Duramax Diesels Forum Truck of the Week
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Old 03-08-2019, 11:31 AM
boosted4life boosted4life is offline
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Default Question on tuning cp3

I have twin modified Danville pumps on my lbz right now and I was curious if I change over to a single 12mm or 14mm pump if there will need to be any tuning changes to the regulator? Also, how much difference in fueling will a 12mm or 14mm pump provide compared to the twin modified pumps?
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Old 03-08-2019, 04:43 PM
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MarkBroviak MarkBroviak is offline
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It will all depend on the truck itself and the combo as to how it acts. Things like lift pump pressure and fueling quantity all play a role in the numbers. You will have to put it on and see how it reacts. I would do a 14mmcp3 from Exergy if you are going from two of my modded LBZ pumps. The single modded LBZ will do 600-650hp so that's 1300hp for the pair and a 14mmcp3 is good for well over 1400hp by itself since we have seen 1380hp at the crank on a single 12mmcp3. Hope this helps!
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Old 03-08-2019, 05:30 PM
boosted4life boosted4life is offline
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Perfect thanks for the reply.
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Old 03-09-2019, 09:12 AM
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Curious as to why you want to go to a single pump? Just figured id ask since the 14mm is 3k$ and you already have the dual set up. Also if you decide to sell the kit i may be interested in the kit with a modded pump.
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Old 03-09-2019, 11:47 AM
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zakkb787 zakkb787 is offline
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Quote:
Originally Posted by Rancelot211 View Post
Curious as to why you want to go to a single pump? Just figured id ask since the 14mm is 3k$ and you already have the dual set up. Also if you decide to sell the kit i may be interested in the kit with a modded pump.
Single pumps are easier to tune, less to go wrong, and do not rob horsepower like duals do.
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