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Dyno of my G37s after FI Catback & HFC

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Old 04-25-2008 | 02:12 PM
  #16  
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Originally Posted by Kidcane
So that is flywheel power not whp? If you only got 17 at the flywheel you loose about 18-20% to the wheel so that would mean only about 14 to the wheel. Better than nothing but still not huge. Unless I am reading this wrong.
That can't be flywheel HP. He didn't do an engine dyno did he? I'm pretty sure thats at the wheels, I'll have to check the vid and see if it shows him on a chassis dyno.

Last edited by AZg37; 04-25-2008 at 02:17 PM.
Old 04-25-2008 | 02:41 PM
  #17  
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the gains are at the wheels. Don't look at the overall numbers, just look in the change between numbers.

If he dyno'd 270whp, he'd gain 20whp and be at 290whp or whatever...
Old 04-25-2008 | 02:55 PM
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OK good. The top of the first pick on the screen says "flywheel", thats why I thought that.
Old 04-25-2008 | 02:58 PM
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Nice numbers man...
Old 04-25-2008 | 03:22 PM
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Originally Posted by CrazyRuskie
^^ The type of dyno doesn't matter. What matters is it was done on the same one, therefore he picked up that amount of power regardless of how you look at it.
I understand. I agree that the gains are very good. I'm not wondering because of the gains, I'm just wondering what dyno would rate a stock G37 at ~300hp to the wheels...
Old 04-25-2008 | 03:42 PM
  #21  
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its not to uncommon as long as its NOT a mustang... Sad part with these mods a sedan will STILL take you... PM me if you guys want details
Old 04-25-2008 | 06:01 PM
  #22  
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Originally Posted by TerribleONE453
its not to uncommon as long as its NOT a mustang... Sad part with these mods a sedan will STILL take you... PM me if you guys want details

Details pm'd my way please...
Old 04-25-2008 | 08:35 PM
  #23  
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chuch's uses a dynapck..it runs on the hubs not on rollers...great for consistency...i see 16 hp peak to the hub...not bad for from hi flow cats and the FI exhaust...headers and a tune would be great.
Old 04-25-2008 | 09:06 PM
  #24  
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Originally Posted by cvt
and a tune would be great.
Thats the key to unlocking a lot of untapped power. If anyone could crack it under $3k. We'd all be set haha
Old 04-26-2008 | 06:48 AM
  #25  
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Originally Posted by NemesisG37
what was the average hp & tq increase?
....?
Old 04-27-2008 | 11:28 AM
  #26  
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WOW those were some nice gains.

You never hang out below 3K anyway. Almost as soon as you are on the gas you are at 3K.
Old 04-28-2008 | 02:21 PM
  #27  
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What is the rule for % loss from flywheel HP to WHP? Just curious as to what he would tell the "average" person on his total HP setup...Lord knows that 90% of the people I talk to have NO IDEA what I mean by wheel horsepower and the importance of that number over flywheel...
Old 04-28-2008 | 02:23 PM
  #28  
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x it by 15-18%
Old 04-28-2008 | 02:25 PM
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yeah, peoples opinions differ, but general rule is you lose anywhere from about 13-18 percent of the flywheel HP at the wheels
Old 04-28-2008 | 08:44 PM
  #30  
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Thats flywheel numbers not WHP, Dynapack dynos always read flywheel HP unless you adjust the TCF, this TCF is at 1.00 meaning no correction was applied for drivetrain loss.


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