DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum

Go Back   DODGE RAM FORUM - Ram Forums and Owners Club! - Dodge Truck Forum > Dodge Ram Forum - Mod Zone - Custom Dodge Ram Mods - Dodge Ram Performance > Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8


Notices

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.


Latest Vendor News
AutoAnything
Addictive Desert Designs!
United Radio
Bayou Goat Mounts

Reply
 
Thread Tools
  #11  
Old 07-01-2010, 11:16 AM
MotorCityRam's Avatar
MotorCityRam MotorCityRam is offline
Dodge Ram Forum Senior Member!
 
Join Date: Jan 2010
Location: Royal Oak, MI
Age: 44
Posts: 398
Gender: Male
Vehicle: 2010 Ram QC 4x2
Trim Level: Sport
Color: Inferno Red
Engine: 2009-2010 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:23
MotorCityRam is on a distinguished road
Default

I think you'll likely leave some power on the table with that setup. An X with true duals maybe since it'll balance better and give each bank access to the entire system. With an H...I'd go to 3".

I'd do two rectangular mufflers turned upright next to each other. Only DIDO I can think of worth trying would be that Magnaflow piece that's an X crossover inside the muffler itself. Two birds w/ one stone there.
__________________
Sean M

2010 Quad Cap Sport 4x2 / Inferno Red / HEMI / 3.92s / leather / Truxedo Truxsport tonneau
Reply With Quote
  #12  
Old 07-01-2010, 12:46 PM
chefred112's Avatar
chefred112 chefred112 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Feb 2009
Location: NorCal
Posts: 5,813
Gender: Male
Vehicle: 2005 Dodge Ram
Trim Level: SLT
Color: white
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 9
Rep:656
chefred112 is a splendid one to beholdchefred112 is a splendid one to beholdchefred112 is a splendid one to beholdchefred112 is a splendid one to beholdchefred112 is a splendid one to beholdchefred112 is a splendid one to behold
Default

..I would tend to agree with Sean..
__________________
-fast freddie- one quick 05 hemi qc...with over 250k miles on odo... on the 5.7, stoker 6.4 now...Inertia Motorsports 392 stroker
5.7 e.t.'s: 1/8 - 7.85@93.20, 1/4 - 12.10@113.96 juice - 12.96 NA... 6.4 e.t. 12.59@106 NA
2005 Dodge Ram 1500 QC SLT: 12.107 @ 113.960 MPH
Reply With Quote
  #13  
Old 07-01-2010, 02:17 PM
USC Ram's Avatar
USC Ram USC Ram is offline
Dodge Ram Forum Member
 
Join Date: May 2010
Age: 24
Posts: 72
Gender: Male
Vehicle: 2010 Dodge Ram 1500
Trim Level: Sport
Color: Flame Red
Engine: 2009-2010 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:31
USC Ram is on a distinguished road
Default

just realize that without lowering it, the truck is going to look a little silly with tires significantly smaller then the stock 33"s. If youre absolutely just looking for every last lit bit of speed, thats one thing, nut if its your daily driver, it might not look as good IMO.
__________________
I'd rather push my Dodge then drive a Chevy
Reply With Quote
  #14  
Old 07-01-2010, 02:51 PM
MotorCityRam's Avatar
MotorCityRam MotorCityRam is offline
Dodge Ram Forum Senior Member!
 
Join Date: Jan 2010
Location: Royal Oak, MI
Age: 44
Posts: 398
Gender: Male
Vehicle: 2010 Ram QC 4x2
Trim Level: Sport
Color: Inferno Red
Engine: 2009-2010 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:23
MotorCityRam is on a distinguished road
Default

Completely agree on the tires. that's a big wheel opening to leave unfilled.And if the weight doesn't change much you could see the number drop. A swap to numerically higher gears can skew the rwhp numbers down. A local Ford shop that started offering Mercury Marauder pkg's that included 4.10's starting doing the dyno runs after speed part installation but BEFORE the gear install because some owners were whining about the numbers, even though the cars were noticably quicker.
__________________
Sean M

2010 Quad Cap Sport 4x2 / Inferno Red / HEMI / 3.92s / leather / Truxedo Truxsport tonneau
Reply With Quote
  #15  
Old 07-01-2010, 11:38 PM
SPEEDFREAK's Avatar
SPEEDFREAK SPEEDFREAK is offline
Dodge Ram Forum Senior Member!
 
Join Date: Oct 2009
Location: VA
Posts: 518
Gender: Male
Vehicle: 2010 RAM R/T
Trim Level: 450HP & 450TQ
Color: SPEED WHITE
Engine: 2009-2010 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 6
Rep:180
SPEEDFREAK has a spectacular aura aboutSPEEDFREAK has a spectacular aura about
Default ram rt exhaust

once agine thank you. i just enjoy knowing i can come home after a hard days work and gather info on my truck from the like. ok ill do the x pipe but cant do the muffler one since the x needs to be at the end of my headers and dull mufflers got it. when i buy the tires iam getting the mc drop 2,4. perfect. now i know what to do. thanks
__________________
k&N CAI, 3 1/2" 90 on CAI at TB, 85mm BBK TB,denso sp,180stat,syn oileng & rear gr,Catchcan, Addco sway bars f&r
1 3/4"amer rac hders high flowcats, 2 1/2" H pipe dul 2 1/2" piping, Diablo CT, Bilstin, Mcdrop 2/4,1deg cam 295/45-20bfgkdw,efan,13.4gtech
Reply With Quote
  #16  
Old 07-02-2010, 09:24 AM
kickgas's Avatar
kickgas kickgas is offline
Dodge Ram Forum Newcomer
 
Join Date: Jun 2010
Location: MD
Age: 47
Posts: 18
Gender: Male
Vehicle: 2005 Ram QC
Trim Level: Hemi Sport
Color: Silver
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 0
Rep:10
kickgas is on a distinguished road
Default

I currently have true 2.5 inch duals with a X pipe and 2 Flowmaster 40's. It was good until I put in the X pipe. Now power doesn't come on until around 3400 RPM. Torque went away. I found out that the H pipe promotes torque, the X mid-top end power. I tow a 27 ft trailer, and the Hemi isn't too happy right now. I'm switching to the H pipe as soon as I get some down time.
Also, the A/F is off now through the power band. Running rich now, lots of black in the tailpipes. Not sure if a tuner would correct or not. I'll try to post up some pics from the laptop.

Bud
__________________
05 Hemi Sport, Air Raid intake, true dual exhaust 2.5" Magnaflows
Reply With Quote
  #17  
Old 07-02-2010, 09:53 AM
BLKSVT's Avatar
BLKSVT BLKSVT is offline
Dodge Ram Forum Senior Member!
 
Join Date: Jun 2010
Location: League City, TEXAS
Age: 49
Posts: 1,047
Gender: Male
Vehicle: 2010 Ram 1500 4X4 Hemi
Color: Brilliant Black Pearl
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 5
Rep:222
BLKSVT has a spectacular aura aboutBLKSVT has a spectacular aura aboutBLKSVT has a spectacular aura about
Default

After having a lightning for years now, my thought is use the magnaflow with the built in X, leave it 2 1/2 and call it a day, however you are running true duals. I was making well into the 400hp range and had 540ftlb of torque with that set-up. I deleted the cats, put LT headers on and lost torque, down to 535. Most stock exhaust can handle almost 500hp and high torque ranges from what I have learned. It's a tweaking game at best with your programmer, to pull out the powa!
__________________

"MPG???...I get Smiles Per Gallon!"
2010 RAM SPORT CC 4x4 Hemi
Diablo Tuner, Mufflex 14, Bilstein 5100 leveling shocks, 3.5 lift, 35 in mud tires
Reply With Quote
  #18  
Old 07-02-2010, 09:58 AM
MotorCityRam's Avatar
MotorCityRam MotorCityRam is offline
Dodge Ram Forum Senior Member!
 
Join Date: Jan 2010
Location: Royal Oak, MI
Age: 44
Posts: 398
Gender: Male
Vehicle: 2010 Ram QC 4x2
Trim Level: Sport
Color: Inferno Red
Engine: 2009-2010 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 0
Rep:23
MotorCityRam is on a distinguished road
Default

Well....there's a good example of theory not always proving out in real use. There is the difference that the newer truck is cammed differently (and has the VCT) so YMMV. The system should be as free flowing as possible but when the combination is cammed to take advantage of a particular exhaust system, there can be low-end losses like that.

My suggestion would be to welcome that and use it as an excuse to gear the thing up a bit.

Hate that these are speed density setups. That a/f problem wouldn't be there w/ a MAF setup.
__________________
Sean M

2010 Quad Cap Sport 4x2 / Inferno Red / HEMI / 3.92s / leather / Truxedo Truxsport tonneau
Reply With Quote
  #19  
Old 07-02-2010, 10:05 AM
BLKSVT's Avatar
BLKSVT BLKSVT is offline
Dodge Ram Forum Senior Member!
 
Join Date: Jun 2010
Location: League City, TEXAS
Age: 49
Posts: 1,047
Gender: Male
Vehicle: 2010 Ram 1500 4X4 Hemi
Color: Brilliant Black Pearl
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
Rep Power: 5
Rep:222
BLKSVT has a spectacular aura aboutBLKSVT has a spectacular aura aboutBLKSVT has a spectacular aura about
Default

Quote:
Originally Posted by MotorCityRam View Post
Well....there's a good example of theory not always proving out in real use. There is the difference that the newer truck is cammed differently (and has the VCT) so YMMV. The system should be as free flowing as possible but when the combination is cammed to take advantage of a particular exhaust system, there can be low-end losses like that.

My suggestion would be to welcome that and use it as an excuse to gear the thing up a bit.

Hate that these are speed density setups. That a/f problem wouldn't be there w/ a MAF setup.
I agree totally.....
__________________

"MPG???...I get Smiles Per Gallon!"
2010 RAM SPORT CC 4x4 Hemi
Diablo Tuner, Mufflex 14, Bilstein 5100 leveling shocks, 3.5 lift, 35 in mud tires
Reply With Quote
  #20  
Old 07-02-2010, 10:38 AM
chefred112's Avatar
chefred112 chefred112 is offline
Dodge Ram Forum Senior Member!
 
Join Date: Feb 2009
Location: NorCal
Posts: 5,813
Gender: Male
Vehicle: 2005 Dodge Ram
Trim Level: SLT
Color: white
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
Rep Power: 9
Rep:656
chefred112 is a splendid one to beholdchefred112 is a splendid one to beholdchefred112 is a splendid one to beholdchefred112 is a splendid one to beholdchefred112 is a splendid one to beholdchefred112 is a splendid one to behold
Default

Quote:
Originally Posted by kickgas View Post
I currently have true 2.5 inch duals with a X pipe and 2 Flowmaster 40's. It was good until I put in the X pipe. Now power doesn't come on until around 3400 RPM. Torque went away. I found out that the H pipe promotes torque, the X mid-top end power. I tow a 27 ft trailer, and the Hemi isn't too happy right now. I'm switching to the H pipe as soon as I get some down time.
Also, the A/F is off now through the power band. Running rich now, lots of black in the tailpipes. Not sure if a tuner would correct or not. I'll try to post up some pics from the laptop.

Bud
do you have a programmer (preferably superchips or diablo), datalog fuel trims to see how rich your are running...do you have full details of all your mods?
__________________
-fast freddie- one quick 05 hemi qc...with over 250k miles on odo... on the 5.7, stoker 6.4 now...Inertia Motorsports 392 stroker
5.7 e.t.'s: 1/8 - 7.85@93.20, 1/4 - 12.10@113.96 juice - 12.96 NA... 6.4 e.t. 12.59@106 NA
2005 Dodge Ram 1500 QC SLT: 12.107 @ 113.960 MPH
Reply With Quote
Reply

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Advertisement






All times are GMT -4. The time now is 07:06 AM.


= Copyright RamForumZ.com a Gigathreads.com Network Site =Ad Management by RedTyger
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
vB.Sponsors


=Gigathreads Network=
CLUBS MOPAR NATION DSM GPMM MAMM JAM
DIESEL Diesel Forum      
CHEVY Chevy Camaro Forum Chevy Volt Forum    
CHRYSLER Chrysler 300C Forum      
DODGE Dodge Avenger Forum Dodge Caliber Forum Dodge Challenger Forum Dodge Charger Forum
  Dodge Circuit Forum Dodge Hornet Forum Dodge Magnum Forum Dodge Nitro Forum
  Dodge Ram Forum Dodge Dakota Forum Dodge Durango Forum Dodge Dart Forum
FORD Ford Raptor Forum Ford F150 Forum Ford F100 Forum  
JEEP Jeep Forum      
PONTIAC Pontiac G8 Forum      
SRT SRT Viper Forum SRT Cuda Forum