NPP, M6 - any of you guys sometimes get a loud "pop" sound on a high rpm 1-2 shift?

SS 1LE · 01-01-2017, 01:39 PM

As the title states. I noticed sometimes (not all the time), on a high rpm 1-2 shift I can get a pop, crack, almost backfire gunshot like sound out of the exhaust. Not sure why I only get it at times, may depand on how exactly I shift? Was curious if any other M6 guys with the NPP have noticed this as well. Surprised the hell out of me first time I heard it lol...

Ventmaster · 01-01-2017, 01:49 PM

It hasn't happened to me (yet), even though I"ve pushed the RPM to where I could feel the acceleration begin to decline.

But with my last car-2010 Camaro V6, after I supercharged it I was a little too late with the up shift and hit the rev limiter- thought I'd done something really bad (expen$ive!). It made a helluva crack/pop/backfire sound, LOL.

But she stayed in one piece. Make sure you're shifting soon enuff- it gets easy to get lost in the sensation!

SS 1LE · 01-01-2017, 02:02 PM

Quote:

Originally Posted by Ventmaster

It hasn't happened to me (yet), even though I"ve pushed the RPM to where I could feel the acceleration begin to decline.

But with my last car-2010 Camaro V6, after I supercharged it I was a little too late with the up shift and hit the rev limiter- thought I'd done something really bad (expen$ive!). It made a helluva crack/pop/backfire sound, LOL.

But she stayed in one piece. Make sure you're shifting soon enuff- it gets easy to get lost in the sensation!

It was at about 5500 rpm when I heard it, so not close to the rev limiter.

bybcous · 01-01-2017, 02:45 PM

I hear it all the time on my car and freinds car with m6. Seems normal, i like it.

keon718nyc · 01-01-2017, 02:47 PM

Same thing when i am paddle shifting my A8. Love that dam sound!!!

SS 1LE · 01-01-2017, 02:58 PM

Quote:

Originally Posted by bybcous

I hear it all the time on my car and freinds car with m6. Seems normal, i like it.

Does yours only do it at higher rpms, and not all the time?

When mine did it (radio was off), it was a pretty loud "pop" when I shifted to second. Not sure if I like it as it reminds me of a backfire lol.

bybcous · 01-01-2017, 03:34 PM

I remember gm engineers saying the backfire was on purpose because of the npp during the find new roads tour before the car was released. This sounds crazy but I love it when my car backfires. Pretty close to sex to me

AdvanSuper · 01-01-2017, 03:58 PM

Quote:

Originally Posted by SS 1LE

Does yours only do it at higher rpms, and not all the time?

When mine did it (radio was off), it was a pretty loud "pop" when I shifted to second. Not sure if I like it as it reminds me of a backfire lol.

It's completely normal and you can put the car in other modes, but tell the exhaust to stay in stealth, tour or sport mode to mitigate it. Just use the MyLink interface under Options/Settings -> Driving Modes

SS 1LE · 01-01-2017, 04:45 PM

Quote:

Originally Posted by bybcous

I remember gm engineers saying the backfire was on purpose because of the npp during the find new roads tour before the car was released. This sounds crazy but I love it when my car backfires. Pretty close to sex to me

Thought I read similar, but for the autos?

Thing is it doesn't always do it, high rpm 1-2 shift if I do it say five times, maybe it will do it once or twice.

It must have a small window of circumstances that must be met for it to happen is my guess.

ron scubadiver · 01-01-2017, 06:17 PM

The pop sound is a feature, not a bug.

Red Jewel RS · 01-01-2017, 06:22 PM

Normal mine does it. Just from 1-2. If you watch YouTube vid's you will hear it. First time it scared me but then I remembered I read and heard it before.

SS 1LE · 01-01-2017, 06:39 PM

Quote:

Originally Posted by ron scubadiver

The pop sound is a feature, not a bug.

It was much louder than I expected, sounded like a gun shot lol...and I've never had a car that does this before. Not sure how I feel about, no matter how seldom it does it.

slick3 · 01-01-2017, 11:11 PM

it sounds bad ass. I love the noise.

SS 1LE · 01-02-2017, 09:51 AM

Quote:

Originally Posted by slick3

it sounds bad ass. I love the noise.

Hey man, sent you a PM.

01-01-2017, 01:39 PM	#1
SS 1LE マスタング = 遅い Drives: 2017 Chevrolet Camaro SS 1LE Join Date: Aug 2015 Location: Florida Posts: 7,061	NPP, M6 - any of you guys sometimes get a loud "pop" sound on a high rpm 1-2 shift? As the title states. I noticed sometimes (not all the time), on a high rpm 1-2 shift I can get a pop, crack, almost backfire gunshot like sound out of the exhaust. Not sure why I only get it at times, may depand on how exactly I shift? Was curious if any other M6 guys with the NPP have noticed this as well. Surprised the hell out of me first time I heard it lol... __________________ Last edited by SS 1LE; 01-01-2017 at 06:46 PM.

01-01-2017, 02:45 PM	#4
bybcous Drives: 2016 Hyper Blue 1SS Join Date: Jul 2015 Location: hampton roads Posts: 2,763	I hear it all the time on my car and freinds car with m6. Seems normal, i like it. __________________ 1ss/Auto-Hyper Blue acs carbon flash spoiler, bmr springs, gm clear tails. Texas speed cam, 223/227 .635/.635 116 LSA, Kooks Long Tube Headers with green cats, MSD Atomic Air Force Intake, CAI Cold Air Intake, QTP cutouts. 503 hp Best so far 11.5 at 123 with a 1.83 60ft. BMR lower and upper trailing arms and upper control arms,E85 DELIVERED 12/29/15 http://youtube.com/bybcous " no talking only racing on my youtube"

01-01-2017, 03:34 PM	#7
bybcous Drives: 2016 Hyper Blue 1SS Join Date: Jul 2015 Location: hampton roads Posts: 2,763	I remember gm engineers saying the backfire was on purpose because of the npp during the find new roads tour before the car was released. This sounds crazy but I love it when my car backfires. Pretty close to sex to me __________________ 1ss/Auto-Hyper Blue acs carbon flash spoiler, bmr springs, gm clear tails. Texas speed cam, 223/227 .635/.635 116 LSA, Kooks Long Tube Headers with green cats, MSD Atomic Air Force Intake, CAI Cold Air Intake, QTP cutouts. 503 hp Best so far 11.5 at 123 with a 1.83 60ft. BMR lower and upper trailing arms and upper control arms,E85 DELIVERED 12/29/15 http://youtube.com/bybcous " no talking only racing on my youtube"

01-01-2017, 01:49 PM	#2
Ventmaster Drives: 2017 1SS 6spd Join Date: Jan 2011 Location: Utah Posts: 2,869	It hasn't happened to me (yet), even though I"ve pushed the RPM to where I could feel the acceleration begin to decline. But with my last car-2010 Camaro V6, after I supercharged it I was a little too late with the up shift and hit the rev limiter- thought I'd done something really bad (expen$ive!). It made a helluva crack/pop/backfire sound, LOL. But she stayed in one piece. Make sure you're shifting soon enuff- it gets easy to get lost in the sensation!

01-01-2017, 02:47 PM	#5
keon718nyc Drives: Challenger SP Shaker/Arcadia Denali Join Date: Jan 2016 Location: New York City Posts: 1,928	Same thing when i am paddle shifting my A8. Love that dam sound!!!

01-01-2017, 06:17 PM	#10
ron scubadiver Drives: 2017 2SS Hyper Blue Join Date: Dec 2016 Location: Houston TX Posts: 550	The pop sound is a feature, not a bug.

01-01-2017, 06:22 PM	#11
Red Jewel RS Drives: 2010 Camaro 2SS Join Date: Apr 2010 Location: Billings, MT Posts: 891 View My Garage	Normal mine does it. Just from 1-2. If you watch YouTube vid's you will hear it. First time it scared me but then I remembered I read and heard it before.

01-01-2017, 11:11 PM	#13
slick3 Drives: Garnet Red - 20 ZLE Join Date: Jun 2016 Location: Southern California Posts: 1,010	it sounds bad ass. I love the noise.

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