03-05-2021, 07:48 AM | #1 |
Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,578
|
Causes for choppy WOT
So I’ve had my boosted setup for a year. Only put on maybe 1000 miles. I’ve only been able to do WOT pull once in awhile. Took the car out last week, and of course I went balls out and ramped it out to 7k rpms. When I hit 5500-7000rpms, the car was kind of breaking up/puttering.
Just curious to see what could be the cause of that. AFR/ fuel pressure looked good based on a quick 1 second look.
__________________
2014 SS 1LE Money Pit/ Forged 402
CAM 22X/24X, .619/.617, 113 LSA/ LS9 Heads FIC 1200cc/DSX Aux Pump//McLeod RXT Clutch 730whp: 630Trq |
03-05-2021, 09:26 AM | #2 |
Donkey Dick Cam Camaro
Drives: 2010 2SS/RS LS3 M6 Join Date: Oct 2009
Location: Los Angeles, CA
Posts: 2,000
|
without knowing the setup, running out of gas or weak valve springs would be my guess
Sent from my SM-G975U using Tapatalk
__________________
Bone Stock |
03-05-2021, 09:33 AM | #3 | |
Drives: 2015 zl1 m6 Join Date: Jan 2020
Location: Alaska
Posts: 702
|
Quote:
If you have a scanner , you can run a data log and see what cylinder is. Miss firing up there . I ran into this on my truck after installing my ported heads . Ended up being a coil pack . Easy test for the coil pack is move it from one cylinder to the other and see if that cylinder misfires if so there’s your answer.. It didn’t end there tho , I have hpt so my scanner showed me what cylinder but my injector duty cycle was at 114% at wot fuel pump was also on its way out . I was running meth at the time and so the afr wasn’t showing I was leaning out too much .. had to disconnect the meth so I could see what was really going on .. Had to upgrade my injectors and replace my fuel pump . Retune and everything is running fine now .. Also it could be a ground but that would show up in the scanner , like you Tb closing early at wot Ground , spark , or fuel .. cane be tune cause you stated your car was running fine .. could be easy as cloggged injector or bad coil pack . |
|
03-05-2021, 10:28 AM | #4 |
Drives: 2014 SIM 2SS Join Date: Sep 2015
Location: Charlotte, NC
Posts: 925
|
Logs would be great to see.
How old is the fuel? Bad coil/plug/wire? |
03-05-2021, 10:38 AM | #5 | ||
Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,578
|
Quote:
LS7 Lifters|BTR Springs|Speed Engineering LTs|Muffler Mod|ECS 1500|DSX Aux Pump|DSX Flex Fuel Sensor|FIC 127#|ATI Balancer|DashLogic| McLeod RXT|BMR 1.4 Springs|MightyMouse Wild|AEM WideBand|AEM BoostGauge|ZL1Addons Splitter|VA Sideskirts|POWER : 737whp/635trq Quote:
Everything on my setup was brand new. Unfortunately I have no way of logging. I am bringing it to a new tuner this Monday, so hopefully he can figure out what’s up with all my issues. Plugs are new. Coils are stock, and wires are new.
__________________
2014 SS 1LE Money Pit/ Forged 402
CAM 22X/24X, .619/.617, 113 LSA/ LS9 Heads FIC 1200cc/DSX Aux Pump//McLeod RXT Clutch 730whp: 630Trq |
||
03-05-2021, 12:46 PM | #6 |
Drives: 2012 camaro 2ss rs L99 Join Date: Feb 2017
Location: North Sioux city SD
Posts: 446
|
Did the check engine light flash during the event?
__________________
2012 2SS/RS, L99, no cats/mufflers, Ported intake manifold, fuel rail upgrade, ID1050x injectors, Vmax throttle body, 25% UDP, GPI DOD delete, GPI SS3, GPI cnc heads, GPI – 5/16″ Hardened Pushrods, BTR trunion upgrade, BTR .660 springs, pcv revamp w/dual catch cans, Circle D 3800, full BMR suspension & bushings. ZL1 fuel pump, HPT programmed fpcm. JMS bap, Snow VC-50 methanol setup. custom 4gal methonal tank, vs7875 turbo, FMIC, precision 46mm WG, 50mm BOV, 3bar map, SJM line lock, Innovate SCG-1, Hurst shifter with tap shift mod, ×2 Holley 14" fans Diy E85, Diy auxiliary pump
|
03-05-2021, 01:18 PM | #7 |
Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,578
|
__________________
2014 SS 1LE Money Pit/ Forged 402
CAM 22X/24X, .619/.617, 113 LSA/ LS9 Heads FIC 1200cc/DSX Aux Pump//McLeod RXT Clutch 730whp: 630Trq |
03-05-2021, 02:29 PM | #8 |
Drives: 2010 Camaro 2SS Join Date: May 2016
Location: Kissimmee
Posts: 158
|
Ok what are your plugs gapped to?
If it’s set to the stock gap it will do that at wot. Most people set the gap to .028-.030 on the plugs with a combo like yours. I would set it to .028 for troubleshooting. |
03-05-2021, 06:09 PM | #9 |
Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,578
|
I have no ideaz. Shop built it, so I would assume they gapped it correctly. They were new NGK TR7
__________________
2014 SS 1LE Money Pit/ Forged 402
CAM 22X/24X, .619/.617, 113 LSA/ LS9 Heads FIC 1200cc/DSX Aux Pump//McLeod RXT Clutch 730whp: 630Trq |
03-09-2021, 09:27 AM | #10 |
Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,578
|
Shop called and plugs weren’t gapped incorrectly.
__________________
2014 SS 1LE Money Pit/ Forged 402
CAM 22X/24X, .619/.617, 113 LSA/ LS9 Heads FIC 1200cc/DSX Aux Pump//McLeod RXT Clutch 730whp: 630Trq Last edited by RupertPupkin; 03-09-2021 at 09:50 AM. |
03-09-2021, 09:32 AM | #11 |
Drives: 2015 zl1 m6 Join Date: Jan 2020
Location: Alaska
Posts: 702
|
Interesting . So how’d that end up happening ?
|
03-09-2021, 09:51 AM | #12 |
Drives: 2014 Camaro SS 1Le Join Date: Feb 2016
Location: IL
Posts: 1,578
|
Gapped incorrectly...*** and 1 of the wires was also cracked/damaged.
__________________
2014 SS 1LE Money Pit/ Forged 402
CAM 22X/24X, .619/.617, 113 LSA/ LS9 Heads FIC 1200cc/DSX Aux Pump//McLeod RXT Clutch 730whp: 630Trq |
03-09-2021, 02:34 PM | #13 |
2&THEHIT
Drives: 5th Gen Camaro; 5th Gen Ram 3500 Join Date: Mar 2018
Location: Garner, NC
Posts: 1,005
|
Wires was my input. A day late though...
Same thing happened to me. I’m relocating the coils to the frame rails to help keep the wires down away from the manifolds. (Also looks cleaner) Last edited by joshnmn; 03-09-2021 at 03:01 PM. |
|
|
Thread Tools | |
|
|