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Old 08-03-2009, 07:25 PM   #1
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L99 DYNO 331/345 stock, 341/356 tuned

dyno'd mine today at New Era, only mod on both runs is a SLP LM1 axle back which shouldnt add any power, car had aprox 1050 miles on it, 93 octane gas

331.37/345.57 stock

341.17/356.51 tuned

it gained close to 17rwhp and 17rwt at 5200rpms

run 1- 86.23f, 29.53in-hg, humidity 21%, sae 1.01

run 2- 89.83f, 29.53in-hg, humidity 17%, sae 1.01
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Old 08-03-2009, 07:33 PM   #2
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Great numbers
Your L99 must have really liked temperatures in the mid 70s today in Rochester N.Y.
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Old 08-03-2009, 07:34 PM   #3
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Quote:
Originally Posted by 9c1ny View Post
dyno'd mine today at New Era, only mod on both runs is a SLP LM1 axle back which shouldnt add any power

331.37/345.57 stock

341.17/356.51 tuned

it gained close to 17rwhp and 17rwt at 5200rpms


I will post up the dyno sheet later
I don't get some of these bogus numbers people are posting. How can you say it gained 17 HP, when the tuned numbers you posted only show 10?
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Old 08-03-2009, 07:41 PM   #4
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I don't get some of these bogus numbers people are posting. How can you say it gained 17 HP, when the tuned numbers you posted only show 10?
He's talking about in the mid range (5200 rpms). Its very common for the L99to make 20 rwhp/20 lb ft+ of torque in the mid range from a tune.
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Old 08-03-2009, 08:31 PM   #5
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Great numbers
Your L99 must have really liked temperatures in the mid 70s today in Rochester N.Y.
it was in the mids 80s I think, and thanks for the clarification about the gains, some people dont get it
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Old 08-03-2009, 08:48 PM   #6
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At 331 factory rwhp, you got a good "properly tuned" one, 9c1ny. Thanks for letting us know they're out there.
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Old 08-03-2009, 08:55 PM   #7
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At 331 factory rwhp, you got a good "properly tuned" one, 9c1ny. Thanks for letting us know they're out there.
no problem, glad I got a "good" one
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Old 08-03-2009, 09:00 PM   #8
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Great numbers.Where is new era 9c1ny?
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Old 08-03-2009, 09:03 PM   #9
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Great numbers.Where is new era 9c1ny?
Rochester NY-

http://www.neweraperformanceparts.com/

I wish I had a little more $$$ to get their intake, saw a bunch of them and they looked great!
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Old 08-03-2009, 09:04 PM   #10
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We are located in Rochester, NY. Actually, if you look at the bottom of the sheet, you can see the run conditions, it was between 86-89 degrees in the shop while I was tuning, ECT (Engine Coolant Temperature) was 195 degrees(+/- 3 degrees) every pull.
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Old 08-03-2009, 09:16 PM   #11
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Mike have you tuned any of the m6 ls3.If so what kind of gains can i expect?
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Old 08-03-2009, 10:51 PM   #12
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Yes I have. You can expect 10-15 rwhp from the tune, never know, they are all a little bit different.
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Old 08-04-2009, 07:51 AM   #13
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That makes sense about the weather. It does get a lot warmer in the shop. When it was in the low 90s, my dyno readings were showing 100 degrees.

Because yesterday was a pretty cool day (for summer in the U.S.). Here's the stats for Rochester N.Y. yesterday. I can only imagine how nice tempertures in the 70s with relatively low humidity would feel. I'll have to wait until late November for a day like you guys had yesterday.


9:54 AM 68.0 F 60.1 F 76% 30.00 in 10.0 miles SSW 8.1 mph - N/A Partly Cloudy
10:54 AM 71.1 F 60.1 F 68% 30.01 in 10.0 miles WSW 4.6 mph - N/A Partly Cloudy
11:54 AM 73.0 F 59.0 F 61% 30.01 in 10.0 miles SW 8.1 mph - N/A Scattered Clouds
12:54 PM 75.0 F 55.0 F 50% 29.99 in 10.0 miles SW 9.2 mph - N/A Scattered Clouds
1:54 PM 75.0 F 55.0 F 50% 29.99 in 10.0 miles SSW 8.1 mph - N/A Mostly Cloudy
2:54 PM 77.0 F 55.9 F 48% 29.98 in 10.0 miles WSW 12.7 mph - N/A Scattered Clouds
3:54 PM 78.1 F 55.9 F 46% 29.96 in 10.0 miles SSW 9.2 mph - N/A Scattered Clouds
4:54 PM 78.1 F 57.0 F 48% 29.94 in 10.0 miles SW 11.5 mph - N/A Mostly Cloudy
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Old 08-04-2009, 07:59 AM   #14
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Did your tune include any reduction in torque management? Also, did you get rid of AFM? How much was the tune if you don't mind my asking? I have an alumni reunion at RIT in October so I may have to stop by...
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