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Custom Dodge Ram Performance Mods - Engine - 6.4 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 6.4-liter HEMI® V8 engine - 410 horsepower, 429 lb-ft of torque.


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  #1  
Old 01-11-2017, 12:01 AM
ironhayden ironhayden is offline
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Default 6.4 with hemifever tuneing

Hey is anyone running the hemi fever tune on there truck and how do you like it. Any mpg improvement and does it help the shift points. Also what tune are you running mpg booster or 87 performance. Any insight would be great
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Old 01-16-2017, 10:16 AM
theviking theviking is offline
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I'm running the HF 93 tune and the trans tuning is terrific. Probably the best part of the tune. I haven't seen any noticeable mileage improvement but in fairness the truck is leveled with 35x12.5 tires. None of which is helping the mileage any and I never tried to reinstall the stock tune to verify.
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Old 01-16-2017, 07:47 PM
ssmithcpd ssmithcpd is offline
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Quote:
Originally Posted by theviking View Post
I'm running the HF 93 tune and the trans tuning is terrific. Probably the best part of the tune. I haven't seen any noticeable mileage improvement but in fairness the truck is leveled with 35x12.5 tires. None of which is helping the mileage any and I never tried to reinstall the stock tune to verify.
Hit Sean up, he has some new updates for our tunes. I installed the updated 87 Octane NO MDS tune and it's awesome!
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Old 01-16-2017, 09:00 PM
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Quote:
Originally Posted by ssmithcpd View Post
Hit Sean up, he has some new updates for our tunes. I installed the updated 87 Octane NO MDS tune and it's awesome!


Thanks, will do that.
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Old 01-19-2017, 05:56 PM
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HF 92 with custom shift points on mine. Sean did a great job with the overall tune and the shifting is superb. He recently sent me an update to cover some CROM file upgrades provided to him by Diablosport.


Mileage improvement was small and I have yet to take a road trip with the new tune installed and without having to use winter blend fuel.
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Old 01-19-2017, 08:37 PM
2002kasner 2002kasner is offline
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So what's the overall verdict for a stock 14' worth it for the tuner? I am not outside of my 36k warranty and am debating
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Old 01-20-2017, 03:50 PM
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I think it is. It really wakes up the truck.
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Old 01-21-2017, 07:49 PM
ironhayden ironhayden is offline
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So when you buy a tunner with the hemifever tuneing on it do you get the tune for all power levels or just one and the you have to pay for every tune. Example mileage, 87,91,93
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Old 01-21-2017, 11:31 PM
2002kasner 2002kasner is offline
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Hows the torque increase?
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Old 01-22-2017, 12:20 PM
theviking theviking is offline
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Quote:
Originally Posted by ironhayden View Post
So when you buy a tunner with the hemifever tuneing on it do you get the tune for all power levels or just one and the you have to pay for every tune. Example mileage, 87,91,93


You get a tune for each power level, plus whatever else you specifically ask for. Typically they only charge extra if you need a tune for sometime very specific like a cam change or FI.
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