1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

triple turbo

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Old May 30, 2013 | 02:17 AM
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Default triple turbo

I am building a 1st gen and want to get crazy with it. kind of interested in building a triple turbo setup but not sure what turbos to use? any ideas?
 
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Old May 30, 2013 | 02:25 PM
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if you are going to spend the money, buy a super charger.
 
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Old May 30, 2013 | 02:53 PM
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How about telling us your HP goal along with your plans for fueling this beast and if your going to use nitrous how much you plan on using. That would give us a much better idea of your airflow requirements.

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Old May 30, 2013 | 06:26 PM
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Well, if you got twins set up right....you don't need a 3rd. With 2 you can get out of the turbolag situation. Running 3, you usually get into heat buildup in your intake system. Remember, that intercooler can only handle so much.
On big horsepower builds, we usually spray the intercooler with CO2, and then we also put a large CO2 bulb in the intake runner on the head to lower the temp even more.
Gotta be careful with 3 turbos, you'll heat your intake charge quite a bit.

http://www.designengineering.com/con...get-more-power

After about 900 Horses with the Cummins and twins, we were having to do the Water/Meth Injection and things were getting dicey. We turned the water/Meth way down, and added CRYO2 spray system to the intercooler, and a large tube was plumbed into the top plate on the Cummins Intake Runner., After that, we were able to bump up our boost even more and make more horses.
Gotta be careful, as you make more power, you soon start running into walls
 

Last edited by Screamin' Metal; May 30, 2013 at 06:40 PM.
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Old May 30, 2013 | 07:42 PM
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well I would be happy around the 700-800 hp range fairly new to the 5.9 cummins. (tractor trailer tech for a living) usually mess with gas engines in my free time. but decided to build a 67 dodge crew cab I have a 12 valve and getrag just looking for some good advice to get to my hp goal on some what of a working mans budget.
 
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Old May 30, 2013 | 09:16 PM
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Originally Posted by Screamin' Metal
Well, if you got twins set up right....you don't need a 3rd. With 2 you can get out of the turbolag situation. Running 3, you usually get into heat buildup in your intake system. Remember, that intercooler can only handle so much.
On big horsepower builds, we usually spray the intercooler with CO2, and then we also put a large CO2 bulb in the intake runner on the head to lower the temp even more.
Gotta be careful with 3 turbos, you'll heat your intake charge quite a bit.

CryO2: The Cool Way To Get More Power | Exhaust Header Wrap and Thermal Performance Products | Design Engineering, Inc.

After about 900 Horses with the Cummins and twins, we were having to do the Water/Meth Injection and things were getting dicey. We turned the water/Meth way down, and added CRYO2 spray system to the intercooler, and a large tube was plumbed into the top plate on the Cummins Intake Runner., After that, we were able to bump up our boost even more and make more horses.
Gotta be careful, as you make more power, you soon start running into walls
....so little truth in that post

to the OP a 60mm over a 75mm will do what you are asking with the proper fueling
 
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Old May 30, 2013 | 09:27 PM
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i do keep hearing the hx35/ht3b is a good combo but from what I've seen that combo seems to be good for around 500hp but i would like to see bigger #'s . is it possible to get to the 700-800 range with these and proper fueling?
 
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Old May 30, 2013 | 10:10 PM
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I didn't say a hx35 over ht3b. I would do a S360 over a S475 and yes it will do mid 700s with the right fuel. i'm seeing that you said getrag trans so is this engine a VE 12v?

---AutoMerged DoublePost---

btw our race truck is sitting around 775hp on a single S475 right now
 

Last edited by cummin_un_glued; May 30, 2013 at 10:10 PM. Reason: Automerged Doublepost
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Old May 30, 2013 | 11:12 PM
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OK thanks. yes it is a VE 12v
 
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Old May 30, 2013 | 11:55 PM
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ok first things first your never going to fuel 700hp much less 800hp with a VE pump on fuel only so start looking for a ppump for it
 
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