Performance and Accessories 2nd gen only Talk about Dodge/Cummins aftermarket products for second generation trucks here. Can include high-performance mods, or general accessories.

Not impressed with my Jammer 5's

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Old Jun 13, 2007 | 03:26 PM
  #31  
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This is so very true. Hopefully with the new pump I'll be over 500. Please dear lord let me be over 500hp.
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Old Jun 13, 2007 | 03:28 PM
  #32  
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I hope you make 499.999HP, and 999.999Ft Lb

Chris
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Old Jun 13, 2007 | 03:53 PM
  #33  
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My luck I would.
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Old Jun 13, 2007 | 04:17 PM
  #34  
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It's still 122hp, and 215ft lb more than me

Chris
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Old Jun 13, 2007 | 04:21 PM
  #35  
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From: Cummins Technical Center, IN
Last time I dyno'd I had a stock clutch nearing its end, and DD2s for my EZ.

Things are more better now.

jh
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Old Jun 13, 2007 | 05:47 PM
  #36  
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When I originally posted this thread, I didn't like my new sticks cause when I turned the Juice on stock, it felt weaker than Juice on 3 with my old RV sticks. The top end on this setup is much stronger than my previous on with Juice on 6.
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Old Jun 14, 2007 | 01:36 AM
  #37  
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Originally Posted by HOHN
This is because of the governor that's built into the ECM software. When the ECM detects a drop in RPM from increased load (like the A/C clutch locking), it compensates by adding more fuel. Well, the bigh sticks dump in more fuel than the ECM is expecting, and the RPMs will come up more than the ECM is expecting, so it cuts fuel. This drops the RPMs a bit which repeats the whole process over again.
This sounds excactly like the 'lope' I get when loading the engine with my hot rod pump. Rpms drop when loading the engine, I get a short burst of fuel, then another drop hence the loping effect. Not even Marco has been able to resolve this issue yet
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Old Jun 14, 2007 | 01:57 AM
  #38  
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bigblue24 what kind of EGTs are you getting now that you've run it a little?
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Old Jun 14, 2007 | 10:57 AM
  #39  
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My cruising egts are identical, they rise faster when I give it pedal but for dailing driving, not a problem. I'm sure that on a 1/4 mile run i would be really hot, but on your normal driving.. stop lights, freeway entrances, 0-60 blasts, there is no need to waste money on a bigger turbo. Now if I always drove around with Juice set on 6, yes a bigger turbo would be needed, but I like to have a little less smoke when I drive.
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Old Jun 14, 2007 | 01:29 PM
  #40  
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From: Cummins Technical Center, IN
Originally Posted by Mike Holmen
I can't believe that your running a set of jammers 5 on a stock turbo. The turbo must be a dark brown color. Only 35psi of hot boost. I used to pull 55psi with my twins and the BD155. I'm running a set of BD130's and my boost is 45ish area. No smoke. Both sets of injectors stumble. Change injectors to machers or ddp, the idle smoothens out.
I'm running Don M 150hp sticks on a stock turbo. The turbo is just fine-- perfectly controllable smoke, manageable EGT and good MPG.

Yes, I need way more air, but the amount of overfueling you can get away with is a function of how you use your truck. If you tow heavy, you can't get away with very well at all. If, like me, you never tow and just commute, then you can WAY overfuel and get away with it.

My truck never sees WOT for more than a couple seconds.

jh
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Old Jun 14, 2007 | 02:31 PM
  #41  
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Well said HOHN. I'm definately way over fueled for my turbo but seeing as how my WOT runs are limited to usually around 55-90mph then I'm not to worried. Around town driving and even cruising up hills my EGT's rarely see 1150* (that's running 70mph up a very steep hill where boost is climbing to 20+psi).
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Old Jun 14, 2007 | 02:59 PM
  #42  
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My Jammer Vs I cant get over 1350* and with water/meth over 1300* What's 1500* like???
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Old Jun 14, 2007 | 03:55 PM
  #43  
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From: Cummins Technical Center, IN
This is why when I talk to people about upgrades, I emphasize how important it is to decide of something really *IS* in fact, an upgrade.

For example:

-- You "upgrade" your clutch and now have something that's so grabby you can't back up to your trailer. How is this an improvement?

-- You "upgrade" your turbo only to have so much lag you can't get your trailer moving. How is this an improvement?

-- You "upgrade" injectors to ones that flow a lot more. But you went cheap and got some that smoke uncontrollably and killed your mpg while running very hot. Is this really an upgrade?

-- You "upgrade" your suspension by installing a lift kit that uses cheap parts and poor design. You end up with worse ride quality and less travel-- all just to fit slightly bigger tires. Worthwhile? Only you can decide..

People will look at my truck and laugh at all the upgrades I DON'T have. There are reasons I have elected to spend my money in the way I have, and I'm very methodical in my approach (not that others aren't as methodical).

So before you "upgrade", make sure you're actually better off. Forrest Nearing once ran twins, but now he's on a single-- why is that? Hmmmm.


JMO
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Old Jun 14, 2007 | 05:48 PM
  #44  
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My jammers are an upgrade, my overhead computer says I now get 26 MPG and so I guess I should believe it, it is a computer after all. My RV's only reported 20 MPG overhead.


.... Hand calculations revealed 18.5 MPG average with the RV's... but who hand calculates when the overhead will make you feel so much better.
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Old Jun 14, 2007 | 10:25 PM
  #45  
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I believe in twins. hmm. I would have to be made a believer that a single for a daily driver thats driven in stop/go traffic, towing a heavy trailer. For constant load apps, a single is better yes, but that a power plant or generator set. I've heard to many stories going to supporting that twins work better for daily drivers.
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