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06-02-2018, 07:25 AM
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#1 |
 
Drives: 2018 2ss 1le Join Date: Jan 2018
Location: Huntington, NY
Posts: 474
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m6 flat spot
any one else feel like there is a flat spot say 3000-3500
2ss 1le my mods rotofab dry, ported throttle body, tune from dyno steve, mishimoto catch can. mind you I feel like I noticed the flat spot after the cold air install which was done at the same time as the catch can.. but I did that during my break in and cant really be sure it wasn't there before... any possibility there could be a vacuum leak with the catch can, I am not a fan of those quick disconnects, have tried spaying near the connectors and nothing happens but till don't like them.. |
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06-02-2018, 08:44 AM
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#2 |
  Drives: Tesla M3 LR-AWD [Former 1SS owner] Join Date: Jan 2018
Location: Miami
Posts: 950
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I haven't noticed, but will pay more attention. No mods here.
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06-02-2018, 08:57 AM
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#3 |
        Drives: SS 6 speed of course Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,316
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I think 1st gear is heck of long, I "fixed" mine with long tubes and E85. I was still relatively unhappy with its street fighting and was going to permanently fix it with a 412 stroker, but decided to go cam, heads and supercharger. Note that only a really tight LSA cam like 110 would be able to bring enough midrange back and heads don't really help midrange. Hence I was either going with stroker or supercharger. The real fix is gears but that ain't happening. A tight LSA may require flycutting the pistons, especially if the heads are cut for higher CR, which does help midrange. No vendor that I know of has a tight LSA cam,
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.
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06-02-2018, 07:44 PM
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#4 |
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Drives: 6th gen Join Date: Aug 2013
Location: US
Posts: 3,670
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Gears or at minimum 26” tires
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‘22 2SS 1LE M6 Summit White - RF, Flexfuel, LT2 intake, 95mm tb, ATI udp, VT ramair, full 28” dragpack - 11.68@122
‘16 1SS M6 LT2 intake + boltons on DR 11.0@126+ (Sold) |
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06-02-2018, 09:01 PM
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#5 |
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Drives: Chevrolet Camaro SS Join Date: Mar 2015
Location: Planet Earth
Posts: 721
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You mean like the same dip the LS motors have around 3500 RPM?
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06-03-2018, 09:42 AM
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#6 |
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Drives: 2018 2ss 1le Join Date: Jan 2018
Location: Huntington, NY
Posts: 474
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I don't know about the ls motors
I just know that the motor is strong in any gear even from 2000 but when you hit 3000-3500 (obviously more noticeable from 3rd gear up) its not linear feels kind of like flat and then picks up again after 3500 doesn't feel right certainly not what id expect from this motor.. ill talk to my tuner again but I wanted to know if others feel this or its just me... also curious about the catch can if its possible to cause a vacuum leak with one of those quick disconnects and if anyone else has had that issue... |
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06-03-2018, 10:16 AM
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#7 |
 Drives: 2016 camaro SS Join Date: Mar 2018
Location: CA
Posts: 53
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That’s odd, mine feels great around that RPM, mods are
CAI, PRAY ported IM , TONY mamo ported TB and cat deletes . I still have a CEL and it’s bc I have not had time to get it tuned but car feels way more stronger tha. It did when it was bone stock. I am quite happy with it over all and it’s an m6 btw |
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06-03-2018, 10:22 AM
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#8 |
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BAMF SS
Drives: 2016 Camaro 1SS A8 Join Date: Mar 2010
Location: Ford City, PA
Posts: 3,023
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Whens the last time you had your butt dyno calibrated?
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06-03-2018, 12:49 PM
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#9 | |
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Drives: 2018 2ss 1le Join Date: Jan 2018
Location: Huntington, NY
Posts: 474
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Quote:
I have the mamo throttle body and cant seem to get in touch with pray about the manifold im going to reload my tune today and see if that straightens this out.. any way llike I said just looking to see if any one else felt this way btw that is secondary cat deletes right? and what did you do get the borla pipe or gut them? |
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06-04-2018, 01:57 AM
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#10 |
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I haven't noticed that but next time I take it out I will pay attention when in that RPM band to see if I notice anything.
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06-04-2018, 06:20 AM
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#11 |
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Drives: Black Join Date: Jan 2017
Location: Nj
Posts: 440
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Should get the torque app and monitor your sensors.
Also you should specify if this is at wot or part throttle or both, WOT has different tuning |
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06-04-2018, 07:09 AM
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#12 |
Drives: 2017 Camaro ZL1 Coupe Join Date: May 2016
Location: Georgia
Posts: 5,811
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I haven't noticed either with my 2016 but will check when I drive it this week. Only mod to mine is a Cold Air Inductions CAI. It might well be in your tune though. My 2010 LS 3 had a flat spot in about the same range as your LT1 after tuning for LTs and a CAI install.
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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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06-04-2018, 07:27 AM
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#13 |
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Drives: Tesla M3 LR-AWD [Former 1SS owner] Join Date: Jan 2018
Location: Miami
Posts: 950
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I'd figure an issue like this would show up on a dyno?
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06-04-2018, 07:58 AM
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#14 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,793
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Sounds tuning related.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
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