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Diablo preditor didnt help?

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Old Jun 14, 2007 | 09:20 PM
  #1  
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Default Diablo preditor didnt help?

I have 02 Z06 with vara-ram CAI , carbon air duct with open tube throttle body air intake. I dynoed 370RWHP and after th program Diablo I ran 365 to 368. My strongest dyno was w/o programmer. Any sugestions should I adjust the air fuel or timing with the program? Or try somthong else?
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Old Jun 14, 2007 | 09:43 PM
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Originally Posted by r2002z06
I have 02 Z06 with vara-ram CAI , carbon air duct with open tube throttle body air intake. I dynoed 370RWHP and after th program Diablo I ran 365 to 368. My strongest dyno was w/o programmer. Any sugestions should I adjust the air fuel or timing with the program? Or try somthong else?
Are these SAE and smoothed numbers? Most stock Zs dyno about 350rwhp, give or take, which you basically are. Next time you dyno have the operator plot the A/F ratio for you, so you know if an adlustment may benefit you, and make sure it's an SAE and smoothed run. 5-10 hp differences between runs are not uncommon, and, if on different days, under different ambient conditions, runs that are non-SAE, and non-smoothed to remove the high spikes, will vary by fairly large amounts. Good luck!
Ed
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Old Jun 14, 2007 | 10:08 PM
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The most out-of-the-box gains seen by the Predator are on A4's... not manual shift C5's (because of the elimination of Torque Managenemt that holds back the A4's).

You can use the Predator to make WOT AFR changes, but you'll need a wide-band sensor setup to do it properly.

By the time you've bought the Predator and the wide band setup... you have reached the price of a dyno tune (which would be more exacting than the Predator tune).

My Predator added some HP and took away a few tenths at the dragstrip... so I'm not bashing it. It's just that IMO it doesn't help uch at all on manual tranny C5's.
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Old Jun 14, 2007 | 10:21 PM
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What is SAE?
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Old Jun 14, 2007 | 10:42 PM
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Originally Posted by r2002z06
What is SAE?
It stands for Society of Automotive Engineers.

Learn more here.

Last edited by wettevette; Jun 14, 2007 at 10:45 PM.
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Old Jun 14, 2007 | 10:46 PM
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Thanks, Do you know what I should do next gain about 20hp, program or exhaust with tune.
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Old Jun 15, 2007 | 03:43 PM
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It was a SAE dyno I did it again today and did 367RWHP and adjusted the fuel a little to burn 12 AF avg. It was my best the lowest run was 357 when I adjusted timing ahead 2% non-SAE was 374. Thanks
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Old Jun 15, 2007 | 05:44 PM
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The dyno is SAE corrected - it's the same one I use in Stuart, FL.

I dynoed 2 supercharged Z06s about an hour after r2002z06 dynoed his and the numbers were fine.

Stephen
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