05-09-2017, 06:08 PM | #15 |
Drives: Red hot ZL1 A10 2017 Join Date: Nov 2016
Location: MS Back to France (29)
Posts: 804
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Just a question:
Why GM still go with 650/650 As almost all dynos show 580/580 ????? If we want to be right, why don't tell the car is 580hp...... |
05-09-2017, 06:22 PM | #16 |
Drives: 2017 Camaro ZL1 Join Date: Nov 2006
Location: Savage, MN
Posts: 568
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All the manufacturers rate their horsepower and torque at the crankshaft. As long as they are all doing it the same, power loss through the drivetrains is fairly equal across the manufacturers. The numbers people post are what you see when someone puts their car on a wheel dyno.
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05-09-2017, 06:29 PM | #17 |
Drives: 2013 Triple Black ZL1 / 2006 TB SS Join Date: Feb 2011
Location: MN
Posts: 2,250
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STD corrected numbers typically read about 2.6-3% higher than SAE.
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05-10-2017, 10:46 AM | #18 | |||||
Cal
Drives: 2017 6th Gen Camaro ZL1 Coupe M6 Join Date: Sep 2013
Location: Newport, NC
Posts: 779
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Quote:
I have been unable to find very many other Camaro6 forum members posting stock dyno numbers. That's why I posted this thread, hoping to see what others are getting. Naturally, when you get a new muscle car you wan't to see how it stacks up against the others. Nothing wrong with that, right? I was particularly interested to see whether there is any discernible difference between the M6 and A10 in terms of power to the rear wheels. Here's all I was able to find searching the forums so far: Only found one thread besides mine dealing with stock 6th Gen ZL1 dyno runs: Dyno Quote:
Quote:
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Doesn't show CF or Smoothing but curves look similar to my "un-smoothed" pull. Quote:
Here's what I've found on YouTube so far: ZL1 Tommy Bone stock 2017 ZL1 Dyno at Houston House of Power. DynoJet 2-wheel: 546 HP 532 TQ No CF or Smoothing shown but graph looks like my un-smoothed curves No mileage given but the post was last Nov 15. Must have been one of the first and couldn't have had more than a few hundred miles on it. Hennessey Performance 2017 ZL1 Camaro 567 Rear Wheel HP Dyno Test DynoJet 2-wheel: 567 HP 570 TQ no mileage listed CF: STD Smoothing: 5 GoFastLife WOW New 2017 Camaro ZL1 Makes how much power stock EDIT (Dyno Day) Claims (video overlay): 606 RWHP (No TQ value) ODO: 200 miles Unknown in-ground dyno No stated or visible CF or smoothing Didn't seem like a WOT pull - really slow Sharp Shifter 2017 ZL1 Camaro dyno 570 hp 545 tq STOCK DynoJet elevated 2-wheel: 570 HP 545 TQ CF: SAE Smoothing: 5 Doesn't say mileage [Summary] Code:
RWHP & Torque Dyno Type CF Smoothing Mileage 582 HP 574 TQ DynoJet STD 0 2200 ** Mine 480 HP ??? TQ Mustang ??? ? ? 545 HP ??? TQ DynoJet ??? ? ? 564 HP 535 TQ DynoJet ??? ? 300 521 HP 515 TQ Dynocom ??? ? 300 546 HP 532 TQ DynoJet ??? ? ? 567 HP 570 TQ DynoJet STD 5 ? 606 HP ??? TQ ??? ??? ? 200 570 HP 545 TQ DynoJet SAE 5 ? Based on what I'm seeing, even given the variations in correction factors and smoothing, It would seem that my car is still on the high side. Also, if the one comparative pair of dyno runs in the Camaro6 post is any indication, the M6 should be getting slightly higher numbers than the A10. The A10 makes up for this with the relative ease at which that engineering marvel of a tranny transitions the torque to the wheels, reducing wheel spin that I've been seeing on the M6. --Cal Last edited by cwebster; 05-13-2017 at 08:54 AM. Reason: Added mileage for one dyno pull - provided by owner |
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05-10-2017, 10:55 AM | #19 |
Drives: Fast Join Date: Mar 2015
Location: Michigan
Posts: 3,696
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You know I'm not sure if this is 100% accurate but I heard Jeremy Formato from Fasterproms (One of the best late model GM tuners in the country that I know of) say that anytime a dyno pull is done on a day that is hotter than 70 degrees Fahrenheit, tuners should use STD. He also says that SAE is based on a 60 degree day, and STD is based on a 70 degree day. So STD gives more power/tq to compensate for hotter temps?
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05-10-2017, 11:06 AM | #20 | |
Drives: Camaro Join Date: Mar 2017
Location: Phoenix, AZ
Posts: 157
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Quote:
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http://www.gonicd.com |
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05-10-2017, 11:07 AM | #21 |
Drives: Fast Join Date: Mar 2015
Location: Michigan
Posts: 3,696
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05-10-2017, 11:16 AM | #22 | |||
Cal
Drives: 2017 6th Gen Camaro ZL1 Coupe M6 Join Date: Sep 2013
Location: Newport, NC
Posts: 779
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HaHaHa! Yeah, it's a little deflating but I'm sure wnta1ss was just trying to keep things in perspective, as he indicated. I'm not sure I could attribute some nefarious motive to the choice of CF, though. It may just be a matter of personal preference. I watched this tuner setup another pull before me with the same CF/Smoothing while he conducted a complete tune on a power mod.
I'd rather know as much as I can about the way these dyno tests are conducted so I can make more accurate judgements on what my car is doing. Quote:
Quote:
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STD: 567 HP 570 TQ SAE: 570 HP 545 TQ Thanks for all the feedback guys! --Cal |
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05-10-2017, 11:23 AM | #23 | |
Cal
Drives: 2017 6th Gen Camaro ZL1 Coupe M6 Join Date: Sep 2013
Location: Newport, NC
Posts: 779
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Quote:
That seemed a little unkind... |
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05-10-2017, 12:10 PM | #24 | |
Drives: 2017 ZL1 Join Date: Mar 2017
Location: NH
Posts: 278
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Quote:
Regarding my dyno run, it was run around 300 miles and the operator also had issues getting it to stay hooked to the rollers. I'm also fairly certain, after watching other dyno videos and sheets, that the operator did not run it all the way through the RPM. I have a YouTube video out there somewhere I'll have to look for.
__________________
2017 Camaro ZL1, Nightfall Gray Metallic: M6, PDR, exposed CF, navigation, sunroof
Mods: Rotofab CAI, Tony Mamo TB, Kooks headers (green cats), 18% LPE lower pulley, E85/FlexFuel sensor. BC Forged RS41s (19x10, 19x12)/PS4S, R888R (305/325) Dyno: E40: 661whp/703wtq, 93: 633whp/674wtq |
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05-10-2017, 12:16 PM | #25 |
Drives: 2017 ZL1 Join Date: Mar 2017
Location: NH
Posts: 278
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__________________
2017 Camaro ZL1, Nightfall Gray Metallic: M6, PDR, exposed CF, navigation, sunroof
Mods: Rotofab CAI, Tony Mamo TB, Kooks headers (green cats), 18% LPE lower pulley, E85/FlexFuel sensor. BC Forged RS41s (19x10, 19x12)/PS4S, R888R (305/325) Dyno: E40: 661whp/703wtq, 93: 633whp/674wtq |
05-10-2017, 12:39 PM | #26 | |
Cal
Drives: 2017 6th Gen Camaro ZL1 Coupe M6 Join Date: Sep 2013
Location: Newport, NC
Posts: 779
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Quote:
It's hard to read those curves too but torque should jump to max almost immediately, somewhere around 3k RPM. I can't tell what type of dyno they're using but it doesn't look like any that I've looked at so far - certainly not a DynoJet. I've updated my summary with your mileage. Thanks for the feedback. --Cal |
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05-10-2017, 01:23 PM | #27 | |
Drives: 2017 ZL1 Join Date: Mar 2017
Location: NH
Posts: 278
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Quote:
Yeah, I noticed when it was happening that it seemed to top out really quickly, but didn't think anything about it at the time. Once I hit break-in mileage I'll go back and make sure they do it properly. I'll get another before and after they put in the headers.
__________________
2017 Camaro ZL1, Nightfall Gray Metallic: M6, PDR, exposed CF, navigation, sunroof
Mods: Rotofab CAI, Tony Mamo TB, Kooks headers (green cats), 18% LPE lower pulley, E85/FlexFuel sensor. BC Forged RS41s (19x10, 19x12)/PS4S, R888R (305/325) Dyno: E40: 661whp/703wtq, 93: 633whp/674wtq Last edited by TheElementalCashew; 05-10-2017 at 05:45 PM. |
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05-10-2017, 02:15 PM | #28 |
Drives: Camaro Join Date: Mar 2017
Location: Phoenix, AZ
Posts: 157
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LOL well it wasn't meant to be unkind or kind at all, just that you don't pick your correction factor based on ambient temperature. Shops use STD correction factors when they want to give the customer a higher number and that's all.
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19 ZR1 | 16 Viper GT | 09 Z06 | 94 LS1 GT | 16 Denali | 19 CTS
http://www.gonicd.com |
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