2012 best way to 500 rwhp - Dodge Cummins Diesel Forum
4th Gen Performance Parts Discussion Discussion of Performance Parts For the 4th Gen Trucks...NO ADVERTISING

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post #1 of 46 (permalink) Old 05-13-2017, 12:28 PM Thread Starter
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2012 best way to 500 rwhp

Hello all you gurus. I have been a member on this forum for some time but haven't made a lot of posts. I have 3 trucks all purchased from the classifieds here. I have a 1991.5 Intercooled W250 as my beater truck, with a fuel pin, timing bump, Bosch injectors, upgraded turbo, pushing close to 300HP I guess. I then have a 2006 Mega 2500 with Stainless twin turbo 5 wheels, twin cp3's, 60% over injectors, Banks intercooler, big intake with heater delete, ported head, which pushes about 800HP to a Garmon stage 4 trans. This truck is my toy.

My last truck is a 2012 2500 limited that is deleted with a Raceme programmer running the performance tune. Well, it just blew the head gasket, so I am putting it back together with ARP 625 head studs. The Raceme tune is not enough for me, so I would like to get this thing up to at least 500 RWHP. From my research I will need to upgrade the trans, which I plan on sending to Garmon for a stage 2 upgrade. It seems that I will need to add a lift pump. Also, it seems that I will need more boost. I would like to go to twin turbos, using the stock turbo if possible and adding a second one, probably a 475. I also am planning on going to EFI live. Here are my questions:

1. Is this the best turbo setup? I would prefer to keep the turbine brake, and then I would only need to buy one new turbo. I do have an extra 2nd gen manifold if I need to change manifolds. I don't need the turbine brake, so tell me if this doesn't make sense. I want to keep the EGT's down, and from what I have read 500HP with only the stock turbo is going to get hot, if I can even get it there.

2. Will the stock fuel pump keep up, if it has a lift pump?

3. I am pretty sure I can reach my goal with stock injectors, but tell me if they need to be over sized.

4. Should I put a Banks intercooler on it? Also, do I need an aftermarket intake? I do want to retain the grid heater.

5. Anything else I am missing?

Thanks in advance for any help you can provide.


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post #2 of 46 (permalink) Old 05-14-2017, 12:22 AM
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pretty sure anarchy made north of 500hp on a stock truck, believe it was 528 or something around that number. Are you looking for a usable to 500hp or a "my truck dyno'd at 500hp" because those are two very different goals.

Tons of guys running the stock intercooler well past the 500 mark so id spend that money elsewhere, same with the injectors, again this is just from memory but i believe stock fuel is good to north of 600hp, the 6.7s love air compared to the 5.9s.

the sxe364 is going to get you to your number or any wheel bigger than that, fleece and BD both make modified VGT turbos that are rated to make 600+ so thats an option you can look at as well.

Twins are defintley cool though and i hear the egt difference is pretty awesome, will be the route i go when i finally decided to throw more at the truck
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post #3 of 46 (permalink) Old 05-14-2017, 12:35 AM
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Get a tune and call it a day. Very usable.

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post #4 of 46 (permalink) Old 05-14-2017, 07:50 AM Thread Starter
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I definitely want usable HP, not just 500 on a dyno. Thanks for your replies. I will most likely look at twins, I think it is probably the same as going to a big VGT dollar wise. I know from my 2006 that a good turbo setup really helps things, as the truck gets 800 HP and the EGT's don't go over 1300.
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post #5 of 46 (permalink) Old 05-14-2017, 08:10 AM
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I definitely want usable HP, not just 500 on a dyno. Thanks for your replies. I will most likely look at twins, I think it is probably the same as going to a big VGT dollar wise. I know from my 2006 that a good turbo setup really helps things, as the truck gets 800 HP and the EGT's don't go over 1300.


Tuners are getting nearly 600 horsepower out of a tune on an otherwise stock truck.


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post #6 of 46 (permalink) Old 05-14-2017, 08:19 AM
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Tuners are getting nearly 600 horsepower out of a tune on an otherwise stock truck.


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Not on 10-12s.


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post #7 of 46 (permalink) Old 05-14-2017, 08:32 AM
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Not on 10-12s.


What are you squeezing out of them?


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post #8 of 46 (permalink) Old 05-14-2017, 08:56 AM
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What are you squeezing out of them?


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10-12s are the bastard child. Lucky to get 500-525hp it seems. 13-17s realistically make 540-550 on a good day. Perfect conditions you can squeeze out a little more.

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post #9 of 46 (permalink) Old 05-14-2017, 12:09 PM
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Phil why do the 13+ trucks make more HP etc?


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post #10 of 46 (permalink) Old 05-14-2017, 03:06 PM
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Get a tune and call it a day. Very usable.
This is what I was thinking. It shouldn't be hard to get 500hp.

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post #11 of 46 (permalink) Old 05-15-2017, 10:55 PM Thread Starter
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Well I am adding an S480 turbo to my stock one, adding a lift pump, and adding a Garmon Stage 2 trans. I will keep you posted as to how it works out. Should take about a month to put it all together.
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post #12 of 46 (permalink) Old 05-16-2017, 05:02 AM
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2012 best way to 500 rwhp

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Well I am adding an S480 turbo to my stock one, adding a lift pump, and adding a Garmon Stage 2 trans. I will keep you posted as to how it works out. Should take about a month to put it all together.


No need for the lift pump if you're staying stock injector/stock cp3. I'd run an 75/96/1.32 over stock versus an s480 as well.


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