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Old 03-13-2007, 09:15 AM
  #131
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Excellent test data and test method to insure effects of engine compartment air temperature at flame arrestor versus the general ambient air temperature that these weather stations usually are reading is accounted for. That 10% drive loss hp answers a lot of questions for me.
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Old 03-21-2007, 07:41 AM
  #132
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Anything new? Is the testing still going to happen?
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Old 03-21-2007, 09:13 AM
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Originally Posted by Bill 3 View Post
Anything new? Is the testing still going to happen?
It's currently in process. You should have some finite answers soon
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Old 03-24-2007, 10:27 PM
  #134
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anymore new test information ?
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Old 03-24-2007, 11:49 PM
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Should have some definite numbers this week. Still waiting on a set of risers from Dana.
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Old 04-11-2007, 08:00 PM
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It's been about 3 weeks. Any results yet?
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Old 04-23-2007, 10:01 AM
  #137
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Old 04-28-2007, 11:32 AM
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Default octane

It's surprising to me that all the "experts" here (I'm not talking to you professionals) don't know, that high octane fuel is less volatile than lower octane fuels. HIGH octane fuel has a more controlled conflagration rate (it burns slower) than lower octane fuels. Low octane fuel is more volatile and and less controllable than high octane fuel. The reason you get detonation problems from low octane fuel, is from an uncontrolled burn AKA pre ignition!! (the fuel starts to burn under compression or a spark /hot spot in the cylinder ) HIGH octane fuel "burns slower and is less volatile", so you can more precisely determine the "EXPLOSION" point of the fuel in the combustion chamber.

Last edited by Little girl; 04-28-2007 at 11:37 AM.
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Old 04-28-2007, 08:23 PM
  #139
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Quote:
It's surprising to me that all the "experts" here (I'm not talking to you professionals) don't know, that high octane fuel is less volatile than lower octane fuels. HIGH octane fuel has a more controlled conflagration rate (it burns slower) than lower octane fuels. Low octane fuel is more volatile and and less controllable than high octane fuel. The reason you get detonation problems from low octane fuel, is from an uncontrolled burn AKA pre ignition!! (the fuel starts to burn under compression or a spark /hot spot in the cylinder ) HIGH octane fuel "burns slower and is less volatile", so you can more precisely determine the "EXPLOSION" point of the fuel in the combustion chamber.
You are quite estute & knowledgable for a "little girl"..


You would also be correct Jamie / Lakeside
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Old 05-01-2007, 11:07 PM
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Enough of the Chit chat.. Time for some noise... :yes: :eek!: :bonk: ...

Here is a clip of the Dana exhaust we installed on a clients boat.
Undertaker's new Dana 496 Exhaust running on the hose(click here)

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