07darknight

I have an 07silverado with 4.8l new body style, and I'm wanting it to run mid to high 13's here's what I have done so far cold air intake, flowmaster exhaust, vet servo, diablo programer, and a 100 shot of nitrous any advice is much appreciated thanks

Sc00by

Throw some boost to it!!!! You won't need the nitrous anymore to reach 13's. Toss the diablo programer and get a custom tune from one of the sponsors to the right.

Everyone that currently has boost on their trucks now says they wish they would have just thrown boost to begin with instead of throwing money at other mods. Im currently looking to throw boost at mine......but money is tight!

07darknight

yea same here id love to boost it if i had the money im thinking about throwing some headers on it. whats wrong with diablo tunner. and if i get rid of that which one do i go with

bmd_CL

iTrader: (2)

the problem with handheld tuners is there is very little you can actually do with it. a custom tune, either mail order or live from wheatley, blackbear or nelson on the right side of the screen would be the best. If you are planning on boosting it down the road i wouldnt waste my money on headers. A good live tune, posi and gears, a circle d stall and a 100 shot of nitrous should net you a 13 in the quarter

mongooseboy000

headers, long tubes, a high stall converter, cam and a tune. Look upthe user Rhino 79. He used to have a NNBS 4.8 crew cab and he was getting some good numbers. IF you drive it daily like me id stick with a 3200 circle D. just the converter knocked .6 off my times i just got my blackbear tune so we shall wee what i run now.

bmd_CL

iTrader: (2)

or a tune and a 200 shot lol. that should get you a 13 and have less than 1000 dollars invested haha

07darknight

is a live tune a dyno tune?
thanks for all the help guys i appreciate it.

im also curious about headers if i get long tube headers will i need to do anything with the o2 sensors, if so what and how. what kind of horse power and torque can i expect to get from them

bmd_CL

iTrader: (2)

it depends...some live tunes are on the dyno, others are on the street but with your tuner there hooked up to the truck. idk an exact horsepower amount but you will be able to feel a difference. and with the o2 sensors, if you get longtubes and an ory you will have to delete the rear o2s in the tune, the front ones go in the collectors

2007chevy5.3l

iTrader: (21)

My friends 08 5.3 extended cab made 370whp and ran a 13.6 with just a 100shot.
I went 13.9 with headers/tune and 60shot

07darknight

Thanks for all the help guys I think I'll go with headers a converter and a tune