My Gen 2 Street/Sleeper/Hellion build.

[armani5.0]

With your T56 plus your hellion headers were you able to fit your 02 sensor in the holes? We couldn’t clear mine due to the t56 bell housing so we drilled new holes and moved 02’s but car isn’t running good now after doing so.

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[DunkinDomnuts]

With your T56 plus your hellion headers were you able to fit your 02 sensor in the holes? We couldn’t clear mine due to the t56 bell housing so we drilled new holes and moved 02’s but car isn’t running good now after doing so.

I plugged the O2 bungs in the hellion manifolds, mounted the primary 02 sensors post turbo in the down pipes and I deleted the secondary 02 sensors as I’m not running any cats.

 

[armani5.0]

I plugged the O2 bungs in the hellion manifolds, mounted the primary 02 sensors post turbo in the down pipes and I deleted the secondary 02 sensors as I’m not running any cats.

Okay awesome thanks! I will do that instead and hopefully that solves my idle problem.

 

[DunkinDomnuts]

Hello all, been awhile since I’ve been on here so figured I’d post up an update on the car. My cars setup hasn’t changed, currently running wastegate pressure around 9.5psi-10psi and pushed 708whp on pump 93. Car has been an absolute blast and I’ve been competing in Pocono raceway Racemotive the past two years. I run pretty consistent 153-154mph with my current setup on pump gas with my wife riding passenger and little to no weight reduction. I drive the car regularly and overall it drives like stock when not in boost. Really couldn’t be happier with the set up so far.
For comparison most stock hellcats run about 139-141 mph at pocono raceway 1/3rd mile.

 

[Timbuck]

Just bumping this TT build , I need a POV video of this driving thought the mountains , windows down , turbo spooling what a great way to spend a Sunday taking the wife for lunch 2 hrs away… well that’s what I’d be doing haha. Dreaming of the day I have 2 wuhan whistles on mine.

 

[DunkinDomnuts]

Appreciate the bump, car still going strong really enjoying my turbo setup. Placed 2nd in my bracket in the 2025 OCt 4 Racemotive season finale last year with my wife riding passenger. Ran my fastest 1/3 mile speed of 156.47 on 12psi on 93 pump gas with a little Sunoco Gt 260 mixed in. Competing in the Racemotive July 12th event and OCT 4th fall finale for the 2026 season.
This year I would like to crank it up to 14psi and have to make the decision to go Meth or ethanol. My goal is to crack a valid 160mph pass this year driving too and home from the event too. Still want to keep it a street car to take the wife on canyon runs, date night and occasional cars a coffee meets. When I get the car out this year I’ll take some videos as requested the t51r compressor inlets are def worth the money. Turbos sound like a 747 taking off when they spool. Very dramatic but that’s half the fun.

 

[DunkinDomnuts]

Here’s a video someone posted of my car at the 2025 racemotive finale. I let out a little early so my mph wasnt the best but still cool to play with a 720s what an amazing machine. I Was pretty excited to race some exotics and wanted to impress the wife so I def got the hit on the 720s on this pass. But the stock 720s ran consistent 156-157mph passes that day and I was running about the same on a good pass. So it was really who got the hit wins.

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