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11.100 pass @ 123.17 mph today

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Old 10-13-2023, 07:56 PM
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BJ67
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Default 11.100 pass @ 123.17 mph today

Base 1LT, non Z51, non NPP, factory all seasons at 25 PSI rear, 41 PSI fronts, front sway bar unhooked at the links, attack blue air filter and E30 fuel. Late in the afternoon, maybe 1000 DA with a 8mph headwind. No tune, no weight removal, no headers, factory cats etc, etc.
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Old 10-13-2023, 08:59 PM
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Fore58
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That's a nice pass with great trap speed. I should be going back to the drag strip pretty soon. I have the ported intake manifold, 87mm ported throttle body and the Halltech Cold Air Intake. What was the temperature?
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Old 10-13-2023, 09:01 PM
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Originally Posted by Fore58
That's a nice pass with great trap speed. I should be going back to the drag strip pretty soon. I have the ported intake manifold, 87mm ported throttle body and the Halltech Cold Air Intake. What was the temperature?
Thank you, it was about 58 degrees
Old 10-14-2023, 08:15 AM
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Originally Posted by Fore58
That's a nice pass with great trap speed. I should be going back to the drag strip pretty soon. I have the ported intake manifold, 87mm ported throttle body and the Halltech Cold Air Intake. What was the temperature?
Good luck on your next pass, let us know how you do.
Old 10-14-2023, 08:27 AM
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I will good or bad.
Old 10-14-2023, 10:14 AM
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That’s moving out pretty good 😎
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Old 10-14-2023, 02:42 PM
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I feel like you can get into the 10s with some lightweight wheels and tires. The stock stuff are boat anchors.
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Old 10-14-2023, 03:32 PM
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Originally Posted by combatninja
I feel like you can get into the 10s with some lightweight wheels and tires. The stock stuff are boat anchors.
It may be possible with a full drag pack which would include light front skinnies
Old 10-17-2023, 06:04 PM
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Pretty great run you had. This is the best I've gotten back to back runs. I'm completely stock Z51 2LT 91 non ethanol and air temp was about 60. This winter I'm putting on Paragon track exhaust, throttle body, air filter and may get some drag radials.
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Old 10-17-2023, 06:28 PM
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Originally Posted by mortelec
Pretty great run you had. This is the best I've gotten back to back runs. I'm completely stock Z51 2LT 91 non ethanol and air temp was about 60. This winter I'm putting on Paragon track exhaust, throttle body, air filter and may get some drag radials.
E0 is hurting you, your engine is likely knocking and pulling timing like crazy.

E10 89 will typically outperform E0 91.

I'm not saying you should run 89, I'm just saying that's how badly E0 91 sucks.
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Old 10-17-2023, 06:40 PM
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Originally Posted by mortelec
Pretty great run you had. This is the best I've gotten back to back runs. I'm completely stock Z51 2LT 91 non ethanol and air temp was about 60. This winter I'm putting on Paragon track exhaust, throttle body, air filter and may get some drag radials.
Thank you for the kind words.. On your pass I would have expected a higher trap speed on a 60 degree day. Are you running in high altitude? Trap speed is a good indicator of horsepower levels considering the curb weight of our cars are less than 50 lbs apart. I ran with only 5 gallons of fuel in the tank, saving about 80 lbs along with another 10-15 lbs of odds and ends Add the curb weight difference and I ran close to 150 lbs lighter than your car with a full tank of gas. Hope that helps and good luck.
Old 10-17-2023, 06:46 PM
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Originally Posted by Kracka
E0 is hurting you, your engine is likely knocking and pulling timing like crazy.

E10 89 will typically outperform E0 91.

I'm not saying you should run 89, I'm just saying that's how badly E0 91 sucks.
91 and 93 around here supposedly has ethanol in it. I know for a fact the local 93 shows 8 to 10 percent ethanol.
Old 10-17-2023, 07:04 PM
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Originally Posted by Kracka
E0 is hurting you, your engine is likely knocking and pulling timing like crazy.

E10 89 will typically outperform E0 91.

I'm not saying you should run 89, I'm just saying that's how badly E0 91 sucks.
I'm in Minnesota and in lakes country that has a lot of non ethanol 91. I run that in all my seasonal things because you never know when your season may end. In the past when I've let ethanol fuel sit for several months it haunts me.
Old 10-17-2023, 07:06 PM
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Originally Posted by BJ67
Thank you for the kind words.. On your pass I would have expected a higher trap speed on a 60 degree day. Are you running in high altitude? Trap speed is a good indicator of horsepower levels considering the curb weight of our cars are less than 50 lbs apart. I ran with only 5 gallons of fuel in the tank, saving about 80 lbs along with another 10-15 lbs of odds and ends Add the curb weight difference and I ran close to 150 lbs lighter than your car with a full tank of gas. Hope that helps and good luck.
I'm in Minnesota and probably around 1200' elevation. Unfortunately that day at the track I had 3/4 of a tank of fuel. I've actually thought of pulling the passenger seat next summer after my other bolt ons just to see how much weight is affecting me.
Old 10-17-2023, 07:20 PM
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And here are my two separate runs.
Old 10-17-2023, 08:26 PM
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Originally Posted by Fore58

And here are my two separate runs.
What did you have for mods?
Old 10-17-2023, 08:32 PM
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Originally Posted by Kracka
E0 is hurting you, your engine is likely knocking and pulling timing like crazy.

E10 89 will typically outperform E0 91.

I'm not saying you should run 89, I'm just saying that's how badly E0 91 sucks.
That makes sense as E15 88 octane made the 12:1 5.0 in my old F150 knock less and runs better in my Ecoboost Expedition, which they give it another point of octane for only 5% more ethanol than E10 87 octane. I wonder if E30 is around 100 octane as E85 is supposed to be ~106 no?

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Old 10-17-2023, 08:34 PM
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Originally Posted by mortelec
I'm in Minnesota and probably around 1200' elevation. Unfortunately that day at the track I had 3/4 of a tank of fuel. I've actually thought of pulling the passenger seat next summer after my other bolt ons just to see how much weight is affecting me.
So a 60 degree day, the DA could be around 1700. That would have a little negative affect on Horsepower, but nothing crazy imo.
Old 10-17-2023, 08:57 PM
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Originally Posted by mortelec
What did you have for mods?
87mm ported throttle body, attack blue filter and ported intake manifold.

I now have the Halltech Cold Air Intake. Just waiting for somewhat better DA down here in southwest Florida Thursdays test and tune.
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Old 10-17-2023, 10:41 PM
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Originally Posted by mortelec
I'm in Minnesota and in lakes country that has a lot of non ethanol 91. I run that in all my seasonal things because you never know when your season may end. In the past when I've let ethanol fuel sit for several months it haunts me.
Born & raised up there and still visit multiple times per year... Add a few gallons of E85 to your tank and you'll be amazed how strong the car pulls. Ethanol sitting for a few months won't hurt a thing; cheap gas without proper additives will though. That "boat gas" is garbage; I'm telling you that as someone in the fuels industry.


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