02-10-2014, 10:54 AM | #1 |
Drives: Gas Guzzlers Join Date: Feb 2014
Location: San Diego, CA
Posts: 168
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Question about mods for those with experience
Hi - So I've got a ZL1 it's automagic, when you live in California, and traffic sucks, it's sometimes better to call your losses and get an auto.
So far I've got a roto-fab intake, American racing headers, high flow cats, and corsa exhaust. Do I need to tune this car? The headers and cats I haven't installed yet, I'm assuming a check engine light. |
02-10-2014, 11:10 AM | #2 |
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,808
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get a pulley upgrade and a tune...what a difference!
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold) |
02-10-2014, 11:18 AM | #3 |
Drives: 2013 ZL1, 2016 Denali HD Join Date: Jun 2013
Location: Greensboro Ga.
Posts: 540
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+ 1 Upgrade your pulleys at the same time as installing the headers then get a tune !
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LSX 427, Twin Precision Turbo's, 64/66. Nitrous Outlet System. Pro EFI Engine Management Systems. Vengeance Racing Built......
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02-10-2014, 11:47 AM | #4 |
Drives: Gas Guzzlers Join Date: Feb 2014
Location: San Diego, CA
Posts: 168
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But changing out the pulley's isn't so simple it's like you gotta take the whole supercharger apart.
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02-10-2014, 12:00 PM | #5 | |
Drives: C7 / ZL1 / SS / trucsk Join Date: Nov 2009
Location: G4 CLASSIFIED
Posts: 4,533
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Quote:
No tune is required, but for optimal performance HP gains, you will!
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2014 C7 Stingray 3LT/Z51
2013 Camaro SS 2012 Camaro ZL1 - 850 HP 2015 GMC Denali 3500HD 4x4 2012 GMC Sierra 3500HD 4x4 |
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02-10-2014, 12:10 PM | #6 |
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,808
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Lower pulley doesn't require taking the whole supercharger apart. Only the upper pulley requires supercharger removal.
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold) |
02-10-2014, 12:43 PM | #7 |
Drives: Black ZL1 Join Date: Apr 2013
Location: City of Champions, Alabama
Posts: 3,698
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Ok, so I've been running basically that same setup, exception being that I still have the factory pipes and mufflers. I've had it 10,000 miles or so with CEL and it runs fine, runs better than stock on the drag strip, sounds really good. The CEL doesn't bother me as long is it's those two codes it's supposed to throw and I can't remember what they are off of the top of my head.
But as others mentions, I'm about to do a pulley and a tune anyway.
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02-10-2014, 02:41 PM | #8 |
Drives: Gas Guzzlers Join Date: Feb 2014
Location: San Diego, CA
Posts: 168
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Is there a tool I can buy to get rid of the CEL's or should I just send it to Hennessey Performance for them to tune it for me.
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02-10-2014, 02:58 PM | #9 |
Drives: 2013 ZL1, 2016 Denali HD Join Date: Jun 2013
Location: Greensboro Ga.
Posts: 540
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The CEL's dont hinder any performance gains.... Just find a good tuner in your area and watch the HP gains, GM left a whole lot on the table. Just keep in mind depending on your dealer they will void your warranty ! IMHO its so worth all the mods.
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LSX 427, Twin Precision Turbo's, 64/66. Nitrous Outlet System. Pro EFI Engine Management Systems. Vengeance Racing Built......
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02-10-2014, 03:34 PM | #10 | |
Drives: 2011ShelbyGT500 Join Date: Jan 2014
Location: Louisiana
Posts: 293
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Quote:
I wouldn't suggest to ANYONE to run their FI car with a check engine light. Especially at the track. Let's just say for instance you develop an air leak which should trigger you engine light showing it's running lean, but the light's on consistant already for some 02 sensors. How will you know there's a problem before BOOM. |
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02-10-2014, 08:10 PM | #11 |
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