First post, I recently added a S&B air intake, Borla Pro XS exhaust and Dyno my truck it's RWHP is 318. My next add on is in the air. Tsp Headers or Cam what will give me more power?
Big car go vroomroorancher said:Chevy's specs say the engine produces 355 HP @ 5600 RPM.
What am I missing here, and why is more power necessary? I understand better performance, as I have a tune, but more power?
Yes I been told that, I was going to add headers only but I seen and was told get both and get it returned again. We shall see thanks.n8dh said:Depending on the cam you probably want to do cam and headers at the same time, as the new cam (depending on how aggressive it is) will be pushing more air. You'll need a tune to tie it all together.
Gotta pay to play, OP.
Watroorancher said:Chevy's specs say the engine produces 355 HP @ 5600 RPM.
What am I missing here, and why is more power necessary? I understand better performance, as I have a tune, but more power?
how is he getting 398 hp and 427 tq out of "stock 5.3"MIKE91B said:Watch this. Richard Holdener is by far the best source of GM power on YouTube.
got it, thanks. do you know what altitude they are rated at? is it the same across all manufacturers?MIKE91B said:Premium fuel and all the ignition advance it can take. He also was under near perfect conditions in an air conditioned dyno room. Remember when GM stamps a power rating that engine needs to do that at any altitude and at the highest temps. Also keep in mind the amount of weight a truck has. That effects how much ignition timing you can throw at the engine on low octane fuel. Richard just shows you the max on an engine dyno. My guess is he was running every trick in the book to show just how much better the LT engines are.
I guess that is also with premium and ignition advance?MIKE91B said:Texas speed had an L83 on the dyno that was also stock. It made 410hp and 430ldft of torque. They show the graph of that engine and compare it to the cams they offer.