How Noisy is Your V6 on Hard Acceleration?

[ChibiBlackSheep]

Originally Posted by gringo

You mean a gentle farting sound while in 4cyl AFM mode? Thanks, but no thanks.

The extra stock resonator on the L99 exhaust did help with the 4cyl activation sound. I quickly tuned that out before going into my aftermarket exhaust, but it truly wasn't so bad.

Just like how the stock v6 system sounded pretty good. The loud ones never sounded nice to me. Never did go out of my way to put an exhaust on my 1LS.

[Foxfire15]

I like the sound my car makes, but I wouldn't describe it as excessively noisy. Honestly, it's probably louder IN the car than outside of it.


Definitely sounds better than the old 01 did though. That thing sounded like a damn lawnmower.

[redcoats1976]

mines stock.pretty quiet compared to my other cars.i run 89 in it as i just dont like the idea of putting in lawnmower fuel.

[Moto-Mojo]

Originally Posted by gringo

You mean a gentle farting sound while in 4cyl AFM mode? Thanks, but no thanks.

I always run premium and mine is not noisy at all except at idle particularly during a cold start.

I don't know how you could not use premium on this high reving engine. It performs so much better (drivability wise at least) with premium than using regular.

It wasn’t gentle. Those were at least full throttle V6 flatulents. Tuned ‘em out last fall.

[DvKillar]

My 6 has never tapped using 91-93. but the DI struggle is real! just hit 30k and should've canned the system a long time ago. I can feel the valves gumming up!

[redcoats1976]

odd.at 44k miles i have no problems.

[xstuntman]

91 octane is the highest available here and for an experiment I did try running 87 for a few months. The exhaust tips carboned up pretty good so it was pulling wayyy to much timing. I wish 93 were available.

And it does remind me of a family members old 308 GTS back in the day. Doubters can suck it and continue hugging those boat anchors.

[Iron Lung Jimmy]

Originally Posted by 152LTRockin

Like the title says how noisy is it on hard acceleration? Mine was moderately noisy, I wouldn't say it was knocking but sort of a lite diesel sound on hard acceleration using regular fuel. Using premium its much quieter almost silent but still different sounding. Anyone else notice this, seems to me this direct injected engine has a different sound to it compared to port fuel injected engines.

Since when is a V6 capable of hard acceleration?

[152LTRockin]

Originally Posted by PepeLePew

Have you thought about having a tuner add an 87 octane table to your tune with less timing. It wouldn't change your current tune when you want to run 93 but it will allow you to run 87 safely.

I'm hoping that's what is in there now but who knows. I'm positive what it was doing with regular fuel in it was accelerate-pull timing back and forth constantly as the weather got warmer. I believe it was switching between tables. The dealer service dept I'm dealing with is really good, the top service advisor knows these cars well. He told me right out untuned expect 18-21 mpg local and poor throttle response. That poor throttle response is the torque management that he says is way over done to get the cars out of warranty. Now show me another dealer that's that honest?

[152LTRockin]

Originally Posted by Iron Lung Jimmy

Since when is a V6 capable of hard acceleration?

huh? not another one.............

[SlingShot]

Originally Posted by 152LTRockin

I'm hoping that's what is in there now but who knows. I'm positive what it was doing with regular fuel in it was accelerate-pull timing back and forth constantly as the weather got warmer. I believe it was switching between tables. The dealer service dept I'm dealing with is really good, the top service advisor knows these cars well. He told me right out untuned expect 18-21 mpg local and poor throttle response. That poor throttle response is the torque management that he says is way over done to get the cars out of warranty. Now show me another dealer that's that honest?

That honest dealer can tell you if the car has a tune in about two seconds, with their techII. Ask them to check, and if car was bought there and is a CPO it doesn't have a tune.

[152LTRockin]

They said they can not, I gotta believe them OR they just don't know how. So far they have been good to deal with.

[Silveradoss573]

Originally Posted by SlingShot

That honest dealer can tell you if the car has a tune in about two seconds, with their techII. Ask them to check, and if car was bought there and is a CPO it doesn't have a tune.

Lol he already knows that the super freak has been tuned for premium fuel, a high stall converter and gears. Still waiting for pictures btw

[JerTM]

Originally Posted by SlingShot

That honest dealer can tell you if the car has a tune in about two seconds, with their techII. Ask them to check, and if car was bought there and is a CPO it doesn't have a tune.

Yes we can tell fairly quickly it has a tune other than a factory, however we cannot tell what has been changed.