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11-21-2017, 06:09 PM
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#1 |
 
Drives: 2017 ZL1 Vert Arctic Blue Join Date: Mar 2017
Location: Phoenix, AZ
Posts: 73
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Headers and upper pulley
Just picked her up with 1 7/8" ARH, upper pulley, tune, and a couple other goodies (including a built/fabricated in house expansion tank). Baseline was 551/578 with TM throttle body and K&N intake. Bumped up to 602/650. Kept stock muffler. Perfectly raspy and loud under throttle. And skip shift deleted out with tune. Big time thanks to Joe Cordes at Cordes Performance Racing in Tempe, AZ.
https://youtu.be/GoUZvMKHJ0k |
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11-21-2017, 06:18 PM
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#2 | |
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Bupp Motorsports
Drives: 2017 Summit White ZL1 A10 Join Date: Jun 2013
Location: Fort Lauderdale fl
Posts: 288
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11-22-2017, 11:59 AM
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#3 |
 Drives: 17 NFG ZL1 17 GTR 22 RS6 Join Date: Apr 2017
Location: Upper Marlboro MD
Posts: 625
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great numbers!!!! why is your graph that jagged and that dip at 4k seems rough?
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11-22-2017, 06:32 PM
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#4 |
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Drives: 2017 ZL1 Vert Arctic Blue Join Date: Mar 2017
Location: Phoenix, AZ
Posts: 73
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Boost was 11-12 psi at peak.
The drop-off is from our sub standard desert 91 octane so they had to pull the timing. The bounce in the data is from some tire bounce on the dyno. They could have smoothed the data out but the numbers start to get skewed. I certainly have not felt any drop off above 4k rpms but sure sounds like it's the loudest thing on the road at 3K plus (helps to be in a convertible also!) |
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11-24-2017, 03:42 AM
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#5 |
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Drives: 17 NFG ZL1 17 GTR 22 RS6 Join Date: Apr 2017
Location: Upper Marlboro MD
Posts: 625
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I'm very excited as i want to start off with with headers and upper pulley to go wit my rotofab and TM TB, with 93 octane I'm guessing a few more ponies are available so I'm game!!
thx!! |
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11-24-2017, 03:43 AM
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#6 |
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Drives: 17 NFG ZL1 17 GTR 22 RS6 Join Date: Apr 2017
Location: Upper Marlboro MD
Posts: 625
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are you running stock cats?
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11-24-2017, 11:49 AM
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#7 |
 Drives: 2017 ZL1 A10 Nightfall Grey Join Date: Nov 2017
Location: Tampa
Posts: 315
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Thats exactly what id like to do. It looks great! Im curious as to why so many people leave the stock muffler? Is there a benefit? Or just unnecessary?
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11-24-2017, 12:16 PM
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#8 |
 Drives: Zl1 Join Date: Feb 2017
Location: Washington
Posts: 195
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I have done pretty much the same mods except i did lower pulley and no cats. It was a mail order tune from vengeance so no dyno but wow what a difference. I've had alot of fast street cars and anything much over 650 at wheels gets pretty crazy. My fox body mustang makes 950 at tires and that much on street is just nuts. I am considering the wipple for the z but it runs so good now its a tough choice.
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11-24-2017, 12:32 PM
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#9 |
 
Drives: 2017 ZL1 Convertible A10 Join Date: Aug 2017
Location: San Gabriel, CA
Posts: 992
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OP, do you have an A10 or manual?
__________________
'17 White ZL1 A10 Convertible - TM ported TB - RotoFab CAI - 2.3" griptech upper pulley - Kooks 1 7/8" Headers with High Flow Cats - Borla S-type Catback - Audio Overhaul - NavTV M650-GM - 20" BlackDiForza- Michelin Pilot Sport4S - Tuned at BRC Raceworks (606rwhp/675trq)
'14 CTS-V Coupe - ZL1 lid - Ported TB - Ported Snout - AirRad CAI - 8.66" lower - 2.55" upper- Greenbelt - SW Headers - SW Catback - Varimax Intercooler Pump - Track Attack Intercooler-Tuned at BRC Raceworks (551rwhp/516trq) '17 Maserati Levante- STOCK  |
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11-24-2017, 02:26 PM
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#10 | |
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Drives: 2017 ZL1 Vert Arctic Blue Join Date: Mar 2017
Location: Phoenix, AZ
Posts: 73
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11-24-2017, 02:27 PM
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#11 | |
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Drives: 2017 ZL1 Vert Arctic Blue Join Date: Mar 2017
Location: Phoenix, AZ
Posts: 73
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11-24-2017, 02:39 PM
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#12 | |
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Drives: 2017 ZL1 Vert Arctic Blue Join Date: Mar 2017
Location: Phoenix, AZ
Posts: 73
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11-24-2017, 05:15 PM
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#13 |
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Life's Short, Live Fast!
Drives: 2017 Hyper Blue A10 ZL1 Join Date: Nov 2016
Location: London, KY
Posts: 2,015
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I'd like to have that ice box! Once I start modding, that will definitely be on my list.
__________________
Life's Short, Live Fast! https://youtu.be/rTUv2p4T7OA 10.94 at 128 mph, 11.13 at 127mph 870 DA, https://youtu.be/e_X_LcpFp50 11.19 at 127mph 1100 DA, https://youtu.be/OXQiCQdQuH4 11.40 at 125mph 1800 DA
https://youtu.be/uWba1qs8M6Q 11.52 at 123mph 3500 DA TZQPHG '17 ZL1 HBM|A10|Nav|PDR|CFW Hood|ZL1 Mats 12/26/2016 Ordered! 2/8/2017 Built!! 3/2/2017 Brought Home!!! |
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