crossover tubes? - Diesel Bombers



12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

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Old 10-15-2008, 05:13 PM
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Default crossover tubes?

I seen where someone was talking about having there truck sound like a tracktor when it is idling. thay told me to just put bigger crossover tubes and it will have that tracktor sound at an idle. Now is this true. If so where could I get bigger crover tubes at. if not what will make it sound like that.
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Old 10-16-2008, 02:20 AM
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no that aint it it depends on the fuel pump theres a guy with a vp44 that has his truck idle like that but i dont remember were i saw it. to make our 12vs do it you need a big pump, cam and alot of fuel
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Old 10-16-2008, 10:35 AM
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Originally Posted by 94cummins12v View Post
no that aint it it depends on the fuel pump theres a guy with a vp44 that has his truck idle like that but i dont remember were i saw it. to make our 12vs do it you need a big pump, cam and alot of fuel
Donít forget timing.
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Old 10-16-2008, 11:59 AM
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Now thats the first for me. I have never heard of someone putting a bigger cam in a diesel. yes in a gas engine never in a diesel. . if you go to diesel performance places on the internet. I have never seen a bigger cam for a diesel. Ill do some checking on that. I called a place today and thay told me all I would have to do is more timing,bigger crossover tubes, injectors.
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Old 10-18-2008, 08:46 PM
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Originally Posted by big_dog37074 View Post
Now thats the first for me. I have never heard of someone putting a bigger cam in a diesel. yes in a gas engine never in a diesel. . if you go to diesel performance places on the internet. I have never seen a bigger cam for a diesel. Ill do some checking on that. I called a place today and thay told me all I would have to do is more timing,bigger crossover tubes, injectors.
12v's don't have cross over tubes
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Old 10-19-2008, 03:50 AM
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Originally Posted by big_dog37074 View Post
Now thats the first for me. I have never heard of someone putting a bigger cam in a diesel. yes in a gas engine never in a diesel. . if you go to diesel performance places on the internet. I have never seen a bigger cam for a diesel. Ill do some checking on that. I called a place today and thay told me all I would have to do is more timing,bigger crossover tubes, injectors.
so who told you, you have to put bigger crossover tubes on you 12v, last time i check my 12v dont have any cross over tubes
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Old 10-21-2008, 11:45 PM
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where have you guys been are you true cummins 12v guys check an 89-90-and early 91 they will have a crossover tube non intercooled motors will have crossover tubes and go check out a maxi spool 2 cam there a cheap good high rise cam for longer duration of air and exhaust if not go see haisley machine will make you one they build it up then regrind it to street/towing specs or pulling specs
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Old 10-22-2008, 02:13 AM
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on a early 12v yes but he isnt posted in the 1st gen 12v section hes in the 2nd gen section wich automatically pertains to our 12 valves
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Old 10-23-2008, 08:32 PM
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It seems like everyone just has to let me know theres not any crossover tubes on a 12v. got ya. Yall still didnt answer my question. how do you make a 12v yes that is a 96 dodge yes I kow it doesnt have CROSSOVER TUBES thank you. have a lope at an idle.
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Old 10-23-2008, 08:55 PM
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370s with big DVs should make it lope a little
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