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Another completed DeMan 4.5L 718 - Impression/review!

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Old 01-05-2023, 12:26 AM
  #286  
UncleDude
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Originally Posted by JAhmed
@UncleDude Looking forward to watching the video as it’s too salty in Illinois to drive mine
I’m looking forward to it too. He’s going to have a huge grin on his face! Do you know which exhaust he’s running? I think I read DeMan offers some choice.
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Old 01-05-2023, 12:31 AM
  #287  
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Originally Posted by UncleDude
I’m looking forward to it too. He’s going to have a huge grin on his face! Do you know which exhaust he’s running? I think I read DeMan offers some choice.
I believe Fabspeed headers + stock rear section. Not sure about his OAP situation.
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Old 01-05-2023, 08:26 AM
  #288  
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OAP and headers are both Fabspeed - same as mine (although his might not have CATs .. mine are catted) - my connects to factory OEM Porsche PSE.
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Old 01-05-2023, 11:33 AM
  #289  
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Originally Posted by UncleDude
I’m looking forward to it too. He’s going to have a huge grin on his face! Do you know which exhaust he’s running? I think I read DeMan offers some choice.
Originally Posted by JAhmed
I believe Fabspeed headers + stock rear section. Not sure about his OAP situation.
Matt's Spyder has Fabspeed headers, Hi-Flow cats and mid-pipe connected to the stock factory muffler.
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Old 01-05-2023, 12:31 PM
  #290  
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@Rick DeMan A point of interest, I've seen Matt F reference using an octane booster to run 100 octane in your engine.
Is that the only option, or do you have a 93 map too?
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Old 01-05-2023, 12:46 PM
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Originally Posted by DFW01TT
@Rick DeMan A point of interest, I've seen Matt F reference using an octane booster to run 100 octane in your engine.
Is that the only option, or do you have a 93 map too?

Requirement is 98 Octane.

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Old 01-05-2023, 12:55 PM
  #292  
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Originally Posted by Rick DeMan
Requirement is 98 Octane.
Just for Matt's engine?

I recall a post from you that implied you could tune for east coast cars at 93 octane, and west coast at 91 octane, is this still not the case? Given that HP will be different as a result.

***EDIT*** Back at post #67 the octane discussion began and was summarized (at that time) in post #80 and 81
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Old 01-05-2023, 12:56 PM
  #293  
colnagoG60
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FWIW, Matt talks a little bit more about his car in latest podcast. Also learned why I'm hearing a knock in my 981, and how its a "feature"..few other interesting Porsche tidbits in here as well:


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Old 01-05-2023, 03:29 PM
  #294  
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Ugh this thread taunts me. I'm going to use the 3 years or warranty to improve my driving and merit spending money on this.
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Old 01-05-2023, 05:01 PM
  #295  
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Originally Posted by Westcoast
Just for Matt's engine?

I recall a post from you that implied you could tune for east coast cars at 93 octane, and west coast at 91 octane, is this still not the case? Given that HP will be different as a result.

***EDIT*** Back at post #67 the octane discussion began and was summarized (at that time) in post #80 and 81
Agreed,

I remember reading as well that the 718 cars could be used on east cost 93 octane from the pump with no additional additive..... Is this still the case?
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Old 01-05-2023, 09:20 PM
  #296  
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As Rick stated above - "Requirement is 98 Octane"
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Old 01-05-2023, 11:03 PM
  #297  
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98 octane is the easy part, the $60k or so for the engine and gears is what I have trouble finding.
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Old 01-05-2023, 11:08 PM
  #298  
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Originally Posted by SLATETT
As Rick stated above - "Requirement is 98 Octane"
So something has changed since post #81, partial quote below:

ALL 718 cars are tuned on 93 east coast octane. West coast cars are tuned for 91
The 981 cars are tuned for 93 east coast fuel with boostane. They can be run on 93, but for any of the conditions stated above they need more octane. We have a tune to run the 91/93 by itself for the west coast guys.
Switching tunes for different octane has proven to be a bad idea, as good as you all say you will be about it, it never works out that way.
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Old 01-06-2023, 12:31 AM
  #299  
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Just doing the short gears seems like a good value here compared to the full 4.5
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Old 01-06-2023, 12:39 AM
  #300  
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Originally Posted by chapmans
Just doing the short gears seems like a good value here compared to the full 4.5
Gears alone wake the car up, but the motor transforms the car altogether. I’ve had both setups.
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