blkgagt94

iTrader: (3)

My ls6 I have long tubes gutted cats x pipe to basically slp2 mufflers sounds good but my lower torque an power rang is up around 3G. Drove a stock v today an it felt like it had more torque an better take off speed an under 3G. What am i missing why does the stock car feel faster is it cause its quite or it have more back pressure? I noticed in my car I went from straight pipe to bullet mufflers it felt more powerful!!

VY_Cruiser

Did it have the same diff ratio?

DACTARI

iTrader: (1)

You need a tune. Car is breathing so much better the AF ratio is out of whack. You are probably running too lean. A tune will get more fuel into the cylinders and get you going.

blkgagt94

iTrader: (3)

Have a tune tho an think both gears are same stock

DACTARI

iTrader: (1)

We want to help, buddy, but you're going to have to write more clearly. Take some time and write it out.

etcts-v

hahaha

Sweetwilliebrownjr

Less back pressure generally gives less low end power, and more high end power. not sure if you deal with bikes, but it's even more exaggerated on them. You can buy exhausts with removable baffles so you can add or take them away to adjust the torque range.

blkgagt94

iTrader: (3)

All I'm saying is the all stock car felt more torquer an mine feels less at the low end range since I have full exhaust no cats an bullet mufflers an bigger intake

DACTARI

iTrader: (1)

Get it tuned. You are probably running lean.

blkgagt94

iTrader: (3)

Tuner guy said its around 12.5 13.1 air fuel ratio

itsslow98

iTrader: (18)

Even untuned my car with long tubes felt WAY better all around over stock manifolds.

wcryan

iTrader: (2)

^ yeah, me too

ryridesmotox

My 04 V is bone stock and as soon as I bolted on the Long tubes, racing cats, and mufflers I felt the difference. And I haven't even tuned it yet. Try turning off the traction control maybe I dunno. What intake are you running?

by the way I have a bone stock car besides the 1&3/4 inch headers, racing cats, x-pipe, and mufflers from stainless works.

adanieljohnson1

iTrader: (1)

Stop putting 87 octane in her.... :-)

jeepster666

hahahaha +1

blkgagt94

iTrader: (3)

Ported fast 92 an ls2 tb an I use 91+

Dmax/04V

Run 93. If you live out west you're SOL on that one. My bike hated me when I put 91 in it while I lived out west.

DACTARI

iTrader: (1)

All those mods, so I'm guessing you're cammed? If so, maybe your cam isn't playing well with the new exhaust breathing? Maybe you need less exhaust duration or something? What are your cam specs?

DrSpeed

iTrader: (4)

Geezus...use punctuation man.

I know you know how to use it - I saw a period when you typed out your A/F ratio.

blkgagt94

iTrader: (3)

No cam here yet! thinking of running high flow cats