Big Cam 400 HP
Big Cam 400 in 81' Peterbilt. Motor seems doggly and underpowered compared to others I have driven. I am considering having the overhead run, and turning up the pump. Any other ideas? How much can I turn it up without heat issues? Thanks.:c:
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Welcome to the site. I moved your thread here so you could get the best answers from the right set of experts. Good luck to ya on this.:c:
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Thanks.:U:
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try this.
search low buck diesel power i have done big cam 400 this way .dont go to far you will melt pistons!! good luck
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Originally Posted by Wildcat385
(Post 326020)
How much can I turn it up without heat issues? Thanks.:c:
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I drove an Autocar with a 400 Big Cam for about a month. That was a pullin son of a gun, probably one of the hardest pullin I ever drove. Get the overhead done and see how it goes. I hated that truck but loved that engine
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Do the overhead, and put in a couple numbers smaller fuel button. Dont just jump to a super small number. Pull yours out, then a Cummins shop should have the right ones. There's plenty available online too.
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Diesel Injection - Where the Strong Ones Come From go to "bruce's horsepower and torque articles" There is much more then A LOT of reading, but take the time to read it all.
:rocking: Go here FIRST. You really have to read it all, there are little tips and tricks that if you start to just skim it, you will miss them. |
i will tell you now your fuel lines are shot. get big lines and a bigger filter head. order bruces duel fuel line kit and turn the pump up. easy 75 to 100 hp. if thats not good for you get a retarded cam key, put more fuel to it. keep a eye on the EGTs if you got some money i can make that truck breath fire. i pulled a 7 axle 144,000 permit lowboy with a bigcam formula 444 for years. (in the fast lane)
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FOR SALE CUMMINS BIG CAM REBUILT WITH NEW PARTS FROM PITTSBURG POWER CAM HEAD CERAMIC PISTON BEARING FUEL PUMP OVER $ 12000.00 SPENT AROUND 700 HP NEVER RAN SINCE REBUILT
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