Hesitation under 3k rpm / throttle response? - Page 2

Callaway SC630 · 03-06-2021, 08:05 AM

I'd flip the air cleaner lid over.

s346k · 03-06-2021, 08:33 AM

sounds like a tune issue. my bolt on car has no hesitation anywhere.

avalonandl · 03-06-2021, 11:14 AM

All this started after your tune.....

CHASLT1 · 03-06-2021, 02:31 PM

Quote:

Originally Posted by Callaway SC630

I'd flip the air cleaner lid over.

I did that to my green lean machine in the 1980's...

jcaligood · 03-25-2021, 02:47 PM

Bumping this thread because I just read something about the 1LE.

Apparently, the 1LE has extra torque management (less throttle response) during low rpm? I read this is to help easing into the throttle when coming out of a turn or shifting.

Can anyone confirm this is my issue? Or would a tune get rid of this?

rayhawk · 03-25-2021, 03:50 PM

I have the same issue, it is actually closest to 2000-2200 RPM for me. My car did it when it was all stock, and still does it with a ported throttle body. The throttle body doesn't seem like it made much difference at that engine speed.

The biggest issue is in traffic, where you tend to keep going from lets say 1500-2500 rpm in second gear, I'm constantly trying to drive around the flat spot. If I'm able to accelerate a bit faster, I go right past it without a problem. It is most noticeable in lower gears, but I can still feel it in 3rd or 4th gears sometimes. By the time you get to 5th gear, you can't feel the flat spot anymore.

I think it's just a poor factory tune. My car is a 2016 SS, M6.

jcaligood · 03-25-2021, 07:46 PM

Quote:

Originally Posted by rayhawk

I have the same issue, it is actually closest to 2000-2200 RPM for me. My car did it when it was all stock, and still does it with a ported throttle body. The throttle body doesn't seem like it made much difference at that engine speed.

The biggest issue is in traffic, where you tend to keep going from lets say 1500-2500 rpm in second gear, I'm constantly trying to drive around the flat spot. If I'm able to accelerate a bit faster, I go right past it without a problem. It is most noticeable in lower gears, but I can still feel it in 3rd or 4th gears sometimes. By the time you get to 5th gear, you can't feel the flat spot anymore.

I think it's just a poor factory tune. My car is a 2016 SS, M6.

Exactly!
This sounds like the exact issue im having.
I have a tune though. So maybe something with the 1LE?

ssmike · 03-26-2021, 07:22 AM

It's not just a 1LE thing. I have a '16 SS and have the same problem. Mine has done it since stock and now it's tuned with a Roto-Fab and Pray ported TB/IM. It's worse than ever now. On top of the hesitation I get very non linear throttle response up to 3K and then it takes off like a bullet. I can't even use rev match because it bogs out when hitting the gas after downshifting. I'm going to try another tune from a different tuner to see if they can smooth it out.

jcaligood · 03-26-2021, 09:52 AM

Quote:

Originally Posted by ssmike

It's not just a 1LE thing. I have a '16 SS and have the same problem. Mine has done it since stock and now it's tuned with a Roto-Fab and Pray ported TB/IM. It's worse than ever now. On top of the hesitation I get very non linear throttle response up to 3K and then it takes off like a bullet. I can't even use rev match because it bogs out when hitting the gas after downshifting. I'm going to try another tune from a different tuner to see if they can smooth it out.

gotta be someone out there that has the solution for this...

m6-lt1 · 03-26-2021, 10:03 AM

Are you driving it with the throttle in track mode? If so it’s doing what it’s designed to do. It will feel weak at lower rpm and then take off. Put it in sport mode and it will feel way punchier at low rpm.

ssmike · 03-26-2021, 10:23 AM

Quote:

Originally Posted by m6-lt1

Are you driving it with the throttle in track mode? If so it’s doing what it’s designed to do. It will feel weak at lower rpm and then take off. Put it in sport mode and it will feel way punchier at low rpm.

Sport or touring mode. Track mode really softens the throttle for track use.

PnCRedJwl2SS · 03-26-2021, 10:56 AM

Could be tune-related. Mine is stock, no mods or tune. I use the Vitesse Throttle Controller on setting SP5 and experience almost no lag anymore.

Might be worth a try...

ctrlz · 03-26-2021, 11:09 AM

Quote:

Originally Posted by PnCRedJwl2SS

Could be tune-related...

Nice thread with no A/F data.
Sounds like it's lean under load.

Wobble Goat · 03-26-2021, 03:21 PM

I'm not going to add any details because it would just be what has been mentioned before, but I have a stock 2017 SS Manual that I drive in Sport with rev match on (mostly) and I have noticed the same throttle response / lack of power issues as well when below 3k rpm.

My speed density tuned GTO is 1000x better in that regard. Night and day difference in throttle response.

03-06-2021, 08:05 AM	#15
Callaway SC630 Drives: 2020 Callaway Camaro SC630 Join Date: Feb 2020 Location: Pennsylvania Posts: 319	I'd flip the air cleaner lid over. __________________ 2020 Callaway Camaro SC630 - MN6 1SS Satin Steel Gray 2019 Callaway Corvette SC757 - MN7 1LZ Elkhart Lake Blue

03-06-2021, 08:33 AM	#16
s346k Drives: like an old lady Join Date: Jun 2012 Location: indiana Posts: 2,395	sounds like a tune issue. my bolt on car has no hesitation anywhere. __________________ 2016+ camaro: everyone’s first car

03-06-2021, 11:14 AM	#17
avalonandl Drives: 2019 ZL-1 Join Date: Feb 2009 Location: Troy, MI & Naples, FL Posts: 2,019	All this started after your tune..... __________________ 2019 ZL-1 Acquired 4/23/21 at 6300 miles. Riverside Blue, A10, PDR. Traded in 2017 2SS with 6M and 32k miles. Continental Extreme Contact Sports. Now has 10,000 miles... 2012 Yukon XL Denali w/ 6.2 AWD

03-25-2021, 03:50 PM	#20
rayhawk Drives: Camaro SS Join Date: Aug 2008 Location: Miami Posts: 1,060 View My Garage	I have the same issue, it is actually closest to 2000-2200 RPM for me. My car did it when it was all stock, and still does it with a ported throttle body. The throttle body doesn't seem like it made much difference at that engine speed. The biggest issue is in traffic, where you tend to keep going from lets say 1500-2500 rpm in second gear, I'm constantly trying to drive around the flat spot. If I'm able to accelerate a bit faster, I go right past it without a problem. It is most noticeable in lower gears, but I can still feel it in 3rd or 4th gears sometimes. By the time you get to 5th gear, you can't feel the flat spot anymore. I think it's just a poor factory tune. My car is a 2016 SS, M6. __________________

03-26-2021, 10:56 AM	#26
PnCRedJwl2SS Howdy! Pete here... Drives: 2017 50th Anniv 2SS, A8, NPP, MRC Join Date: Jul 2009 Location: Schertz, TX Posts: 1,379 View My Garage	Could be tune-related. Mine is stock, no mods or tune. I use the Vitesse Throttle Controller on setting SP5 and experience almost no lag anymore. Might be worth a try... __________________ PnCRedJwl2SS 2017 50th Anniversary Edition, A8, NPP, MRC, w/Sunroof and Glow-tie! ___________________________________________ ___________________________________________ Ordered from GM Delivered to dealership and home 9-16-16 This car is a beast!

03-25-2021, 02:47 PM	#19
jcaligood Drives: '18 SS 1LE Join Date: Jul 2016 Location: Jax, FL Posts: 405	Bumping this thread because I just read something about the 1LE. Apparently, the 1LE has extra torque management (less throttle response) during low rpm? I read this is to help easing into the throttle when coming out of a turn or shifting. Can anyone confirm this is my issue? Or would a tune get rid of this?

03-26-2021, 07:22 AM	#22
ssmike BL1ZZRD Drives: '16 Camaro 2SS, '20 Equinox Redline Join Date: Jul 2009 Location: Buffalo, NY Posts: 7,840	It's not just a 1LE thing. I have a '16 SS and have the same problem. Mine has done it since stock and now it's tuned with a Roto-Fab and Pray ported TB/IM. It's worse than ever now. On top of the hesitation I get very non linear throttle response up to 3K and then it takes off like a bullet. I can't even use rev match because it bogs out when hitting the gas after downshifting. I'm going to try another tune from a different tuner to see if they can smooth it out.

03-26-2021, 10:03 AM	#24
m6-lt1 Drives: 2023 Chevrolet Camaro 2SS 1LE Join Date: Jan 2020 Location: Pennsylvania Posts: 1,033	Are you driving it with the throttle in track mode? If so it’s doing what it’s designed to do. It will feel weak at lower rpm and then take off. Put it in sport mode and it will feel way punchier at low rpm.

03-26-2021, 03:21 PM	#28
Wobble Goat Drives: Camaro 1SS Join Date: Jun 2020 Location: PA Posts: 82	I'm not going to add any details because it would just be what has been mentioned before, but I have a stock 2017 SS Manual that I drive in Sport with rev match on (mostly) and I have noticed the same throttle response / lack of power issues as well when below 3k rpm. My speed density tuned GTO is 1000x better in that regard. Night and day difference in throttle response.

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