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.

are cummins owners liars?

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Old 01-29-2007 | 06:51 AM
  #16  
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You definately need a converter and valvebody. Most like would be great advice to have a complete performance rebuild too. Do it once and right and it will make you happy for a long time.
The extra RPM from the GSK is needed too.
Old 01-29-2007 | 07:32 AM
  #17  
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Have you done anything to get more boost? The TST kit comes with an elbow mine mounted on the turbo, and the specs were that it took it from the stock 19lbs to 30lbs of boost. The #8 plate that I have made a world of difference on my truck

John
Old 01-29-2007 | 08:14 AM
  #18  
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this guy thinks his 930 is a fast sob, but when someone says they will race him he doesn't respond. hopefully he will learn
Old 01-29-2007 | 12:56 PM
  #19  
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Originally Posted by Hammily
Have you done anything to get more boost? The TST kit comes with an elbow mine mounted on the turbo, and the specs were that it took it from the stock 19lbs to 30lbs of boost. The #8 plate that I have made a world of difference on my truck

John
I second the Boost elbow. You need to get one if you don't have one, there cheap. Also as the others have stated a nice single disk and a valvebody will help out TONS! Oh and you may want to find a good intake to keep those EGTs in check.
Old 01-29-2007 | 01:07 PM
  #20  
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What was your RPM and boost at the point where you were underwhelmed?
Old 01-29-2007 | 11:35 PM
  #21  
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From: Mexico!
Originally Posted by lews930
I'll run my 930 against any cummins any time. as for the evo, it's for corners.
lewis
Hope ya noticed that the next post to that one, was by a guy with a 800+ HP cummins

and no he isnt a liar with his HP either

You really need to dig into that inj pump.... often throw a plate in it and be done, doesnt help a whole lot,,,, if you would spend only 1/4 the time in these forums... you'd know thow much more there is to a inline P-pump inj pump... and a 12 valve cummins
Old 01-29-2007 | 11:54 PM
  #22  
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Talking

i'll run any ricer or krouter
Old 01-30-2007 | 05:34 PM
  #23  
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Ok, sorry to be away at work but who wants some saurkraut? please! 500 hp in a 3,000 lb 930 versus 500 in a 7,000 lb truck. I'll bet you think you can run with super bike motorcycles too dont you?

Ok, back to serious business. My 03 with h.o. 6 speed pulled anything that was put behind it. I would like to think that this sled could do the same but I'm having second thoughts. As for a t.c. and valve body, too much $$$. I would install a manual tranny before that.

My rpms were at 2250 to 2500 when the egt went through the roof. Today I pulled the trailer with 14k lbs of trees on it. Thr trailer empty weighs 7,300 lbs. Couldnt pull the thing in overdrive without the egt going in the red zone and trans temp going to 170 degrees.
I had to take out of overdrive and then the egt and trans temp came down. when starting off from a redlight, not only did it take an hour to get up to 45 mph but the egt was hovering around 900 to 1000 until I got to 45 mph. Is this normal or am I expecting too much from this motor/trans combo?

I made a HUGE mistake selling the 03 for this thing!

thanks for the input guys

lewis
Old 01-30-2007 | 05:56 PM
  #24  
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Lewis:

Did you add a boost elbow to the turbo when you did the plate? Since you custom ground your own, you might not realize that you need to swap out the stock boost elbow. What boost pressure do you see when your temps are high?

When I did a #10 (with boost elbow) and the 3K GSK it was a totally different truck, so something is not right with your truck.

Above posts are also correct that the AT is robbing power or may already be shot.

Check the simple things too, such as the overflow valve. It can rob power as well and is a simple fix.

Keep posting updates and let us know what progress so we can help. Don't mind the rice and kraut eaters, they aren't such bad guys.

Paul
Old 01-30-2007 | 06:15 PM
  #25  
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Boost elbow? Is that the little brass elbow on the turbo that goes to the wastegate? If so, no I didnt. Did not know that I had to do that. That elbow would only incrase my available boost before waste gate opening. I was at 18-20 lbs when egt went skyward.

I hope it is the auto tranny robbing power and not the shaker.

I dont mind the banter with the guys, I would just like to see this truck perform as other people say they do. As stated before, I dont need it to haul ***, just haul my trailer


lewis
Old 01-30-2007 | 06:24 PM
  #26  
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Yup that elbow needs to be changed. You will have better control of your temps with 30 35 lbs of boost than 20.
Old 01-30-2007 | 06:32 PM
  #27  
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Bingo!

You may have found problem number 1. You can run the stock turbo into the low 30 psi's before it pushes more hot air, but will need the boost elbow to do this. This should keep you temps down better too.

You will also benefit from the 3K GSK as your truck will start to defuel at around 22 2500 rpm even with the fuel plate. The GSK just gives you more rpm range.

If you do the above things chances are that you will go through the stock tranny any way, so I would plan on upgrading that. You can do a TC and valve body for way cheaper than swapping to a manual. I'm on my third tranny. The second one was built for 300+ HP but I long ago exceeded that. My Goerend's is holding up great even with some sled pulling, so these trucks can haul. Wish I was closer so you could go for a ride.

Paul
Old 01-30-2007 | 06:54 PM
  #28  
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Ok, where do I get this magic elbow? and what should it cost?
I think your last few sentences said it all, you're on the 3rd tranny. If I read the literature correctly, the 100 plate should give 675 ft lbs of tq. I dont expect the auto tranny to take that for long. attach the trailer and boom. Sounds like I would be chasing my tail with the auto even it is cheaper than a swap.

On the other side of the coin I havent been able to locate a tanny and xfer case for a swap so I may end up with a broken truck before long.

Lets see if I have this right. I run 18-20 lbs of boost and my temps are high. I add more boost via the elbow swap and my temps go down? how is this possible? should I be looking for other things wrong with this engine?

lewis
Old 01-30-2007 | 07:09 PM
  #29  
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It's all a matter of efficiently burning the fuel. Right now you have more fuel than air. Also, with stock timing the temps will run hotter when you have more fuel. You may/will want to advance the timing a bit to help with temps.

The boost elbow is here http://www.tstproducts.com/index.asp...PROD&ProdID=33

My problem with the tranny was I didn't listen to the guy who sold me the TC. He said it would hold 300 HP, and it did. It was when I went beyond that was when I did in the tranny. I finally did it the right way the last time (live and learn).

Hope all of this helps. These trucks will perform when tuned.
Old 01-30-2007 | 07:17 PM
  #30  
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yes it does. am i digging a hole in the search for the holy grail? it seems i Have bee here before. I used to have a turbo rx7 and went looking for more power. In order to do this you had to do that. It never ended and I was never satisfied with the "mods" as I was before I started.

Not rying to sound negative but I hope you can feel my frustration


lewis


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