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Old 11-18-2014, 12:59 PM   #15
burnin oil
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Join Date: Jan 2013
Location: Eastern TN
Posts: 1,919
Re: K30 Downgrade to Cummins Project

Quote:
Originally Posted by ryanroo View Post
why is this bad? sure, a ppump will make bigger numbers, but if you are trying to work in the >400hp range, it will be great. the VE pump offers some nice things that the 7100 does not. i am betting Jud is not looking to make a magazine truck, but more a usable old chevy that is kind of cool to boot. the ve motor is a great way to do that. 350-400 HP with the torque numbers a 6bt will put down with that HP is more than enough to make a guy smile when he pushes the skinny pedal.
My next sentance said it all. The rotary will run out of umph before making the power of the big block HP wise. Now if the OP isn't trying to match the power output of the 502 and just wants the torque then the rotary pump will function very well for him. Rotarys are great for mild setups but injector selection is limited. The 7100 just has alot more parts available to go nuts with. Torque on a 12v tends to be 1.5-2 times the HP so a good 350 HP setup should yank 14000lbs through the mountains pretty well. I didn't mean to upset anyone about the rotary pumps and was only trying to say it would run shy trying to match the HP of the 502. Obviously the torque would be alot healthier than the gasser. I definatly agree that the static timing of the 7100 is its weakness.
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