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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #1  
Old 11-09-2012, 03:17 PM
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TheBlackHemi TheBlackHemi is offline
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Default Just dyno'd my 2011 Ram...Stock tune vs HemiFever's Tune

I knew there were some pretty big gains I felt when I was data logging for Hemifever to get my custom tune just right....this just reconfirms what I was seeing from the logs....HemiFever is the man when it comes to e-mailed tunes

Pulls were in 85degree weather and 24% humidity


I must say these newer Dodge rams are hard to dyno espically if you have a Torque Converter...I wanna say I probably went through close to 15 pulls because even on the stock tune it just wanted to pull pretty funny on the top end maybe because it was just on the rollers vs the street. After talking to HemiFever (Sean) he told me something about a short runner valve that opens on the top end that usually makes late model dodges hard to dyno.... He might need to chime in to explain it a little more. I do have a couple of vids but I'm sure I those wont go up until tomorrow (gotta go to work tonight). Next up will be some track time's (maybe in 2 weeks) on these 22" wheels....depending on what I run/traction I might just buy some 17s or 18s with DRs for the rear.
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  #2  
Old 11-09-2012, 03:40 PM
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Dam just about 66 hp increase with a simple bolt ons that you have.. His tuning is amazing.. I can't wait to get my 12 tuned by him. That kind of power in a reg cab. Would be awesome. So you have. A 0to60 bud at all
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  #3  
Old 11-09-2012, 04:00 PM
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a stock run done at 40,000 miles with the 5 speed trans





nice increases with the tune
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  #4  
Old 11-09-2012, 04:36 PM
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My best stock run didn't get saved it was around 315hp/320tq (saw it in the first couple vids I took)....I did noticed on the stock tune I was running pretty rich (low to mid 11s) and with HemiFever's tune I had an a/f ratio of 12-12.2. I guess with the stock tune the computer can't adjust the A/F ratio properly without tuning with this many bolt-ons which I'm sure ended up hurting my baseline stock tune numbers. It's pretty impressive what HemiFever can do to optimize the tune to fit your truck vs a canned tune made for everyone.
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  #5  
Old 11-09-2012, 05:03 PM
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WOW!! very nice. i cant wait to throw some more mods on my truck and call Hemifever for a tune
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  #6  
Old 11-09-2012, 05:49 PM
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Vids!!! Vids!!!! Vids!!!!!
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  #7  
Old 11-09-2012, 07:53 PM
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A few thoughts, ideas and questions: How are these rigs dynoing at just 31X? A 390HP should hit 325 to 330 on a regular (non-mustang) machine. So, WTF?

Next, ain't no way you got 66 HP just from a tune. Nope. Did you dyno the set up before the tune, all mods in? The tune must have opened the door for the already existing ponies that your PCM locked down. I would hate for people here to think, and for Hemifever to have to replicate on a stock engine, a 66 rwhp gain. What Hemifever HAS done though is unlock a boatload of power, MIA due to your stock parameters. For that, mucho kuddos to him.

Finally, the valve you speak of explains why I feel a rush of power 3 to 5 seconds after I have already throttled it. It is almost like a small amount of turbo lag. Does the tuner give you control of this valve?
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Old 11-09-2012, 08:02 PM
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Quote:
Originally Posted by Real Estate Man View Post
A few thoughts, ideas and questions: How are these rigs dynoing at just 31X? A 390HP should hit 325 to 330 on a regular (non-mustang) machine. So, WTF?

Next, ain't no way you got 66 HP just from a tune. Nope. Did you dyno the set up before the tune, all mods in? The tune must have opened the door for the already existing ponies that your PCM locked down. I would hate for people here to think, and for Hemifever to have to replicate on a stock engine, a 66 rwhp gain. What Hemifever HAS done though is unlock a boatload of power, MIA due to your stock parameters. For that, mucho kuddos to him.

Finally, the valve you speak of explains why I feel a rush of power 3 to 5 seconds after I have already throttled it. It is almost like a small amount of turbo lag. Does the tuner give you control of this valve?
Look at his mods, its not just a tuner.
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  #9  
Old 11-09-2012, 08:43 PM
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Quote:
Originally Posted by TheBlackHemi View Post
I knew there were some pretty big gains I felt when I was data logging for Hemifever to get my custom tune just right....this just reconfirms what I was seeing from the logs....HemiFever is the man when it comes to e-mailed tunes

Pulls were in 85degree weather and 24% humidity


I must say these newer Dodge rams are hard to dyno espically if you have a Torque Converter...I wanna say I probably went through close to 15 pulls because even on the stock tune it just wanted to pull pretty funny on the top end maybe because it was just on the rollers vs the street. After talking to HemiFever (Sean) he told me something about a short runner valve that opens on the top end that usually makes late model dodges hard to dyno.... He might need to chime in to explain it a little more. I do have a couple of vids but I'm sure I those wont go up until tomorrow (gotta go to work tonight). Next up will be some track time's (maybe in 2 weeks) on these 22" wheels....depending on what I run/traction I might just buy some 17s or 18s with DRs for the rear.

GREAT INFO!!! I wish every thread was this good.
back to back dyno results with all of the details...

rep points for sure.
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  #10  
Old 11-09-2012, 09:40 PM
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Man o Man The Black Hemi! 370.55 horsepower! That is way too cool for just having the bolt-ons that you do plus the custom tune bud! Man I am sold!
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