05-25-2011, 04:11 PM | #1 |
Drives: black on black twenty ten ss/rs Join Date: Jul 2009
Location: Texas
Posts: 428
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Loss of power/jerk somewhere between 45-55?
anytime i romp on it from a low speed and it hits about 50 I guess I'm switching a gear, however it pauses and then resumes acceleration. U have the torque pushin you back then you have a large gap and you actually get pushed forward and then it kicks back in. It doesn't do it on any other gear. I have a predator tune on my car, could that have anything to do with? if so what parameter do i need to adjust?
any comments are appreciated. thanks! O and my car is an Automatic (L99).
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I GOT MINE! Where's yours? :(
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05-25-2011, 04:51 PM | #2 |
10.11 @ 136.32
Drives: Black & Yellow 2SS/RS LPE LS7 427 Join Date: Mar 2010
Location: Redcliff, Alberta
Posts: 957
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I'd say your bouncing off the rev limiter when shifting from 2nd to 3rd. Your probably spinning the tires in 2nd and the revs get up there real fast.
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05-25-2011, 07:18 PM | #3 |
Plays with Hot Wheels
Drives: '17 Jet Black ZL1 Join Date: Apr 2010
Location: Derby, Kansas
Posts: 849
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Is it with Traction Control on, off, or in "Comp Mode?
My first guess would be that it's probably your traction control kicking in when your car is making the 1-2 shift.
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Previous Cars: '78 Z28, '92 Z28, '95 Z28, '85 Corvette, '01 SS, '96 Z28, '04 Z06 Corvette, '10 SS, '13 SS Hot Wheels
Current Cars: '17 ZL1(daily driver), '04 Trailblazer (rain & snow), '66 Corvette (restoring) |
05-25-2011, 07:19 PM | #4 | |
Quote:
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- 2013 Black ZL1 - A6 - Lingenfelter/Cordes Stage 2.5 packages E85 - FORE Fuel System - Kooks LTHs - Magnaflow Cans - Rotofab CAI/Big Gulp/Coolant Tank - Savini 3pc Forged - Underhood Dress Up (ACC & Drake & Moroso) - Hurst Shifter Kit - Custom Audio w/ JL Audio Sub/Amp/Stealthbox - Hand Polished Brace - Oracle Ghost Sidemarkers - LEDs everywhere - 624/617 on E85 & 545/548 on 91 (Sept 2015) - 693rwhp (Dec 15)
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05-25-2011, 07:20 PM | #5 |
hehe great minds think alike in the same minute...
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- 2013 Black ZL1 - A6 - Lingenfelter/Cordes Stage 2.5 packages E85 - FORE Fuel System - Kooks LTHs - Magnaflow Cans - Rotofab CAI/Big Gulp/Coolant Tank - Savini 3pc Forged - Underhood Dress Up (ACC & Drake & Moroso) - Hurst Shifter Kit - Custom Audio w/ JL Audio Sub/Amp/Stealthbox - Hand Polished Brace - Oracle Ghost Sidemarkers - LEDs everywhere - 624/617 on E85 & 545/548 on 91 (Sept 2015) - 693rwhp (Dec 15)
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05-25-2011, 07:45 PM | #6 |
Drives: Awaiting 2014 C7 Join Date: Sep 2009
Location: Sunshine State
Posts: 902
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Sound like your tune is off a bit. Had a similiary issue and my shift point needed to be tweaked. Is this happening in D or M?
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Awaiting 2014 C7
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05-25-2011, 08:10 PM | #7 |
Drives: black on black twenty ten ss/rs Join Date: Jul 2009
Location: Texas
Posts: 428
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to answer the questions. it is in Drive. and everything is regular, traction control on and NOT in comp mode. and i don't think my wheels are slipping to be honest.
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I GOT MINE! Where's yours? :(
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05-25-2011, 08:21 PM | #8 | |
Plays with Hot Wheels
Drives: '17 Jet Black ZL1 Join Date: Apr 2010
Location: Derby, Kansas
Posts: 849
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Quote:
You got that right, even more so when I saw you're Air Force. What's your AFSC? I was a KC-135 Crew Chief for 20 years.......retired in 2007. I was TDY at DM when I dropped off my last "A" model (56-3621) at the boneyard in '94 with barely 10,000 hours on it.....what a waste of a perfectly good Tanker....sad day :flag1:
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Previous Cars: '78 Z28, '92 Z28, '95 Z28, '85 Corvette, '01 SS, '96 Z28, '04 Z06 Corvette, '10 SS, '13 SS Hot Wheels
Current Cars: '17 ZL1(daily driver), '04 Trailblazer (rain & snow), '66 Corvette (restoring) Last edited by Ron66Vette&10SS; 05-25-2011 at 09:02 PM. |
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05-26-2011, 08:04 AM | #9 |
Drives: Awaiting 2014 C7 Join Date: Sep 2009
Location: Sunshine State
Posts: 902
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It sound like something is amiss in your tune. Are you working with a local tuner or did you do a mail order. Also are you using HP tuner, EFI Live or SCT?
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Awaiting 2014 C7
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05-26-2011, 08:05 AM | #10 | |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,223
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Quote:
It is Best to return the car to stock and sell off your Predator and Purchase an SCT X3 from me then I can tune your Engine and Transmission to Perfection and give you the Performance you expect out of your L99. Ted.
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www.jannettyracing.com
Celebrating 37 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com |
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