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First 9 second 1/4 mile pass on 93 Octane

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Old Feb 18, 2026 | 10:58 PM
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Default First 9 second 1/4 mile pass on 93 Octane

I want to send a huge shout out to Sam Ahdoot @ By Design & Simon Youngman @ Drivers Choice Motors.

I had a goal to turn my 2017 991.2 Turbo S into a 9 second 1/4 mile car while running only 93 octane pump gas and Michelin PS4S street tires.
NO METH & NO RACE GAS
Tonight the goal was achieved in Orlando in so so weather.
DA + 1250 / 72* and 70% humidity.
Mods: By Design STAGE 5 turbos, DO88 piping,Intercoolers, Intake & TUNE + a TUBI race exhaust + I have a full Dundon Motorsports suspension package on the car so it rips up the corners too
All Modifications performed at Drivers Choice Motors in Orlando.


Last edited by JASON 991.2 TTS; Feb 19, 2026 at 05:44 PM.
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Old Feb 18, 2026 | 11:47 PM
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Excellent mod combo ! Congrats !!!
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Old Feb 19, 2026 | 08:54 AM
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Very nice. Hoping to crack off some 9s on my 2017 TTS but with meth instead of bigger turbos. Already have every other bolt on possible. Stage 5 turbos will happen sooner or later, but for now the TTS turbos should hit my goals.
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Old Feb 19, 2026 | 10:34 AM
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Congrats!!!! Amazing results, and not surprised at all that Sam helped you get there! I am in south florida so very similar weather.... really wonder how you would do with Meth added to your setup. I am very close to going Stage 5 with Sam myself !!!!
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Old Feb 19, 2026 | 01:38 PM
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Hey guys… You made my evening Jason! The data looked pretty good and conditions I would say were average. I think we can tweak a little more with some ethanol blending or race fuel and build on this if you wanted. I’m really happy with the performance of the Stage5 package which is mainly achieved through efficiency. This compressor is no larger than factory. It’s all designed and technology for my friends at TiAL/Xona!


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Old Feb 20, 2026 | 07:19 PM
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Congrats!!!

Way to go with no meth or race gas, just like the way you drive on the street every day.

Awesome!
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Old Feb 20, 2026 | 07:27 PM
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Congrats!
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Old Feb 20, 2026 | 07:32 PM
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Looking good!

Last edited by Mkai0; Feb 20, 2026 at 08:04 PM. Reason: Change
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Old Feb 20, 2026 | 11:41 PM
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looks like a 10.0 to me congrats!!
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Old Feb 21, 2026 | 11:45 AM
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got any datal0gs?
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Old Feb 21, 2026 | 12:36 PM
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Originally Posted by bigrpowr
looks like a 10.0 to me congrats!!
Haha those 10.000 slips must be framed! One of our guys in the Dominican Republic yesterday…It’s very humid out there so meth is a huge help.


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Old Feb 24, 2026 | 02:38 PM
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Dang.... I'm 2 mph slower in the 1/8 and 6 mph slower in the 1/4 with a similar set up but 991.1 (and on the street). Going to have to go back to the mad scientist (Sam) for some more juice.
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Old Feb 24, 2026 | 05:09 PM
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Originally Posted by Miykl
Dang.... I'm 2 mph slower in the 1/8 and 6 mph slower in the 1/4 with a similar set up but 991.1 (and on the street). Going to have to go back to the mad scientist (Sam) for some more juice.
hey buddy. 991.2 are definitely a little quicker but something sounds off. Get me some data. Let’s take a look.
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Old Feb 24, 2026 | 06:40 PM
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Originally Posted by SamboTT@ByDesign
hey buddy. 991.2 are definitely a little quicker but something sounds off. Get me some data. Let’s take a look.
Hey Sam...remember I'm 330lbs and have the extra rolling resistance of 295/30 front tires. She's running well and tons of fun. ....that said.... If there's more to be had I won't turn it down. 🙌😁🤠
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Old Feb 24, 2026 | 08:12 PM
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Haha I thought it was you. We made some good improvements so far. Always here to keep going!
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