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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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  #11  
Old 10-08-2013, 03:00 PM
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MOST dyno places don't correct your horsepower, so if its a hot humid day the numbers will be lower than if its a cool dry day. Same thing with elevation, if you are up in the mountains numbers will be lower. I'm surprised the numbers aren't higher for the trucks. It seems like the numbers I see for Challengers bone stock are in the 320 hp range.
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  #12  
Old 10-08-2013, 04:25 PM
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Quote:
Originally Posted by Asur View Post
This 2011 got 306rwhp and 331rwtq completely bone stock



This 2011 got 318rwhp and 334rwtq and not stock it had a K&N CAI, Dynatech Supermaxx LT headers w/ Magnaflow Cats, FM 50HD dual out exhaust and stock 3.55 gears



2010 all stock, Ripp says the test they get out of this 2010 will be basically the same for 09-11

once the engine gets hot the RWHP falls from 290 down to around 267.

OP wants info on his 2011, says he got 265 which coincides with this information from RIPP

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Originally Posted by roo View Post
Asur I think you nailed the heat related loss, heat soak is pretty bad with these new HEMIS. So many variables with just 1 dyno run.
Exactly

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Originally Posted by dodge man View Post
MOST dyno places don't correct your horsepower, so if its a hot humid day the numbers will be lower than if its a cool dry day. Same thing with elevation, if you are up in the mountains numbers will be lower. I'm surprised the numbers aren't higher for the trucks. It seems like the numbers I see for Challengers bone stock are in the 320 hp range.
Is that a cold dyno run or after 5 or 6, (simulating duration driving and heat soak). We use a DynoDynamics AWD dyno, (eddy current type).

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  #13  
Old 10-08-2013, 10:40 PM
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Well thank you everybody for your awsers!After my modifications,here my numbers!That is!Comp cam,Cai K&N,Lt ARH headers,Magnaflow exhaust,Diablo Programmer!Its 317HP and 342Ft-lb at the rear wheels!According to my guy of the speedshop!The real numbers at the crank would be 453Hp and 488Ft-lb!Is it exact?
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  #14  
Old 10-09-2013, 12:23 AM
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It does, but it can!
Just because it can, does it?
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  #15  
Old 10-09-2013, 09:15 AM
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Quote:
Originally Posted by Vilaingarnement1 View Post
Well thank you everybody for your awsers!After my modifications,here my numbers!That is!Comp cam,Cai K&N,Lt ARH headers,Magnaflow exhaust,Diablo Programmer!Its 317HP and 342Ft-lb at the rear wheels!According to my guy of the speedshop!The real numbers at the crank would be 453Hp and 488Ft-lb!Is it exact?

I would probably say at the crank you might be around 435, For 453 is a bit high for my thoughts but then again it could be, that 317 you hit is on cold or hot engine, I am presuming hot. Torque is hard to tell but might be around 450 something. Again this is just guesstimate using a few calculations and also JMO. Many will chime in with there's and at the end of the day the best judge is an engine dino and vehicle dino. As with anything the more HP you want the more money investment you need to provide, it's exponential, But still pretty nice numbers.

Pics of your truck would be nice, on the dino even better, and the printouts would be nice also, would love to see the before and after curves.
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  #16  
Old 10-09-2013, 11:15 AM
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When they ran my Challenger on the dyno they had a huge fan in front of it blowing air on the radiator. They gave it a few minutes between runs but it wasn't cooled off. I attached a dyno sheet. He custom tuned it with my Predator but he didn't really add any power, it just made the curve a little wider. I can't remember when the run was made but it seemed like it was fairly early in the spring and it was a pretty warm day, mid 70's but the air was pretty dry which I'm sure helped the power. They made three runs and all the peak numbers were about the same and heat soak didn't seem to be a problem but the big fan helped. It was something like a Land and Sea Dynomite.

Never use dynos as a absolute number but as a tuning guide. These guys that did my car were pretty good and it was fairly cheap, maybe $100. They are located in the Quad Cities are of Illinois and Iowa.
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  #17  
Old 10-19-2013, 08:27 AM
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Hello everybody! After my modifications, I have a small problem which appeared! A light Check engine appears! I went to see the code OBD2 and it gives me P000B! Somebody can say to me it is what?
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  #18  
Old 10-19-2013, 08:31 AM
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In passing I am going to return to you with the curves before and after modifications!
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  #19  
Old 10-19-2013, 10:47 AM
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Originally Posted by Vilaingarnement1 View Post
Hello everybody! After my modifications, I have a small problem which appeared! A light Check engine appears! I went to see the code OBD2 and it gives me P000B! Somebody can say to me it is what?
P000B-BANK 1 CAMSHAFT 2 POSITION SLOW RESPONSE

When was the last time you changed your oil?

Or Did you get an oil change and what did you put in? should be 5w-20

Often this code can appear if the Variable Camshaft Timing (VCT) sensors sense dirty oil or the wrong weight of oil is being used than normal.

If your oil is good and the right 5w-20 than it might be an issue with the cam sensor or cam sensor solenoid.

Sometimes it could be as simple as a program upgrade, check with Diablo about that possibility, they may have a way to adjust the tune for that.


Let us know what you find.

Last edited by Asur; 10-19-2013 at 10:50 AM.
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  #20  
Old 10-19-2013, 12:20 PM
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Quote:
Originally Posted by Vilaingarnement1 View Post
Well thank you everybody for your awsers!After my modifications,here my numbers!That is!Comp cam,Cai K&N,Lt ARH headers,Magnaflow exhaust,Diablo Programmer!Its 317HP and 342Ft-lb at the rear wheels!According to my guy of the speedshop!The real numbers at the crank would be 453Hp and 488Ft-lb!Is it exact?
What comp cam did you use? I'm thinking of going to a custom cam what I'm calling a "268" (mixture of the 266 and 270) just was waiting for someone else to try to see if it was worth doing. You picked up a good gain going from 265 to 317. Mine with similar mods and a 6.4 cam only did 290. Good luck with your project
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