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10-05-2019, 10:10 PM
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#1 |
 Drives: 2019 2SS 1LE Join Date: Aug 2019
Location: CT
Posts: 112
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LT1 Off-idle Stumble
Could anyone with a manual SS help me test this to determine whether my car is unique in this stumble?
Shift to second gear, let speed drop to idle. Hit gas quickly to quarter/half throttle. Under these conditions, my car has a pretty significant stumble - almost like a flameout. Not sure if this is unique to my car or whether all LT1s behave this way, as my engine seems to be pretty healthy otherwise. Thank you all! |
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10-05-2019, 10:20 PM
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#2 |
Drives: 2023 Camaro ZL1 Join Date: Sep 2019
Location: North Carolina
Posts: 126
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I can check this in the AM. I’ve had a beer or two tonight already
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2023 Camaro ZL1 - Rapid Blue, M6
3800 - 6/12/23 | 4800 - 6/26/23 | 5000 - 6/30/23 | 6000 - 6/30/23 SOLD - 2017 Camaro 2SS 50th Anniversary - H50, M6, NPP, MRC |
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10-05-2019, 11:26 PM
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#3 |
 
Drives: '16 Red Hot 2SS M6 NPP Join Date: Apr 2016
Location: The Beach, NC
Posts: 603
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Can confirm.. on the beer part..
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 '16 2SS, M6, Borla Atak |
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10-05-2019, 11:34 PM
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#4 |
      
Drives: 22' Porsche PDK GT4 Join Date: Mar 2018
Location: Bay Area
Posts: 2,027
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I think it is common. I never noticed it when my car was stock, but after putting my Corsa Cat-back exhaust, I notice it more times than not.
I asked this question in other threads and it seems to be a common thing. Maybe it is the stock cam profile, cause that is what it sounds like to be, like an aggressive cam (like the sound that Eleanor gives off from "Gone in 60 Seconds")
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Current:
22' Porsche PDK GT4 (MCS 2-way remote dampers) Previous: 18' NFG 2SS 1LE (ZL1 1LE solid rear cradle bushings & Corsa Exhaust) 16' F80 M3 (Ohlin R/T Coilovers) 13' Audi TTRS (APR Stage 1, MSS Springs) 09' C6 Z06 08' E90 M3 06' 335i (KW V2 Coilovers) 03' C5 Z06 |
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10-06-2019, 12:28 AM
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#5 |
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Drives: 2016 SS Convertible Join Date: Sep 2016
Location: California
Posts: 1,108
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Ya that’s not a normal driving condition
There are spots in the off idle map that can create a stumble - but you don’t see them during actual normal driving And I feel you on the beer. Just one. But a tasty strong one. Space dust. |
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10-06-2019, 12:40 AM
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#6 | |
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Drives: 22' Porsche PDK GT4 Join Date: Mar 2018
Location: Bay Area
Posts: 2,027
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Quote:
The condition you are describing sounds like an issue, as I do not have that and haven't heard of that before.
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Current:
22' Porsche PDK GT4 (MCS 2-way remote dampers) Previous: 18' NFG 2SS 1LE (ZL1 1LE solid rear cradle bushings & Corsa Exhaust) 16' F80 M3 (Ohlin R/T Coilovers) 13' Audi TTRS (APR Stage 1, MSS Springs) 09' C6 Z06 08' E90 M3 06' 335i (KW V2 Coilovers) 03' C5 Z06 |
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10-06-2019, 12:46 AM
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#7 |
   
Drives: 2017 Camaro ZL1 Coupe Join Date: May 2016
Location: Georgia
Posts: 5,869
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Yep my 2016 SS with the 6 speed had it too! Haven’t noticed it in my ZL1 yet!
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ZL1 Coupe, PDR, Exposed carbon fiber hood insert, My Link with Nav, M6 6 speed and Silver Ice Metallic. Mods done: ceramic window tint, GM Accessories Camaro floor mats and Roto-Fab CAI.
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10-07-2019, 07:50 AM
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#8 |
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Drives: 2019 2SS 1LE Join Date: Aug 2019
Location: CT
Posts: 112
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Hm - I'm hearing some mixed results, but it seems like I may not be the only one to have this issue. It's been getting a little better with some driving (long term fuel adjustments?), but I can still get it to happen consistently if I give it a boot full just off idle.
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