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Wrapped up day 1 here in Dallas...bone stock numbers!
She was hauling but so was the tail wind (about 35 degrees off center but pretty strong/consistent). I don't know that it would run these numbers in calm conditions).
Last edited by trevorlj; 04-15-2018 at 10:18 PM.
Reason: Fixing screenshots
157 seems a bit high for 1/2 speed for a stock car, isn't it?? I was thinking those cars were mid-high 140's at the real events.
His car is right on the money for a Turbo S, looking at the 1/4 mile trap. My 991.2 trapped 135.99 best in the 1/4 and multiple 133-134 and goes out the other end around 162-164mph from what I have seen. So his numbers are pretty typical of the 991.1 numbers I've seen. I did months of looking at this stuff to plan buying the car, then planning modifications.
His car is right on the money for a Turbo S, looking at the 1/4 mile trap. My 991.2 trapped 135.99 best in the 1/4 and multiple 133-134 and goes out the other end around 162-164mph from what I have seen. So his numbers are pretty typical of the 991.1 numbers I've seen. I did months of looking at this stuff to plan buying the car, then planning modifications.
Good to know. I thought I'd just seen some hight 140's for stock turbos in the 1/2... Maybe I was getting confused with older Turbos. Sorry.
A 991.1 Turbo S is on my bucket list, so I love seeing the higher mph!! Congrats!!
Density altitude, wind direction and slope play a huge difference. Try running at shift sector on a 95 degree day with a headwind. You wont see 150 on a stock 991.1. Stars were aligned at WGF in Dallas last weekend.
Density altitude, wind direction and slope play a huge difference. Try running at shift sector on a 95 degree day with a headwind. You wont see 150 on a stock 991.1. Stars were aligned at WGF in Dallas last weekend.
Agreed on the wind...there's a reason I mentioned it. It's also just the luck of the draw (and from your tone it sounds like you and a headwind are old friends). While I'm sure it was giving me a healthy push it was also pushing my car around. People were commenting that they needed to constantly correct at speed and steer (slightly) into the wind to go straight.
DA wise it's a forced induction car...yes it plays into the pressure ratio (charge air temps & turbine inlet pressure) but it doesn't have quite the direct effect that as an NA car. DA is barely a factor with turbo cars until you're talking thousands of feet and even then it's mostly an issue with boost threshold, spool, and max attainable boost if you're trying to get everything out of a setup.
And slope? You mean the GPS-verified 16' drop over a 1/2 mile there? I'm sure that helped a little but I wouldn't call it a "huge difference".
As impossible as it may seem to you the slips are in front of me. <shrug>
Agreed on the wind...there's a reason I mentioned it. It's also just the luck of the draw (and from your tone it sounds like you and a headwind are old friends). While I'm sure it was giving me a healthy push it was also pushing my car around. People were commenting that they needed to constantly correct at speed and steer (slightly) into the wind to go straight.
DA wise it's a forced induction car...yes it plays into the pressure ratio (charge air temps & turbine inlet pressure) but it doesn't have quite the direct effect that as an NA car. DA is barely a factor with turbo cars until you're talking thousands of feet and even then it's mostly an issue with boost threshold, spool, and max attainable boost if you're trying to get everything out of a setup.
And slope? You mean the GPS-verified 16' drop over a 1/2 mile there? I'm sure that helped a little but I wouldn't call it a "huge difference".
As impossible as it may seem to you the slips are in front of me. <shrug>
Hey nice results, i was responding to others who thought this result was sort of too good. But a lot goes into the result and clearly conditions were great for half mile results. Even your 1/4 mile mph at 130 shows that conditions were good because in high DA I've seen them (stock 991.1 TTS) go 125's. The event also allowed the US record broken for a 991.1 at a verified 178.4mph on one of AIM's cars. Basically my tone was sheer jealously because I cant seem get these conditions at our California events! Haha.
04-14-2018, 10:44 PM
Stock 991.1 Turbo S 1/2 Mile Results
