6h Gen ZL1 Dyno Thread

*mlee* · 04-18-2017, 10:01 PM

Now that both M6 and A10's are on the streets... let's see the numbers..

Here's one ATI just posted.

Ron_Robinson1 · 04-18-2017, 10:46 PM

Did I miss something, full exhaust a no tune?

I'm more interested in the weight loss..

edc901 · 04-19-2017, 12:42 AM

I guess the stock manifolds are pretty good.... 14 peak....

newmoon · 04-19-2017, 06:49 AM

540/548 stock, wow that is huge drivetrain loss compared to the advertised 650/650.

zl1_tommy · 04-19-2017, 07:09 AM

Quote:

Originally Posted by newmoon

540/548 stock, wow that is huge drivetrain loss compared to the advertised 650/650.

You see 15% loss through a manual, more through an auto. Its not that surprising.

Ron_Robinson1 · 04-19-2017, 07:36 AM

Quote:

Originally Posted by edc901

I guess the stock manifolds are pretty good.... 14 peak....

It said headers I'm Pretty sure. Just that one picture showed the full stock exhaust minus headers.

Bigwhyte · 04-19-2017, 07:48 AM

I guess I was a little surprised that long tubes and exhaust didn't yield better results alone. It did smooth out the curve, the stock pull was very choppy

7WSM · 04-19-2017, 07:49 AM

Quote:

Originally Posted by newmoon

540/548 stock, wow that is huge drivetrain loss compared to the advertised 650/650.

It's also that dyno on that particular day. Every dyno is going to read something a little different.

Ron_Robinson1 · 04-19-2017, 08:27 AM

Quote:

Originally Posted by 7WSM

It's also that dyno on that particular day. Every dyno is going to read something a little different.

This.. I never buy into dyno numbers, its just a tuning tool.

IneedAZ · 04-19-2017, 08:37 AM

Would love to see a time slip with CAI and exhaust only vs stock

newmoon · 04-19-2017, 09:16 AM

Quote:

Originally Posted by 7WSM

It's also that dyno on that particular day. Every dyno is going to read something a little different.

----------------------------------------------------------------------------------

I understand but these are huge power losses from advertised to actual. Take for example many of the 2016/17 SS automatics which seem to dyno 410-420 hp, and 420-430 tq, which is very little loss as compared to advertised.

7WSM · 04-19-2017, 09:32 AM

Quote:

Originally Posted by newmoon

----------------------------------------------------------------------------------

I understand but these are huge power losses from advertised to actual. Take for example many of the 2016/17 SS automatics which seem to dyno 410-420 hp, and 420-430 tq, which is very little loss as compared to advertised.

Depends on the type of dyno, the scaling they are using, weather conditions and so forth. Even with a correction factor, you can wildly different numbers from one day to the next and dyno to dyno. I watched a video the other day and it showed a 17 ZL1 which dynoed 605RWHP. Meaningless to me. It's just a tuning tool.

*Mr. Wyndham* · 04-19-2017, 10:15 AM

Seems like the stock exhaust system is pretty darn good!!

laynlo15 · 04-19-2017, 10:27 AM

Nice drag strip video also. Good job

04-18-2017, 10:46 PM	#2
Ron_Robinson1 Drives: A Static line to a pack tray & ZL1 Join Date: Feb 2011 Location: Centeral NY Posts: 2,276	Did I miss something, full exhaust a no tune? I'm more interested in the weight loss.. __________________ 2017 ZL1 A10: 8.84 @ 156 PB 2017 ZL1 A10: Previously FBO 756/761 (9.6 @ 143 1/4) SOLD-2013 ZL1 M6:BTR,LTs,IDs,ATI,RotoFab10.84@129 SOLD-2011 SS M6: Blower, Cam, Alky, LTs.

04-19-2017, 12:42 AM	#3
edc901 Drives: 2017 ZL1 Join Date: Mar 2017 Location: Memphis Posts: 95	I guess the stock manifolds are pretty good.... 14 peak.... __________________ 2017 Camaro ZL1 Hyper Blue - A10

04-19-2017, 06:49 AM	#4
newmoon Drives: 2019 GT350 Join Date: Jan 2011 Location: NC Posts: 3,232	540/548 stock, wow that is huge drivetrain loss compared to the advertised 650/650. __________________ 2019 GT350 RR 2013 Boss Mustang 2012 SRT Challenger 392 auto 12:40s 112 stock 2012 Ford Mustang 5.0. Brembo, 3:73s 2010 SS, LS3, Cammed, LTs, 12:20s 2004 Redfire Cobra, Pullied & Tuned 1986 GT, Ed Curtis 347ci, 11:20s motor. 10:30s 100-hp shot

04-19-2017, 07:48 AM	#7
Bigwhyte Drives: 2017 ZL1 Join Date: Feb 2017 Location: Fritch, TX Posts: 28 View My Garage	I guess I was a little surprised that long tubes and exhaust didn't yield better results alone. It did smooth out the curve, the stock pull was very choppy __________________ 2017 ZL1 M6

04-19-2017, 08:37 AM	#10
IneedAZ Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr Join Date: Mar 2009 Location: Tampa Posts: 5,110 View My Garage	Would love to see a time slip with CAI and exhaust only vs stock __________________ Sold 2012 2LT RS 12.3@112 old setup Sold 1967 Camaro Pro Street. Ran 10's mild BB on NOS. 2017 HyperBlue ZL1 A10 Born 3/17/17Delivered 4/08/17 2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. 807hp/762tq on 93 gas and 848hp/792tq on e47 Sold 2018 (Go Mango) Dodge Charger Daytona 392 Daily Driver Daily Driver 2021 BMW M340i Xdrive

04-19-2017, 10:15 AM	#13
Mr. Wyndham I used to be Dragoneye... Drives: 2018 ZL1 1LE Join Date: Jan 2007 Location: Buffalo, NY Posts: 31,876 View My Garage	Seems like the stock exhaust system is pretty darn good!! __________________ *"Keep the faith."* - Fbodfather

04-19-2017, 10:27 AM	#14
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	Nice drag strip video also. Good job __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

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