LS3_08

hi guys<< i wanna ask u any ideas how many hp will be added to my 08 c6 when i tune it since its bolts on ???

thesubfloor

It's really hard to guess since there are a lot of factors involved - what kind of spark timing you plan on running, what kind of gas that's available, whether or not you'll be installing a wideband O2 sensor etc.

LS3_08

i've already installed the O2 sensors << i just wanna a rough estimate of the how many hp will be added

0Brian@RPT

Depends on the boltons. When I tuned my 08, I gained 15rwhp/18 ft-lbs on the dyno. The car only has a CAI, which doesn't show anything on a dyno.

LS3_08

the boltson installed is : kooks headers 3/4 ,,,, Borla cat back touring ,,,, varraram air intake ,, thats what i installed on the car

0Brian@RPT

I would say in the 420-430 rwhp range with a M6 tranmsission.

thesubfloor

You're probably talking about the O2 sensors that already come with the car from the factory, not a wideband O2 sensor which is needed for accurate WOT fueling.

As I stated earlier, the bolt-ons themselves are only a small part of the overall equation and a lot of how much added HP you’ll see is dependent on the tune itself.

As an example, my car runs 11.014 in the quarter mile but on Wednesday nights I’m not allowed to run any quicker than 11.5 seconds. In order to accomplish this, I simply went into my tune and altered the AFR, spark timing and shift points. As a result, through tuning alone I was able to slow my car down by a ½ second in the quarter mile and by my (very) rough estimate, probably reduce the car’s HP by around 50-75 all without turning a single wrench or screwdriver.

This probably still isn’t the answer you’re looking for but I figured it wouldn’t hurt to at least throw it out there.

Christopher