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11-08-2009
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#1 |
  
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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Dom...Byron results???
So...Do tell how Byron datalogging went yesterday! (I couldn't get away in time to make the trip [sigh]).
P.
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Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry |
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11-08-2009
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#2 |
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,152
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Re: Dom...Byron results???
Yeah?? how did it go?
You ready to port the heads now for more power??? paul, good seeing you for lunch on Friday..
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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11-08-2009
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#3 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,697
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Re: Dom...Byron results???
Quote:
I think there's more "bang for the buck" with new tires and a new driver. The trap speeds are indicative of a low 12 car right now without heads but a 2.3 60' isn't going to get there. Not to mention 2nd gear. |
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11-08-2009
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#4 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,697
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Re: Dom...Byron results???
Quote:
It was a beautiful day with few drivers out there. I'd already done 5-6 runs by noon. But the launch was more like "budda". Lousy 60". My best time came with tires at 29.5psi, 2.1 60", a 12.9 x 117.26mph. I will say there was a headwind today at Byron. The track faces south and that's where the wind was coming from which provided the 72d temps. DA corrected times were in the 12.6 @ 119+mph. I was able to datalog one run. Looks like there's run to lean things out a bit. Little to no knock retard. |
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11-09-2009
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#5 | |
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Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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Re: Dom...Byron results???
Quote:
P.
__________________
Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry |
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11-09-2009
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#6 |
Join Date: Sep 2006
Location: lone pine and mammoth lakes
Posts: 1,407
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Re: Dom...Byron results???
when corey tuned my car we found that we made the most power @12.8. and 26.5 total timing. but we tuned my car on 91 oct as that is all we have out my way
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11-09-2009
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#7 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,697
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Re: Dom...Byron results???
Quote:
I think the idea is to be a bit rich at torque peak since this is the most likely area where you'll experience knock retard, then lean it out as you head to top end. I would not go any leaner than 13.1 for the top. Yes I did datalog a run this Saturday, and the AFR looked a bit fat. I had little to no knock retard so I could lean it out a bit and/or try some additional timing. |
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11-09-2009
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#8 | |
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Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,697
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Re: Dom...Byron results???
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The 91 octane would cause the lower advance. Having seen other Corey cals, he's more aggressive than that |
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