12-15-2015, 08:56 AM | #99 |
Drives: Current Camaro-less Join Date: Jul 2014
Location: Oregon
Posts: 3,242
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SAE requires the engine to be within (I think) 3% of the 'stated rating' on a properly and confirmed correct engine dyno. They cannot have wildly fluctuating power levels in these cars due to need for consistent baselines for repairs and such..
Small fluctuations are normal.. 455 HP, 453 HP, 458 HP, 456 HP...but not 455 HP, 485HP, 425HP, 475HP... |
12-15-2015, 10:10 AM | #100 |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,223
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Guy Guys, Please, your getting caught up in an argument about a Correction factor and not an actual number.
It is 100% true engines make more power when it is cold and less power when it is hot. A correction factor is only for reference. A correction factor is Merely what One guy thinks is a standard day, He then uses Math to get back to what he considers a standard day for his part of the world. and like I said there is a lot of guys out there, I think there are almost 20 different correction factors on the books depending on what part of the world your from. For Us in the Northeast STP is as close to a standard day as it gets. My car made 466 Crank HP the day on the dyno, True!!! I have the Data to prove it. Lets all play together nicely. Ted.
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12-15-2015, 10:28 AM | #101 | |
having FUN now 13.66@101
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Quote:
SO TRUE. THANK - YOU Sort of like using DA for 1/4 mile times. Strictly to help level the playing field when it comes to bench racing. Every DYNO is different, every engine is different, and every day is different. It is only a number. All too funny how so many get hung up on a number only!
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12-15-2015, 10:59 AM | #102 | |
Drives: 2022 F150, 87 Monte Carlo Join Date: Mar 2015
Location: MN
Posts: 1,267
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Quote:
GM uses SAE. Had they used STD or STP, that 455 or 458 would have been more like 470. |
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12-15-2015, 11:11 AM | #103 | |
Drives: 2013 Triple Black ZL1 Vert M6 ECF Join Date: Mar 2011
Location: Trenton, Michigan
Posts: 7,047
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Quote:
And yes the dyno numbers for my car came out just fine and were the same from two different dyno's on completely different day. As they say, you're getting way to hung up on specific numbers various people are measuring and comparing those numbers to the published manufacturing specs. I'd only be concerned if the measured number would fall short of the advertised numbers. And yes, I'd agree myself that the driveline losses could very well be one of the big area's they're concentrating on improving for many reasons. Just sit back and be very happy with the performance of the new SS's, and hold on to your shorts, I can only dream of the numbers a new ZL1 (or whatever they call it) will put down. The current Gen6 SS is already darn close to Gen5 ZL1 performance numbers in some area's. |
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12-15-2015, 02:00 PM | #104 |
Drives: 2022 F150, 87 Monte Carlo Join Date: Mar 2015
Location: MN
Posts: 1,267
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Stock vs stock, the SS is 95% equal to the Zl1. With better tires, like the zl1 has I'd say it's 98% there, just like Mark R alluded too.
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12-20-2015, 11:11 AM | #105 |
Don't Like it? Suggit.
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Wow. Very impressive numbers...
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"Tops off, tach up baby- loud and proud!" A Camaro lover from day one- 1996 3.8 V6 Camaro, to 1996 5.7 LT1 Camaro Z28, to the sold 2002 5.7 LS1 Camaro SS, and NOW, a [I]6.2 L99 VR 2SS/RS: XS Power stainless full exhaust, Airaid CAI, BMR drop springs and sways, custom tune by Cal Speed- 411rwhp |
07-23-2016, 08:42 AM | #106 |
Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009
Location: ON THE DYNO WATERBURY CT.
Posts: 15,223
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Yes and the manual cars are putting down similar numbers as well.
Proper dyno test procedures are critical to obtaining accurate repeatable numbers. These cars are under rated at 455/455 they are actually 465/465 The most impressive gains so far have been the ARH long tube headers and exhaust see this thread. http://www.camaro6.com/forums/showthread.php?t=436608
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Celebrating 37 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com |
07-23-2016, 12:22 PM | #107 |
Drives: Current Camaro-less Join Date: Jul 2014
Location: Oregon
Posts: 3,242
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Again, under rating cannot happen under SAE testing.
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07-23-2016, 01:24 PM | #108 |
Drives: 1969 Mustang MaCh1 Join Date: Nov 2015
Location: SJ
Posts: 835
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+1
The engines make +-1% of their rated power.
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07-23-2016, 09:33 PM | #109 |
Drives: 2016 Summit White 2SS (Auto) Loaded Join Date: Jul 2016
Location: Ontario
Posts: 487
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Well that's impressive numbers and great to hear
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07-24-2016, 07:27 PM | #110 |
Drives: 2021 LT1 10 speed auto Join Date: May 2013
Location: Connecticut
Posts: 2,343
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Did they do any tuning after the baseline pull?, I live in Connecticut, how well did they treat you? how much did it cost you to make 1 pull, 2 pulls, etc. I have a C7 and no one that I know has done any LT1 tuning yet.
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07-24-2016, 07:43 PM | #111 |
Drives: 2021 LT1 10 speed auto Join Date: May 2013
Location: Connecticut
Posts: 2,343
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that's 476 crank hp figuring a 15 % drive train loss. The Camaro because of the tri y exhaust manifolds put out 10 to 15 more horse than the average LT1 C7
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07-24-2016, 09:46 PM | #112 |
Drives: Current Camaro-less Join Date: Jul 2014
Location: Oregon
Posts: 3,242
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Modern transmission losses, especially automatics, lose much less than before. You need to be looking at closer to 10% losses vs 15%+...parasitic loss isn't static and you can't just do hard figures like that.
The fact is the LT1 is certified, in the Camaro, at 455HP. That means it can range from 450ish to 460...not 470+. |
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