HemiFever 93 Octane Tune - WOW! - Dodge Challenger Forum: Challenger & SRT8 Forums
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post #1 of 19 (permalink) Old 05-21-2019, 05:41 PM Thread Starter
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HemiFever 93 Octane Tune - WOW!

Big thanks to Sean for sending me his 93 Tune for my stock 2012 SRT8.
Car feels 10x better. Wasn't impressed with the Diablo 91 and 93 canned tunes. They were sluggish and clumsy compared to his. Car is alive now.
Car shifts, performs and feels way more stout than stock. My lazy A5 feels like a performance transmission now. I don't know how much HP I gained but it definitely feels stronger.
He responds quickly and in two days I went from"meh" to thrilled.
Highly recommend his tuning capabilities - you won't be disappointed.

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post #2 of 19 (permalink) Old 05-21-2019, 06:04 PM
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Yep, Sean has great tunes indeed. He did a 91 tune for my '10 R/T A5, and it was a strong runner.

Great guy to work with too.


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The Past: 2010 Detonator Yellow R/T "Classic" RIP Old Buddy 6/4/15

The Present: 2016 R/T Scat Pack. Factory Options: B5 Blue, 24G Package(A8), WRT Wheels, and Modern R/T Hood Stripe. Engine HP Mods: None Needed. HC Air Box/Tube; DIPs Screen; BT Catch Can; Mopar front Brace;"TA" style side stripes; Mopar '10 Center Caps
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post #3 of 19 (permalink) Old 05-21-2019, 06:17 PM
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Have heard nothing but good things about Hemifever! Can't go wrong with him!


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Living my life....one quarter mile at a time
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post #4 of 19 (permalink) Old 05-21-2019, 09:04 PM
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Had a Hemifever Tune on my Ram 1500, was very happy with it.

2010 Challenger SRT8 M6: TorRed, Barton (skip shift+), Mopar Performance Long Ram CAI and Exhaust Tips, Fastman TB mod, Speedlogix Strut Tower Brace (front and rear), Brass Monkey Wheels (clones), Arrington Catch Can, 30% Tint (doubles the hp)
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post #5 of 19 (permalink) Old 05-22-2019, 10:13 AM
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I used to run Hemifever tunes as well, definitely wakes the car up! I use Jay Greene now, his tunes are great as well. A custom tune is much better than the canned Diablo tunes, I never thought they were that great. The 392's typically pick up 20-25hp and the 5.7L's pick up a little more like 30hp, so I've heard from a few different tuners. Another big factor in changing how the car feels is the removal of torque management, which kills some of the power that would normally go to the wheels even in stock form.

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post #6 of 19 (permalink) Old 05-22-2019, 10:44 AM
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I used to run Hemifever tunes as well, definitely wakes the car up! I use Jay Greene now, his tunes are great as well. A custom tune is much better than the canned Diablo tunes, I never thought they were that great. The 392's typically pick up 20-25hp and the 5.7L's pick up a little more like 30hp, so I've heard from a few different tuners. Another big factor in changing how the car feels is the removal of torque management, which kills some of the power that would normally go to the wheels even in stock form.
Yep, the torque management change was substantial on my A5 5.7. It finally felt like a 400HP V8 should feel like.
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post #7 of 19 (permalink) Old 05-22-2019, 11:36 AM
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Yep, Sean has great tunes indeed. He did a 91 tune for my '10 R/T A5, and it was a strong runner.

Great guy to work with too.

You didn't by chance keep that tune when the car left did you??

'10 Challenger R/T Classic
Flowmaster Force II cat back, K&N branded CAI with Amsoil dry synthetic filter, Diablo Predator 91 CAI tune,
Mopar '11+ IAT sensor, Mopar hood struts, RPI stealth guards, R/T spoiler emblem



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post #8 of 19 (permalink) Old 05-22-2019, 11:43 AM
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Quote:
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Yep, Sean has great tunes indeed. He did a 91 tune for my '10 R/T A5, and it was a strong runner.

Great guy to work with too.

You didn't by chance keep that tune when the car left did you??
Well the handheld was in the trunk, and under water in the spare tire well. The tune was still installed as the tow company took her away.
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post #9 of 19 (permalink) Old 05-22-2019, 12:15 PM
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Well the handheld was in the trunk, and under water in the spare tire well. The tune was still installed as the tow company took her away.

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post #10 of 19 (permalink) Old 05-22-2019, 01:06 PM
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Ol' Yeller was one heck of a car to me. There's days that I still shake my head about its' demise.

But, life goes on with a ton of good memories with it.
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