dyno'd with Nelson. Cross your fingers I guess.

 

290 on motor, almost!

 

with what mods?

 

That kicks ***!

 

285 on motor, pulling on the dyno in 2nd gear
but they where saying the Dyno was reading low...